How it Works
Swagelok
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MS-TBE-1 series
User Manual
44 pgs1.38 Mb0

Swagelok MS-TBE-2 series, MS-BTB-M series, MS-TBE-1 series, MS-BTB-2 series, MS-BTB-1 series User Manual

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Bench Top Tube Bender
User’s Manual
■
Electric and manual units
■
Bends fractional and metric tubing
■
CE compliant
2 Bench Top Bender User’s Manual
Safety Instructions ........................... 2
Technical Data .............................. 2
Tubing Data ................................. 3
Bend Layout ................................ 4
Manual Bender
Product Information .......................... 6
Setup ...................................... 7
Calibration .................................. 8
Unloading the Bender ......................... 9
Operation .................................. 10
Electric Bender
Product Information .......................... 11
Setup ...................................... 12
Calibration .................................. 14
Unloading the Bender ......................... 14
Operation .................................. 15
Measuring the Bend Angle ....................... 16
Bend Data Tables
Fractional Tubing ............................ 17
Metric Tubing ................................24
Fractional Tubing with Metric Dimensions ......... 30
Minimum Length of Last Leg
Fractional Tubing .............................37
Metric Tubing ............................... 38
Fractional Tubing with Metric Dimensions ......... 39
Maintenance .................................. 40
Replacement Parts ............................. 41
Accessories .................................. 43
Troubleshooting ............................... 44
Warranty ..................................... 44
Safety Instructions
READ THIS MANUAL BEFORE USING THE BENCH TOP TUBE BENDER.
WARNING
Statements that identify conditions or practices that could result in death or serious injury.
CAUTION
Statements that identify conditions or practices that could result in minor or moderate injury or damage to property.
CAUTION - EYE PROTECTION
Eye protection must be worn while operating or working near equipment.
CAUTION - PINCH POINTS Keep hands, loose clothing, and long hair away from moving parts. Injury can occur.
Technical Data
Bending Range
1 to 180°. Do not bend tube in excess of 180°.
Dimensions (tube bender in case)
Width—21 in. (53 cm)
Depth—11 in. (28 cm)
Height—14.5 in. (37 cm)
Weight (tube bender in case, excluding tooling)
Manual unit—75 lb (34 kg)
Electric unit—79 lb (36 kg)
Power Requirements (electric unit)
MS-BTB-1—110 V (ac) 50/60 Hz; maximum current: 10 A
MS-BTB-2—230 V (ac) 50/60 Hz; maximum current: 5 A
Bench Top Bender User’s Manual 3
Tubing Data
■
The Swagelok bench top tube bender bends 1/4, 3/8, 1/2, 5/8, 9/16, 3/4, 7/8, 1 in., and 1 1/4 in. and 6, 10, 12, 14, 15, 16, 18,
20, 22, 25, 28, and 30 mm outside diameter tubing in a variety of wall thicknesses.
■
Tubing should be free of scratches and suitable for bending and flaring.
Fractional Tubing
Suggested Tubing Ordering Information
Tub e
1 1/4 4.41 0.065/0.120 0.083/0.120
Approx
OD
1/4 1.42 0.028/0.065
3/8 1.42 0.035/0.065 0.035/0.083
3/8 2.20 0.035/0.065 0.035/0.083
1/2 1.42 0.035/0.083
1/2 2.20 0.035/0.065
5/8 1.81 0.035/0.095 0.049/0.095
3/4 2.20 0.049/0.109
7/8 2.64 0.049/0.109
Bend
Radius
1 3.23 0.049/0.120 0.065/0.120
Carbon Steel
Wall Thickness
Min/Max
Dimensions, in.
Stainless Steel Wall Thickness
Min/Max
High-quality, soft-annealed, seamless carbon steel hydraulic tubing ASTM A179 or equivalent. Hardness 72 HRB (130 HV) or less.
Fully annealed, high-quality (Type 304, 316, etc.) (seamless or welded and drawn) stainless steel hydraulic tubing ASTM A269 or A213, or equivalent. Hardness 80 HRB (114 HV) or less.
Medium-Pressure Tubing IPT Series Tubing
Heav y-Wall
Nominal
Tub e
OD
1/4 1.42 0.065/0.095 0.028/0.065 0.071 0.084
3/8 1.42 0.083/0.134 0.035/0.083 — —
3/8 2.20 0.083/0.134 0.035/0.083 0.086 0.125
1/2 1.42 0.083/0.188 0.049/0.109 — —
9/16 3.23 — — 0.125 0.187
Approx
Bend
Radius
Annealed Stainless Steel Wall Thickness
Min/Max
Cold Drawn
1/8 Hard Stainless Steel Wall Thickness
Min/Max
Dimensions, in.
Medium-
Pressure Stainless Steel Wall Thickness
High-Pressure Stainless Steel Wall Thickness
Metric Tubing
Tub e
Approx
OD
Bend
Radius
6 36 0.8/1. 2
10 36 1.0/1.5
12 36 1.0/2.2 1.0/2.0
14 46 1.0/2. 2
15 46 1.0/2. 2
16 46 1.0/2.5 1.0/2.2
18 56 1.2/2.5
20 67 1.2/2.8
22 67 1.2/ 2. 8
25 82 1.2 / 3.0 1.8 /3.0
28 112 1.8 /3.0 1.8/3 .0
30 112 2.0/3.0
Carbon Steel
Wall Thickness
Min/Max
Dimensions, mm
Stainless Steel Wall Thickness
Min/Max
Suggested Tubing Ordering Information
High-quality, soft-annealed, carbon steel hydraulic tubing DIN-2391 or equivalent. Hardness 130 HV (72 HRB) or less.
Fully annealed, high-quality (Type 304, 316, etc.) stainless steel tubing EN ISO 1127 or equivalent. Hardness 180 HV (80 HRB) or less.
Suggested Tubing Ordering Information
Seamless, austenitic, cold-drawn tubing ASTM A213 or equivalent. Hardness 95 HRB (210 HV) or higher.
4 Bench Top Bender User’s Manual
Single Bend 90.eps
Bend Layout
This bender can be used to form single, offset, and other bends. This section contains information for measuring and marking the tube prior to bending.
Note: Make all marks 360° around the tube.
Single Bend
1. Place a reference mark at the end of the tube from which you are beginning the measurements.
2. Measure from the reference mark and make a measurement mark on the tube at a distance equal to the length of first leg. This mark is the vertex of the bend.
3. Measure the bend deduction distance for the angle being bent from the measurement mark (see Bend Data Tables beginning on page 17) and make a bend mark on the tube.
■ If the bend deduction is positive, place the bend mark toward the reference mark.
■ If the bend deduction is negative, place the bend mark away from the reference mark.
4. Refer to the appropriate Operation section to bend the tube.
Length of First Leg
Reference mark
Bend mark
Single Bend
Multiple Bends
The Measure-Bend Method
1. Follow Single Bend steps 1 through 4.
2. Using the vertex of the previous bend as the reference mark, repeat steps 2 through 4 for the next leg. (The vertex is where the center lines of the two legs of the angle intersect.)
Example:
Using 5/8 in. OD tube and an aluminum bend shoe, make a 90° bend 12 inches from the reference mark followed by a 45° bend with 12 inches between bends.
1. Place a reference mark at the end of the tube from which you are beginning the measurements.
For the rst leg:
2. Measure 12 inches from the reference mark and make a measurement mark to indicate the end of the first leg.
3. The bend deduction in the Fractional Tubing Bend Data table for a 90° bend using 5/8 in. tubing and an aluminum bend shoe is 1 3/4 in.
4. Place the bend mark 1 3/4 in. from the measurement mark going towards the reference mark.
5. Bend tube 90° according to the appropriate Operation section.
For the second leg:
6. Measure 12 inches from the vertex of the 90° bend and make a second measurement mark, away from the reference mark.
7. The bend deduction distance in the Fractional Tubing Bend Data table for a 45° bend using 5/8 in. tubing and an aluminum bend shoe is 11/16 in.
8. Place a second bend mark 11/16 in. from the second measurement mark going towards the first bend.
9. Bend tube according to the appropriate Operation section.
Bend deduction
Length of first leg
Reference
mark
5/8 in. OD
tube
Bend mark
Bend deduction
11/ 16 i n.
Ver tex
12 in.
Bend mark
First Bend (90°)
45°
Second Bend (45°)
Measurement mark
Bend deduction
1 3/4 in.
Center line
Ver tex
Length of second leg 12 in.
Reverse Bends
The Measure-Bend Method
Sometimes a multiple bend layout will require that a bend be made in reverse. A reverse bend is made with the end of the tube opposite the reference mark inserted into the bend shoe rather than the end with the reference mark.
1. Measure from the vertex of the preceding bend and place
a second measurement mark farther down the tube at a distance equal to the desired length of the leg.
2. Measuring from that measurement mark, place a bend
mark on the tube at the bend allowance for the angle being bent. (See Bend Data tables beginning on page
17).
■ If the bend allowance is positive, place the bend mark away from the preceding bend.
■ If the bend allowance is negative, place the bend mark in the direction towards the preceding bend.
3. Bend tube according to the appropriate Operation
section. Note: When loading the tube into the bender to make
a reverse bend, ensure that the end with the reference mark is not inserted into the bend shoe.
Bench Top Bender User’s Manual 5
Offset Calculations
O
E
L
When offset exists, determine the length of offset (L) before calculating for the adjustment from the tube bend. To determine the length of offset, select the offset angle (E). Then, multiply the offset dimension (O) by the offset bend allowance.
Angle Offset Bend Offset (O) Length of Offset (L) (E) Allowance
22.5° 2.613 × ________ = _______________
30° 2.000 × ________ = _______________
45° 1.414 × ________ = _______________
60° 1.154 × ________ = _______________
6 Bench Top Bender User’s Manual
Manual Bender
Product Information
Bend shoe
Carrying
handle
Roller bracket assembly
Roller pins
Roller bracket lever
Roller knob
Bend degree wheel
(2 1/2° increments)
Hex drive shaft
D pin
D roller
G pin
G roller
Roller bracket assembly
Low bend­speed selector
Medium bend­speed selector
Zero reference mark
Reference mark
Bracket pin
Bracket post
High bend­speed selector
Drill yoke support
Bend shoe
Clamp arm
Hand crank
Support bracket
Aluminum only, recommended when using 1 in. or 25 mm bend shoe.
