Turning Centers with Twin Spindles
1 2
Turning Centers with Twin Spindles
Photos shown in this brochure may also show optional equipment.
(Twin Spindles)
(Simul Cuts)
(M Machining)
Integrated
ShorterCycles
Process-Intensive
In All DirectionsPerformance that lets you seek the highest productivity. Complete machining on a single machine with left and right spindles, upper and lower turrets.
Thermo-FriendlyConcept
Collision AvoidanceSystem
MachiningNavi
3 4
Highly efficient, repeated machining of complex-shaped parts on 3 turrets. Equipped with powerful spindles that have the same capacity on left and right and turrets with the same capacity on top and bottom, optimizing the cycle time balance for 1-2 processes. Long-run continuous operation is also possible with auto bar feeder and unloading systems.
Flexible production systems give the ultimate production efficiency.
V16 turrets are used for all turrets. Handles complex shape, multi-process, high mix production with 3 turrets and up to 48 tools mounted. Fewer tool changes and greatly reduced non-cutting time.
Achieve the best production system with our abundant lineup
Achieve even greater productivity and process-intensive machining by selecting specifications matched to use, such as simultaneous machining with 3 upper/lower turrets or simultaneous upper/lower Y-axis machining.
High machining accuracy is maintained and worker burden is reduced.
Using the Thermo-Friendly Concept, dimensional accuracy is maintained at high levels during cycle starts and machining restarts. The number of dimensional corrections is reduced and work efficiency is raised.
Increase productivity to the highest possible level withprocess-intensive machining, integrated operations
■ Spec variations
The image has 3-turret, V16 specifications.
Handles many types of bar blanks
Bar blank diameters that can be machined are expanded to ø51 mm (LT2000 EX),ø69 mm (LT3000 EX). Also handles sizes of a higher rank. Continuous nighttime operation isalso possible with the use of bar feeders.
First multitasking turret(upper left turret)
Second multitasking turret(lower right turret)
Third multitasking turret(Upper right turret)
Without Y-axis control
With Y-axis control
Without Y-axis control
With Y-axis control
Without Y-axis control
With Y-axis control
2M
●
●
1MY
●
●
2MY
●
●
3M
●
●
●
2MY
●
●
●
2-turret specs 3-turret specs
3MY
●
●
●
YB
ZB
XB
ZA
YAXC
ZC
YCXA
W(Fixed)
1st turret(Upper M-V16 turret)
2nd turret(Lower M-V16 turret)
3rd turret(Upper M-V16 turret)
Right spindleLeft spindle
Complex shape, variable-mix, variable-volume productionachieved with the highest productivity
3 4
Highly efficient, repeated machining of complex-shaped parts on 3 turrets. Equipped with powerful spindles that have the same capacity on left and right and turrets with the same capacity on top and bottom, optimizing the cycle time balance for 1-2 processes. Long-run continuous operation is also possible with auto bar feeder and unloading systems.
Flexible production systems give the ultimate production efficiency.
V16 turrets are used for all turrets. Handles complex shape, multi-process, high mix production with 3 turrets and up to 48 tools mounted. Fewer tool changes and greatly reduced non-cutting time.
Achieve the best production system with our abundant lineup
Achieve even greater productivity and process-intensive machining by selecting specifications matched to use, such as simultaneous machining with 3 upper/lower turrets or simultaneous upper/lower Y-axis machining.
High machining accuracy is maintained and worker burden is reduced.
Using the Thermo-Friendly Concept, dimensional accuracy is maintained at high levels during cycle starts and machining restarts. The number of dimensional corrections is reduced and work efficiency is raised.
Increase productivity to the highest possible level withprocess-intensive machining, integrated operations
■ Spec variations
The image has 3-turret, V16 specifications.
Handles many types of bar blanks
Bar blank diameters that can be machined are expanded to ø51 mm (LT2000 EX),ø69 mm (LT3000 EX). Also handles sizes of a higher rank. Continuous nighttime operation isalso possible with the use of bar feeders.
First multitasking turret(upper left turret)
Second multitasking turret(lower right turret)
Third multitasking turret(Upper right turret)
Without Y-axis control
With Y-axis control
Without Y-axis control
With Y-axis control
Without Y-axis control
With Y-axis control
2M
●
●
1MY
●
●
2MY
●
●
3M
●
●
●
2MY
●
●
●
2-turret specs 3-turret specs
3MY
●
●
●
YB
ZB
XB
ZA
YAXC
ZC
YCXA
W(Fixed)
1st turret(Upper M-V16 turret)
2nd turret(Lower M-V16 turret)
3rd turret(Upper M-V16 turret)
Right spindleLeft spindle
Complex shape, variable-mix, variable-volume productionachieved with the highest productivity
5
Highly efficient machining with spindleswith same capacity on left and right
Left and right spindles equipped with high accuracy integral motor/spindles make part transfer possible during spindle operation with synchronized C axis control.
