Thank you for your having purchased the machine, favoring our product lines for your use.
This manual contains fundamental information on the specification. Please read and fully understand
the contents for your safe machine operation.
In particular , the contents of the items concerning safety in this manual and the descriptions on the
“caution plates” attached to the machine are important. Please follow the instructions contained
and keep them always in mind to ensure safe operation.
The reference record papers on adjusting setting values such as a parameter list are attached to
the machine unit and enclosed in the packing. These are necessary for maintenance and
adjustment of the machine later on. Please keep them safely not to be mislaid.
The design and specifications of this machine may be changed to meet any future improvement.
As the result, there may arise some cases where explanations in this manual could become partly
inconsistent with the actual machine. Please note this point in advance.
In this manual, items on the standard and optional specifications are handled indiscriminately.
Please refer to the “delivery note” for the detailed specification of your machine confirmation.
CONTENTS
1. General Precautions ........................................................................... 1 - 1
1-1 Precautions on Machine Operation...................................................................................1 - 1
1-2 Electric Equipment and NC Unit........................................................................................1 - 4
1-3 Weights and Measures Table............................................................................................1 - 5
General descriptions is very useful for making working environment against accidents and
increase productivity.
1. Be sure to put safety goggles on.
2. Be sure to put safety shoes on.
3. Operate with proper dressing, such as putting a utility cap on, fixing the sleeves and the
cuffs of working clothes.
4. Don’t operate the machine with gloves.
5. Make clean and neat environment by lighting up and keeping dry around the machine.
Also don’t put any obstacles.
6. Remove dust and chips on the machine, high voltage control panel and NC unit. Also
remove them on the floor. Avoid using compressed air as much as possible for these
cleanings.
7. Use a strong enough table to be put around the machine, and take anti-sliding measures on
the surface.
8. Don’t put tools, workpieces, and other items on the machine as well as on the moving parts
of the machine.
9. Don’t give any remodeling to the machine without our permission.
1-1 Precautions on Machine Operation
When conducting trial run, read the manual applied to the machine carefully for full
understanding beforehand. Witness of our operation instructor is most preferable.
Maintenance
1. An operator and maintenance personnel should read the precautions on the caution plate
fitted to the machine and observe them.
Don’t stain, damage or remove the caution plate becomes hard to read, contact Hitachi
Seiki.
2. Close all the doors and covers except when adjusting work is made.
As for the doors of the NC unit and the power control cabinet, be sure to close them with
special care.
3. Don’t remove or modify the limit switches for the stroke end, for the travelling axes and the
mechanism, or the electric circuit employed for safety.
4. Use regular wrenches and spanners for adjusting or repairing work.
5. When repairing the machine, be sure to perform lock-out or tag-out so that power switch
may not be operated.
1 - 1
Coolant
This machine doesn’t mix coolant with lubrication oil by using the economy pack. But, the
soluble cutting fluid is decomposed due to the factors such as propagation of microorganisms, which causes various troubles by lowering cutting and rust prevention
performance.
When using soluble cutting fluid, care must be taken of the following points.
prevention, bubble prevention, separability against oil and safety needs.
2.Before operation starts and after operation ends, not only remove chips, but also wipe off
soluble cutting oil adhered to each slideway, the rotating parts, the saddle and cross-slide
of the machine and then be sure to apply lubrication oil thinly to those parts.
3.Replace soluble cutting fluid immediately if it becomes vitiated.
4.Remove the covers every 6 months and clean each slideway, X, Y, Z axes ball-screws,
each limit switch and feed motors etc.
5.As soluble cutting oil is considered for rust prevention, it may be no problem when the
workpiece is wet. However, when dry, it is apt to rust.
Therefore, it is recommendable to apply rust preventive oil before the workpiece dries after
finished machining.
6.Since soluble oil is alkalescent and has a strong decreasing action, the operator is apt to
develop dermatitis.
Therefore, the operator should take appropriate precautions.