Roller bracket lever
Bracket post stop
Bracket assembly stop
Roller knob
Bench Top Bender User’s Manual 7
CAUTION
When lifting the bender, first place one hand under the bender, then pick up the unit by grabbing the carrying handle with your other hand.
Setup
1. Place the hand crank on the high bend-speed selector.
2. Rotate the hand crank until the zero reference mark
on the hex drive shaft is between the 2 and 3 o’clock position, when viewed from the operating position.
2 o’clock
Hex drive
shaft
Zero
reference
mark
3. Rotate the roller knob counterclockwise until it stops.
Roller
knob
3 o’clock
5. Install the roller bracket assembly on the bracket post.
Note: The roller bracket assembly stop must be to the
right of the bracket post stop.
Roller
bracket
assembly
Bracket
post stop
Bracket post
Roller bracket assembly stop
6. Place the roller bracket lever on the bracket pin.
Note: The lever must be fully bottomed on the pin.
7. Lift the roller pins, place the appropriate rollers in the marked locations on the roller bracket, and replace the roller pins.
G roller pin
G roller
Roller
bracket
lever
D roller pin
D roller
Roller bracket
4. Place the appropriate bend shoe on the hex drive shaft, aligning the zero reference marks on the shoe and the shaft. The bend shoe must be fully bottomed on the hex drive shaft.
Zero reference
Bend shoe
Hex drive shaft
marks
Note: The roller pins must be fully engaged with the
roller bracket assembly.
8. Mark tube according to Bend Layout.
9. Carefully insert the tube into the bend shoe, past the clamp arm.
Caution
The end of the tube must extend past the right edge of the clamp arm to prevent potential damage to the tube during bending.
Tub e
Bend
shoe
Right edge
Clamp arm
8 Bench Top Bender User’s Manual
10. Align the bend mark on the tube with the reference mark on the bend shoe.
Bend
Reference
mark
Bend
mark
shoe
Tub e
11. Turn the roller bracket lever clockwise until the roller
bracket assembly stop makes contact with the bracket post stop.
Roller
Bracket
post stop
Contact
bracket assembly stop
12. Hold the tube and turn the roller knob clockwise until the G and D rollers both make contact with the tube and the roller knob is tight.
Note: The rollers may need to be guided onto smaller
diameter tubing.
13. Ensure there is approximately 3/8 in. or 10 mm clearance between the D roller and the clamp arm of the bend shoe.
Clamp arm
To decrease clearance: Rotate the roller knob clockwise while slowly rotating the
hand crank counterclockwise.
Note: The roller knob must be tight.
Note: Do not turn the roller knob after this point or bend
consistency will be affected.
Roller bracket lever
Hand crank
Calibration
Calibration is the process of positioning the bend degree wheel to accurately display the angle being generated by the be n d e r.
Calibration accounts for tube variables and mechanical play in the bender, which is typically observed as springback. Different materials, different lots of the same material, and different wall thicknesses of the same material may exhibit different bend characteristics.
Once the bender has been calibrated, recalibration is recommended whenever:
■ OD or wall thickness of tube being bent is changed.
■ The roller knob has been turned after Calibration completed.
■ The bend degree wheel does not accurately display the bend angle.
D roller
To increase clearance: Rotate the roller knob counterclockwise while slowly rotating
the hand crank clockwise and maintaining straight tube.
3/8 in.
1. Place the hand crank on the desired speed selector
for the tube being bent.
■ Low bend-speed selector (1) is suggested for large
diameter or heavy-wall tube.
■ Medium bend-speed selector (2) is suggested for
intermediate size and medium-wall tube.
■ High bend-speed selector (3) is suggested for small
diameter and thin-wall tube.
2. Slowly rotate the hand crank until the tube begins to
deect or bend (looking to the right of the rollers).
■ On low (1) and high (3) bend speeds, rotate the hand
crank clockwise.
■ On medium (2) bend speed, rotate the hand crank
counter-clockwise.
Bench Top Bender User’s Manual 9
3. Keep the hand crank still and rotate the bend degree wheel to zero.
Caution
Releasing the hand crank while tube is under load may cause the hand crank to spin, possibly leading to injury.
4. Rotate the hand crank until the bend wheel displays 5° less than the desired bend angle. This will prevent setup scrap due to overbending.
Example: For a desired bend angle of 90°, rotate the hand
crank until the bend degree wheel reads 85°.
5. Unload the bender (see Unloading the Bender) and measure the bend angle of the tube (see Measuring the Bend Angle). Make note of this measurement as it is likely to be different than the angle displayed on the bend wheel.
6. Reload the tube into the bender, lining up the bend mark and the reference mark.
7. Rotate the hand crank until the bend degree wheel reads the angle from step 4 (in example: 85°).
The bend angle indicated on the bend degree wheel will now be very close to the bend angle produced. If further adjustment is desired repeat steps 6 through 10.
Note: Tube springback is cumulative. Depending on the tube
variables, a smaller bend angle builds up less tube springback during the bending process than a larger bend angle. For example, if a 30° bend is attempted using a bender that was calibrated to make a 90° bend, the resulting bend may be larger than desired. Conversely, if a 150° bend is attempted on the same bender, the resulting bend may be smaller than desired. It is advised to verify each bend angle.
Unloading the Bender
Note: Do not turn the roller knob to unload the bender.
Doing so will affect bend consistency.
Caution
Releasing the hand crank while the tube is under load may cause the hand crank to spin, possibly leading to injury.
1. Rotate the hand crank in the direction opposite that used to bend the tube.
2. As the hand crank is rotated, gently push the roller bracket lever counter-clockwise until the rollers swing away from the tube and the tube can be removed from the bender.
Note: Do not force the roller bracket lever.
8. Keep the hand crank still and rotate the bend degree wheel to the measurement noted in step 5 (in example: 88°). This calibrates the bend degree wheel by setting it to display the actual bend angle being produced.
9. Continue to rotate the hand crank until the bend degree wheel reads the desired bend angle.
Hand crank
Roller bracket lever
10. Unload the bender (see Unloading the Bender) and measure the bend angle of the tube.
10 Bench Top Bender User’s Manual
Operation
Before operating the bender mark the tube (see Bend Layout) and follow the Setup and Calibration procedures.
CAUTION - PINCH POINTS
1. With the zero reference mark between the 2 and 3 o’clock position, place the hand crank on the desired speed selector.
■ Low bend-speed selector (1) is suggested for large diameter or heavy-wall tube.
■ Medium bend-speed selector (2) is suggested for intermediate size and medium wall tube.
■ High bend-speed selector (3) is suggested for small
diameter and thin-wall tube.
2. Insert the tube carefully into the grooved section of the
bend shoe, past the clamp arm.
CAUTION
The end of the tube must extend past the right edge of the clamp arm to prevent potential damage
to the tube during bending.
Tub e
Note: If the rollers touch the tube and prevent the stops from
making contact, gently turn the roller bracket lever clockwise while rotating the hand crank.
Hand crank
Roller bracket lever
5. Check the following before continuing:
■ The bend mark remains aligned with the reference mark on the bend shoe.
■ The tube is positioned in the correct plane for bend.
■ The tube will not contact the bender housing during
the bend operation (for a multiple bend).
Bend
shoe
Right edge
Clamp arm
3. Align the bend mark on the tube with the reference mark on the bend shoe.
Reference mark
Bend mark
4. Turn the roller bracket lever clockwise until the roller bracket assembly stop and the bracket post stop make contact.
Roller
Bracket
post stop
bracket assembly stop
Undesired tube contact
6. Rotate the hand crank until you reach the desired bend angle on the bend degree wheel.
■ On low (1) and high (3) bend speeds, rotate the hand
crank clockwise to bend the tube.
■ On medium (2) bend speed, rotate the hand crank
counter-clockwise to bend the tube.
7. Unload the tube from the bender. See Unloading the Bender.
8. Verify the bend angle (see Measuring the Bend Angle). Make adjustments if necessary (see Calibration).
9. Use the hand crank on the high bend-speed selector (3) to return the bend shoe to the starting position.
Contact
Note: Do not turn the roller knob or bend consistency will
be affected.
Bench Top Bender User’s Manual 11
Electric Bender
Product Information
Carrying handle
Power cord
Bend angle
thumb wheels
Bend shoe
LED display
Roller pins
Roller­bracket assembly
Roller bracket lever
Roller knob
Foot switch receptacle
Toggle switch
D pin
D roller
G pin
G roller
Roller bracket
Hex drive shaft
Overload indicator
Zero reference
mark
Bend shoe
Reference mark
Bracket pin
Bracket post
Bracket assembly stop
Bracket post stop
Clamp
arm
Support bracket
Aluminum only, recommended when using 1 in. or 25 mm bend shoe.
Roller bracket lever
Roller knob
12 Bench Top Bender User’s Manual
Electric bender must be operated in a safe environment to avoid risk of re, explosion, or electric shock.
WARNING
Voltage greater than 30 V (ac) is present.
WARNING - KEEP DRY.
Do not expose the equipment to water or wet locations.
WARNING - FIRE OR EXPLOSION.
Do not use equipment in a combustible or explosive atmosphere. Flammable liquids or gases could ignite.
Grounding and Extension Cord Information
WARNING
Electric bender must be grounded against electrical shock. It is equipped with a three-wire conductor and three-prong plug to fit a grounded receptacle. Never connect the green or green/yellow wire to a live terminal.
WARNING
For safe operation of the electric bender, the extension cord wire size must meet the following specifications: For 0 to 25 ft (0 to 7.5 m), the recommended minimum wire gauge is 14 AWG or 1.5 mm. For 25 to 50 ft (7.5 to 15 m), the recommended minimum wire gauge is 12 AWG or 2.5 mm.