Achieve ideal balance for 1-2 processes
■ Machining capacity
LT2000 Ex actual data
Turning Workpiece material: S45C
OD heavy-dutycutting: 2.5 mm2
Cutting speed: 150 m/minCutting depth: 5 mmFeedrate: 0.5 mm/rev(Left spindle: First turret)
LT2000 Ex actual data
Drilling: ø30 carbide drillCutting speed: 150 m/minFeedrate: 0.15 mm/rev(Left spindle: First turret)
LT3000 Ex actual data
OD heavy-dutycutting: 4.4 mm2
Cutting speed: 150 m/minCutting depth: 8 mmFeedrate: 0.55 mm/rev(Left spindle: First turret)
Drilling: ø63 carbide drillCutting speed: 120 m/minFeedrate: 0.2 mm/rev(Left spindle: Second turret)
Milling Workpiece material: S45C
End milling: 144 cm3/minø16-mm 5-flute carbideend millCutting speed: 201 m/minCutting depth: 3.0 × 16 mmFeedrate: 0.75 mm/rev(Left spindle: First turret)
Drilling: ø16 carbide drillCutting speed: 135 m/minFeedrate: 0.25 mm/rev(Left spindle: First turret)Tap: M16 P2(Left spindle: First turret)
Note: The “actual data” referred to above for this brochure represent examples, and may not be obtained due to differences in specifications,tooling, cutting, and other conditions.
*1. Left spindle only *2. Up to ø69 mm is possible with 10-inch chuck.Note: The chuck/cylinder used may limit machinable bar diameters.
Turrets with the same upper and lowercapacity enable full process-intensivemachining
V16 turrets are used on both top and bottom to handle complex shape, multi-process, high mix production. Setup change time can be shortened with permanent tool sets.
LT3000 Ex actual data
End milling: 200 cm3/minø20-mm 7-flute carbideend millCutting speed: 200 m/minCutting depth: 2.5 × 20 mmFeedrate: 1.26 mm/rev(Left spindle: First turret)
Drilling: ø20 carbide drillCutting speed: 135 m/minFeedrate: 0.23 mm/rev(Left/right spindles:First and second turrets)Tap: M20 P2.5(Left/right spindles:First and second turrets)
The image has 2-turret, V16 specifications.The image has 2-turret, V16 specifications.
Spindle motor
Bar diaStandard spindle
Big bore spindle
ø51 mm
ø65 mm
VAC 11.5/7.5 kW
(5 min/cont)
LT2000 EX
ø65 mm
ø80 mm
VAC 22/15 kW
(30 min/cont)
LT3000 EX
Milling-tool spindle motor
Rapid traverse X axis: 30 m/min, Z axis: 40 m/min
PREX 5.5/3.7 kW
(2 min/cont)
LT2000 EX
PREX 7.1/4.1 kW
(25 min/cont)
LT3000 EX
*1
*2
Minimize takt time with third turret (Optional)
Well-balanced cycle times achieved with simultaneous machining using upper left and right turrets and lower turret. Cycle times can be significantly shortened.
Y-axis specifications (Optional) added on all turrets
Achieve the best production system with ourabundant lineup
L sp
R sp
L sp
R sp
3turrets
2turrets
Example of spoolø80 × 60 L
6
Simultaneous upper/lower Y-axis machining possible.
Best also for automation with many differentspecifications
Spindle center
YB axis
YA / YCaxis
Y-axis travel95 mm
YA, YB, YC: +50 to −45
LT2000 EX
125 mm
YA, YB, YC: +70 to −55
LT3000 EX
Bar feeder (Optional) + Unloader (Optional)
Unloader(Optional)
Automation systems can be built to correspond to the machining job, including bar feeder, unloader, and loader specifications. Reduces operator burden and raises productivity even further.
1 min 2 min 3 min 4 min
1st tur (U-M-V16)
2nd tur (L-M-V16)
1st tur (U-M-V16)
2nd tur (L-M-V16)
3rd tur (U-M-V16)
45%shorter
7 8
Simple machine construction
Machine designs that equalize ambient temperatures
Highly accurate control technology
Thermo-FriendlyConcept
Machine coversPeripheral equipment placementMachine “hot spots” diffused
Machine designsthat equalize ambient
temperaturesSymmetrically builtThick walls
Simple machineconstruction
Thermo Active Stabilizer––Construction (TAS-C)
Highly accuratecontrol technology
Okuma’s Thermo-Friendly is a structurally designed, thermal deformation control system that provides astonishing machining accuracy.
It frees the machinist from troublesome offsets and machine warm-ups—is superb for long runs, multitasking, front/backend work, plus Y-axis
applications.
Manageable Deformation—Accurately Controlled
Thermo-Friendly Concept
The unique approach of "accepting temperature "changes."
Thermo-Friendly Concept
Energy-saving functions Energy-saving technology
In environments with normal temperature changes, machining accuracies equivalent to those in temperature-controlled rooms are achieved.As long as the operator is comfortable, no air conditioning is needed to ensure accuracy.
Environmental economic benefits ofOkuma’s Thermo-Friendly Concept
■ Amount of energy consumed fortemperature-controlled room
Savings of approximately210,000 kWh per year *
Prevents CO2 emissions equivalentto about 11,500 beech trees
■ High-performance single CPU configuration ■ Energy savings from simple design■ Energy-saving display device
Energy-saving servo, NC units ■ Power-saving function
Peripheral device power shutoff after completion of automatic operation
· Spindle cooler, etc.
