Cat.No.0069E014702N

WY-250

Super Mill

WY-250

NAKAMURA-TOMEPRECISION INDUSTRY CO.,LTD.

Super Mill

NAKAMURA-TOME PRECISION INDUSTRY CO., LTD.Netsuno 15, Hakusan city, Ishikawa, 920-2195 JapanPhone : 0761 93 1111 Fax : 0761 93 4312E-mail : nt-jpn@nakamura-tome.co.jp

http://www.nakamura-tome.co.jp

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Super MillWY-250

Turret-Type Multi-Tasking Turning Center.

Birth of Super Mill

D E B U T

Long-awaited Machine!

New Era of Multi-Tasking!

A machine featuring the fastest cycle-time ever!

1 2

Multi-Tasking Machine for ProductionFrom diversified small-lot production to mass production.

Innovative Milling System

Metal Removal Rate

336cm3/min168cm3/min×2

【Cutting conditions】

●Tool diameter：φ50mm

● Cutting Speed：235m/min

● Speed：1500min-1

● Feed：2.8mm/rev

● Depth：0.8mm

C h i p s t e l l y o u

Y-axes on Upper and

Lower TurretsY+YTwo Y-axes

Upper Y-axis Stroke

±50mm

Lower Y-axis Stroke

＋20mm・－50mm

WY-250

Super Mill

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WY-250

Super Mill

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High-rigidity turret combining turning and milling capabilities

100

200

10

1

0.1

1

10

0.1

10 100 1000 10000

Torque（N・m）

Output（kW）

Spindle speed（min-1）

180060002230

■Upper & Lower Milling Motors

7.5kW

40.0N・m (S2 5min. S3 15%）

16.0N・m (S1 CONT.）

3.7kW

7.5kW

40.0N・m (S2 5min. S3 15%）

16.0N・m (S1 CONT.）

3.7kW

M+MTwo Milling Motor

7.5kW 40N.mHigh-power, High-torque Milling Motors on Upper and Lower Turrets

Double Performance!

In addition to milling or drilling simultaneously with upper and lower turrets, improved chip-removal

capabilities contribute to drastically faster cycle times.

1000

2000

100

10

10

100

200

1

0.110 100 10000

Torque（N・m）

Output（kW）

Spindle speed（min-1）

501194

1250597

1000

■Right spindle motor（Low speed）

15kW15kW120N・m (S2 15min. S3 15%）

120N・m (S1 CONT.）

120N・m (S2 15min. S3 15%）

120N・m (S1 CONT.）7.5kW7.5kW

1000

2000

100

10

10

100

200

1

0.110 100 10000

Torque（N・m）

Output（kW）

Spindle speed（min-1）

45 1133378 637

1000

■Left spindle motor（Low speed）

15kW

225N・m (S2 15min. S3 15%）

189N・m (S1 CONT.）

225N・m (S2 15min. S3 15%）

189N・m (S1 CONT.）

7.5kW7.5kW

15kW

1000

2000

100

10

10

100

200

1

0.110 100 10000

Torque（N・m）

Output（kW）

Spindle speed（min-1）

501194

5000597

1000

■Right spindle motor（High speed）

15kW15kW120N・m (S2 30min. S3 60%）

120N・m (S1 CONT.）

120N・m (S2 30min. S3 60%）

120N・m (S1 CONT.） 11kW11kW

1000

2000

100

10

10

100

200

1

0.110 100 10000

Torque（N・m）

Output（kW）

Spindle speed（min-1）

45 4500

3400

568 785

1000

■Left spindle motor（High speed）

18.5kW225N・m (S2 15min. S3 15%）

185N・m (S1 CONT.）185N・m (S1 CONT.）

225N・m (S2 15min. S3 15%）

11kW

18.5kW

11kW

Double Performance!

Sp.+Sp.Two Spindles

Wide-range double-coil motors on left and right hand side spindles

Simultaneous machining with synchronized left and right spindles contribute to faster cycle times.

【Milling Tools】

Max. collet size- φ 20/AR32

Max. Face Milling Cutter diameter- φ 80mm

WY-250

Super Mill

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WY-250

Super Mill

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Major improvement of the milling-unit, resulting in higher rigidity　　Rigidity High-speed, High-rigidity, Compact Super Multi-Tasking Machine.

