RCDRTCNC ROTARY TABLE

RCD, RT series
For Machining Center from Kitamura Machinery

The Ultimate
CNC Rotary Table
Zero-backlash Technology Delivers Unsurpassed Motion
The RollerDrive CNC is a rotary table designed to meet the requirements of machine tool manufacturers
for greater speed and accuracy. The RollerDrive—Sankyo's zero-backlash reducer—delivers accurate output
motion that stands up to external disturbances, unlike gearmotors or torque motors. It offers excellent
rotary positioning accuracy of 10 seconds or less, and can hold up to heavy cutting forces on hard steel.
The heavy-duty RollerDrive CNC has no internal part wear and no loss of accuracy over long-term use,thus eliminating the need for regular calibration or adjustments.

Theory of Operation of the RollerDrive
The RollerDrive uses the roller gear mechanism, one of the finest motion control mechanisms available.
The unit is constructed from an input shaft (the roller gear cam) and a turret (output shaft) fitted withroller followers. The roller followers are preloaded against a screw-like input shaft to completely eliminate
backlash. Our proprietary adjustment mechanism provides optimum preload.
The roller followers planted in the turret use internal roller bearings to transfer torque while rotating.
This ensures zero backlash, outstanding precision, and excellent efficiency without causing wear, whileproviding long-term consistent accuracy.

Exclusive zero-backlash construction
Preload mechanism
Turret(output)

Roller gear cam (input)

Cam followr

Features
Rolling contact
PreloadNo backlash (play).
High accuracy and good efficiency.
Preloadable for high rigidity.
Clampless machining reduces positioning time.
N o deterioration of accuracy over time,
initial accuracy is maintained for an extended period.

1

CNC

RCD series

No Maintenance and Excellent Price Performance
Consistent long-term accuracy withoutmaintenance.

Positioning Accuracy Aging Test
Requires maintenanceat regular intervals（arc sec）→

Accuracy is consistent with no maintenance even after 5
million operation cycles.

le

ab
yt
tar
ro le)
r
p
a
ge am
m (ex
or

20

10

MaintenanceRollerDrive

Drop in accuracy
over time

MaintenanceAccuracy declines over time. Requires maintenance to achieve
initial accuracy.

High Positioning Error Low

Worm gear models

30

WRollerDrive00

1 Million

2 Million 3 Million 4 Million
Operating cycles

5 Million→

Consistent long-term accuracy
without maintenance.

The RollerDrive graph is based on internal testing. (Center distance of test unit: 170)

Cost Comparison with a Worm Gear Rotary Table

Initial Cost versus Annual Maintenance Costs
200

Offers Long-term Use without MaintenanceWorm gear rotary table
Roller gear rotary table

Worm gear models
Maintenance costs occur once or twice a year to adjust thebacklash.

100

RollerDrive
Long-term use is possible without any mechanical maintenance.
Beats the cost of a worm gear even after adding annual
running costs to the initial investment cost. Price performancecontinues thereafter.

Cost becomes less than the worm
gear table in three years.

0

1

2

3

4

5

6

7 year①Worm gear rotary tables require maintenance twice a year.
②Assumes an annual running cost of 3% (oil changes, etc.) for both types.

(Based on internal calculations.)

Cost simulations are based on a table diameter of about 200 mm.

Shorter positioning time
Time comparison for 90° positioning

Conventional
worm gear

Unclamp(with clamp)

Conventional worm gear

Rotateworkpiece

Positioning time reduced toabout one third

Clamping using hydraulic pressure or air pressure is required tosuppress backlash.

RollerDrive
Zero backlash and high rigidity eliminate the need for clamping.
Compared to the worm gear type, positioning time is reduced toabout one third.

Clamp Processing

RotateProcessing
workpiece

RollerDrive(Based on in-house calculations)

Extended Accuracy
Compared against a worm gear for over 5
million indexes.
· Table size: Output table diameter: 170 mm· Load inertia: 0.5 kgm

2· Index angle: 36° (unidirectional)· Indexing time: 0.35sec

Results after 5 million indexes:
Item
Variation in positioning accuracy
Backlash (measured at R60)

Worm gear

RollerDrive

24.2sec

0.9sec18 μm (15 μm

33 μm)-

Variation in positioning accuracy [sec]Test conditions

Variation in positioning accuracy
30

Variation after 5 million indexes:

2520

24.2sec
Worm gear

15

RollerDrive10

0.9sec5
0

1 Million

2 Million

3 Million

4 Million

5 Million(Based on internal testing data.)2

Sizing and Product Code
CNC Rotary Table Selection Chart
CNC Rotary Table
1-axis

Mycenter-3XD

Mycenter-4XiD

Mycenter-3XG

RCD170○○○

RCD200

○

○

○

RT100

○

○

○

2-axis

Product Code [1-axis Series]
Rotary table1-

RCD170

2

3

B

1

2
Servo motor

ModelWith brake

RCD170

7

8

E
7

6

Motor mounting side

Connector position

Connector type

Table shape

F

R

Right

B

Rear

L

Left

S

Side

-

J

8

10

9

Tapped holes
T slotStandard / Custom

E

With MP scale

C

With clamp

J

Internal type

Blank

Standard

Blank

None

Blank

None

H

External type

X

Custom

Blank

None

Motor mounting side

1
2

10

Rotary joint*1, *2

Air / Hydraulic clamping

Flexible

X

Options
High-accuracy model*1, *2

1

5

9

C

6

F

4

RCD200-5

B

3

MITSUBISHI

B

4

R

Connector position*1 There is no hollow bore in the table when the MP scale(high-accuracy model) or rotary joint is installed.
*2 Simultaneous installation of MP scale (high-accuracy
model) and rotary joint is not supported.

Connector type / shape

Table shape

A
R

B

B

F
S : StraightL

A : Angled

1

RCD170
RCD200S
2

Support table
1

ST170A

-

2

1

-

J

2

4

Air / Hydraulic clamping

For RCD170 and RCD200

X

3

4

Options

Model
ST170A

3

C

Standard / Custom

Rotary joint

C

With clamp

J

Internal type

Blank

Standard

Blank

None

H

External type

X

Custom

Blank

None

Tail stock
1

TSS135

TSS135

3

-

2

3

M

-

R

4

X

1

2

3

4

Model

Type

Handle sideStandard / Custom

For RCD170 and RCD200

M

Manual

R

Right

Blank

Standard

L

Left

X

CustomA(8)M8×1.25, 14DP
(8)M8×1.25, 14DP

B
140
170

P6: Table with RCD dimensions

CNC

RCD series
Sizing and Product Code

Product Code [2-axis Series]
Rotary table
1

-

RT100

2

4

R

S

2

3

4

Servo motor

Motor mounting side

Connector position

MITSUBISHI

B

5

6

E

R

Right

S

Side

L

Left

B

Rear

Specifications / Dimensions

1
Model
RT100

-

3

B

J

5

6
Options
Rotary joint(Internal type)*2

High-accuracy model*1
With MP scale

J

Internal type

None

Blank

None

Mount clamps(Accessories)/ Main unit options

E
Blank

*1 There is no hollow bore in the table when the MP scale (high-accuracy model).
*2 Use the rotary joint for the air supply. It is not suitable for supplying hydraulic oil.

Motor mounting side

Connector position

S

L

B

Auxiliary equipment

R

Control methods for air /hydraulic table clamping
Layout dimensions
on machine
Precision Ratings
Precautions
4Specifications [1-axis Series]
Specifications

RCD170

Table diametermm

Table pilot bore diametermm

RCD200

Φ170

Φ200

Φ60 0

Φ60 0

+ 0.03+ 0.03

Center height

mm

135

135

Table T slot widthmm

12+ 0.0180

12+ 0.018
0Keyway widthmm

18- 00.011

18- 00.011

Air / Hydraulic

Air / Hydraulic

310

310

Clamp type(air 0.5 MPa, hydraulic 3.5 MPa)
*1N·m

Clamp torque

*2,*3

-4

2

×10 kg·m

Motor shaft equivalent inertia
Motor model (MITSUBISHI)
Minimum setting unitdeg
-1