CAUTION
When lifting the bender, first place one hand under the bender, then pick up the unit by grabbing the carrying handle with your other hand.
Setup
It is recommended that scrap tube be used during setup and calibration of the Electric Bench Top Tube Bender.
3. Rotate the roller knob counterclockwise until it stops.
Roller knob
4. Place the appropriate bend shoe on the hex drive shaft, aligning the zero reference marks on the shoe and the shaft. The bend shoe must be fully bottomed on the hex drive shaft.
Zero reference marks
Bend shoe
Hex drive shaft
5. Install the roller bracket assembly on the bracket post.
Note: The roller bracket assembly stop must be to the
right of the bracket post stop.
Bracket
post
Bracket
post stop
Roller bracket assembly stop
1. Plug in the power cord.
2. Hold the toggle switch in the unload direction until the motor stops. The zero reference mark on the hex drive shaft should now be between the 2 and 3 o’clock position.
Note: T he toggle switch is programmed to have a
safety time delay of approximately two seconds between operations.
2 o’clock
Hex drive
shaft
Zero
reference
mark
3 o’clock
6. Place the roller bracket lever on the bracket pin. Note: The lever must be fully bottomed on the pin.
7. Lift the roller pins, place the G and D rollers in the marked locations on the roller bracket, and replace the roller pins.
Note: The roller pins must be fully engaged into the
roller bracket assembly.
G roller pin
G roller
Roller
bracket
lever
D roller pin
D roller
Bracket pin
Roller bracket assembly
Bench Top Bender User’s Manual 13
8. Carefully insert the tube into the bend shoe, past the clamp arm.
CAUTION
The end of the tube must extend past the right edge of the clamp arm to prevent potential damage to the tube during bending.
Tub e
Bend
shoe
Right
Clamp arm
9. Turn the roller bracket lever clockwise until the roller bracket assembly stop makes contact with the bracket post stop.
Bracket
post stop
edge
Roller bracket assembly stop
If all three conditions are met, make note of the value
appearing on the three right bend angle thumb wheels and proceed to Calibration.
If all three conditions are not met:
a. Turn the roller knob counter-clockwise until the tube
can be removed. Remove tube.
b. Advance the right-most bend angle thumb wheel
one digit.
Bend angle thumb wheel
c. Hold the toggle switch in the bend direction until the
motor stops.
Contact
10. Hold the tube in the bend shoe and turn the roller knob clockwise until both the G and D rollers make contact with the tube.
Note: Smaller diameter tube may need to be guided into
the rollers.
11. Once the roller knob is tight, the following conditions must be met:
■ The roller bracket assembly stop and the bracket post
stop must maintain contact.
■ Both rollers must make contact with the tube.
■ There must be approximately 3/8 in. or 10 mm
clearance between the D roller and the clamp arm of the bend shoe.
Clamp arm
D roller
3/8 in.
d. Repeat steps 9 through 11 until all three conditions
are met.
12. Make note of the value on the right-most bend angle thumb wheel.
Bend angle thumb wheel
Example only
13. Turn the roller knob counter-clockwise until the tube can be removed. Remove tube.
14. Advance the two right-most bend angle thumb wheels until they display 010 or higher.
15. Hold the toggle switch in the bend direction until the motor stops. Wait two seconds, then hold the toggle switch in the unload direction until the motor stops.
16. Proceed to Calibration.
14 Bench Top Bender User’s Manual
Calibration
Calibration is the process of accurately accounting for tube variables and mechanical play in the bender, which is typically observed as springback. Different materials, different lots of the same material, and different wall thicknesses of the same material may exhibit different bend characteristics.
Once the bender has been calibrated, recalibration is recommended whenever:
■ OD or wall thickness of tube being bent is changed.
■ The roller knob has been turned after Calibration has been completed.
1. Set the right-most bend angle thumb wheel to the value
noted in step 12 of Setup. Hold the toggle switch in the bend direction until the motor stops (do not jog the switch).
2. Carefully insert the tube into the bend shoe, past the
clamp arm.
CAUTION
The end of the tube must extend past the right edge of the clamp arm to prevent potential damage to the tube during bending.
5. Set the bend angle thumb wheels to the desired bend angle.
6. Hold the toggle switch in the bend direction until the motor stops (do not jog the switch).
CAUTION - PINCH POINT
7. Unload the bender (see Unloading the Bender) and measure the bend angle of the tube (see Measuring the Bend Angle).
If the actual bend is smaller than the desired bend angle:
Subtract the actual bend angle from the desired bend angle. The difference is the amount that must be added to the desired bend angle when setting the bend angle thumb wheels for all subsequent bends made with this tube. For example: The desired bend angle entered is 90°.
The resulting calibration sample measures 86°. 90 – 86 = 4. The bend angle thumb wheels must be set 4° more than the desired bend angle for subsequent bends with this size tube, i.e. for a 90° bend, the bend angle thumb wheels must be set at 94°.
Bend angle thumb wheels
Tub e
Bend
shoe
Right
Clamp arm
3. Turn the roller bracket lever clockwise until the roller
bracket assembly stop makes contact with the bracket post stop.
Bracket
post stop
Contact
4. Hold the tube in the bend shoe and turn the roller knob clockwise until the G and D rollers both make contact with the tube.
Note: The rollers may need to be guided onto smaller
diameter tubing.
Note: The clearance between the D roller and the clamp
arm will now be approximately 1/4 in.
Note: Do not turn the roller knob after this point or bend
consistency will be affected.
edge
Roller bracket assembly stop
If the actual bend is larger than the desired bend angle:
Subtract the desired bend angle from the actual bend angle. The difference is the amount that must be subtracted from the desired bend angle for all subsequent bends made with this tube. For example: The desired bend angle entered is 90°.
The resulting calibration sample measures 92°. 92 – 90 = 2. The bend angle thumb wheels must be set 2° less than the desired bend angle for subsequent bends with this size tube, i.e. for a 90° bend, the bend angle thumb wheels must be set at 88°.
8. Make note of this amount.
Note: Tube springback is cumulative. Depending on the tube
variables, a smaller bend angle builds up less tube springback during the bending process than a larger bend angle. For example, if a 30° bend is attempted using a bender that was calibrated to make a 90° bend, the resulting bend may be larger than desired. Conversely, if a 150° bend is attempted on the same bender, the resulting bend may be smaller than desired. It is advised to verify each bend angle.
Unloading the Bender
Note: Do not turn the roller knob to unload the bender.
Doing so will affect bend consistency.
1. Hold the toggle switch in the unload position until the motor stops. While holding the toggle switch, gently turn the roller bracket lever counter-clockwise until the rollers swing away from the tube.
Bench Top Bender User’s Manual 15
Note: Do not force the roller bracket lever.
Roller bracket lever
Tog g l e switch
2. Hold the tube until the motor stops and the tube can be removed from the bender.
Operation
Before operating the bender mark the tube (see Bend Layout) and follow the Setup and Calibration procedures.
CAUTION - PINCH POINTS
1. Set the bend angle thumb wheels to the value noted in step 12 of Setup.
Bend angle thumb wheels
5. Align the bend mark on the tube with the reference mark on the bend shoe (see Bend Layout for marking tube).
Reference mark
Bend mark
6. Rotate the roller bracket lever clockwise until the roller bracket assembly stop and the bracket post stop make contact.
Roller
Bracket
post stop
bracket assembly stop
Example only
2. Hold the toggle switch in the bend direction until the motor stops (do not jog the switch).
3. Set the bend angle thumb wheels to the desired bend angle plus or minus the amount noted in step 8 of Calibration.
Bend angle thumb wheels
Example only
4. Carefully insert the tube into the bend shoe, past the clamp arm.
Caution
The end of the tube must extend past the right edge of the tube clamp support area to prevent potential damage to the tube during bending.
Tub e
Bend
shoe
Contact
Note: The clearance between the D roller and the clamp
arm will now be approximately 1/4 in.
7. Check the following before continuing:
■ The bend mark remains aligned with the reference mark on the bend shoe.
■ The tube is positioned in the correct plane.
■ The tube will not contact the bender housing during
the bend operation (for a multiple bend).
Undesired tube contact
8. Hold the tube and push the toggle switch in the bend
direction until the motor stops (do not jog the switch).
9. Unload the tube. See Unloading the Bender.
10. Verify the bend angle (see Measuring the Bend Angle).
Clamp arm
Right edge
16 Bench Top Bender User’s Manual
Measuring the Bend Angle
This is one of many methods that may be used to measure the bend angle.
A protractor will be needed for this method.
1. Place the bent tube on a piece of paper with the vertex of the bend on the paper.
Tub e
Ver tex
2. Hold the tube against the paper, and mark the paper along one edge of each leg of the bend with a pencil.
3. Align a ruler or other straight edge on one of the marks, and extend it past the point where it will intersect with the second mark when it is extended.
4. Repeat step 3 with the second mark. The intersection point of the two marks represents the vertex of the bend.
5. Place the origin of the protractor on the intersection of the line. Rotate the protractor so the baseline of the protractor is aligned with one of the marks and the second mark intersects the scale on the protractor (extend the marks with a pencil if necessary).
Origin
6. The second mark indicates the bend angle.
Note: The protractor will contain two scales. Read the
appropriate scale.
Bench Top Bender User’s Manual 17
Bend Data Tables
The bend data provided reects results achieved using the Swagelok bench top tube bender.
Bend deduction – the distance from the vertex of the angle back to the point where the tube breaks tangent and the bend
actually begins. Sometimes referred to as ‘setback’, ‘take-up’ or ‘take-off’.
Bend length – the actual amount of tube consumed by the bend as measured along the centerline of the bend.
Adjustment (gain) – the difference between the actual length of tube used in a bend and the theoretical distance around a
sharp corner. The information provided in these tables accounts for adjustment (gain).
Bend allowance – the bend mark distance for reverse bends. The adjustment (gain) is pushed towards the reference mark or
previous bend during reverse bends.
Fractional Tubing
Dimensions are in inches.