Phenomenal machining ability with the high-output (7.5KW)/ high-torque motor　　Motor Torque Max. 40Nm

■ New technology of

Super mill

High-output, High-torque Motor

Guide block support

Oil-mist for cooling and lubricating drive-gears

Larger gears are adopted

Larger diameter of driving shaft

Dia.20mm End mill

Metal Removal Rate 34cm3/min

● Surface speed:35m/min（557rpm）● Cutting depth:15mm● Feed:0.2mm/rev

Dia.63mm Face milling cutter

Metal Removal Rate 90cm3/min

● Surface speed:235m/min（1200rpm）● Cutting depth:2.5mm● Feed:0.7mm/rev

Dia.25mm High feed end mill

Metal Removal Rate 120cm3/min

● Surface speed:235m/min（3000rpm）● Cutting depth:0.8mm● Feed:2.0mm/rev

Dia.50mm Face milling cutter

Metal Removal Rate 148cm3/min

● Surface speed:235m/min（1500rpm）● Cutting depth:4mm● Feed:0.7mm/rev

■ Spindle support

mechanism

7.5/3.7kW 40N.m

Improved rigidity of the drive gears

C-axis disk brake

C-axis braking torque250N.m

WY-250

Super Mill

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WY-250

Super Mill

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Machine Structure High-Efficiency Multi-Tasking Machine Specifications Multi-point Machining High Productivity Became a Reality

● High-efficiency spindle motor

● Servo-driven turret

● Servo-controlled tailstock function

●Thermal compensation system

●Turning center function

● Machining center function

High-efficiency spindle motor

◆ Output：18.5/11kW 225N・m

◆ Speed：4500min-1

◆ Bar capacity：Ф65mm

◆ Spindle nose：A2-6

◆ Least input increment：0.001°

◆ C-axis rapid speed：600min-1

Left Spindle

Dodecagonal/ 24-station

◆Y-axis stroke：±50mm

◆ Milling motor power：7.5/3.7kW、40/16N・m

◆ Milling motor speed：6000min-1

◆ Servo-driven turret

Upper Turret

Control

FANUC

31i-A

Spindle speed

L : 4500min-1

R : 5000min-1

Number of tool stations

Dodecagonal/

24-station

Milling Motor

7.5/3.7kW

6000min-1

Turning

Milling

Distance between

centers

870mm

Max. turning

diameter

225mm

Max turning

length

580mm

Bar capacity

L : 65mm

R : 51mm

Y-axis function

Upper : ±50mm

Lower : -50mm/+20mm

A wide variety of parts can be machined from bars,

shafts, forgings or castings.

The highest productivity can be achieved with the

newest technology in multi-tasking,

all in a compact floor space.

Upper/ lower simultaneous Y-axis

milling on the left hand side

Upper/ lower simultaneous Y-axis

milling on the right hand side

Upper-left / lower-Right

turning operation

Upper-left/ lower-right

radial milling operation

Upper-right/ lower-left

axial milling operation

Transfer operation

One-hit Ma

chining!

High-efficiency spindle motor

◆ Output：15/11kW 120N・m

◆ Speed：5000min-1

◆ Bar capacity：Ф51mm

◆ Spindle nose：A2-5

◆ Least input increment：0.001°

◆ C-axis rapid speed：600min-1

Right Spindle

Spindle Motors

L : 18.5/11 kW

R : 15/11 kW

L/RChucks

L : 8"/210mm

R : 6"/165mm

Dodecagonal/ 24-station

◆Y-axis stroke -50, +20mm

◆ Milling motor power：7.5/3.7kW、40/16N・m

◆ Milling motor speed：6000min-1

◆ Servo-driven turret

Lower Turret

Servo drive

B-axis

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Necessary functions for multi-tasking are offered as standard features

WY-250

Super Mill

WY-250

Super Mill

NT Nurse Ⅱ

"NT-Nurse II", "NT Work Navigator" and "Overload

detection/ Airbag" were developed to facilitate

programming and set-up, to reduce fixture costs

of complex parts, and to reduce production

stops.

Less Fixtures! Less Set-up! Less Skills!