Maximum table speed

min

Gear ratio

3.15

3.15

HG104BS-D74

HG104BS-D74

0.00010.0001

70

70

1/50

1/50

Indexing accuracy

arc.sec±15±15

Repeatability

arc.sec

8

8

kg

57

59

kg

70 (140)70 (140)

kg

140

140

N

21000

21000

N·m

310

310

Net weight
Upright position*4

Allowable
payloadW

Horizontal positionF

F×L
with clamping

W

F

F
L

Allowable load

Continuous holding torque*2,*5

N·m

321

321

Maximum output torque*2,*5,*6

N·m

544

544

N·m

1300

1300

F×L

F

Allowable workpiece inertia

L

kg·m2

1.1

1.1

Extenal rotary joint (number of ports)*7

6+1

6+1

Internal rotary joint (number of ports)*7

6

MP scale (high-accuracy model)*7

6
MPRZ-536A (MHI)MPI-536A (MHI)*1 Values for RCD170 and RCD200 are clamping torques when using an air hydro booster with a air pressure of 0.5 MPa as the supply source.
*2 Values for motor shaft equivalent inertia, and continuous / maximum holding torque are given for Mitsubishi motors. Please contact Sankyo if a different motor is to be used.
*3 Motor shaft equivalent inertia does not include the inertia of the motor shaft.
*4 The allowable payload value for upright mounting shown in brackets applies when a tail stock or support table is used.
*5 The continuous / maximum holding torque is the allowable load torque when a clamp is not used.
*6 Maximum holding torque should not exceed 10 seconds with 20% duty.
*7 Simultaneous use of the MP scale (high-accuracy model) and the rotary joint is not supported.

5

CNC

RCD series
Sizing and Product CodeDimensions [1-axis Series]
The drawings apply to the following specifications: R side motor mounting, rear connector.

▲

RCD170

φ33+ 00.025

φ35

20

12 + 00.018

101
13.7
217.5

110

5

21
40

20.5

Table T slot groove width

161.5

157

Mount clamps(Accessories)/ Main unit options

14 - 00.018

9

32.7

20

135

φ60+ 00.03

90

253

285

170

Specifications / Dimensions

95

239.6

341.2

91

441

Auxiliary equipment▲

RCD200

φ33+ 00.025

φ35

20
9

135

253

90

φ60+ 00.03

95

20 0

32.7

20

101
14 - 00.018

217.5

110
91

21

40

161.5

13.7

5

12 + 00.018

Control methods for air /hydraulic table clamping

285

239.6

20.5
Table T slot groove width

157

341.2

Layout dimensions
on machine

441

Precision Ratings
Precautions
6

Specifications [2-axis Series]
RT100
Specifications
Rotary axis

Tilt axis

Tilting angle

deg-20 ~ +120

Table diameter

mm

Φ100

Table pilot bore diameter

mm

Φ40 0

Center height (90 degrees)

mm

132

Table surface height (0 degree)

mm

197

Keyway widthmm018-0.011

Motor shaft equivalent inertia*1

×10-4 kg·m2

Motor model (MITSUBISHI)
Minimum setting unitdeg
-1

Maximum table speed

min

Gear ratio+0.0250.92

1.98

HF-KP43J

HF-KP73BJ

0.00010.0001

100

55

1/48

1/90
±10

Indexing accuracy

arc.sec±15

Repeatability

arc.sec

8

Net weight

kg

91

kg

30

kg

30

N

6016

0 degree
Allowable
payloadW

4

90 degrees
W

FF

F×L Continuous holding torque

Allowable load

F

F

L

L

N·m

84

254

N·m

141

352

F×L Maximum output torque*2
F

F

L

L

F×L

F

N·m

290

kg·m2

0.1

L

Allowable workpiece inertia*3Internal rotary joint (number of ports)
MP scale (high-accuracy model)*1 Motor shaft equivalent inertia does not include the inertia of the motor shaft.
*2 Maximum holding torque should not exceed 10 seconds with 20% duty.
*3 Use the rotary joint for the air supply. It is not suitable for supplying hydraulic oil.

7

2

-

MPRZ-536A (MHI)MPRZ-736A (MHI)MPI-536A (MHI)MPI-736A (MHI)RCD series

CNC

Sizing and Product CodeDimensions [2-axis Series]
The drawings apply to the following specifications: R side motor mounting, side connector.

▲

RT100

R8 0

84

119.5

φ41

125.5

15

+ 0.025

88.5

378

φ40 0

φ40 0

(8)M6×1, 12DP

+ 0.039

0.5

112.5

Mount clamps(Accessories)/ Main unit options

18

Specifications / Dimensions

180

Max workpiece dia.170 mm

460
140
10

25

25

197

Auxiliary equipment

132

257

120

5
°

20

20

25

25

25

φ230

12
0

20 °

φ100

0

14 -0.018

Control methods for air /hydraulic table clamping

Workpiece interference region for tilting
Tilting angle-20° ~ 45°-20° ~ 90°-20° ~ 120°

φ286
φ253

55

55
φ170

φ170

Layout dimensions
on machine

RT100

40

25

30°

φ170

φ263

Precision Ratings
Precautions
8

Mount clamps (Accessories)

RCD
RT

Size

Mount clamps type / Qty. used

170g, h (1 pc. each)200

g, h (1 pc. each)100b (4 pcs.)

