Features of CNC Rotary Tables
YUKIWA SEIKO CNC Rotary Tables and Tilting Rotary Tables are compact, and have a number of features including apatented waterproof mechanism (auto-purge), low driving noise, and easy maintenance, which have earned a
distinguished reputation from our customers.

CNC Rotary Tables

Direct Drive CNC Rotary Tables
Low-cost, high-performance models!

High-speed Rotation and Powerful Clamping Model !

JNC series

DRA series

Best-selling models for small MCs have been upgraded.

JNC140・170･200･250●The compact size and light-weight secures a wider working space,being now a standard table
for the machining center.
●Standard equipped auto air purging system(PAT.)
for a superior water protection.

Realizing High-speed Rotation with Direct Drive MotorDRA170●No Backlash for direct connecting to high-resolution encoder. No gear, no need for lubrication,and wearing.
Positioning precisely in the transition of nomal/reverse rotation.
●Strong clamping force of 20 times of the motor torque prevents vibrations during the cuttingoperations.
●Auto-Purge system hermetically sealed structure included as standard.
This system will increase the protection against volume of coolant.

High-speed indexing models of JNC series!
Productivity is improved by high-speed indexing.

JNCH series

JNCH140・170・200・250

CNC Tilting Rotary Tables
New type of compact tilting tables!

●High-speed rotary tables to shorten cycle time.

Compact design for installation in small machine tools

TNT series

TNT100･130･180●The compact body, most suitably applicable for small-sized machining center.
●The tilting movement does not move the motor cover nor the cable, enabling easier designingof the jigs.
●Standard equipped auto air-purging system(PAT.),protecting water penetration.

High-grade, high-performance models!

The functions of high-class models are packed in its compact body.

YNC series

YNC170･200･250●Highest rigidity in this class, with large-size bearing support.
●Highest clamping torque in this class, with powerful clamp system.
●Standard equipped auto air purging system(PAT.)
for a superior water protection.

Higher clamping torque models of YNC series!
Higher rigidity than YNC series.

YNCP series

YNCP170・200・250●Highest clamping torque in this class, with built-in air-hydraulic unit.
1,050N･m for YNCP250 (about 1.4 times higher than YNC250).

Standard of compact tilting tables!
Large tilting angle for automated lines

TRB/TRBH series

TRB(H)140●Inclination of the tilting axis to ±110°enables widening range of machining.
●Surface of the rotating tables matches in height to the center of the tilting axis, making the work
programming easier.
●Auto air-purging(PAT.), available as special accessory, will enhance water protection.

Explanation on Model Number

Specifications of CNC Rotary Tables
JNC140L
JNCH140L

JNC170L
JNCH170L

JNC200L
JNCH200LJNC250L
JNCH250L

YNC170LYNCP170L

YNC200LYNCP200LYNC250LYNCP250L

Table Diameter (mm)

140

170

200

250

170

200

250

Center Height (mm)

110

135

160

200

135160200

Table Through Hole Dia. (mm)

2845

56

72

45

56

72

Clamp System

Pneumatic pressure0.5 to 0.7MPa（Pneumatic pressure0.3 to 0.5MPa）

Pneumatic pressure (0.5 to 0.7 MPa)
120

230

450

30 seconds or less 30 seconds or less

40 seconds or lessIndexing Accuracy (cumulative)

260（550）650

540（850）840（1,050）25 seconds or less 20 seconds or less

Vertical Use

0.25（0.125）

0.5（0.25）

1.0（0.5）

2.0（1.0）

Horizontal Use

0.125（0.06）

0.25（0.125）

0.5（0.25）

1.0（0.5）

0.25

0.5

1.0

Total Reduction Ratio

1/72（1/36）

1/90（1/45）

1/90（1/45）

1/90（1/45）

1/90

1/90

1/90

Maximum Rotating Speed（min−1）

41.6（83.3）

33.3（66.6）

33.3（66.6）

33.3（66.6）

33.3

33.3

33.3

2738

58

86

43

69114

●BTC7、BTC37、BTC57：TC-22B
（-O）

●BQT5
：TC-R2A●BTC6、BTC36、BTC56：TC-32B FT●BTC8、BTC38：TC-S2C（-O）●BTC9、BTC39、BTC59：TC-32BN FT●BTC1A、BTC3A：TC-S2D（-O、-S）●BQT4、BQT34：TC-32A●BQT6、BQT36、BQT56：TC-32B QT●BQT8：TC-31B●BQT9、
BQT39、BQT59：TC-32BN QT［View of Layout for Mounting］