Energy-saving function
* Calculations are examples only, and may differ from actual circumstances. Temperature-controlled room capacity: 10m × 10m × H3m ±2°C
■ Turning spindle power/torque diagrams● LT2000 EX Standard specifications
Spindle speed 6,000 min-1
Motor output VAC 11.5/7.5 kW (5 min/cont)
Spindle torque 183/119 N-m (5 min/cont)
■ Milling tool spindle power/torque diagram● LT2000 EX Standard V16 turret
Spindle speed 6,000 min-1
Motor output PREX 5.5/3.7 kW (2 min/cont)
Spindle torque 22.5/15 N-m (2 min/cont)
● LT3000 EX Standard specifications
Spindle speed 5,000 min-1
Motor output VAC 22/15 kW (30 min/cont)
Spindle torque 427/280 N-m (30 min/cont)
● LT2000 EX High output specification
Spindle speed 6,000 min-1
Motor output VAC 22/15 kW (5 min/cont)
Spindle torque 183/119 N-m (5 min/cont)
● LT3000 EX Standard V16 turret
Spindle speed 6,000 min-1
Motor output PREX 7.1/4.1 kW (25 min/cont)
Spindle torque 40.4/23.4 N-m (25 min/cont)
● LT3000 EX High output specification
Spindle speed 5,000 min-1
Motor output VAC 30/22 kW (30 min/cont)
Spindle torque 427/280 N-m(10 min/cont)
50 10010
50
100
200
1
5
20
10
Spindle speed min-1
1,000 6,000500
600 1,200
183 N-m (5 min)
119 N-m (cont)
92 N-m (5 min)
60 N-m (cont)
11.5 kW (5 min)
7.5 kW (cont)
50 100
50
10
100 1
5
10
Spindle speed min-1
1,000 6,000500
2,337
22.5 N-m (2 min)
15 N-m (cont)
5.5 kW (2 min)
3.7 kW (cont)
50 100 1,000 6,000
10
50
1
5
10
1,680
5,560
45
Spindle speed min-1
500
100
7.1 kW (25 min)
4.1 kW (cont)
40.4 N-m (25 min)
23.4 N-m (cont)
50 100 1,000 5,000
50
100
500
1
5
10
20
1,1005103,000
45
Spindle speed min-1500
22 kW (cont)
15 kW (cont)
4,200
427 N-m (10 min)
280 N-m (cont)
260 N-m (30 min)
191 N-m (cont)
30 kW (30 min)22.8 kW (10 min)
50 100 1,000 5,000
50
10
100
500
1
0.1
5
10
20
510 1,1004,500
45
Spindle speed min-1500
427 N-m (10 min)
280 N-m (cont)
191 N-m130 N-m
22 kW (30 min)
15 kW (cont)
50 10010
50
100
200
1
5
20
10
Spindle speed min-1
1,000 6,000500
600 1,200 2,300
183 N-m (5 min)
119 N-m (cont)91 N-m (5 min)
62 N-m (cont)
11.5 kW (5 min)
7.5 kW (cont)
22 kW (5 min)
15 kW (cont)
4,200
Thermo-FriendlyConcept
Overall control of thermal deformation on headstock, turret, and bed
Super thermostability minimizes machiningdimensional changes over time
Ecology & EconomyMachines and technology to achieve eco-friendly "monozukuri"
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Sp
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Sp
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N-m
Sp
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N-m
Sp
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N-m
Sp
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N-m
Sp
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N-m
Sp
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out
put
kW
Sp
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kW
Sp
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out
put
kW
Sp
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le m
otor
out
put
kW
Sp
ind
le m
otor
out
put
kW
■ TAS-C [Thermo Active Stabilizer – Construction]
9 10
■ Machine Specifications
■ Standard Specifications & Accessories■ Optional Specifications & Accessories
L/R ø140 flat, 50 to 6,000 min-1
VAC 11.5/7.5 kW (5 min/cont)
OD 20 × 20, ID ø32
PREX 5.5/3.7 kW (2 min/min)
L/R A2-6, 45 to 5,000 min-1
VAC 22/15 kW (30 min/cont)
OD 25 × 25, ID ø40
PREX 7.1/4.1 kW (25 min/min)
U/L M-V16 (L/M 16 tools)
45 to 6,000 min-1
Chip washing nozzle (distribution type)
L/R chuck air blast
Oil level alarm/pressure alarm (lube monitor)
LED
OSP-P300L
15" color TFT display
Thermo Active Stabilizer – Construction
Big-bore spindle
Turning spindlehigh output specs
V12 turret
Chip conveyor(types)
Chip pan
Chip bucket
Coolant
LT2000EX: JIS A2-6 50 to 5,000 min-1
Spindle bearing ID ø120, spindle bore ø80
LT3000EX: JIS A2-8 45 to 4,200 min-1
Spindle bearing ID ø140, spindle bore ø91
LT2000EX: 50 to 6,000 min-1
VAC 22/15 kW (5 min/cont)
LT3000EX: 45 to 5,000 min-1
VAC 30/22 kW (30 min/cont)
Tools, 12 pcs