1.5

15

h

3

6.5

Φ14 THRU45

b15
Φ14 THRU

22.5

48

Φ14 THRU

96

4.5

15

12

g

3

30

Model

45
12

50
15

30

10

30

15

30

10

40

40

35
30

40

Main unit options ̶ High-accuracy model
By mounting a commercially available MP scale (MHI) to the rotary table, fully closed loop control can be realized.
Direct detection of the table's rotation angle enables indexing with high accuracy.

MP scale configuration

Rotary table

Machining center

Servo amplifier
Servo motor

MP scale

A/D converter

Notes
1. With the incremental specification, absolute detection is possible by combination with an absolute type servo motor.
2. Refer to the documentation of the respective manufacturer for operation instructions and information on the connection between the A/D converter and higher-level equipment.

9

CNC

RCD series
Sizing and Product CodeMain unit options ̶ Rotary joint
Specifications
Max. number of ports
Product type

Maximum actuationpressure

Size

RT

External type

170

6

6+1*1

200

6

6+1*1

Fluid: Air 0.7 MPa /Hydraulic 6 MPa

100

2

-

Fluid: Air 0.7 MPa*4*1 The +1 indicates the port in the center bore.
*2 Make sure to furnish a line filter in the air supply line.
*3 U
 nder prolonged use a small amount of actuation oil may leak from the oilport toward the adjacent air port. If possible, the adjacent ports should be left
open for use as drain ports.
*4 U
 se the rotary joint for the air supply. It is not suitable for supplying hydraulic oil.

Specifications / Dimensions

RCD

Internal typeInternal type

Mount clamps(Accessories)/ Main unit options▲

RCD170,200

B

F

C
E
45°D

Auxiliary equipment

D
E
F

47.5

φ200（φ170）

A
B
C

61.5
36.5
11.5
0
11.5
36.5
61.5

4 5°
A
φ60 +0.03
00
5 +0.05(6)Rc1/4(6)φ8.2 +0.05
0

14
12

1.4 ±0.05
25

162

▲

RT100
※

Control methods for air /hydraulic table clamping(2)Rc1/8（※part）※

1.4 ±0.05+ 0.05

φ10.2 0φ41

φ64
+ 0.025

φ50 0

15
22
3.5 66.5 50

Layout dimensions
on machine

φ40 0+ 0.025

11.25°°
11.25

φ200（φ170）

30°

D

C

B

162

Precautions

171.6

A

F
E

1.4 ±0.05

59
91
123

0

E C A

G
22

F D B

φ60

107

43
75

0
30°

Precision Ratings

G

φ10.2

50

+0.05

(6)Rc1/4
Rc1/4(6)φ8.2 0+ 0.05▲

RCD170,200+ 0.050

External type10

Auxiliary equipment ̶ Support table
Specifications
Specifications

ST170A

Rotary table model

RCD170

RCD200

Table diameter

mm

Φ170

Table pilot bore diameter

mm

Φ60 0

Center height

mm

135

Table T slot widthmm

12+ 0.018
0Keyway widthmm

18- 00.011+ 0.03

Clamp type (air 0.5 MPa, hydraulic 3.5 MPa)

Air / Hydraulic

*1

N·m

310

Inertia of rotating output part×10-2kg·m2

2.10

Maximum table speed

min-1

70

Net weight

kg

24

kg

140

N

18900

N·m

620

Clamp torqueW

Allowable payload*2

F

F

F×L
F
with clamping

Allowable load*2

L

Continuous holding torque*3

N·m

321

Maximum holding torque*3,*4

N·m

544

External rotary joint (number of ports)

6+1

Internal rotary joint (number of ports)

4

*1
*2
*3
*4

Values for ST170A is clamping torques when using an air hydro booster with a air pressure of 0.5 MPa as the supply source.
The allowable payload and allowable load values apply to the entire set including the rotary table.
The continuous / maximum holding torque is the allowable load torque when a clamp is not used.
Maximum holding torque should not exceed 10 seconds with 20% duty.