7.As for the diluting method and soluble cutting fluid, diluting water they are different
depending on the type of soluble cutting oil, so use it in accordance with the
recommendations of the cutting fluid manufacturer.
8.Since there are instances where extensive micro-organisms are detected in industrial
water, it is recommendable either to check it before use as water for dilution or to use
service water.
9.Do not use a chemical solution type (synthetic type) in water-soluble cutting agents,
because it causes detachment of coating anf affects sealing materials and resin materials
adversely.
10. The influences of difference kinds of oil on coolant are as follows: Carefully monitor the
condition the coolant fluid.
Different kinds of oil
Lubrication oil
Rust preventive oil
Mixture
(Emulsification)
Nutritive source of
micro-organism
Instabilization
of liquid
Adhesion to
machine
Propagation of
bacilli
Density
abnormality
Propagation of
bacilli
Petrifaction,
rust & others
Lowering of density
Lowering of pH
Seal due to
surfacing
Formation of state
of aversion
1 - 2
Operation
1. Be aware of the position of the push button for emergency stop so that the operator may be
able to press it instantly.
2. As for the operation of the machine, proceed in accordance with the procedure described
later.
3. During operation, keep hands away from the rotating sections and movable sect ions.
4. When disposing of chips that wound round tooling or fell onto the chip brow, etc. it is
dangerous to grasp and pull them. Further, when disposing of chips, be sure to do it after
stopping the machine.
5. When adjusting the position of the coolant nozzle, do it after stopping the machine.
Tool Setting
1. When setting up tools, stop a spindle as well as the feed in each axis.
2. Be very careful of tool length when setting them up. Do not set the tools over their specified
lengths because their tool edges may interfere with a bed, carriage, cover, tailstock, etc.
when indexing a turret.
3. Mount tools in a well balance condition. Due to high-speed turret indexing when their
mounting is unbalanced, it may lead to improper turret indexing.
4. When setting a tool to the rotating tool, it is feared that the driving side may be damaged, if
it is performed in the machine.
Whenever tools are set, be sure to do it at the outside of machine.
Workpiece Chucking
1. When chucking a workpiece, be careful of its balance. Do not turn the spindle if the
mounting of the workpiece is unbalanced badly.
2. Use standard soft jaws. Mount the jaws so that they may stay within the outer diameter of
the chuck.
3. To set pressure of chuck cylinder, determine it referring to “Chucking Pressure-Gripping
Force Diagram”.
Take note that the chuck gripping force will be suddenly reduced due to a centrifugal force
when the spindle runs at a high speed.
4. When forming the soft jaws, pay full attention to a forming ring gripping position and a
shape to which the jaws are to be formed.
After forming, check that the jaws properly grip the workpiece and that a chucking pressure
is adequate.
5. When chucking and centering a shaft work, take special note of a workpiece weight, a size
of center hole and a thrust force.
If a heavy workpiece is held with a small center hole and a load is applied, the tip of the
center may be damaged, allowing the workpiece to jump out.
1 - 3
Operation Finish
1. After operation of the machine is over, be sure to switch the power OFF in the prescribed
order, clean the machine and apply rust preventive oil to each section of the machine such
as the slide ways.
When soluble cutting fluid is used, perform these jobs with special care.
1-2 Electric Equipment and NC Unit
When operating the machine or carrying out maintenance checks, pay special attention to the
following points, concerning the electric equipment and NC unit.
1. Do not give shocks to the NC unit, power control cabinet and other machine parts.
2. For the primary wiring of the machine, use the cable size specified in the maintenance
manual. Do not use an excessively long cabtire cable.
When the primary wiring has to be put on the floor, protect it with a cover against damage
by cutting chips and other sharp objects.
3. While test running the machine, be sure the setting parameter of the NC unit coincides with
the parameter sheet attached to the machine.
4. Do not change the current set values of thermal relays in the power control cabinet, various
control knobs or the parameter data.
5. Do not apply excessive force, e.g. bending force etc., to the connector portion of plugs,
flexible conduits (tubes) or cabtire cables etc.