ACTIVE SAFETY

N a k a m u r a - T o m e S a f e t y T e c h n o l o g y

Overload detection* PASSIVE SAFETY

● Avoid a crash before it

happens!

Material recognition function (G310/

G312) can be used not only to avoid

collisions, but also to optimize the

face turning process for forgings that

have different lengths. In addition, it

is also useful for part-loading status

confirmation, machining datum shift,

and distinguishing different parts.

● Fixtures no longer necessary

Parts are getting more and more complex.

It is necessary to recognize irregular raw

part geometry before machining.Coordinate

recognition of raw part geometry, which is an

essential tool for milling, can be realized with less

cost, less labor and more ease.The measurement

tool is a round bar, whose contact with the part

triggers the coordinate values to be recorded in

the CNC control. This is possible thanks to torque

control technology　of servo motors. In addition

to eliminating the need for highly complex fixtures

for chucks and stocker pallets, the cost of

positioning parts can be dramatically reduced.

● All-in-one Software package!

NT-Nurse is software that provides the

operator with user-friendly environment

for operation, programming, and

production on the machine. Among vital

features are coordinate recognition (a

must for multi-tasking), direct chucking

to prevent positioning error during

transfer, and perfect synchronization of

the left and right hand spindles. Other

features include the load monitor for

detecting tool breakage and tool wear,

tool life management, operation condition

monitoring, in addition to many other

features to simply programming, set up,

operation, and production, all offered in

one single package.

● A security feature to rely on

when the worse happens

When unavoidable human error results

in a collision, the servo drive detects

overload and drastically reduces the

impact on the machine by reversing

the slide movement direction within

less than 8 milliseconds.

In addition to minimizing damage

of the first impact*, fears that the

tool will move to the next program

block and cause a second impact,

are reduced to zero. This standard

feature is available on the X, Z, Y, C

and B-Axes.

Not available

available

* This feature does not mean zero impact.

Arbitrary Axis Torque

Limit (G359)During cut off and part transfer from left

to right, closing the right hand side chuck

may cause overload on the right hand

spindle servo axis (B2-Axis), resulting

in a servo alarm. By controlling the B2-

Axis motor torque in a range between

20 and 100%, this feature prevents the

servo motor thrust force from exceeding

a certain value, by slightly moving the

B2-axis when it is subjected to a certain

load, thus preventing cut-off tool insert

breakage and overload servo alarms.

Deep Hole Rigid Tapping CycleStep feed rigid tapping cycle is useful for

difficult-to-machine materials and deep

holes. Regarding the tapping tool retract

amount, it is possible to choose between

two patterns.

Less Control LimitationsContrary to previous control limitations,

rigid tapping and polygon machining (option)

are now possible on either spindle with

upper or lower turret. Rigid tapping is a

standard feature.

●NT-Manual guide i

●Program storage length　320m＋320m

●Program registered number 　250＋250

●Tool offset pairs 99

●10.4 Inch color display LCD

●Direct drawing dimension input programming

●Fixed cycles（Ｇ90、Ｇ92、Ｇ94）

●Multiple repetitive cycles type Ⅰ（G70～G76）

●Multiple repetitive cycles typeⅡ

●Canned cycles for drilling（G80～G89）

●Synchronized mixture control

●Custom macro

●Additional custom macro common system variables

●DNC operation through memory card

　（Card is not included）

●Rigid tapping / spindle - milling

●Spindle synchronization

●NT-Work Navigator

●NT-Nurse

●Overload detection (Airbag)

DNC operation through

memory card.

Program can be executed

from a memory card that

is mounted in the provided

slot.

Various standard features, such as:

Program registered number 500 ＋ 500

Program storage length 320m ＋ 320m

standard option

Program registered number 1000 ＋ 1000

Tool offset pairs 99pairs

Program registered number 250 ＋ 250

Program storage length 640m ＋ 640m Program

storage length 1280m ＋ 1280m

Operator full support through easy operation and reliability

Index OverrideTurret speed can be adjusted with the

feed override rotary switch from 0 to

100% during indexing in automatic or

manual mode. This can be used during

fully automatic operation to reduce turret

speed or even bring it to a halt when

necessary.

Jump Programming（G411）For machines equipped with a gantry loader

or a bar feeder, restarting operation after

an interruption, is significantly improved.