Hinge, scraper, scraper + drum filter
Side discharge, rear discharge; L/H discharge heights
Side discharge, rear discharge
L type (height 700 mm)
H type (height 1,000 mm)
Rear chute L/R
Coolant gun
Shower coolant (L/R)
Spindle ID coolant (L/R)
Coolant temperature controller
Coolant sludge control
Coolant level detection
High pressure coolant unit
Anchor fixation
Chucking related
Chip air blower
AbsoScaledetection
Temperatureregulator
Automation
Front cover related
Toolholders, sleeves
Raised machineheight
Solid chuck
Hollow chuck
Chuck pressure high/low switch (L/R)
Chucking miss sensor (L/R)
Chuck air blower (L/R)
Turret air blast
Spindle ID air blast (L/R)
XA, XB, XC, YsA, YsB, YsC, ZA, ZB, ZC axes
Spindle, coolant and hydraulic oil
Bar feeder
Loader, robot
Touch setter A, M (L/R)
In-process work gauging (upper/lower turret)
Parts catcher
Unloader
Output conveyor
Auto front door open/close, two-hand cycle start button
50 mm, 100 mm, 150 mm
LT2000 EX
2-turret specs
960 (37.80)
XA, XB: 205 (+175 to −30)
ZA, ZB: 700, W: 730
XA: 3.5, XB: 2.8¦
ZA, ZB: 3.5
0.8 × 3
15 (591)
2,435 (95.87)
9,300 (20,460)
1MY
YsA: 3.5
3M
−
−
−
2,285 (89.96)
9,300 (20,460)
YA, YB: 95(+50 to −45)
YA: 95(+50 to −45)
YA, YB: 95(+50 to −45)
YA, YB, YC: 95(+50 to −45)
*1: Rough dimensions for work lengths that can be axially milled simultaneously on 2 turrets *2:Side chip discharge specs [ ] Optional
ø550 (ø21.66)
ø350 × L200 (ø13.78 × L7.88)
1,200 (47.25)
360 (minimum control angle 0.001)
45 to 5,000 [45 to 4,200]
2 auto ranges (motor coil switching, 2 ranges)
A2-6 [A2-8]
ø80/120 [ø91/140]
Multitasking V16 [V12]
16 [12] (L, M)
25/ø40 (1 × 1/ø1-1/2)
45 to 6,000
30 (1,181)
40 (1,575)
40 (1,575)¦
200¦
L/R: VAC 22/15 (30/20) [30/22 (40/30)] (30 min/min)
PREX 7.1/4.1 (95/5.5) (25 min/min)
¦
¦
2,669 (105.08)
4,504 × 2,750
OSP-P300L
LT3000 EX
2-turret specs
XA, XB: 255 (+225 to −30)
ZA, ZB: 930, W: 940
XA, XB: 3.5
ZA, ZB: 3.5
0.8 × 3
2M
−
−
−
11,200 (24,640)
20 (787)
11,600 (25,520)
3M
−
−
−
12.600 (27,720)
20 (787)
13,200 (29,040)
3MY
YsA, YsC: 3.5YsB: 2.2
2MY
YsA: 3.5YsB: 2.2
3-turret specs
XA, XB, XC: 255 (+225 to −30)
ZA, ZC: 480, ZB: 930, W: 940
XA, XB, XC: 3.5
ZA, ZB, ZC: 3.5
0.8 × 4
YA, YB: 125(+70 to −55)
YA: 125(+55 to −70)
YA, YB, YC: 125(+70 to −55)
YA, YB: 125(+70 to −55)
[ ] Optional
3-turret specs
990 (38.98)
XA, XB, XC: 205 (+175 to −30)
ZA, ZC: 400, ZB: 730, W: 760
XA, XC: 3.5, XB: 2.8¦
ZA, ZB, ZC: 3.5
0.8 × 4
15 (591)
¦
2,435 (95.87)
9,800 (21,560)
3MY
YsA, YsC: 3.5
YsB: 3.0
2MY
YsA: 3.5
YsB: 3.0
LT2000 EX LT3000 EX
Spindle
Turret
Tools
Milling tool spindle speed
Motors
Spindle cooler
Standard accessories
Hydraulic unit
Coolant unit
Chip air blower
Lube system
Triple-lamp status indicator
Chuck foot pedal
Work lamp
Jack bolts, foundation block
Hand tools
Standard specs
Front door interlock
Control unit
Operation panel
Pulse handle
TAS-C
2MY
YsA: 3.5
YsB: 3.0
2MY
YsA: 3.5YsB: 2.2
1MY
YsA: 3.5
2M
−
−
−
2,285 (89.96)
8,500 (18,700)
ø400 (ø15.75)
ø210 × L130 (ø8.28 × L5.12)
360 (minimum control angle 0.001)
50 to 6,000 [50 to 5,000 (Left spindle only)]
2 auto ranges (motor coil switching, 2 ranges)
ø140 flat [JIS A2-6 (Left spindle only)]
ø62/100 [ø80/120 (Left spindle only)]
Multitasking V16 [V12]
16 [12] (L, M)
20/ø32 (3/4 / ø1-1/4)
45 to 6,000
30 (1,181)
40 (1,575)
32 (1,260)¦
200¦
L/R: VAC 11.5/7.5 (15.3/10) [22/15 (30/20)] (5 min/min)
PREX 5.5/3.7 (7.5/5) (2 min/min)
¦
¦
3,745 × 2,464
OSP-P300L
Model
Capacity Swing over saddle
Max machining dia × length*1
Distance between noses
Travel X axis
Z axis
Y axis
C axis
Spindle Speed(L/R) Speed ranges
Spindle nose
Spindle bore / Front bearing ID
Turret Type
No. of tools
OD tool shank
Milling tool spindle speed
Rapid X axistraverse Z axis
Y axis
W axis
C axis
Motors Main spindles
Milling tool
X axis
Z axis
Ys axis
Coolant pump
Machine Height*2
size Floor space (including tank)*2
Weight (with CNC)
CNC
mm (in.)
mm (in.)
mm (in.)
mm
mm
mm
deg
min-1
mm
mm (in.)
min-1
m/min (ipm)
m/min (ipm)
m/min (ipm)
m/min (ipm)
min-1
kW (hp)
kW (hp)
kW
kW
kW
kW
mm (in.)