6. When carrying out maintenance checks on the electric equipment, turn off the
EMERGENCY STOP button on the operation panel, the power of the NC unit, the main
switch of the power control cabinet and the power switch installed in your factory, in this
order.
Start maintenance work after making sure that these switches are turned off.
Lock the power switches in the OFF state as much as possible or put up warning signs. In
additions, place a “DO NOT TOUCH” tag near the operation buttons of the machine to
forbid other personnel from operating the machine.
7. Handle electric equipment of the machine with particular care and exercise extreme caution
not to allow the machine to get wet.
8. For equipment inside the power control cabinet, use those specified by Hitachi Seiki. Use
always specified fuses. Never use fuses with a higher capacity.
9. Never leave the control cabinet door open, because direct sunshine or camera’s strobe
flash rays may enter the cabinet and damage internal equipment.
10.In case of turning on the power again, execute power on went by equal to or more than two
seconds after power turned off. If the power is turned on during discharge from control
devise by power off, pay attention to the alarm of the machine is displayed some time, due
to normal process is not available.
= 0.2642 U.S. gallon = 1.0567 U. S. quarts
= 0.2200 U.K. gallon =0.02745 bushel
3
1cm
(cubic centimeter)= 0.061 cubic inch
4. Weight
1 ton (metric ton)= 0.9842 U. S. (long) ton= .2204.6 pounds
= 1.1023 U. K. (short) ton
1 kg (kilogram) = 2.2046 pounds = 35.274 ounces avoirdupois
5. Others
0.098 MPa (Mega-Pascal)= 14.223 pounds per square inch
9.8 N.m (Newton-meter)= 7.233 foot-pounds
1 - 5
2. SPECIFICATIONS
2-1Machine Outline
The equipment has two sets of vertical headstocks and drum type tool posts of the same structure
installed on the integral bed. The reversing unit is installed in the center of the equipment to allow
the left and right machines to mutually transfer the work between them. The left and right machines
are simultaneous 2-axis control NC lathes for chuck work, respectively.
The following lists the features of the equipment:
1.The vertical headstock can move in the X- and Z-axis directions. In addition to cutting, it
loads and unloads the workpieces through X-directional movement to the outside of the
machine and Z-axis movement. Basic movements are as follows:
The workpiece is introduced from the feeder of the left machine. Once the workpiece is finished
with machining, it moves to the right machine via the reversing unit. After 1st- and 2nd-process
machining is completed, the finished workpiece is unloaded onto the feeder of the right machine.
2.The workpiece can be passed not only from the left to the right, but the other way around.
The left and right machines can also machine different workpieces independently. The
tools used and the machine operating methods are common to both left and right machines.
3.An AC inverter motor is used for the spindle to allow a wide range of stepless speed change.
4.The inner-diameter tools are radially arranged, offset from the outer-diameter tools to ensure
that the tools do not interfere with the workpiece within the standard machining diameter .
5.The electromechanical structure integrated with the coolant tank and circular stocker
saves the space and facilitates transportation/move.
6.A diagnostic function is added.
7.A machining range can be further expanded by adding optional accessories.
Outline of Equipment Structure
1.Mechanical Construction
・ The headstock is vertically suspended and moves along the X- and Z-axis.
・ The X-axis is provided long enough to allow the headstock to move to a workpiece
loading position outside the machine.
・ The tool post is secured under the headstock and performs only indexing.
2.Headstock
A high-torque built-in motor allows a wide range of automatic speed change as follows:
CS20 30 to 5,000 min
{
CS25 30 to 4,000 min
3. Tool Post
High indexing accuracy is ensured by a unique coupling system.
Indexing operation is driven by a servo motor and clamping operation by a hydraulic unit,
respectively, to improve certainty of operations.
4.The 12-face VDI rotary tool post allows you to mount the X- and Z-directional rotary tools
to any turret faces.
Simultaneous 3-axis control is enabled by adding a spindle C-axis control function.