1/4 in. OD, 36 mm (1.42 in.) Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing Medium–Pressure Tubing
Bend
Angle
Degrees
15 1/16 1/16 1/8 5/16 5/16 5/8 3/8 3/8 3/4
22 1/2 1/8 3/16 5/16 3/8 7/16 13/16 7/16 1/2 15/16
30 3/16 1/4 1/2 7/16 1/2 1 9/16 9/16 1 1/8
45 3/8 7/16 13/16 5/8 11/16 1 5/16 11/16 3/4 1 1/2
60 1/2 11/16 1 3/16 3/4 15/16 1 11/16 13/16 1 1 13/16
75 9/16 15/16 1 9/16 13/16 1 3/16 2 1/16 15/16 1 1/4 2 3/16
90 5/8 1 5/16 1 15/16 7/8 1 9/16 2 7/16 15/16 1 5/8 2 9/16
105 9/16 1 11/16 2 1/4 13/16 2 2 3/4 7/8 2 1/16 2 15/16
120 3/8 2 5/16 2 5/8 1/2 2 5/8 3 1/8 5/8 2 11/16 3 5/16
135 –1/4 3 1/4 3 –1/8 3 5/8 3 1/2 –1/16 3 11/16 3 11/16
150 –1 3/4 5 1/16 3 3/8 –1 5/8 5 1/2 3 7/8 –1 9/16 5 5/8 4 1/16
165 –6 13/16 10 9/16 3 3/4 –6 13/16 11 4 1/4 –6 3/4 11 1/8 4 7/16
180 2 13/16 1 5/16 4 1/16 3 1/16 1 9/16 4 9/16 3 3/16 1 5/8 4 3/4
Allowance
Aluminum Bend Shoe Steel Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
1/4 in. OD, IPT Series, 36 mm (1.42 in.) Radius Bend Shoe with Effective Bend Radius of 1.59 in.
Medium- and High-Pressure Tubing
Bend
Angle
Degrees
15 5/16 5/16 11/16
22 1/2 7/16 7/16 7/8
30 9/16 9/16 1 1/16
45 11/16 13/16 1 1/2
60 7/8 1 1/16 1 15/16
75 1 1 3/8 2 5/16
90 1 1/16 1 3/4 2 3/4
105 15/16 2 1/4 3 3/16
120 11/16 2 15/16 3 9/16
135 0 4 1/16 4
150 -1 3/4 6 3/16 4 7/16
165 -7 1/2 12 5/16 4 13/16
180 3 9/16 1 3/4 5 1/4
Bend
Allowance
IPT Series
Steel Bend Shoe
Bend
Deduction
Bend
Length
18 Bench Top Bender User’s Manual
Fractional Tubing continued
Dimensions are in inches.
3/8 in. OD, 36 mm (1.42 in.) Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing Medium-Pressure Tubing
Bend
Angle
Degrees
15 –1/16 –1/16 –1/16 1/16 1/16 1/8 5/16 5/16 5/8
22 1/2 0 1/16 1/8 1/8 3/16 5/16 3/8 7/16 13/16
30 1/8 1/8 5/16 1/4 1/4 1/2 7/16 1/2 15/16
45 1/4 5/16 11/16 3/8 7/16 7/8 5/8 11/16 1 5/16
60 7/16 9/16 1 1/2 11/16 1 3/16 3/4 15/16 1 11/16
75 1/2 13/16 1 3/8 5/8 15/16 1 9/16 13/16 1 3/16 2
90 9/16 1 3/16 1 3/4 5/8 1 5/16 1 15/16 13/16 1 9/16 2 3/8
105 9/16 1 9/16 2 1/8 5/8 1 11/16 2 5/16 3/4 2 2 3/4
120 3/8 2 1/8 2 1/2 3/8 2 5/16 2 11/16 1/2 2 5/8 3 1/8
135 –3/16 3 1/16 2 7/8 –3/16 3 1/4 3 1/16 –3/16 3 5/8 3 7/16
150 –1 11/16 4 7/8 3 1/4 –1 11/16 5 1/16 3 7/16 –1 11/16 5 1/2 3 13/16
165 –6 3/4 10 5/16 3 5/8 –6 3/4 10 9/16 3 13/16 –6 7/8 11 4 3/16
180 2 13/16 1 3/16 3 15/16 2 7/8 1 5/16 4 1/8 3 1 9/16 4 1/2
Allowance
Aluminum Bend Shoe Steel Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
3/8 in. OD, 56 mm (2.20 in.) Radius Bend Shoe
Carbon Steel and Stainless Steel
Bend
Angle
Degrees
15 5/16 5/16 11/16
22 1/2 7/16 1/2 15/16
30 5/8 5/8 1 1/4
45 7/8 1 1 7/8
60 1 1/16 1 3/8 2 7/16
75 1 1/4 1 13/16 3 1/16
90 1 5/16 2 3/8 3 5/8
105 1 3/16 3 1/16 4 1/4
120 3/4 4 1/16 4 13/16
135 -3/16 5 5/8 5 7/16
150 -2 11/16 8 11/16 6
165 -11 17 5/8 6 5/8
180 4 7/8 2 3/8 7 3/16
Bend
Allowance
Tubing
Steel Bend Shoe
Bend
Deduction
Bend
Length
3/8 in. OD, IPT Series, 56 mm (2.20 in.) Radius Bend Shoe with Effective Bend Radius of 2.44 in.
Medium- and High-Pressure Tubing
Bend
Angle
Degrees
15 7/16 7/16 13/16
22 1/2 9/16 9/16 1 1/8
30 11/16 3/4 1 7/16
45 1 1 1/8 2 1/8
60 1 1/4 1 1/2 2 3/4
75 1 3/8 1 15/16 3 3/8
90 1 1/2 2 9/16 4
105 1 3/8 3 5/16 4 5/8
120 15/16 4 3/8 5 1/4
135 -1/8 6 5 15/16
150 -2 11/16 9 1/4 6 9/16
165 -11 1/2 18 11/16 7 3/16
180 5 5/16 2 9/16 7 13/16
Bend
Allowance
IPT Series
Steel Bend Shoe
Bend
Deduction
Bend
Length
Bench Top Bender User’s Manual 19
Fractional Tubing continued
Dimensions are in inches.
1/2 in. OD, 36 mm (1.42 in.) Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing Medium-Pressure Tubing
Bend
Angle
Degrees
15 –1/16 –1/16 –1/8 1/8 1/8 1/4 1/16 1/16 3/16
22 1/2 0 1/16 1/16 3/16 1/4 7/16 3/16 3/16 3/8
30 1/16 1/8 3/16 1/4 5/16 9/16 1/4 5/16 9/16
45 1/4 5/16 9/16 7/16 1/2 15/16 3/8 1/2 7/8
60 3/8 9/16 15/16 9/16 3/4 1 5/16 9/16 3/4 1 1/4
75 7/16 13/16 1 1/4 5/8 1 1 5/8 5/8 1 1 5/8
90 7/16 1 3/16 1 5/8 5/8 1 3/8 2 5/8 1 5/16 2
105 7/16 1 9/16 2 9/16 1 3/4 2 3/8 5/8 1 3/4 2 5/16
120 1/4 2 1/8 2 3/8 3/8 2 3/8 2 3/4 3/8 2 5/16 2 11/16
135 –3/8 3 1/16 2 11/16 –1/4 3 5/16 3 1/16 –1/4 3 5/16 3 1/16
150 –1 13/16 4 7/8 3 1/16 –1 3/4 5 3/16 3 7/16 –1 11/16 5 1/8 3 7/16
165 –6 15/16 10 5/16 3 7/16 –6 7/8 10 11/16 3 13/16 –6 13/16 10 5/8 3 13/16
180 2 5/8 1 3/16 3 3/4 2 13/16 1 3/8 4 1/8 2 13/16 1 5/16 4 1/8
Allowance
Aluminum Bend Shoe Steel Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
1/2 in. OD, 56 mm (2.20 in.) Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 5/8 5/8 1 1/4
22 1/2 3/4 13/16 1 1/2
30 7/8 15/16 1 13/16
45 1 1/8 1 1/4 2 3/8
60 1 5/16 1 5/8 2 15/16
75 1 7/16 2 1/16 3 1/2
90 1 1/2 2 9/16 4 1/16
105 1 5/16 3 1/4 4 5/8
120 7/8 4 1/4 5 3/16
135 –1/8 5 13/16 5 3/4
150 –2 1/2 8 13/16 6 5/16
165 –10 1/2 17 5/16 6 7/8
180 4 7/8 2 9/16 7 7/16
Bend
Allowance
Steel Bend Shoe
Bend
Deduction
Bend
Length
20 Bench Top Bender User’s Manual
Fractional Tubing continued
Dimensions are in inches.
9/16 in. OD, IPT Series, 82 mm (3.23 in.) Radius Bend Shoe with Effective Bend Radius of 3.47 in.
Medium- and High-Pressure Tubing
Bend
Angle
Degrees
15 7/16 7/16 7/8
22 1/2 11/16 11/16 1 3/8
30 7/8 15/16 1 13/16
45 1 1/4 1 7/16 2 11/16
60 1 5/8 2 3 5/8
75 1 7/8 2 11/16 4 1/2
90 1 15/16 3 1/2 5 7/16
105 1 13/16 4 1/2 6 5/16
120 1 3/16 6 7 1/4
135 -1/4 8 3/8 8 1/8
150 -3 15/16 12 15/16 9
165 -16 7/16 26 3/8 9 15/16
180 7 3/8 3 1/2 10 13/16
Bend
Allowance
IPT Series
Steel Bend Shoe
Bend
Deduction
Bend
Length
Fractional Tubing continued
Dimensions are in inches.