mm × mm
kg (Ib)
90
LT2000 EX
■ Tooling System
V16 turret(420 across flats)
Drill sleevesMT No.1-H32MT No.2-H32
● Boring bar ø32
● Collets(Alps Tool AR-25)
ø1 to ø16
● Commerciallyavailable items
ID Turning
Boring bar sleeves ø6-H32 ø8-H32ø10-H32ø12-H32
ø16-H32ø20-H32ø25-H32
ID-H32
OD-I-S
OD-I-D
OD-II
OD Turning
Milling tool
Axial mill/drill unit
Radial mill/drill unit
Dummy holder
*
*
11 12
LT3000 EX
Drill sleevesMT No.1-H40MT No.2-H40MT No.3-H40MT No.4-H40
● Boring bar ø40
ID Turning
Boring bar sleevesø10-H40ø12-H40ø16-H40
ø20-H40ø25-H40ø32-H40
ID-H40
OD-I-S
OD-I-D
OD-II
*
OD Turning
● Collets(Alps Tool AR-32)
ø2 to ø20
● Commerciallyavailable items
Milling tool
Axial mill/drill unit
Radial mill/drill unit
Dummy holder
*
V16 turret(470 across flats)
■ Chip conveyor types and applications
Recommended Chip Conveyors
Note: Machine platform may be necessary depending on the type of conveyor.
LT3000 EX V16 multitasking turret
LT2000 EX V16 multitasking turret
■ Tool Interference Drawing
ø650(max turning dia)
ø165
ø205
ø175
ø215
ø190
ø175ø155
ø135
ø16
55
60ø51
ø210
ø145ø135
ø190
55
60
ø51
ø210ø175
ø200
ø190
210 210X-axis travel
205X-axis travel
2058526528
25
Spindlecenter
Axial mill/drill unit
OD-II
ID-H32
OD-I
Radial mill/drill unit
ø185
ø650(max turning dia)Spindlecenter
65
265 30210 210 90
ø220
ø220
ø135
ø160
ø205
ø180
ø190
ø18055
65
60
25
85
85
ø190
ø175ø175
ø215
112
110
80 35340
235 235
30115
73
67
ø235ø205
ø225
ø254
ø254
ø254
ø220
ø210
ø210
ø210
ø240
ø350 (max turning dia)
ø750(max turning dia)
Spindlecenter
X-axis travel 255
ø205
ø254
ø215
ø195
ø185 ø185
ø240
ø65
ø65
ø155 ø160
ø350
(max turning dia)ø350 (max turning dia)
Spindlecenter
340 2529
110127 X-axis travel 255235 235
ø750(max turning dia)
73
ø200ø220
ø220
ø225 ø205
ø235
67
Hinge Scraper Magnetic scraper Hinge scraper (drum filter)
● Steel ● Castings ● Castings ● Steel, castings, nonferrous metal
● Magnetic scraper more effective for sludge disposal
● Easy maintenance ● Blade scrape
● General use ● Effective with sludge ● Not suited for nonferrous
metals
● Filtration of long and short chips and coolant
Magnet
Type
Application
Features
Shape
Note: Holders are for V16 only.Sleeves can also be used and V12 as well as LT200M.
*Can be used on left/right spindles by reversing mount
Note: Holders are used on both V16 and V12.Sleeves are common with LB3000EX
*Can be used on left/right spindles by reversing mount
14
■ LT2000 EX Working Ranges
■ 2-turretOD-I
■ 2-turretID
■ 2-turretAxial drill/mill unit
■ 2-turretRadial drill/mill unit
■ 3-turretOD-I
■ 3-turretRadial drill/mill unit
■ LT3000 EX Working Ranges
■ 2-turretOD-I
■ 2-turretID
■ 2-turretAxial drill/mill unit
■ 2-turretRadial drill/mill unit
■ 3-turretOD-I
■ 3-turretRadial drill/mill unit
700 (ZB travel) 59
30
30175
175
6525
730 (W travel)960 Distance between spindles (max)
230
Distance betweenspindles (min)
49
495 142
20
201
30
5 5142
211
700 (ZA travel) 21159
2525
37
16
8
16
8
25
65
20
35
37 20
5 (X
A tr
avel
)
205
(XB
trav
el)
700 (ZB travel)193
25
25
180
85
700 (ZA travel)
730 (W travel)
203
100 68 68 8
960 Distance between spindles (max)
57
20
61.4 MAX 10030
2525
37
16
8
16
8
28
10068 688 MAX 100
20
35
35
37
28
180
205
(XA
trav
el)
85
205
(XB
trav
el)
700 (ZB travel)125
60
168
37
37
700 (ZA travel)
730 (W travel)
135
960 Distance between spindles (max)
25
30
20
20
35
205
(XA
trav
el)
6020
5 (X
B tr
avel
)
168
MA
X 5
5
MAX ø16
ø43
12535
25MA
X 55
MAX ø16
ø43
700 (ZB travel)22
5
5
200
200
65
6516
837
37
700 (ZA travel)
730 (W travel)
238
65.5103
960 Distance between spindles (max)
20
25
30
35
20
205
(XA
trav
el)
168
205
(XB
trav
el)
MAX 65
MA
X ø
16
MAX
ø16
103MAX 65
238
22
25
30
5 5142
211
65
3017
5168
3017
5
730 (ZB travel)201
400 (ZA travel)
760 (W travel)
400 (ZC travel)
990 Distance between spindles (max)
20
20
5949
35
49 59
730125 135
1215 121 5
205
(XB
trav
el)
205
(XA
trav
el)
3017
5
65 25
205
(XC
trav
el)
6525
37
168
168
37
3025
37 3716
8
25
30
20
20
6060
205
(XC
trav
el)
205
(XB
trav
el)
6020
5 (X
A tr
avel
)
MA
X 5
5
MAX ø16
MAX ø16
ø43
ø43
3525
MAX 5
5
730 (ZB travel)125
760 (W travel)990 Distance between spindles (max)
35
730125 135
168
168
3737
400 (ZA travel)
400 (ZC travel)
13
152135
7
7 752
142
ø210
930 (ZA travel)
255
(XA
trav
el)
255
(XB
trav
el)
930 (ZB travel)
940 (W travel)
1,200 Distance between spindles (max)
235
80 3522
530
225
235
235
8035
30
218
1527 7
52
52
7
ø210
142135
930 (ZB travel)
940 (W travel)
1,200 Distance between spindles (max)
201
142142135
65.8
66 66
135
7
69
ø210
930 (ZA travel)