Auxiliary equipment ̶ Support table dimensions▲

ST170A

127.5

φ33+0.0250

φ60+0.03
0

135

237

φ170

90

12 +0.018
0

120.5

32.7
20

64

114

12 +0.018
0

12

88

9

103.5

62.5

112

20

62.5

15.5

20.5
0.5

4×12

5

0
14 -0.018

35.5

120

21

Table T slot groove width

11

RCD series

CNC

Sizing and Product CodeSpecifications
Product type

Size

ST

170A

Max. number of ports
Internal type

External type

4

6+1*1

*1 The "+1" indicates a port using the center bore.
*2 Be sure to use a line filter in the air supply.
*3 During prolonged use, a small amount of actuation oil may leak from an oil
port to an adjacent air port.
If possible, the adjacent port should be left open as a drain port.

Maximum actuationpressure
Fluid: Air 0.7 MPa /Hydraulic 6 MPa

171.6

0

+0.03

B
D

C

120.5

F D B

30°

E C A

0

30°

127.5

Auxiliary equipment

18

E

A

43
75
107

(6)Rc1/4

C
D

F

°

59
91
123

Rc1/4
G

A
B

φ60 0

22

C

12.5
(4)Rc1/4

37.5
61.5

(6)φ8.2 0

B

60

G

Mount clamps(Accessories)/ Main unit options

D

φ10.2

1.4

+0.05

+0.05

±0.05

A

47.5

1.4 ±0.05

5 0ST170A

φ60

▲

+0.05

▲

5 0

(4)φ8.2 +0.05
0External type

ST170A

61.5
37.5

Specifications / Dimensions

Internal type97▲

TSS13550

Control methods for air /hydraulic table clamping

Auxiliary equipment ̶ Tail stock dimensions
285.5
41.5

φ80

244

165

φ40

Layout dimensions
on machine

135

MT3
14

25

Right hand (R)

14
100

19.5

Precision Ratings0
14 -0.018

14220Precautions
12

CNC rotary table
Control methods for air / hydraulic table clamping
Introduction
This section provides information as well as precautions about generally recommended control methods that canbe used with Sankyo CNC rotary tables that support air or hydraulic table clamping or motor braking.Because
the RollerDrive type CNC rotary tables do not have any structural backlash, clamping is not necessary withincertain conditions. This approach eliminates the time required for clamping and unclamping.It allows positioningat maximum speed, while also consuming no energy for a air or hydraulic system.
However, if a very high holding torque to maintain the table at the stop position is required, table clamping can beselected as an optional specification.
* In actual use, the characteristics of the equipment installed by the customer and the functions that are targeted are also relevant.
Please use the information provided here as a reference in setting up the appropriate control sequence for the specific application.

Table clamping
Application

Serves for holding the table at the stop position during machining.

Recommended application

After checking the in-position signal of the drive motor, output the clamp command forthe table clamp and check pressure with the pressure sensor. After a specific interval,
establish the clamp complete (positioning complete) state.

Using a machine tool
servo motor

In principle, servo should be ON, but it is recommended to make provision for servo to be
switched OFF if the table clamp was activated while unbalanced torque is generated andthe motor current exceeds 70% of the rated value. (The servo motor should be designed for
absolute movement and the operation commands must also be issued as absolute values.)

Using a general typeservo motor

The following two types of servo motor control are recommended.
(1) If servo ON is to be maintained, change proportional integral control to proportional
control. This will prevent overload problems.
(2) If servo is to be set to OFF, the servo motor's coordinates would be lost if the servo
motor is designed for relative movement. To prevent this, an absolute movement typeservo motor must be used, and commands must be issued as absolute values.

Points to note

The system is designed for the following operation sequence:
Air/Hydraulic pressure ON Clamp, Air/Hydraulic pressure OFF Unclamp. Clamping
can therefore not be performed when power or the air pressure source will go OFF.

Motor braking
Application

Serves for holding the table at the stop position during power off or servo off.

Recommended application

Use a servo amplifier or a servo ON/OFF signal from higher-level equipment to turn the motor
brake on or off. Braking operation is taken to be completed after a specific interval has elapsed.

Using a machine tool
servo motor

The ON timing should be as follows. First use the servo ON signal to enable servo, verify
that servo is ON, then release the brake. After a specific interval for brake release has
elapsed, the operation is taken to be completed. The OFF timing should be as follows.
Use the servo OFF signal to set the brake to ON, and take servo OFF to be completed
after a specific interval has elapsed.