5/8 in. OD, 46 mm (1.81 in.) Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 3/16 3/16 3/8 3/8 3/8 3/4
22 1/2 5/16 5/16 5/8 1/2 1/2 1
30 3/8 7/16 7/8 9/16 5/8 1 3/16
45 9/16 11/16 1 5/16 3/4 7/8 1 11/16
60 3/4 1 1 3/4 15/16 1 3/16 2 1/8
75 7/8 1 3/8 2 1/4 1 1/16 1 9/16 2 9/16
90 15/16 1 3/4 2 11/16 1 1/16 1 15/16 3
105 13/16 2 5/16 3 1/8 15/16 2 9/16 3 1/2
120 1/2 3 1/16 3 5/8 9/16 3 5/16 3 15/16
135 –1/4 4 5/16 4 1/16 –3/16 4 5/8 4 3/8
150 –2 3/16 6 11/16 4 1/2 –2 3/16 7 4 13/16
165 –8 11/16 13 11/16 5 –8 3/4 14 1/16 5 5/16
180 3 11/16 1 3/4 5 7/16 3 13/16 1 15/16 5 3/4
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bench Top Bender User’s Manual 21
Bend
Length
3/4 in. OD, 56 mm (2.20 in.) Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 3/8 3/8 3/4 1/2 9/16 1 1/16
22 1/2 1/2 9/16 1 5/8 11/16 1 5/16
30 5/8 11/16 1 5/16 3/4 13/16 1 5/8
45 7/8 1 1 7/8 1 1 3/16 2 3/16
60 1 1/16 1 3/8 2 7/16 1 1/4 1 1/2 2 3/4
75 1 3/16 1 13/16 2 15/16 1 3/8 1 15/16 3 5/16
90 1 1/4 2 5/16 3 1/2 1 7/16 2 7/16 3 7/8
105 1 1/8 3 4 1/16 1 1/4 3 3/16 4 7/16
120 11/16 3 15/16 4 5/8 13/16 4 1/8 5
135 –1/4 5 7/16 5 3/16 –1/8 5 11/16 5 9/16
150 –2 5/8 8 3/8 5 3/4 –2 1/2 8 5/8 6 1/8
165 –10 9/16 16 7/8 6 5/16 –10 1/2 17 3/16 6 11/16
180 4 9/16 2 5/16 6 7/8 4 3/4 2 7/16 7 1/4
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
22 Bench Top Bender User’s Manual
Fractional Tubing continued
Dimensions are in inches.
7/8 in. OD, 67 mm (2.64 in.) Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 1/4 1/4 1/2 0 0 0
22 1/2 3/8 7/16 13/16 1/8 3/16 5/16
30 9/16 5/8 1 3/16 5/16 3/8 11/16
45 7/8 1 1 7/8 9/16 3/4 1 5/16
60 1 1/8 1 7/16 2 9/16 13/16 1 3/16 2
75 1 5/16 1 15/16 3 3/16 1 1 11/16 2 11/16
90 1 3/8 2 9/16 3 7/8 1 1/16 2 5/16 3 3/8
105 1 1/4 3 5/16 4 9/16 1 3 1/16 4 1/16
120 13/16 4 7/16 5 1/4 5/8 4 1/8 4 11/16
135 –5/16 6 1/4 5 15/16 –7/16 5 7/8 5 3/8
150 –3 1/16 9 11/16 6 5/8 –3 3/16 9 1/4 6 1/16
165 –12 9/16 19 7/8 7 5/16 –12 11/16 19 7/16 6 3/4
180 5 7/16 2 9/16 8 5 1/8 2 5/16 7 7/16
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
1 in. OD, 82 mm (3.23 in.) Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 15/16 15/16 1 13/16 1/2 1/2 15/16
22 1/2 1 1/8 1 1/8 2 1/4 11/16 11/16 1 3/8
30 1 5/16 1 3/8 2 11/16 7/8 15/16 1 13/16
45 1 11/16 1 13/16 3 1/2 1 1/4 1 3/8 2 5/8
60 2 2 3/8 4 3/8 1 9/16 1 15/16 3 7/16
75 2 1/4 3 5 1/4 1 3/4 2 9/16 4 5/16
90 2 5/16 3 3/4 6 1/16 1 13/16 3 5/16 5 1/8
105 2 1/8 4 13/16 6 15/16 1 11/16 4 5/16 6
120 1 1/2 6 1/4 7 3/4 1 1/8 5 11/16 6 13/16
135 1/16 8 9/16 8 5/8 –1/4 7 7/8 7 5/8
150 –3 7/16 12 7/8 9 7/16 –3 11/16 12 3/16 8 1/2
165 –15 1/8 25 7/16 10 5/16 –15 5/16 24 5/8 9 5/16
180 7 7/16 3 3/4 11 1/8 6 7/8 3 5/16 10 1/8
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
Fractional Tubing continued
Dimensions are in inches.
1 1/4 in. OD, 112 mm (4.41 in.) Radius Bend Shoe
Standard Tubing
Bend
Angle
Degrees
15 13/16 7/8 1 11/16
22 1/2 1 1/16 1 3/16 2 3/16
30 1 5/16 1 7/16 2 3/4
45 1 3/4 2 1/8 3 7/8
60 2 1/8 2 13/16 5
75 2 7/16 3 11/16 6 1/16
90 2 1/2 4 11/16 7 3/16
105 2 3/16 6 1/16 8 1/4
120 1 3/8 8 9 3/8
135 –9/16 11 1/16 10 1/2
150 –5 5/16 16 15/16 11 9/16
165 –21 5/16 34 12 11/16
180 9 1/8 4 11/16 13 13/16
Carbon Steel and Stainless Steel Tubing
Bend
Allowance
Bend
Deduction
Bend
Length
Bench Top Bender User’s Manual 23
24 Bench Top Bender User’s Manual
Metric Tubing
Dimensions are in millimeters.
6 mm OD, 36 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 –1 0 –1 8 9 17
22 1/2 1 2 4 10 11 22
30 4 5 8 13 14 26
45 7 10 17 16 19 35
60 11 16 26 20 25 44
75 13 23 35 22 32 53
90 14 31 45 23 40 63
105 13 41 54 20 52 72
120 7 56 63 13 68 81
135 –8 79 72 –3 93 90
150 –45 126 81 –42 141 99
165 –174 264 90 –173 281 108
180 68 31 99 77 40 117
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
10 mm OD, 36 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 –1 0 –1 4 5 9
22 1/2 1 2 4 6 7 13
30 4 5 8 8 10 18
45 7 10 17 11 15 26
60 11 16 26 14 21 35
75 13 23 35 16 28 44
90 14 31 45 17 36 53
105 13 41 54 14 47 61
120 7 56 63 8 62 70
135 –8 79 72 –8 87 79
150 –45 126 81 –47 134 88
165 –174 264 90 –177 273 96
180 68 31 99 69 36 105
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
Metric Tubing continued
Dimensions are in millimeters.
12 mm OD, 36 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 -3 -2 -5 1 2 3
22 1/2 -1 0 0 3 4 8
30 2 3 4 5 7 12
45 5 8 13 9 12 21
60 9 14 22 12 18 30
75 11 21 31 14 25 39
90 12 29 41 15 33 48
105 11 39 50 14 43 57
120 6 53 59 8 58 66
135 -9 76 68 -7 82 75
150 -46 123 77 -45 129 84
165 -175 261 86 -175 268 93
180 66 29 95 69 33 102
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bench Top Bender User’s Manual 25
Bend
Length
14 mm OD, 46 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 5 6 11 8 9 17
22 1/2 8 9 17 11 12 23
30 11 12 23 13 15 29
45 16 19 35 18 22 40
60 20 26 47 22 30 52
75 24 35 58 25 38 63
90 25 46 70 25 49 74
105 23 59 82 22 63 86
120 15 79 94 13 84 97
135 –4 110 106 –7 116 108
150 –53 171 118 –57 177 120
165 –219 348 130 –224 355 131
180 96 46 142 94 49 143
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
26 Bench Top Bender User’s Manual
Metric Tubing continued
Dimensions are in millimeters.
15 mm OD, 46 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 4 5 9 8 9 17
22 1/2 7 8 15 11 12 23
30 10 11 21 14 15 29
45 15 18 32 19 22 41
60 19 25 44 23 29 53
75 22 34 56 27 38 64
90 23 45 68 28 49 76
105 21 58 80 25 63 88
120 14 78 91 17 83 100
135 –6 109 103 –3 115 112
150 –54 169 115 –52 176 124
165 –220 347 127 –218 354 136
180 94 45 139 99 49 148
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
16 mm OD, 46 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 5 6 11 6 6 12
22 1/2 8 9 16 8 9 18
30 10 12 22 11 12 23
45 15 19 34 16 19 35
60 19 26 46 20 27 47
75 22 35 57 23 35 59
90 23 46 69 24 46 70
105 21 59 80 22 60 82
120 13 79 92 14 80 94
135 –7 110 104 –6 111 105
150 –56 171 115 –55 172 117
165 –222 348 127 –221 349 129
180 93 46 139 95 46 141
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
Metric Tubing continued
Dimensions are in millimeters.
18 mm OD, 56 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 8 8 16 14 14 28
22 1/2 11 12 23 17 18 35
30 14 16 30 20 22 42
45 20 24 44 27 30 57
60 25 33 58 32 39 71
75 28 44 72 35 50 85
90 29 57 86 36 63 99
105 26 74 101 33 81 114
120 16 98 115 22 106 128
135 –8 137 129 –3 146 142
150 –68 211 143 –64 221 156
165 –270 427 157 –268 438 171
180 114 57 171 122 63 185
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bench Top Bender User’s Manual 27
Bend
Length
20 mm OD, 67 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 3 4 7 1 2 3
22 1/2 7 8 15 5 6 12
30 11 13 24 9 11 20
45 18 23 41 17 21 38
60 24 34 57 23 32 55
75 28 46 74 28 44 72
90 29 62 91 29 60 89
105 27 81 108 27 79 106
120 16 109 125 17 107 124
135 –12 154 142 –10 151 141
150 –83 242 159 –80 238 158
165 –324 500 176 –321 496 175
180 130 62 192 132 60 192
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
28 Bench Top Bender User’s Manual
Metric Tubing continued
Dimensions are in millimeters.