255
(XA
trav
el)
255
(XB
trav
el)
235
110
230
25
230
235
110
235
25
79
ø210
69
MAX120 MAX120
66 66 MAX120 MAX120
7
930 (ZB travel)
940 (W travel)
1,200 Distance between spindles (max)
135
142
1427
ø210
930 (ZA travel)
255
(XA
trav
el)
255
(XB
trav
el)
235
235
67
67
235
18
18
135
ø210
7 135
200
MAX ø20
MAX
73
MIN
18
MAX ø20
MAX
73
MIN
18
65.8
MA
X ø
20
930 (ZB travel)
940 (W travel)
1,200 Distance between spindles (max)
29
142
106
106
142
186
7135
29
ø210
930 (ZA travel)
255
(XA
trav
el)
255
(XB
trav
el)
235
9025
05
250
235
9023
55 ø2
10
241
MAX 80
7 135
200
MA
X ø2
0
MAX80
52930 (ZB travel)
940 (W travel)
1,200 Distance between spindles (max)
218
142
ø210
930 (min295)
480 (ZA travel)
135
13652
7
480 (ZC travel)
135
ø210
255
(XA
trav
el)
235
35 80
200
225
22530
255
(XC
trav
el)
255
(XB
trav
el)
235
235
35
35
80
80
3030
77
MAX ø20
MAX ø20
MA
X 7
3 M
IN 1
8
930 (ZB travel)
940 (W travel)
1,200 Distance between spindles (max)
135
142
135
930 (min295)
480 (ZA travel)
135
480 (ZC travel)
135
ø210
ø210 255
(XA
trav
el)
235
67
200
18
235
235
255
(XC
trav
el)
18
18
235
235
67
6725
5 (X
B tr
avel
)
230
Distance betweenspindles (min)
230
Distance betweenspindles (min)
230
Distance betweenspindles (min)
230
Distance betweenspindles (min)
230
Distance betweenspindles (min)
260
Distance betweenspindles (min)
260
Distance betweenspindles (min)
260
Distance betweenspindles (min)
260
Distance betweenspindles (min)
260
Distance betweenspindles (min)
260
Distance betweenspindles (min)
External Input/Output and Communication Functions
Additional RS-232-C channel2 channels (Std 1 channel)
DNC link DNC-T3
DNC-C/Ethernet
DNC-DT
USB (additional) 2 additional ports possible
Automation/Untended Operation
Auto power shutoff MO2, alarm
Warmup function (by calendar timer)
Tool retract cycle
External A (pushbutton) 8 typesprogram B (rotary switch) 8 typesselections
C1 (digital switch) BCD, 2-digit
C2 (external input) BCD, 4-digit
Okuma loader (OGL) interface
Third party robot Type B (machine)and loader Type C (robot and loader)interface *3
Type D
Type E
Bar feeders Bar feeder
Interface only
Cycle time Operation time reductionreduction *3
High-Speed/High-Accuracy Functions
1/10 µm control *3
Pitch error compensation
AbsoScale detection *3
Hi-Cut Pro
Super-NURBS Linear axis
Linear axis + rotary axis
Other Functions
Collision Avoidance System (CAS)
One-Touch Spreadsheet
Machining Navi L-g
Harmonic spindle speed control (HSSC)
Spindle dead-slow cutting
Spindle speed setting
Y axis height correction function
Manual cutting feed
Spindle power peak cutting
Short circuit breaker
External M signals [2 sets, 4 sets, 8 sets, ( )]
Edit interlock
OSP-VPS (virus protection system)
New Operations
Advanced One-Touch IGF-L (Real 3-D Simulation included)
Programming
Circular threading
Program notes
User task 2 I/O variables, 8 ea
Work coordinate 10 setssystem select 50 sets
100 sets
Tool Tool compensation 64 sets compensation Tool compensation 96 sets (32 sets Std)
Tool compensation 200 sets
Tool compensation 999 sets
Common variables 1,000 sets (Std: 200 sets)
Thread matching (spindle orientation required)
Threading slide hold (G34, G35)
Variable spindle speed threading (VSST)
Inverse time feed
Spindle synchronized tapping (rigid tapping)
Milling machine Coordinate convertspecs Profile generate
Flat turning
Coordinate calculate (w/NYCL commands) *2
Shift, rotate, copy coordinates
Helical cutting (within 360 degrees)
Monitoring
Real 3-D simulation
Cycle time over check
Load monitor (spindle, feed axis)
Load monitor no-load detection (load monitor ordered)
Tool life management
Tool life warning
Operation end buzzer
Chucking miss detection
Work counters Count only
Cycle stop
Start disabled
Hour meters Power ON
Spindle rotation
NC operating
NC operation monitor (counter, totaling)
NC work counter (stops at full count with alarm)
Status indicator (triple lamp) Type C [Type A, Type B]
Measuring
In-process work gauging
Z-axis automatic zero offset by touch sensor
C-axis automatic zero offset by touch sensor
Y-axis gauging
Gauge data output File output
Post-process Set levels (5-level, 7-level)work gauging BCDinterface
RS-232-C (dedicated channel)
Touch setter [M, A]
15 16
■ Standard SpecificationsBasic Specs
Operations
Com / Net
High speed/accuracy
Control
Position feedback
Min / Max inputs
Feed
Spindle control
Tool compensation
Display
Self-diagnostics
Program capacity
Easy Operation
Programing
Machineoperations
MacMan
Turning: X, Z simultaneous 2-axis + 2-axis, Multitasking: X, Z, C simultaneous 3-axis + 3-axis