26FunctionG3, M3, T4
27Spindle speed commandS code/speed direct
28Constant surface speed control
2 - 6
ItemStandard specification
29Automatic tool nose radius
compensation
30Grooving width offset(I.D., O.D., Face)
31Tool offsets32 sets
32Q-setter repeat function
33Cutting point coordinate system
setting
34Reference point returnManual, Auto G27~29
352nd reference point returnG30
36Graphic displayBefore and synchronized machining
3716-character program name
38Single block
39Block skipTotal 9 pcs. (with switch 5 pcs.)
40Optional stop
41Program check functionDry run + Spindle stop + coolant stop
42Machine lock
43Program numberO 8 digit
44Program number search
45Sequence number search,
Sequence number comparison
46Program comparison
47Manual absolute[ON] fixed
48Custom macroCommon variable 300 pcs.
49Soft jaws forming function
by graphic
50Fixed cycleG90, G92, G94
51Multiple repetitive cycleG70~G76
52Mirror imageSetting via screen
53Chamfering/corner R any angle
54Radius designation on arc
55Exact stopG09 G61 G64
56Programmable data inputG10
• How to Use Base Holder of VDI System
Mounting Method to Turret Head
A mounting method of a holder to the turret is as follows;
With an attached 10mm hexagon bar wrench inserted into the hexagon socket head cap
screw and turned rightward, the base holder is tightly fitted to the turret head.
Caution
•To mount a tool holder on the turret, do not tighten it with excessive force. Guideline
of tightening force applied is as in the right drawing.
•To take off a holder form the turret, loosen the clamp bolt by about 4 turnings.
2 - 17
4. Solid Chuck and Soft Jaws
Jaw stroke(in diameter): J/Shifter stroke: Y
Soft Jaw
Details of Serrated Part
Symbol
Chuck T ype
HG-715-210 (Made by KITAGAWA)HG-730-254 (Made by KITAGA WA )
A 210 ( 8.3”)254 (10”)
B103 (4.1”)127 (5”)
C39 (1.5”)46 (1.8”)
D51 (2”)51 (2”)
E 133.4 ( 5.25”)171.4 ( 6.75”)
F 106.375 ( 4.188”)139.719 ( 5.50”)
G 38 ( 1.5”)45 (1.8”)
H M12x 30 M12x 35
I M12x 105 M16x 135
J/Y 12/28.5 (0.47/1.12”)14.8/5 ( 0.58/1.38”)
K/L 95/35 (3.7”/1.4”) 110/40 (4.3”/1.6”)
M 12 (0.5”) 15 (0.6”)
N 38 (1.5”) 42 (1.7”)
O/P 33/14 (1.3”/0.5”) 37/16 (1.5”/0.6”)
Q 75 (3”) 90 (3.5”)
CS20CS25
S/T 24/25 (0.9”/1”) 30/30 (1.2”/1.2”)
U/R 19/23 ( 0.7”/0.9”)19/27 ( 0.7”/1.1”)
V M20 P2.5 M20 P2.5
W 111.5-83 (4.4”~3.3”) 125-90 (4.9”~3.5”)
2 - 18
2 - 19
5. Connecting Parts for
φ210 Solid Chuck
No.NameDrawing No. or typeQ‘ty
1Rod61Q34658301
2Adapter B61Q34658121
3Adapter A61Q34652231
4Bolt with hexagonal hole4B12356
5Bolt with hexagonal hole4B10306
6Washer4B8256
7Washer1682-95-443-**1
Dimension : metric (mm)
inch (”)
2 - 20
Connecting Parts for
φ254 Solid Chuck
No.NameDrawing No. or typeQ‘ty
1Rod
2Adapter B1682-00-840-00Each
3Adapter A1
4Bolt with hexagonal hole4B12356
5Bolt with hexagonal hole4B10406
6Bolt with hexagonal hole4B10306
Dimension : metric (mm)
inch (”)
3. REQUIRED DIMENSION FOR MACHINE
3-1 Spindle Traveling Range
3-1-1 12-station Base Holder Turret Head Type
CS20 Spindle Traveling Range (Base Holder Type)
Dimension : metric (mm)
inch (”)
3 - 1
Position Area
C Feeder Area
D Area where initial stage one-touch
original point return is possible
CS20 (Base Holder Turret Head Type)
3 - 2
STROKE 190
(7.5”)
(2.9”)
(5.5”)
(4.7”)
(8.8”)
I.D.