22 mm OD, 67 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 9 10 19 7 7 14
22 1/2 13 14 27 11 12 23
30 17 19 36 15 16 31
45 24 29 53 22 26 49
60 30 40 69 29 37 66
75 34 52 86 33 50 83
90 35 68 103 35 66 100
105 32 88 120 32 86 117
120 20 117 137 21 114 135
135 –9 163 154 –8 160 152
150 –81 252 171 –78 248 169
165 –323 511 188 –320 506 186
180 136 68 204 138 66 203
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
25 mm OD, 82 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 24 25 49 12 13 24
22 1/2 29 30 60 16 18 35
30 34 36 70 21 24 45
45 43 48 91 29 36 65
60 51 61 113 37 49 86
75 57 77 134 41 65 106
90 59 96 155 43 84 127
105 53 123 176 38 109 147
120 36 161 197 23 145 168
135 –1 219 218 –13 201 188
150 –90 329 239 –101 309 209
165 –388 649 260 –397 627 229
180 186 96 282 166 84 250
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
Metric Tubing continued
Dimensions are in millimeters.
28 mm OD, 112 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 11 12 23
22 1/2 18 20 37
30 24 28 51
45 36 44 80
60 46 62 108
75 53 83 136
90 55 110 164
105 50 143 193
120 30 191 221
135 –17 267 249
150 –136 414 277
165 –541 846 306
180 224 110 334
Bend
Allowance
Steel Bend Shoe
Bend
Deduction
Bench Top Bender User’s Manual 29
Bend
Length
30 mm OD, 112 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 9 10 18
22 1/2 15 17 32
30 22 25 47
45 34 41 75
60 44 60 103
75 51 81 132
90 53 107 160
105 48 140 188
120 29 187 217
135 –18 263 245
150 –136 410 273
165 –540 842 302
180 223 107 330
Bend
Allowance
Steel Bend Shoe
Bend
Deduction
Bend
Length
30 Bench Top Bender User’s Manual
Fractional Tubing with Metric Dimensions
Tube OD is in inches. Bend radius, bend shoe, and bend dimensions are in millimeters.
1/4 in. OD, 36 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing Medium-Pressure Tubing
Bend
Angle
Degrees
15 1 2 3 8 8 16 9 10 19
22 1/2 3 4 7 10 10 20 12 12 24
30 5 6 12 12 13 25 14 14 28
45 9 12 21 16 18 34 18 20 38
60 13 18 30 19 24 43 21 26 47
75 15 25 40 21 31 52 24 33 56
90 16 33 49 22 39 62 25 41 66
105 15 43 58 20 51 71 22 53 75
120 9 58 67 13 67 80 15 69 84
135 –6 82 76 –3 92 89 –1 94 93
150 –44 129 85 –42 140 98 –40 143 103
165 –174 268 95 –173 280 107 –171 283 112
180 71 33 104 77 39 117 81 41 121
Allowance
Aluminum Bend Shoe Steel Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
1/4 in. OD, IPT Series, 36 mm Radius Bend Shoe with Effective Bend Radius of 40 mm
Medium- and High-Pressure Tubing
Bend
Angle
Degrees
15 8 8 17
22 1/2 11 11 22
30 13 14 27
45 18 20 38
60 22 26 48
75 25 34 59
90 26 43 69
105 24 56 80
120 17 74 90
135 -1 101 101
150 -43 155 111
165 -188 310 122
180 89 43 132
Bend
Allowance
IPT Series
Steel Bend Shoe
Bend
Deduction
Bend
Length
Bench Top Bender User’s Manual 31
Fractional Tubing with Metric Dimensions
Tube OD is in inches. Bend radius, bend shoe, and bend dimensions are in millimeters.
3/8 in. OD, 36 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing Medium-Pressure Tubing
Bend
Angle
Degrees
15 –1 –1 –2 1 2 3 7 8 15
22 1/2 1 2 3 4 4 8 10 10 20
30 3 4 7 6 6 12 12 13 25
45 7 9 17 10 12 22 15 18 34
60 11 15 26 13 18 31 19 24 43
75 13 22 35 16 25 40 21 31 52
90 14 31 45 17 33 50 21 39 61
105 14 41 54 16 43 59 19 51 70
120 8 55 63 10 58 68 12 67 79
135 –6 79 73 –5 82 77 –4 92 88
150 –43 125 82 –43 129 87 –43 140 97
165 –173 264 91 –172 268 96 –174 280 106
180 70 31 101 73 33 105 76 39 115
Allowance
Aluminum Bend Shoe Steel Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
3/8 in. OD, 56 mm Radius Bend Shoe
Carbon Steel and Stainless Steel
Bend
Angle
Degrees
15 8 9 17
22 1/2 12 13 24
30 15 17 32
45 22 25 47
60 27 35 62
75 31 46 77
90 33 60 93
105 30 78 108
120 20 103 123
135 -5 144 138
150 -68 222 153
165 -281 450 169
180 124 60 184
Bend
Allowance
Tubing
Steel Bend Shoe
Bend
Deduction
Bend
Length
3/8 in. OD, IPT Series, 56 mm Radius Bend Shoe with Effective Bend Radius of 62 mm
Medium- and High-Pressure Tubing
Bend
Angle
Degrees
15 10 11 21
22 1/2 14 15 29
30 18 19 37
45 25 28 53
60 31 38 69
75 36 50 86
90 37 64 102
105 34 84 118
120 24 111 134
135 -3 153 150
150 -69 235 166
165 -293 475 183
180 134 64 199
Bend
Allowance
IPT Series
Steel Bend Shoe
Bend
Deduction
Bend
Length
32 Bench Top Bender User’s Manual
Fractional Tubing with Metric Dimensions continued
Tube OD is in inches. Bend radius, bend shoe, and bend dimensions are in millimeters.
1/2 in. OD, 36 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing Medium-Pressure Tubing
Bend
Angle
Degrees
15 –2 –2 –4 3 3 6 2 2 4
22 1/2 0 1 1 5 6 10 4 5 9
30 2 3 5 7 8 15 6 7 14
45 6 9 14 11 13 24 10 13 23
60 9 14 23 14 19 33 13 18 32
75 11 21 32 16 26 42 16 25 41
90 12 30 42 17 35 51 17 34 50
105 11 40 51 15 45 60 15 44 59
120 6 54 60 9 60 69 9 59 69
135 –9 78 69 –6 85 78 –6 84 78
150 –46 124 78 –45 132 87 –44 131 87
165 –176 262 87 –175 271 96 –174 270 96
180 66 30 96 71 35 105 72 34 105
Allowance
Aluminum Bend Shoe Steel Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
1/2 in. OD, 56 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 16 16 32
22 1/2 19 20 39
30 22 24 46
45 28 32 60
60 33 41 74
75 37 52 89
90 38 65 103
105 34 83 117
120 23 109 131
135 –2 148 146
150 –63 223 160
165 –267 441 174
180 124 65 189
Allowance
Bend
Steel Bend Shoe
Bend
Deduction
Bend
Length
Bench Top Bender User’s Manual 33
Fractional Tubing with Metric Dimensions continued
Tube OD is in inches. Bend radius, bend shoe, and bend dimensions are in millimeters.
9/16 in. OD, IPT Series, 82 mm. Radius Bend Shoe with Effective Bend Radius of 88 mm
Medium- and High-Pressure Tubing
Bend
Angle
Degrees
15 11 12 23
22 1/2 17 18 34
30 22 24 46
45 32 36 69
60 41 51 92
75 47 68 115
90 49 88 137
105 46 115 160
120 31 152 183
135 -6 212 206
150 -99 328 229
165 -416 668 252
180 187 88 275
Bend
Allowance
IPT Series
Steel Bend Shoe
Bend
Deduction
Bend
Length
34 Bench Top Bender User’s Manual
Fractional Tubing with Metric Dimensions continued
Tube OD is in inches. Bend radius, bend shoe, and bend dimensions are in millimeters.
5/8 in. OD, 46 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 6 6 10 9 10 20
22 1/2 8 8 16 12 13 25
30 10 12 22 15 16 31
45 15 18 33 19 23 43
60 19 26 45 23 31 54
75 22 34 57 26 39 66
90 23 45 68 27 50 77
105 21 59 80 24 65 89
120 13 79 92 15 85 100
135 –7 110 103 –5 117 112
150 –56 170 115 –55 178 123
165 –221 348 126 –222 357 135
180 93 45 138 96 50 146
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
3/4 in. OD, 56 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 9 10 19 13 14 27
22 1/2 12 14 26 17 18 34
30 16 17 33 20 21 41
45 22 26 47 26 30 56
60 27 35 61 31 39 70
75 30 45 75 35 49 84
90 31 58 89 36 62 98
105 28 76 104 32 80 112
120 18 100 118 21 105 127
135 –7 139 132 –4 145 141
150 –67 213 146 –64 219 155
165 –269 429 160 –267 436 169
180 116 58 174 121 62 184
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
Fractional Tubing with Metric Dimensions continued
Tube OD is in inches. Bend radius, bend shoe, and bend dimensions are in millimeters.
7/8 in. OD, 67 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 6 6 12 0 0 0
22 1/2 10 11 21 4 5 8
30 14 16 30 8 9 17
45 22 25 47 15 19 34
60 28 36 64 21 30 51
75 33 49 82 26 43 68
90 34 65 99 27 58 86
105 32 85 116 25 77 103
120 21 113 134 15 105 120
135 –7 158 151 –12 149 137
150 –78 246 168 –82 236 154
165 –320 505 186 –322 494 171
180 138 65 203 130 58 189
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
Bench Top Bender User’s Manual 35
1 in. OD, 82 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 23 23 47 12 12 24
22 1/2 28 29 57 17 18 35
30 34 35 68 22 24 46
45 43 47 90 31 36 67
60 51 60 111 39 49 88
75 57 76 133 45 65 109
90 59 95 154 47 84 130
105 54 122 175 43 109 152
120 38 159 197 29 144 173
135 2 217 218 –6 200 194
150 –87 327 240 –93 309 215
165 –385 646 261 –389 626 236
180 188 95 283 174 84 258
Allowance
Aluminum Bend Shoe Steel Bend Shoe
Bend
Bend
Deduction
Bend
Length
Bend
Allowance
Deduction
Bend
Bend
Length
36 Bench Top Bender User’s Manual
Fractional Tubing with Metric Dimensions continued
Tube OD is in inches. Bend radius, bend shoe, and bend dimensions are in millimeters.