Using a general typeservo motor
Points to note13

Due to the characteristics of the motor brake function, it cannot be used for holding thetable in the stop position during machining or for table control.
Otherwise machining accuracy may be affected.

CNC

RCD series
Sizing and Product CodeControl flowchart (for type with table clamp, motor brake, and machine tool servo motor)

Start positioning

100 ms delay*1

After a specific interval for brake release has elapsed, theoperation is taken to be completed.

Mount clamps(Accessories)/ Main unit options

Issue the unclamp command for the hydraulic clamp.

Unclamp command

Check forclamp OFFSpecifications / Dimensions

The timing should be as follows. Use servo ON signal to enable
servo, verify that servo is ON, then release brake.

Servo ON command(brake release command)No

Check for clamp OFF with pressure sensor (1).

Yes
No

Auxiliary equipment

Check forunclamp ON

Check for clamp ON with pressure sensor (2).

Yes
250 ms delay*1

No

Control methods for air /hydraulic table clamping

Issue the move command (index command).

Move command

Check forin-position

The operation is taken to be completed after a specific interval
has elapsed.

Verify that the in-position (move complete) state has been reached.

Yes*1Issue the clamp command for the hydraulic clamp.

Clamp command

No

Check for clamp ON with pressure sensor (2).
Precision Ratings

Check forunclamp OFF

The operation is taken to be completed after a specific interval
has elapsed.

Layout dimensions
on machine

250 ms delay

Yes
Check for
Clamp ONNo

Check for clamp OFF with pressure sensor (1).

Yes
250 ms delay

The move operation is taken to be completed after a specificinterval has elapsed.

Precautions

Positioning complete*1*1 This value is given only for reference and will depend on actual conditions.
Also check the servo motor documentation for recommended values.

14Layout dimensions on machine
Mycenter-3XD【RCD200R（RCD170R）】

535

562

510

450

62

841

853

350

220 239.6

135

510

610

380

13.4

100

253

285

150

φ200

100

（φ170※1）

75

The drawings apply to the following specifications:
R side motor mounting, rear connector.

50
25

510

18
100 100100100

50

500

189

380
411

860

380
423

( ※ 1) RCD170R dimensions.

15

CNC

The drawings apply to the following specifications:
R side motor mounting, side connector.

Specifications / Dimensions

535

562
378

124

365.5

72.5

321

841
380

853
380

140 328.5

81.9

25

510

380

18
100 100 100 100 50
500

100

132

257
50

380

411

860

423

189

562

510

455

140

The drawings apply to the following specifications:
R side motor mounting, rear connector.

97

841
388.5

315

473.4

853
380

72.5

320.5

80.4

72.1

257

25

510

100

132

197

510

φ100

380

18
100 100 100 100

50

500

189

411

Precautions

50

Precision Ratings

150

380

Layout dimensions
on machine

535

Control methods for air /hydraulic table clamping

Mycenter-3XD【RT100R（AC axis）】

35

Auxiliary equipment

197

510

φ100

62.6

Mount clamps(Accessories)/ Main unit options

550.4

610

510

610

85

Sizing and Product Code

Mycenter-3XD【RT100R（BC axis）】

RCD series

380
860

423

16

Layout dimensions on machine
Mycenter-4XiD【RCD200R（RCD170R）】

535

562

510

450

1166

72

1178

350

367

135

510

239.6

510

61.4

100

253

285

610

140

φ200

100

（φ170※1）

65

The drawings apply to the following specifications:
R side motor mounting, rear connector.

510

18
50
15

510

100100100 100

50

500

199

606

510
1120

618
( ※ 1) RCD170R dimensions.

17

RCD series

CNC

378

134

355.5

72.5

1166
646

550.4

1178
380

140 328.5

81.9

380

387.6

15

510

100

132

257
50

510

18
100 100 100 100

50

500

199

510

606

1120

618

562

510

455

The drawings apply to the following specifications:
R side motor mounting, rear connector.

1166
713.5

107

140 315

380

473.4

1178
380

72.5

320.5

80.4

Layout dimensions
on machine

535

Control methods for air /hydraulic table clamping

Mycenter-4XiD【RT100R（AC axis）】

25

Auxiliary equipment

197

510

φ100

610

562

510

Mount clamps(Accessories)/ Main unit options

535

The drawings apply to the following specifications:
R side motor mounting, side connector.