TOOL
(5.5”)
(0.6”)
(φ 1.3”)
X-AXIS ORIGIN
CHUCK
(
φ
8.3”)
STROKE 190
(7.5”)
(1.6”)
(4”)
(1.5”)
(14.6”)
(28.1”)
(4.7”)
(4.7”)
X-AXIS ORIGIN
8.3”)
CHUCK
(1.4”)
(
φ
(1.6”)
(4”)
(1.5”)
(14.6”)
(28.1”)
STROKE 370
STROKE 370
O.D.
(8.9”)
(6.4”)
TOOL
(6.4”)
Dimension: metric (mm)
Inch (”)
3 - 3
CS25 Spindle Traveling Range (Base Holder Type)
Position Area
C Feeder Area
D Area where initial stage one-touch original point return is possible
Dimension : metric (mm)
inch (”)
(7.5”)
STROKE 190
X-AXIS ORIGIN
(7.5”)
STROKE 190
X-AXIS ORIGIN
CS25 (Base Holder Turret Head Type)
3 - 4
inch (”)
TOOL
Dimension : metric (mm)
I.D.
(2.9”)
(4.7”)
(1.7”)
CHUCK
(
φ
10”)
(5.5”)
(6.3”)
(1.3”)
(5”)
φ
(
(1.8”)
(30.2”)
(14.5”)
(1.4”)
(4.7”)
(4.7”)
CHUCK
10”)
STROKE
(0.6”)
(8.9”)
(7.1”)
O.D.
TOOL
(8.9”)
(1.7”)
(5”)
(1.8”)
(30.2”)
(14.5”)
STROKE
(7.1”)
12-station Base Holder Turret Head Type Interference Drawing
(1.4”)
8.3”)
φ
(
(
φ
10”)
(0.3”)
(φ 8.3”)
3 - 5
Dimension: metric (mm)
Inch (”)
3-1-2 12-station VDI/VDI Rotating Tool Turret Head Type
CS20 Spindle Traveling Range (VDI Type)
Dimension : metric (mm)
inch (”)
3 - 6
Position Area
C Feeder Area
D Area where initial stage one-touch
original point return is possible
CS20 (VDI/VDI Rotating Tool Turret Head Type)
I.D. Tool
3 - 7
STROKE 190
(2.9”)
(5.5”)
(9.6”)
Dimension: metric (mm)
(7.5”)
(
φ
1.3”)
STROKE 190
X-AXIS ORIGIN
(1.6”)
(φ 8.3”)
(5.3”)(2.7”)(2.7”)
CHUCK
(1.5”)
(4”)
(14.6”)
(28.1”)
STROKE 370
(11”)
(6.4”)
I.D. TOOL
(7.5”)
(2.7”)
(2.7”)
(φ 8.3”)
(1”)
(4.3”)
(1.3”)
O.D. TOOL
X-AXIS ORIGIN
CHUCK
• O.D. Tool
(1.6”)
(4”)
(1.5”)
(14.6”)
(28.1”)
STROKE 370
(6.4”)
Inch (”)
STROKE 190
(7.5”)
X-AXIS ORIGIN
STROKE 190
(7.5”)
CS20 (VDI Rotating T ool Turret Head Type)
Rotary Tool
X-AXIS ORIGIN
3 - 8
Dimension: metric (mm)
(1.6”)
CHUCK
(φ 8.3”)
(1.5”)
(3.6”)(4.4”)
(4”)
(14.6”)
(28.1”)
(3.4”)
(3.5”)
(6.1”)
(φ 8.3”)
CHUCK
(1.5”)
STROKE 370
(8.3”)
(8.3”)
X-AXIS
(6.4”)
(2.7”)
ROTATION TOOL
(1.9”)
(1.1”)
Z-AXIS
ROTATION TOOL
(1.6”)
(4”)
(14.6”)
(28.1”)
STROKE 370
(6.4”)
(8”)(2.7”)
Inch (”)
CS25 Spindle Traveling Range (VDI Type)
Dimension : metric (mm)
inch (”)
3 - 9
Position Area
C Feeder Area
D Area where initial stage one-touch
original point return is possible
(7.5”)
STROKE 190
X-AXIS ORIGIN
(7.5”)
STROKE 190
X-AXIS ORIGIN
CS25 (VDI/VDI Rotating Tool Turret Head Type)
3 - 10
(2.6”)
(1.3”)
(2.6”)
(1.2”)
I.D. TOOL
(5.5”)
(2.9”)
(
φ
10”)