1 1/4 in. OD, 112 mm Radius Bend Shoe
Carbon Steel and Stainless Steel Tubing
Bend
Angle
Degrees
15 20 22 42
22 1/2 27 29 56
30 33 37 70
45 45 53 98
60 54 72 126
75 61 93 154
90 63 119 182
105 56 154 210
120 35 203 238
135 –15 281 266
150 –136 430 294
165 –154 864 322
180 231 119 350
Allowance
Bend
Steel Bend Shoe
Bend
Deduction
Bend
Length
Minimum Length of Last Leg
During bending, both rollers must remain on the tube until the desired bend angle is achieved. If the length of tube is too short, the bend may not reach its desired angle or the end of the tube may be damaged.
Specifying a nal leg length equal to or greater than the minimum length of last leg length in the following tables will ensure a sufcient amount of tube exists to allow the nal bend to be made correctly.
Minimum Length of Last Leg Tables
Fractional Tubing
Dimensions are in inches.
Aluminum Bend Shoe
Tube OD 1/4 3/8 1/2 5/8 3/4 7/8 1
Bend Radius 1.42 1.42 1.42 1.81 2.20 2.64 3.23
2 9/16 2 1/2 2 11/16 3 1/2 4 1/4 3 11/16 4 11/16
2 11/16 2 5/8 2 13/16 3 5/8 4 7/16 3 7/8 4 7/8
2 3/4 2 3/4 2 7/8 3 3/4 4 9/16 4 1/16 5 1/8
2 15/16 2 15/16 3 1/16 4 4 7/8 4 7/16 5 9/16
3 3/16 3 3/16 3 5/16 4 5/16 5 1/4 4 7/8 6 1/8
3 7/16 3 7/16 3 9/16 4 11/16 5 11/16 5 3/8 6 3/4
3 13/16 3 3/4 3 15/16 5 1/16 6 3/16 6 7 1/2
4 3/16 4 3/16 4 5/16 5 5/8 6 7/8 6 3/4 8 9/16
4 13/16 4 3/4 4 7/8 6 3/8 7 13/16 7 7/8 10
5 3/4 5 11/16 5 13/16 7 5/8 9 5/16 9 11/16 12 5/16
7 9/16 7 1/2 7 5/8 10 12 1/4 13 1/8 16 5/8
13 1/16 12 15/16 13 1/16 17 20 3/4 23 5/16 29 3/16
3 13/16 3 3/4 3 15/16 5 1/16 6 3/16 6 7 1/2
Bend Angle, Degrees
15
22 1/2
30
45
60
75
90
105
120
135
150
165
180
Bench Top Bender User’s Manual 37
Steel Bend Shoe
1/4
Tube OD 1/4
Bend Radius 1.42 1.42 1.42 1.42 1.42 2.20 2.20 1.42 1.42 2.20
3 7/16 3 1/2 3 7/16 3 5/8 3 1/2 4 1/8 4 3 3/8 3 5/16 4 1/4
3 9/16 3 5/8 3 9/16 3 3/4 3 5/8 4 5/16 4 1/8 3 1/2 3 7/16 4 7/16
3 5/8 3 11/16 3 11/16 3 13/16 3 11/16 4 7/16 4 5/16 3 9/16 3 9/16 4 9/16
3 13/16 3 7/8 3 15/16 4 3 7/8 4 13/16 4 11/16 3 3/4 3 3/4 4 7/8
4 1/16 4 1/8 4 3/16 4 1/4 4 1/8 5 3/16 5 1/16 4 4 5 1/4
4 5/16 4 3/8 4 1/2 4 1/2 4 3/8 5 5/8 5 1/2 4 1/4 4 1/4 5 11/16
4 11/16 4 3/4 4 7/8 4 7/8 4 3/4 6 3/16 6 1/8 4 5/8 4 9/16 6 3/16
5 1/8 5 3/16 5 3/8 5 1/4 5 3/16 6 7/8 6 7/8 5 5 6 7/8
5 3/4 5 13/16 6 1/16 5 7/8 5 13/16 7 7/8 7 15/16 5 5/8 5 9/16 7 7/8
6 3/4 6 13/16 7 3/16 6 13/16 6 13/16 9 7/16 9 9/16 6 9/16 6 9/16 9 7/16
8 5/8 8 3/4 9 5/16 8 5/8 8 11/16 12 1/2 12 13/16 8 7/16 8 3/8 12 7/16
14 1/8 14 1/4 15 7/16 14 1/8 14 3/16 21 7/16 22 1/4 13 15/16 13 7/8 20 15/16
4 11/16 4 3/4 4 7/8 4 7/8 4 3/4 6 3/16 6 1/8 4 5/8 4 9/16 6 3/16
Bend Angle, Degrees
15
22 1/2
30
45
60
75
90
105
120
135
150
165
180
Medium
Pressure
1/4 IPT
Series 3/8
3/8
Medium
Pressure 3/8
3/8 IPT
Series 1/2
1/2
Medium
Pressure 1/2
38 Bench Top Bender User’s Manual
Minimum Length of Last Leg Tables
Fractional Tubing
Dimensions are in inches.
Steel Bend Shoe
15
30
45
60
75
90
105
120
135
150
165
180
9/16 IPT
Series 5/8 3/4 7/8 1 1 1/4
5 3 11/16 4 5/16 4 7/16 5 1/4 5 3/4
5 1/4 3 13/16 4 7/16 4 5/8 5 7/16 6 1/16
5 7/16 3 15/16 4 9/16 4 13/16 5 11/16 6 5/16
5 15/16 4 3/16 4 15/16 5 3/16 6 1/8 7
6 9/16 4 1/2 5 1/4 5 5/8 6 11/16 7 11/16
7 3/16 4 7/8 5 11/16 6 1/8 7 5/16 8 9/16
8 5 1/4 6 3/16 6 3/4 8 1/16 9 9/16
9 1/16 5 7/8 6 15/16 7 1/2 9 1/16 10 15/16
10 9/16 6 5/8 7 7/8 8 9/16 10 7/16 12 7/8
12 7/8 7 15/16 9 7/16 10 5/16 12 5/8 15 15/16
17 1/2 10 5/16 12 3/8 13 11/16 16 15/16 21 13/16
30 7/8 17 3/8 20 15/16 23 7/8 29 3/8 38 7/8
8 5 1/4 6 3/16 6 3/4 8 1/16 9 9/16
Tube OD
Bend Radius 3.23 1.81 2.20 2.64 3.23 4.41
22 1/2
Bend Angle, Degrees
Metric Tubing
Dimensions are in millimeters.
Aluminum Bend Shoe
Tube OD 6 10 12 14 15 16 18 20 22 25
Bend Radius 36 36 36 46 46 46 56 67 67 82
63 65 69 88 87 89 102 89 96 122
65 67 71 91 90 92 106 93 100 128
68 70 74 94 93 95 110 98 105 133
73 75 79 101 100 102 118 108 115 145
79 81 85 108 108 109 127 119 126 159
86 88 92 117 116 118 138 131 138 174
94 96 100 128 127 129 151 147 154 194
104 106 110 141 141 142 168 166 174 221
119 121 124 161 160 162 192 194 203 258
142 144 147 192 191 193 231 239 249 316
189 191 194 253 252 254 305 327 338 427
327 329 332 430 429 431 521 585 597 746
94 96 100 128 127 129 151 147 154 194
Bend Angle, Degrees
15
22 1/2
30
45
60
75
90
105
120
135
150
165
180
Steel Bend Shoe
Tube OD 6 10 12 14 15 16 18 20 22 25 28 30
Bend Radius 36 36 36 46 46 46 56 67 67 82 112 112
15
22 1/2
30
45
60
75
90
105
120
Bend Angle, Degrees
135
150
165
180
87 80 83 91 91 89 108 112 118 130 141 140
89 82 85 94 94 92 112 116 123 136 149 147
92 85 88 97 97 95 116 121 127 141 157 155
97 90 93 104 104 102 124 131 137 153 173 171
103 96 99 112 112 110 133 142 148 167 191 190
110 103 106 120 120 118 144 154 161 182 212 211
118 111 114 131 131 129 157 170 177 202 239 237
130 122 124 145 145 143 175 189 197 227 272 270
146 137 139 166 166 163 200 217 225 262 320 317
171 162 163 198 197 194 240 261 271 318 396 393
219 209 210 259 258 255 315 348 359 427 543 540
359 348 349 437 436 432 532 606 617 744 975 972
118 111 114 131 131 129 157 170 177 202 239 237
Bench Top Bender User’s Manual 39
Minimum Length of Last Leg Tables
Fractional Tubing with Metric Dimensions
Tube OD is in inches. Bend radius and length are in millimeters.