OSP full range absolute position feedback (zero point return not required)
8-digit decimal, ±99999.999 to 0.001 mm (±3937.0078 to 0.0001 in.), 0.001°
Decimal:1 µm, 10 µm, 1 mm (0.0001,1 in.) (1º, 0.01º, 0.001º)
Override: 0 to 200%
Direct spindle speed commands (S4) override 50 to 200%
Constant cutting speed, optimum turning speed designate
Tool selection: 32 sets, tool offset: 32 sets
15-inch color display operational panel, touch panel
Automatic diagnostics and display of program, operation, machine, and NC system problems
Program storage: 2 GB, operation buffer: 2 MB
“Single-mode operation” to complete a series of operations
Advanced operation panel/graphics facilitate smooth machine control
Program management, edit, multitasking, scheduled programs, fixed cycles, special fixed cycles, tool nose R compensation, M-spindle synchronized tapping,
fixed drilling cycles, arithmetic functions, logic statements, trig functions, variables, branch statements, auto programming (LAP4), programming help
MDI, manual (rapid traverse, manual cutting feed, pulse handle), load meter, operations help, alarm help, sequence return, manual interrupt & auto return,
threading slide hold, data I/O, chuck open/close during spindle rotation, spindle orientation (electric)
Machining Management: machining results, machine utilization, fault data compile & report, external output
USB ports, Ethernet, RS232C interface (1 channel)
Hi-G control, TAS-C (Thermal Active Stabilizer–Construction)
■ Optional Specifications
ItemKit Specs *1 NML 3D OTM
E D E D E D
Included in machine specs
Included in machine specs
Included in machine specs
*1. NML: Normal, 3D: Real 3D simulation, OTM: One-Touch M, E: Economy, D: Deluxe
*2. Available only when MY specs selected.
*3. Engineering discussions required.
*2
Kit Specs *1 NML 3D OTM
DE D E D E
Included in machine specs
Including loader specs
Item
Okuma’s CNC OSP-P300L
Satisfaction from complete control of a machine tool
■ Setup operations
■ Trial/continuous cuts■ Programming ■ Tool preparations
Collision Avoidance System (Optional)
Collision prevention
Machining Navi L-g (Optional)
Cutting condition search for turning
■ World’s first “Collision-Free Machine” ■ Chatter-free applications for lathes
Virtual machine (collision check)
CAS prevents collisions in automatic or manual mode, providing risk-free protection for the machine and great confidence for the operator.
Chatter in a lathe can be suppressed by changing spindle speeds to the ideal amplitude and wave cycle—without decreasing spindle speed.
Fine tuning zone
Chatter graphed
As a “machine & control” builder, Okuma makes further strides in machine tool manufacturing with
this superb, control featuring “Easy Operation”. Okuma took a close look at the way machinists
actually operate machine tools, to help them create smoother and more effective ways of producing
parts. Novice operators as well as professional machinists get complete control—and satisfaction.
Moreover, what you want to see and do conveniently come together in a “single-mode operation”.
First, select one of three operation screens.
Then simply touch the screen or press a function key to see and do your job.
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●
●
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17 18
TWIN STAR LT3000 EXDimensional/Installation Drawings
MY specs
TWIN STAR LT2000 EXDimensional/Installation Drawings
MY specs
1,681 (66.18) 1,200 (47.24) 350(13.78)
514(20.24)
856
(33.
7)1,
475
(58.
07)
570
(22.
44)
2,33
1 (9
1.77
)59
9(2
3.58
)
1,88
1(7
4.06
)69
7(2
7.44
)
1st turret
2nd turret
L headstock
Spindle coolerHydraulicunit
R headstockCoolant tank/chip conveyorremoval space
450
(17.
72)
CNC
2,464 (97.13)
415(16.34)
1,060(41.74)
605(23.82)
1,20
0 (4
7.24
)52
4 (2
0.63
)1,
241
(48.
86)
2,09
0 (8
2.28
)
450(17.72)
2,28
5 (8
9.96
)
1,475 (58.07)989 (39.06)
3,745 (147.44)600
(23.62)Maintenance
space
3,231 (127.20)514
(21.26) 238
2,26
0 (8
8.89
)
Operation panel
Spindlecenter
Side caonveyor,type L
Chip bucket(Optional)
(Optional)
1,681 (66.18) 1,200(47.24)
350(13.78)
514(20.24)
856
(33.
7)1,
475
(58.
07)
570
(22.
44)
2,33
1 (9
1.77
)
1stturret
2nd turret
Lheadstock
Spindle coolerHydraulic unit
R headstockCoolant tank/chip conveyorremoval space
1,88
1(7
4.06
)69
7(2
7.44
)45
0(1
7.72
)
CNC
Chip bucket
3,231 514(20.24)
540(21.26)
212(8.35)
238(9.37)3,745 (147.44)
3,983 (156.81)600
(23.62)Maintenance
space
2,26
0 (8
8.98
)
Operation panel
Spindlecenter
791
(31.