Even if the operator has to stop and reset

the machine in the middle of automatic

cycle, there is no need to remove all the

parts from the chucks or gantry hands

to restart operation. The part status

displayed on the NT Nurse screen, is used

to restart the program, which depending on

part machining condition (raw, half-finished

or finished part), jumps to the appropriate

program block and re-starts from there.

Thanks to this feature, programming of

machines with a gantry loader has become

drastically simplified, eliminating the need to

divide each machining program into several

sub-programs.

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WY-250

Super Mill

WY-250

Super Mill

These are part of 24 functions.

A machine management feature, that contributes to drastic reduction of set-up time.NT-Nurse provides a user-friendly environment to achieve the best production results. Among NT Nurse features are the Load Monitor for monitoring tool

breakage and tool wear, the Soft Work Pusher for accurate parts transfer, as well as several other features to prevent errors and facilitate production.

The NT Nurse with its user-friendly features

●Machining process (conversational) function・Complex machining processes created with minimum key strokes

・Best guidance for Nakamura-Tome multitasking machines

・Smooth programming without confusion

A programming system for creating NC programs (ISO/EIA G-code programs) easily. Among its features are: creating machining

cycles (conversational function), cutting, copying, pasting and moving already-programmed machining processes, setting waiting

M-codes, as well as simulating NC programs using tool path or solid models.

●Process editing functionA function that automatically recognizes and extracts the name and order of all machining

processes, then displays them in a table layout. Machining processes can be moved, copied

or swapped easily. In addition, waiting M-codes can be added with the click of a button.

●Fixed form function・Over 600 fixed forms are now standard (10 times more than before)

・Fixed forms can be easily selected from a menu.

・Customer-made programs can be registered.

■ Separate display based on Spindle and Turret

■ Displayed in a clear layout

■ Program Display

Waiting M-code line-up function

Programming time Number of key touch

Before BeforeLuck-beiⅡ

Luck-beiⅡ

60%reduced

50%reduced

Luck-bei II NT Manual Guide i

Menu display Operation condition display Alarm display

Tool life(Spare tool call-up) Tool counter Alarm history display

Offset history Load monitor Air cut

Ecology Setting Quick offset input Work-piece statement displayDisplay for machines with Gantry Loader.

Guided programming of NT Nurse and NT Work Navigator functions is also possible through the conversational function.

■ Work Navigator programming screen ■ Soft work pusher programming screen ■ Soft quill pusher programming screen

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WY-250

Super Mill

WY-250

Super Mill

E V O L U T I O NE V O L U T I O N

Machine Specification Control Specification

● Safety specifications

Various safety devices such as interlocks, safety fences

for automatic loaders, and automatic fire extinguishers, are

available as options, which can be included in your purchase

package.

Please contact our local distributor or agent for your specific

requirements.

■ Capacity Max. turning diameter 215mm

Standard turning diameter 150mm

Distance between centers max.870mm ／ min.250mm

Max. turning length 580mm

Bar capacity L/R L : 65mm R : 51mm

Chuck size L : 210mm（8”） R : 165mm（6”）

■ Axis travel Slide travel (X1 / X2) 160.5mm/160mm

Slide travel (Z1 / Z2) 580/580mm

Slide travel (Y1 / Y2) ± 50mm/-50mm、+20mm

Slide travel (B2-axis) 620mm

Rapid feed X1 / X2 18 m/min

Rapid feed Z1 / Z2 36 m/min

Rapid feed B2 axis 36m/min

Rapid feed Y1 / Y2 10m/min

■ Left and Right spindles Spindle speed 4500min-1 5000min-1

Spindle speed range Stepless Stepless

Spindle nose A2-6 A2-5

Hole through spindle 80mm 63mm

I.D. of front bearing 110mm 90mm

Hole through draw tube 66mm 52mm

■ C-axis Least input increment 0.001°

Least command increment 0.001°

Rapid index speed 600min-1

Cutting feed rate 1〜 4800°/min

C-axis clamp Disk clamp

C-axis engagement time 1.5sec.

