OPERATING MANUAL
METO-FER® AUTOMATION AG
LINEAR UNIT TYPE LG 50/…-….
SERIES FROM 6-02
1. PRODUCT DESCRIPTION
1.1 Introduction
1.1.1. Utilization
The linear unit LG 50/…is able to execute linear movements in any position. This
linear movement can be adjusted in its working area (stroke).
1.1.2. Safety Precautions
Before starting to operate the linear unit LG 50/…, it is necessary to check that no
body parts are within the working range of the element.
The maximum supply pressure of 8 bar must not be surpassed.
1.1.3. Danger Area
Any body parts are to be kept out of the working area (stroke area) of the unit in
order to avoid mangling.
1.2 Technical Data
1.2.1 Weights and Measurements
See also Sheet 5
Type Stroke A B Weight
Lb.(kg)
LG 50/200 0-200mm 522mm 266mm 23.4 (10.6)
LG 50/300 0-300mm 722mm 366mm 28.7 (13.0)
LG 50/400 0-400mm 922mm 466mm 34.0 (15.4)
LG 50/500 0-500mm 1122mm 566mm 39.2 (17.8)
LG 50/600 0-600mm 1322mm 666mm 44.5 (20.2)
LG 50/800 0-800mm 1722mm 866mm 55.1 (25.0)
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OPERATING MANUAL (LG)
1.2.2. Performance Characteristics
Piston
Type
force* Lifting force at static/dynamic Air consumption**
F1 F2 F3 F4
LG 50/200 694N 200N 400N 1000N 1300N 4.58 NL
LG 50/300 694N 150N 310N 750N 975N 6.87 NL
LG 50/400 694N 120N 250N 600N 780N 9.16 NL
LG 50/500 694N 90N 200N 500N 650N 11.45 NL
LG 50/600 694N 80N 170N 400N 520N 13.73 NL
LG 50/800 694N 60N 130N 300N 390N 18.31 NL
NL: Normal Liter
Repetition accuracy +/-0.0004" (0.01mm)
*at 72.5 PSI (5 bar).
**for each double stroke at 72.5 PSI (5 bar).
1.2.3 Operating Source
40mm filtered, unoiled or oiled air (dew point 6oC)
Operating pressure P
1.2.4 Connections
Air connections R 1/4 (see sheet 6)
1.2.5 Environment
Temperature 50
Relative humidity 95% (without condensation of water)
Purity of the environment air regular working place atmosphere
1.3 Features
3 bar
min
P
o
F to 122oF (+ 10oC to + 50oC)
max
8 bar
1.3.1 Standard Features (included in delivery)
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OPERATING MANUAL (LG)
The unit delivered will have two patented end screws type AS 12/60 with fine
thread. These end screws adjust the stroke within its working area. According to
the type, the units are equipped with the following cushions:
- Oil cushions OB 15/10L or OB 12/20
- Oil compensation reservoir KOB 50 (needed for use with oil cushions)
- Support for intermediate Pos. SA, to be used with one or more stops
(see catalog page 1.071).
1.3.2 Special Equipment
The end screws can be fitted with the patented sensing elements (see Meto-Fer
Electronic catalog, pages 22 and 23) in order to check the end position.
2. SAFETY REGULATIONS
2.1 In general
See chapters 1.1.1
1.1.2
1.1.3
2.2 Specifically
Do not make any changes or modifications on the unit (voids warranty).
3. CONSTRUCTION AND FUNCTION
The stroke adjustment can be made infinitely variable with the end screws AS
12/60 (Pos.119) in order to check the occurred movement, the end screws can be
fitted with our sensing elements (see Meto-Fer
®
Electronics catalog).
®
4. INITIAL OPERATION
4.1 Compressed Air
3
Remove the safety caps from the air connections. In order to regulate the velocity
of the movement, we recommend our flow controls DV-R1/4 (see sheet 5.021).
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OPERATING MANUAL (LG)
4.2 Stroke Adjustment
- loosen security nut on the end screw
- adjust the required stroke with the end screw (Pos.119)
- tighten security nut on the end screw
4.3 Cushion Adjustment
The basic adjustment of the cushions has to be optimized by the user upon
his special requirements.
The position of the cushions can be seen on the construction drawing.
The brake resistance can be changed by adjusting the length of the brake path.
When using oil and elastomer cushions, it must be checked that the end stop is
not made by the cushions. The cushions should show a remainder stroke of
0.0394” (1mm).
5. MAINTENANCE
5.1 Introduction
The linear unit does not require any special maintenance procedure. Never use
any type of solvents in order to clean the unit.
5.2 Air Supply
The linear unit is equipped with oil-free seals and can be operated with dry
and non-oiled compressed air. If oiled compressed air is used, we recommend:
- Airpress compound SAE 5 (Klueber Order No. 063027)
6. REPAIR
6.1 Introduction
If the unit no longer meets the requirements (leakage, wear, etc.) the
defective parts must be replaced.
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OPERATING MANUAL (LG)
6.2 Safety Precautions
Before dismounting the unit, it is necessary to check that the compressed air
supply is interrupted. It is best to disconnect the compressed air supply from the
unit.
When repair work is done, only the original spare parts and lubrication must be
used.
6.3 Replacing the Seals
- Loosen the piston rod (Pos.3) by removing the screw (Pos.203).
- Remove the plate (Pos.7) and plate (Pos.8) by loosening the screw
(Pos.201).
- Extract the shafts (Pos.2).
- Remove the front and back cylinder tops (Pos. 5 and 6) by loosening the
screws (Pos.206).
- Extract the piston rod with the piston (Pos. 3 and 9).
- Remove the cylinder pipe (Pos.4).
- Replace the seals.
- Grease the cylinder, piston rod. (See Chapter 7.2.)
- The parts are then assembled in reverse order as described above.
6.4 Replacing the linear ball bushings
- Loosen the piston rod (Pos.3).
- Remove the plate (Pos.7) plate (Pos.8).
- Extract the shafts (Pos.2) and remove the front and back cylinder tops as
in Chapter 6.3.
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- Press out the seal rings (Pos.115) and bearings (Pos.116).
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OPERATING MANUAL (LG)
- Press in the new bearings and seal rings.
- The parts are then assembled in reverse order as above described.
7. SPARE PARTS LIST
7.1 Spare Parts
When ordering spare parts, the type and serial number of the unit must be stated.
Position Part Number Description Quantity
*112 025.140.0053 Rod Seal 1 piece
*113 025.100.0810 O-Rings 2 pieces
*114 045.150.0830 Piston Seal 1 piece
*115 025.200.0030 Seal Rings 4 pieces
116 025.110.0010 Long Life Sleeve Bearings 4 pieces
Seal Kit Order No. 460.100.0081 all items marked with (*)
Repair Kit Order No. 460.110.0271 kit includes Pos.116
7.2 Lubrication
Grease for seals Staburag NBU 4 Atemp.
Grease for linear ball bushings Staburag NBU 4 Atemp.
(Klueber Order No. 005 040)
(Klueber Order No. 005 040)
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