(9.6”)
CHUCK
(5.5”)
(1.7”)(5”)
(1.8”)
(14.5”)
(30.2”)
STROKE 370
(7.1”)
(2.6”)
(2.6”)(1”)
O.D. TOOL
(
φ
(10.9”)
CHUCK
10”)
(1.7”)
I.D. Tool
(5”)
• O.D. Tool
(1.8”)
(14.5”)
(30.2”)
STROKE 370
(7.1”)
(7.5”)
STROKE 190
X-AXIS ORIGIN
(7.5”)
STROKE 190
X-AXIS ORIGIN
CS25 (VDI/VDI Rotating Tool Turret Head Type)
3 - 11
CHUCK
(
φ
10”)
(5.5”)
(4.4”)
(3.5”)
X-AXIS
ROTATION TOOL
(1.7”)
(5”)
(1.8”)
(14.5”)
(30.2”)
(6.3”)
(
φ
CHUCK
10”)
(3.4”)
STROKE 370
(3.5”)
(2.6”)
(1.9”)
(8.3”)
(7.1”)
(1.1”)
Z-AXIS
(8.3”)
(1.7”)
(5”)
(1.8”)
(14.5”)
(30.2”)
STROKE 370
(7.1”)
Rotary Tool
ROTATION TOOL
(2.6”)
(8.3”)
12-station VDI/VDI Rotating Tool Turret Head Type Interference Drawing
(2.7”)
(1”)
8.3”)
φ
(
(
φ
10”)
(0.6”)
(φ 10”)
3 - 12
Dimension: metric (mm)
Inch (”)
3-2Output Diagram
(1) S pindle Output Diagram
The equipment is equipped with variable AC motors. Output in a torque constant range differs
depending on the current spindle speed.
If heavy cutting (roughing, etc.) is carried out in the torque constant range, the spindle may
stop, not being able to endure a cutting force.
Therefore, select a speed range so that heavy cutting will be carried out in an output constant
range.
CS20
The following chart shows the output constant range which ensures the rated output of
the machine, "11 kW."
POWER
TORQUE
SPINDLE SPEED [min-1]
3 - 13
CS25
The following chart shows the constant output range which ensures the rated output of
the machine, "18.5 kW."
-1
(rpm)
-1
(rpm)
TORQUE
POWER
Low-speed range M40 range450to 1,200 min
High-speed range M41 range1,200 to 4,000 min
LOW-SPEED WINDING TORQUE
CONST ANT RANGE
HIGH-SPEED WINDING TORQUE
CONST ANT RANGE
SPINDLE SPEED
How to Read the Diagram
Read the spindle speed you want to use on the bottom scale. Draw a line upward from that
point to make it intersect with a thick full line. Read the value of the intersecting point on the left
scale. This value indicates the maximum output(kW) at that spindle speed.
Read the spindle speed you want to use on the bottom scale. Draw a line upward from that
point to make it intersect with a thick dotted line. Read the value of the intersecting point on the
right scale. This value indicates the torque(kgf-m, N-m) at that spindle speed.
The top lines in the chart indicate the short-time rating.(ON for 5 minutes and OFF for 5
minutes in the 10-minute cycle) The bottom lines are used for continuous operation.