■ Upper/Lower turret Type of turret Dodecagonal drum turret

Number of Tool stations 24

Number of Indexing positions 24

Tool size (square shank) □ 25mm

Tool size (round shank) φ32mm

■ Driven tools Rotary system Individual rotation

Spindle speed 6000min-1 3600min-1 ※ 1

Spindle range Stepless

Number of driven-tool stations 12×2

Collet size AR32

Holder type and tool size

Straight holder φ2mm 〜φ20mm

Cross holder φ2mm 〜φ20mm

■ Drive motor power and torque L-spindle 18.5/11kW 225/185N・m

R-spindle 15/11kW 120/120N・m

Driven-tool spindles 7.5/3.7kW　40/16N・m

■ General Machine height 2395mm

Floor space 4436mm×2674mm

Floor space 4905mm×3331mm ※ 2

Machine weight 12000kg

■ Power source Power supply 69.2kVA ※ 3

Air supply 400L/min

※ 1 Some tool holders have a max.3,600min-1.※ 2 When with chip conveyor※ 3 Depends on equipped options and peripherals

■Items Control Type FANUC 31i-A 2-PATH

■ Controlled axes Controlled axes 9-axes

Simultaneously controlled axes 4-axes (Upper X, Z, C, Y) + 4 axes (Lower turret X, Z, C, Y, B2)

■Input command Least input increment X, Z, Y, B2: 0.001mm / 0.0001inch (diameter for X-axis), 0.001deg.

Least command increment X：0.0005mm, Z：0.001mm, C：0.001°, B2：0.001mm, Y:0.001mm

Max. programmable dimension ± 999999.999mm/± 39370.0787in, ± 999999.999°

Absolute / incremental programming X, Z, C, Y, B2 (absolute only for B1, B2) / U, W, V, H

Decimal input Available

Program code EIA / ISO automatic recognition

Inch / Metric conversion G20 / G21

Programmable data input G10

■ Feed function Cutting feed feed / min X 1～ 4800mm/min, 0.01～188inch/min

Z 1～ 4800mm/min, 0.01～188inch/min

　　 C : 1～ 4800degree/min

　　 B2 : 1～ 4800mm/min, 0.01～188in/min

feed/rev 0.0001～ 4800.0000mm/rev

0.000001～ 50,000000in/rev

Dwell G04

Feed per minute / Feed per revolution G98/G99 G98/G99

Thread cutting G32

Thread cutting retract Available

Continuous thread cutting Available

Variable lead threading G34

Handle feed Manual pulse generator 0.001/0.01/0.1mm, °(per pulse)

Automatic acceleration/ deceleration Available

Linear acceleration/ deceleration after cutting feed interpolation Available

Rapid feed override F0/25/100% (changeable to every 10% by switch)

Cutting feed-rate override 0～150% (each 10%)

AI contouring control I G5.1

■ Program memory Part program storage length 640m

Part program edit delete, insert, change

Program number search Available

Sequence number search Available

Address search Available

Number of registrable programs 500programs (Upper/Lower 250each)

Program storage memory backed up by battery

Multiple program simultaneous editing Available

DNC operation through memory card Available (Only one turret can access memory card at a time)

(not including memory card)

Extended part program editing Available

■ Operation and display Operation panel: Display 10.4"color LCD

　　　　　　 ：Keyboard Separate type MDI unit (standard keys)

■ Program support Circular interpolation R programming Available

Direct drawing dimension programming or Chamfering / Corner R Available (Direct drawing dimension programming is standard)

Canned cycle G90, G92, G94

Multiple repetitive canned cycle G70〜 G76

Multiple repetitive canned cycleⅡ Available

Canned cycle for drilling G80〜 G89

Synchronized mixture control Available (used for C axis control from Lower)

Sub program Available

Balance cut G68, G69

Custom macro Available

Addition to custom macro common variables Available (After addition, #100-#199, #500-#999)

Helical interpolation Available

Luck-beiⅡ Available

Abnormal Load detection Available

NT Work Navigator Available (not including contact bar)