Specifications / Dimensions

75

Sizing and Product Code

Mycenter-4XiD【RT100R（BC axis）】

397.1

Precision Ratings

510
257

197
510

100

132
15

510

18
100 100 100 100

50

500

199

606

Precautions

50

610

φ100

510
1120

618

18

Layout dimensions on machine
Mycenter-3XG【RCD200R（RCD170R）】

1055

1055
257 239.6

380

178.4

380

160

φ200

（φ170 ※1）

110

135

460

227.5 195

285

253

115

785

12.5
227.5 100 350

570

430

The drawings apply to the following specifications:
R side motor mounting, rear connector.

18
140

45

160160

45

227.5

410

227.5

900
340

160

380

1030

( ※ 1) RCD170R dimensions.

19RCD series

CNC

785

1055

227.5 372.5

378

1055
380

535

550.4

380

140 328.5

81.9

264.6

Auxiliary equipment

110

222

25 132

282

460

φ100

Mount clamps(Accessories)/ Main unit options

112.5 72.5

193

570

9.5 227.5

The drawings apply to the following specifications:
R side motor mounting, side connector.

Specifications / Dimensions

430

Sizing and Product Code

Mycenter-3XG【RT100R（BC axis）】

18
160 160

45

410

227.5

900
340

160

380

1030

380

The drawings apply to the following specifications:
R side motor mounting, rear connector.

1055

785

227.5

455

227.5 230

1055
473.4

380

140 315

72.5

320.5

80.4

12.5

φ100

274.1

110

25 132

282

222

Precision Ratings

380

460

602.5

Layout dimensions
on machine

430
75

Control methods for air /hydraulic table clamping

Mycenter-3XG【RT100R（AC axis）】

160

570

45
140 227.5

Precautions

1845

160 160

140 227.5

410

900

45
227.5 340

160

380

1030

380

160

20

Precision Ratings
1-axis SeriesNO.

Measurement

Method

RCD170

RCD2001

Parallelism between table
top and reference surface
for upright mounting

0.015mm

0.015mm2

Runout of table top

0.01mm0.01mm3

Runout of table reference
bore

0.01mm0.01mm4

Perpendicularity between
table top and reference
surface for upright
mounting

0.02mm(must not lean forward)

0.02mm(must not lean forward)

5

Parallelism between rotary
axis and guide blocks
for reference surface for
upright mounting

0.02mm/150mm

0.02mm/150mm

6

Deviation between rotary
axis and guide blocks
for reference surface for
upright mounting

0.02mm0.02mm7

Parallelism between
rotating center andreference surface for
upright mounting

0.02mm/150mm

0.02mm/150mm

8

Indexing accuracy±15arc.sec±15arc.sec

9

Repeatability

8arc.sec

8arc.sec

2-axis SeriesNO.

Measurement

1

Straightness of table top

2

Parallelism between table top
and bottom surface of base

0.01mm3

Runout of table top

0.01mm4

Runout of table reference bore

0.01mm5

Parallelism between tilt axis
center line and bottom surfaceof base0.02mmover full length

6

Parallelism between table top
and guide block

0.02mmIndexing
accuracy

Rotary axis

±15arc.sec

7

Tilt axis±10arc.sec

Rotary axis

8arc.sec

Tilt axis

4arc.sec

8

21

MethodRT100
0.01mmover full length

Repeatability

CNC

RCD series
Sizing and Product CodePrecautions
Air supply
Pressure setting: 0.02 MPa
Air consumption: 15 L/min

Sankyo's CNC rotary tables come standard equippedwith an air purge outlet. (Use it to blow out condensationand coolant to prolong the life of electrical parts andSpecifications / Dimensions

IN

prevent rust in the motor housing.) Supply clean air forthe air purge by referring to the drawing shown.
(Do NOT block the exhaust outlet.)Mount clamps(Accessories)/ Main unit options

OUT
Air combination
AC20C-01CG-A (SMC)(Pressure Gauge G36-2-01)*Reference Model

Lubrication
Sankyo's CNC rotary tables use high-performance lubrication oil. Although the lubricant is chemically and thermallystable, it should be changed every 3,000 hours of operation in order to ensure longer product life. Even if operated

Auxiliary equipment

less than 3,000 hours, the oil should be changed once per year. The condition of the oil can be checked with the oillevel gauge while the unit is in the stop condition. Check the oil level and color. If the level is low or the color haschanged, change the oil regardless of the number of operation hours. Some air bubbles may form in the oil during
operation. This is normal and does not affect quality.
* Be sure to use only the lubricant specified below. Otherwise service life may be reduced and parts may deteriorate.