Aluminum Bend Shoe
Tube OD 1/4 3/8 1/2 5/8 3/4 7/8 1
Bend Radius 36 36 36 46 56 67 82
15
22 1/2
30
45
60
75
90
105
120
Bend Angle, Degrees
135
150
165
180
Steel Bend Shoe
Tube OD 1/4
Bend Radius 36 36 36 36 36 56 56 36 36 56
15
22 1/2
30
45
60
75
90
105
120
Bend Angle, Degrees
135
150
165
180
65 64 69 89 108 94 119
67 66 71 92 112 98 125
70 69 74 95 116 103 130
75 74 79 102 124 112 142
81 80 85 110 133 123 156
88 87 92 118 144 136 171
96 95 100 129 157 152 190
107 105 110 143 174 172 217
121 120 124 163 199 200 255
146 144 148 194 237 245 313
193 190 194 254 311 334 423
332 329 333 432 528 592 742
96 95 100 129 157 152 190
1/4
Medium
Pressure
87 89 88 92 89 105 101 85 85 108
90 91 90 95 91 109 105 88 87 112
92 94 93 97 94 113 110 90 90 116
97 99 99 103 99 122 119 96 95 124
103 105 105 108 105 132 129 102 101 133
110 112 113 115 112 143 141 108 108 144
119 120 122 124 120 157 155 117 116 157
130 132 135 134 132 175 174 128 127 175
146 148 153 149 148 200 201 143 142 201
171 174 181 173 173 240 244 167 166 241
219 222 234 220 221 318 326 214 213 316
359 362 389 359 361 546 566 354 352 534
119 120 122 124 120 157 155 117 116 157
1/4 IPT
Series 3/8
3/8
Medium
Pressure 3/8
3/8 IPT
Series 1/2
1/2
Medium
Pressure 1/2
Steel Bend Shoe
15
30
45
60
75
90
105
120
135
150
165
180
9/16 IPT
Series 5/8 3/4 7/8 1 1 1/4
127 94 109 113 133 146
133 97 113 118 139 153
139 100 117 122 144 161
152 107 125 132 156 177
166 115 134 143 170 196
183 123 145 156 185 217
203 134 158 172 204 243
230 149 176 190 229 278
268 169 201 218 265 327
328 201 240 262 321 405
444 262 315 349 429 554
784 441 532 607 746 988
203 134 158 172 204 243
Tube OD
Bend Radius 82 46 56 67 82 112
22 1/2
Bend Angle, Degrees
40 Bench Top Bender User’s Manual
Maintenance
All Models
Using the supplied grease gun, grease the two points on the upper gearbox of the bender after every 24 hours of operation.
Grease points
The grease must be a high-grade, multipurpose grease meeting Castrol® Molub-Alloy-860/220-1 ES or Tribol 4020/220-1 specications.
Electric bender motor brush replacements are available for use in the eld. Any other repairs to the electric or manual tube bender are to be made by a Swagelok authorized service center. Swagelok reserves the right not to make repairs in situations where the bender has been altered.
Electric Models
Inspect components for wear or damage periodically.
Motor Brush Inspection, Removal, and Replacement
The motor brushes should be inspected for wear after every 800 hours of operation, or every six months, and replaced when their length is 1/4 in. (6.4 mm) or less.
3. Using a at screwdriver or a similar tool, rotate the spring away from the motor brush and remove the motor brush from the housing.
Note: Complete replacement of one brush, then replace the
second brush.
Spring
Releasing motor brush
Removing motor brush
4. Inspect the brushes for wear. Replace when the length is 1/4 in. (6.4 mm) or less.
1/4 in.
WARNING
Remove unit from power source.
CAUTION
The motor brushes are under spring tension.
CAUTION
Serious damage may occur to the motor if brushes are not replaced when worn.
1. Turn the bender over. Remove the four socket-head cap screws using a 5 mm hex key.
Socket-head cap screws
2. Remove the bottom cover.
Socket-head cap screws
Motor brushes
Replace brush
New brush
5. Reverse steps 1 through 3 to install the new motor brush. Ensure that the brush spring is secured properly in the housing.
Proper brush installation
Improper brush installation
Replacement Parts
Tube Bender Components
Bench Top Bender User’s Manual 41
Description Ordering Number Qty
Metal box with trays (manual model) MS-BTB-CC-M 1
Metal box with trays (electric model) MS-BTB-CC-E 1
Roller bracket
Roller-bracket lever MS-BTB-RAH 1
Support bracket MS-BTB-B-SB 1
Hand crank (manual models only) MS-BTB-HC 1
Grease gun MS-BTB-A-GG 1
Power cord (electric models only) MS-BTB-CORD-
Motor brushes (electric models only)
Tooling kit carrying case
(aluminum bend shoes only)
➀ Does not include pin and pivot. ➁ See Tubing Tools and Accessories, MS-01-179, for country and voltage designators.
➂ O rder in quantities of 2.
➀
G pin 16685 1
D pin 16686 1
MS-BTB-RS 1
➁
16750 1
MS-BTT-CC 1
1
➂
Tooli ng Set s
Ordering Number
Description
Bend shoe set MS-BTT-B-FSET MS-BTT-B-MSET
Guide/deformation rollers set MS-BTT-R-FSET MS-BTT-R-MSET
Bend shoes and guide/deformation rollers kit MS-BTT-K-F MS-BTT-K-M
Bend shoes and guide/
deformation rollers kit with carrying case
Fractional (1/2 to 1 in.) Metric (12 to 25 mm)
MS-BTT-K-F-CASE MS-BTT-K-M-CASE
MS-BTB-M
Basic Manual
Model
MS-BTB-1 or
MS-BTB-2
Basic Electric
Model
Fractional set sizes: 1/2, 5/8, 3/4, 7/8, and 1 in.
Metric set sizes: 12, 16, 18, 20, 22, and 25 mm.
Individual Tools Ordering Information
1. Select a basic ordering number
Example: MS-BTT-B-XX
2. Replace XX with a size designator.
Example: MS-BTT-B-8
Description
G roller MS-BTT-R-XXG
D roller MS-BTT-R-XXD
Bend shoe and guide/
deformation roller set
Fractional
Size
in.
1/4 4
3/8 6
1/2 8
9/16 9
5/8 10
3/4 12
7/8 14
1 16
1 1/4 20
Designator
Size
Fractional and Metric Sizes
Basic Ordering Number
MS-BTT-K-XX (aluminum)
MS-BTT-K-SXX (steel)
Metric
Size
mm
6 6M
10 10M
12 12M
14 14M
15 15M
16 16M
18 18M
20 20M
22 22M
25 25M
28 28M
30 30M
Designator
Size
42 Bench Top Bender User’s Manual
Replacement Parts continued
Bend Shoe Ordering Information
Material
Aluminum MS-BTT-B-XX
Steel MS-BTT-B-SXX
➀ The following sizes require an additional designator be
Fractional and Metric Sizes
Basic Ordering Number
➀
➀
added to the basic ordering number:
Size Designator
6 mm -R36
10 mm -R36
14 mm -R46
15 mm -R46
3/8 in. OD, 56 mm bend radius
(steel only)
1/2 in. OD, 56 mm bend radius
(steel only)
9/16 in. OD, 82 mm bend radius
(steel only)
1 1/4 in. OD, 112 mm bend
radius (steel only)
-S6-R56
-R56
-S9-82
-R112
Example: MS-BTT-B-10M-R36
Steel bend shoes are required for bending the following:
Tube Material Tube OD
Carbon steel, stainless steel 1 in. > 0.095 in.
Carbon steel, stainless steel 1 1/4 in. All
Carbon steel, stainless steel 25 mm > 2.4 mm
Carbon steel, stainless steel 28 mm All
Carbon steel, stainless steel 30 mm All
stainless steel, alloy 2507,
1/8 hard
All All
alloy 625
Wall
Thickness
IPT series medium- and high-
pressure stainless steel
1/4, 3/8, 9/16 All
Accessories
Manual Model
Bench Top Bender User’s Manual 43
MS-BTB-A-TC
Torque Clutch:
Allows 1/2 in. electric or pneumatic drill motor to be used in place of hand crank on manual bender.
Electric Model
MS-BTB-A-FS
Foot Switch
Operates the electric bender in place of the toggle switch.
MS-BTB-A-SA
Support Arm:
Must be used with torque clutch to support drill motor.
All Models
MS-BTB-A-TP
Collapsible Tripod
Description Ordering Number
Tripod MS-BTB-A-TP
Torque clutch MS-BTB-A-TC
Support arm MS-BTB-A-SA
Foot pedal MS-BTB-A-FS
CAUTION
Torque clutch and support arm must be used together for safe operation.
Manual bender using torque clutch, support arm, and collapsible tripod with customer electric drill motor.
Achieving Quality Bends
■
Always use the correct size bend shoes and rollers for the tube you are bending.
■
Make sure the correct radius bend shoe is used for the wall thickness of the tube that you are bending. Tube with
less than the recommended wall thickness can be bent properly using a bend shoe with a larger radius.
■
The pressure between the bend shoe and the rollers must be correct. You must apply sufcient pressure to avoid
wrinkles on the inside bend of the tube, but too much will leave heavy roller forming marks on the back of the bend.
Troubleshooting
Problem Cause Solution
Wrinkles occur on inside surface
of the bend.
Forming pressure is insufficient.
Apply more pressure on the tube by
turning the roller knob clockwise, then
recalibrate.
Excessive tube deformation occurs on
back surface of the bend
Bend angle is not consistent from
bend to bend.
Tube ovality is not acceptable.
Tube kinks.
Machine fails to bend tube;
overload indicator illuminates.
(electric model only)
Machine makes excessive noise.
Bend shoe is contacting roller.
Bend shoe radius may be too small. Change to a larger-radius bend shoe.
Forming pressure is excessive.
Roller knob has been rotated
between bends.
Forming pressure is either
too high or too low.
Excessive gap between the clamp arm
and rollers.
Tube wall thickness or hardness is
beyond the capacity of the machine.
Tube wall thickness is beyond the
capacity of the machine.
Gearbox requires lubrication. Lubricate gearbox.
Bend shoe may be worn.
Rollers or bend shoe may be the wrong
size for the tube.
Reduce forming pressure by turning
the roller knob counterclockwise,
then recalibrate.
Do not rotate the roller knob after
Setup is completed.
Adjust the pressure to achieve proper
results by turning
the roller adjustment knob.
Check bend shoe for proper size.
Check bend shoe for excessive wear.
Bend with gap of approximately 3/8 in. or 10 mm between clamp arm and rollers.
Use suitable material for proper
machine operation.
Use suitable material for proper
machine operation.
Both rollers do not remain on tube
or end of tube is
damaged during last bend.
Warranty Information
Swagelok products are backed by The Swagelok Limited Lifetime Warranty. For a copy, visit swagelok.com or contact your authorized Swagelok representative.
Last leg of bend is too short See Minimum Length of Last Leg
Swagelok—TM Swagelok Company Castro l — TM BP Lub ricants USA In c. © 2015-2017 Swagelok Company Printed in U.S.A. April 2017, Rev I MS -13 -145
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