14)
Side caonveyor,type L
(Optional)
(Optional)
1,20
0 (4
7.24
)
1,24
1 (4
8.86
)52
4 (2
0.63
)
450(17.72)
989 (38.94) 1,475 (58.07)
2,09
0 (8
2.28
)
2,30
1 (9
0.59
)
605(23.82)
1,060(41.74)
415(16.34)
2,464 (97.13)
1st turret
2nd turret
3rd turret
Lheadstock
R headstock
Operation panel
Hydraulic unit Spindle cooler
Coolant pump
1,715 (67.52)2,279 (89.72) 635 (25)
1,66
0 (6
5.35
)95
4 (3
7.56
)
CNC
(Door opening)
1,21
0(4
7.64
)45
0(1
7.72
)2,
614
(102
.91)
699
(27.
52)
972 (38.27)57
1,082(42.60)
722
(28.
43)
Lube unit
Maintenancespace
Side con-veyor L type
(Optional)
Chip bucket(Optional)
700
4,5044,629 (182.24) 714,700 (185.04)
600(23.62)
3,994106
600
598 108
790
Spindlecenter
Coolant tankremoval space
1,090 (42.91) 1,660 (65.35)2,750 (108.27)
435(17.13)
2,65
0 (1
04.3
3)
1,80
0 (7
0.87
)50
5(1
9.88
)34
5(1
3.58
)19
(0.7
5)
2,66
9 (1
05.0
8)
1,35
0(5
3.15
)
840250
1,07
0(4
2.13
)24
9(9
.8)
1st turret
2nd turret
Lheadstock
R headstock
Hydraulic unit Spindle cooler
Coolant pump1,325(52.17)
2,279 (89.72) 635(25)
390(15.35)
1,66
0 (6
5.35
)95
4 (3
7.56
)
CNC
(Door opening)
1,21
0(4
7.64
)45
0(1
7.72
)2,
614
(102
.91)
699
(27.
52)
972 (38.27)57
1,082(42.60)
722
(28.
43)
Lube unit
Maintenancespace
Side con-veyor L type
(Optional)
Chip bucket(Optional)
700
4,5044,629 (182.24) 714,700 (185.04)
600(23.62)
3,994106
600
598 108
790
Operation panel
Spindlecenter
Coolant tankremoval space
1,090 (42.91) 1,660 (65.35)2,750 (108.27)
435(17.13)
2,65
0 (1
04.3
3)
1,80
0 (7
0.87
)50
5(1
9.88
)34
5(1
3.58
)19
(0.7
5)
2,66
9 (1
05.0
8)
1,35
0(5
3.15
)
840250
1,07
0(4
2.13
)24
9(9
.8)
Turning Centers w
ith Twin Spindles
OKUMA Corporation, OGUCHI-CHO, NIWA-GUN, AICHI 480-0193, JAPAN • TEL (0587) 95-7825 • FAX (0587) 95-6074 � The specifications, illustrations, and descriptions in this brochure vary in different markets and are subject to change without notice. Consult your local Okuma representative for specific end-user requirements.
When using Okuma products, always read the safety precautionsmentioned in the instruction manual and attached to the product.
This product is subject to the Japanese government Foreign Exchange and Foreign Trade Control Act with regard to security controlled items; whereby Okuma Corporation should be notified prior to its shipment to another country.
� The sp
ecifications, illustrations, and d
escriptions in this b
rochure vary in different m
arkets and
are subject to change w
ithout notice.P
ub.N
o.TWIN
STA
R LT E
X series-E
-(1a)-300 (Ap
r 2015)
When using O
kuma p
roducts, alw
ays read the safety p
recautionsm
entioned in the instruction m
anual and attached
to the prod
uct.
To protect your factory and equipment from fire and assure continued safe operation, observe the following fire safety precautions whenever you operate machinery. Whenever possible, avoid the use of oil-based coolants for cutting operations. Sparks caused by hot chips, tool friction, and grinding can cause fires. Always observe the following safety measures to ensure safe operation when machining flammable materials or when performing dry machining.
Before machining any material designated by law as a flammable substance, e.g., plastic, rubber, wood, acquaint yourself with the special characteristics of the material in terms of fire prevention, and observe the precautions given in (2) above to ensure safe operation. Example: When machining magnesium, there is a danger that magnesium chips and water-soluble coolants will react to produce hydrogen gas, resulting in an explosive fire if any chip should ignite.
Dry machining is a fire hazard because workpieces, tools, and chips are not cooled. To ensure safe operation, do not place any flammable objects near the machine and do not allow chips to over accumulate. In addition, be sure to check cutting tools to make sure of their service life and the condition of the tool edge, and observe the precautions regarding oil-based coolants given in (2) above.
(1) Use nonflammable cutting fluid coolant. (2) When the use of an oil-based coolant is unavoidable:
Before you begin machining, check cutting tools to make sure of their service life and the condition of the tool edge, and choose cutting conditions that will not cause a fire. Periodically clean the coolant filter to maintain sufficient coolant discharge, and frequently verify that coolant is discharging normally. Take measures to control the outbreak of fire: Place a fire extinguisher near the machine, have an operator constantly monitor operation, and install an automatic fire extinguishing system. Do not place flammable materials near the machine.Do not allow chips to over accumulate. Periodically clean the inside of the machine and the area surrounding it.Check that the machine is operating normally. Never run the machine unattended. Since an automatic fire extinguishing system and other peripherals are needed for grinding operations, please let us know as soon as possible if you plan to perform such operations.
Fire Safety Precautions
1. Oil-based coolant
2. Precautions regarding machining of potentially flammable materials
3. Dry machining
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