DRA170Pneumatic pressure（0.3 to 1MPa）

Allowable Rotating Torque（N・m）

9

Product Weight（kg）

69

Supply Pressure（MPa）

00.3

0.5

1Clamp Torque (N·m)

30

200

320

480

Indexing Time30

Indexing Accuracy (cumulative)

Rotation Angle(degree)

45°

90°

180°

360°

Indexing Time(second)

0.44

0.52

0.62

0.78TNT100L

180

Specifications of CNC Tilting Rotary Tables
TNT130L

TNT180L

TRB(H)140L

Rotating Axis Tilting Axis Rotating Axis Tilting Axis Rotating Axis Tilting AxisRotating Axis
TRBTRBHTilting Axis

Table Diameter (mm)

100

̶

75

̶

180

̶

140

̶

Center Height (mm)

135

̶

145

̶

200

̶

215

̶

Table Through Hole Dia. (mm)

28

̶

2550

̶

28

̶

900

120

450

Pneumatic pressure (0.5 to 0.7 MPa)

Clamp System
200

320

270

12050060 seconds
Indexing Accuracy (cumulative) 35 seconds or less 40 seconds or less 30 seconds or less 40 seconds or less 30 seconds or less 45 seconds or less 40orseconds
less or less 90 seconds or less
1／72
1／120
1／72
1／120
1／72
1／120 1／72 1／36
1／90
Total Reduction Ratio
Maximum Rotating Speed (min−1)
Product Weight (kg)

41.6

25.0
80

41.6

25.0
72

450［700］
X-Axis stroke

41.6

25.0
185

41.6 83.3
129

33.3

［ ］：TC-S2A（B）-0

CNC Rotary Table Nodel No.

360
Y-Axis Stroke

0.22

480［700］
X-Axis stroke

Z-Axis Stroke

Allowable Inertia Moment（kg・㎡）

100 100200

Maximum Rotating Speed (min )117300［320］157−1600［800］
183

117

360
Y-Axis Stroke

Circumferential Load（N・m）

Table Through Hole Dia.（mm） Concentric locating hole dia. 40 H7 depth 10; Thru-hole dia. 40

600［800］183

100 100255

300［320］

Allowable Load Horizontal Load（N・m）

270

135

Z-Axis Stroke

Center Height (mm)TC-S2A, TC-S2A-0, TC-S2B, TC-S2B-S, TC-S2B-0

160
［140］

2,000

211.5

Vertical Load（N）

JNC140L-BTC3

170

Clamp Torque (N·m)

None:Except Europe
EU:For Europe(CE-Marking spec.)

Brother CNC Tapping Center Model No.

ModelDRA170

ModelArea): values of YNCP series.

Table Diameter (mm)Clamp System

BTC: For Tapping Center
BQT: For Quick table typeTapping Center

None: 2 Tables and 2 Amps
1: 1 Table and 1 Amp●BQT1B、
BQT3B：TC-R2B

Specifications of Direct Drive CNC Rotary Table
Model

3、4、5、6、7、8、9、1A：1N・m
33、34、36、37、38、39、3A、3B：3N・m
56、57、59：5N・m270(●BQT3:TC-31A、TC-31AN

Number of Rotary Tableand Amp installed for BQT

160［140］): values of JNCH series.

2.0●BTC3、
BTC33：TC-S2B（-S、-O）、TC-22A（-O）

Rated Torqueof Servo Motor(BTC3）219(1.0Table Diameter（mm）

220

Product Weight（kg）

0.5

Name of CNC
Rotary Table Series

L:Left handed
R:Right handed(Motor's position viewedfrom the front side)

135

Allowable InertiaMoment（kg・㎡）

JNC 170 L - BQT 34 - 1 - EU(BTC33）
295

Clamp Torque (N·m) (at 0.5 MPa)

The model number indicates not only the table speciﬁcations but also the other pertaining speciﬁcations,such as, the terminal box, the ampliﬁer, and the cables.

YNC170L-BTC3/33

Model［ ］：TC-S2A（B）-0

Layout for Mounting