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


With 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)


With Y-axis control


With 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)


Drilling: ø30 carbide drillCutting speed: 150 m/minFeedrate: 0.15 mm/rev(Left spindle: First turret)


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.


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


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


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


Motor output VAC 22/15 kW (30 min/cont)


● LT2000 EX High output specification




● LT3000 EX Standard V16 turret


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 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


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"

Sp

ind

le m

otor

out

put

kW

Sp

ind

le t

orq

ue

N-m

Sp

ind

le t

orq

ue

N-m

Sp

ind

le t

orq

ue

N-m

Sp

ind

le t

orq

ue

N-m

Sp

ind

le t

orq

ue

N-m

Sp

ind

le t

orq

ue

N-m

Sp

ind

le m

otor

out

put

kW

Sp

ind

le m

otor

out

put

kW

Sp

ind

le m

otor

out

put

kW

Sp

ind

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


LT3000EX: 45 to 5,000 min-1


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



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


OD-II

ID-H32

OD-I


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)


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


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


■ LT3000 EX Working Ranges

■ 2-turretOD-I

■ 2-turretID

■ 2-turretAxial drill/mill unit


■ 3-turretOD-I


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


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


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)


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)


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)


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)


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)


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)


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


230


230


230


230


260


260


260


260


260


260


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



*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


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)


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)


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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Turning Centers with Twin Spindles - Bulmakmetal...

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