NT NURSE AvailableMax. 6000min-1

Max. 3600min-1

G31410G31411Turning Holder（A）Forward

Turret Head

ロ25×120（ロ25.4×120）

N3170N3180Set ring（φ25.4）

N3171N3181Set ring

（φ31.75）

R2402R2402

R2401R2401

G31420G31421Turning Holder（A）Reverse

G31510G31511Turning Holder（A）Forward

G31520G31521Turning Holder（A）Reverse

G37410G37410Quick Turning（A）Holder（*1）

G37414G37414Quick Turning（B）Holder（*1）

G32410G32411Boring Holder（φ25.4）

G32416G32417Boring Holder（φ25.4）Coolant through type

G31430G31431Cut-off Holder Forward

G31440G31441Cut-off HolderReverse

G31414G31415Turning Holder（B）

G31514G31515Turning Holder（B）

G31470G31471Turning

Boring Holder（ロ19.05,φ25.4）

G31416G31417Double TurningHolder

（2-ロ19.05）

G32420G32421Boring Holder（φ31.75）

G32426G32427Boring Holder（φ31.75）Coolant through type

G32432G32433Double

Boring Holder（2-φ25.4）

ロ20×120（ロ19.05×120）

ロ20×120（ロ19.05×120）

ロ20×120（ロ19.05×120）

Capto Tool（C3）

ロ25×120（ロ25.4×120）

M2112（φ12）M2113（φ10）M2122（φ12.7）M2123（φ9.525）Tool holder

M2114（MT-1）M1115（MT-2）M2124（MT-1）M1125（MT-2）Drill socket

M2110（φ20）M2111（φ16）M2120（φ19.05）M2121（φ15.875）Round hole bush

HS125（MT-1）HS126（MT-2）HS127（MT-3）N2125（MT-1）N1126（MT-2）N1127（MT-3）Drill holder

N1150（φ20）N1151（φ25）M2885（0.75”/1.25”）M2886（0.5”/1.25”）M2887（0.625”/1.25”）Round hole bush

HS130（φ6）HS131（φ8）HS132（φ10）HS133（φ12）HS134（φ16）M2682（0.5”/1.25”）M2688（0.375”/1.25”）Tool holder

G31330Cross Holder (Std.)

（Collet MAX.φ20)

G31380Face MillCross Holder（Boss φ22)

G37330Quick ChangeCross Holder

（*1）（Capto C3)

G31338Coolant ThroughCross Holder（Collet MAX.φ20)

G31340Quad SpeedCross Holder（Collet type)

G31343Quad SpeedCross Holder

G31333Straght Holder

(Std.)（Collet MAX.φ20)

G31383Face Mill

Straight Holder（Boss φ22)

G31370Cross Holder（Collet MAX.φ20)

G31381Face MillCross Holder（Boss φ22)

G31373Straight Holder（Collet MAX.φ20)

G31384Face Mill

Straight Holder（Boss φ22)

G37333Quick ChangeStraight Holder

（*1）（Capto C3)

G31339Coolant ThroughStraight Holder（Collet MAX.φ20)

mminch

■Quick change tool holders are optionally available (Op. Sandvik Capto C3)■Straight holder, cross holder, OD/ID turning holders also optionally available.Note: AR20 Collets For Capto C3: Max. Diameter 13mmNote: (*1) For quick change holders, Capto C3 turret option is necessary

Tooling System

600

655

Transformer

Oil cooler

550

553

100

2395

1032

1275

2778

300

30050360

46543325870

15929 1010

1170

26781644650

S.LS

S.LS

S.LS S.LSS.LS

S.LS

S.LS

S.LS S.LS

S.LSS.LS

S.LS

S.LS

S.LS

Left SpindleA2-6

Right SpindleA2-5

Spindle center

Y2Center

435

2.5

130

136

130

2.5

2.5

2.5

2.5

50

170

385

385

385

170

2.5

2.5

2.5

2.5

2.5

54.5

2.5

2.5

100

2.5

2.52.5

2.52.5

2.5

435

2.5 2.5 2.5

2.3 99.7

100 90

100 90

2.5 2.52.5 2.5

2.52.5

100

870(Distance between spindles）

-290(Z1stroke）

620(B2stroke）

+50(Y1stroke） -50(Y1stroke）

-50(Y2stroke） +20(Y2stroke）

160.5（X1stroke）

165(X2stroke）

+290(Z1stroke）

-290(Z2stroke） +290(Z2stroke）

X1Referene pointZ1Referene point

Y1Referene point

X2Referene pointZ2Referene point

Floor Space Stroke Related