Control methods for air /hydraulic table clamping

Specified lubricant: Mobil SHC629 (VG150)

Use in grinding machines
When used in grinding machines, the seal device on the outer periphery of the table may become damaged. The
warranty does not cover such damage.

Layout dimensions
on machine

Maximum rotation speed
The maximum rotation speed for the table given in the specifications refers to the indexing speed. Consult withSankyo if the table is to be rotated continuously. Otherwise, the table will heat up and lose accuracy, causing
overload alarms with the servo motor.

Precision Ratings

General Precautions■ Under the Japanese trade regulation, RollerDrive CNC can be restricted to supply or export to a country which may
produce weapons or related products.
■ Dimensions and specifications are subjected to be modified without notice.
■ Contents of this catalogue is published in March 2021.
■ Whole or part of the contents, mechanisms, logos, drawings belongs to Sankyo-Seisakusho, Japan. No part of the

Precautions

catalogue is allowed to copy or redistributed to the third party without the permission of Sankyo Seisakusho.

22

Global network

Group Companies
Sankyo America Inc.
10655 State Route 47 Sidney, Ohio, 45365 U.S.A.
Phone: +1-(0)937-498-4901 Fax: +1-(0)937-498-9403
Email: sales@sankyoautomation.com
Sankyo Korea Co., Ltd.
1449-48 Seobu-ro, Gwonseon-gu, Suwon-si, Gyeonggi-do, 16643 Korea
Phone: +82-(0)31-895-5991 Fax: +82-(0)31-895-6607
Email: kr-sales@rollerdrive.com

Sankyo China Trading Co., Ltd.
Hangzhou Sankyo Machinery Co., Ltd.

Sankyo America Inc.

Italy

[ Shenzhen Sales Office ]Unit 19J, Tower B, NEO Building, No.6009 Shennan Avenue,
Futian District, Shenzhen China
Phone: +86-(0)755-8230-0270 Fax: +86-(0)755-8236-4605

Sankyo Seisakusho Co.

Sankyo Shizuoka Seisakusho Co.

Sankyo Korea Co., Ltd.
TaiwanIndia
Headquarters
Global Sales Offices
Production Facilities
International Distributors

ThailandRodax Vietnam Co., Ltd.

Singapore

Sankyo China Trading Co., Ltd.
[ Shanghai Sales Office ]Room 1103, Block B, No.391 Guiping Road,
Shanghai 200233 China
Phone: +86-(0)21-5445-2813 Fax: +86-(0)21-5445-2340
Email: sales@sankyochina-trading.com

Sankyo Works（Thailand）Co., Ltd.

[ Tianjin Sales Office ]Room 1905, Pengzhanfeiwo Building A, Crossing Yale Road Yaolin Road,
Xiqing District, Tianjin 300380 China
Phone: +86-(0)22-2312-1005 Fax: +86-(0)22-2312-1007[ Guangzhou Sales Office ]Room 913, Xing Pu buliding, No.12 Guan Hong Road,
Guangzhou Economic Development Zone, Huang Pu, Guang Zhou 510670 China
Phone: +86-(0)20-8985-1846 Fax: +86-(0)20-8225-7346[ Wuhan Sales Office ]Room 2301, Taihe Square, No.134 Wusheng Road, Wuhan,
Hubei Province China
Phone: +86-(0)27-8568-5818 Fax: +86-(0)27-8568-2818
Hangzhou Sankyo Machinery Co., Ltd.
No.2518 Jiang Dong 2 Road, Hangzhou Jiang Dong Industrial Park,
Xiaoshan Zone, Hangzhou, Zhejiang, China
Phone: +86-(0)571-8283-3311 Fax: +86-(0)571-8283-1133
Rodax Vietnam Co., Ltd.
Plot No. M1, Thang Long Industrial Park II
Di Su, My Hao, Hung Yen, Viet Nam
Phone: +84-(0)221-3-589701 Fax: +84-(0)221-3-589708
Sankyo Works (Thailand) Co., Ltd.
9/31 Moo 5, Phaholyotin Road, Klongnueng,
Klong Luang, Patumthani 12120 Thailand
Phone: +66-(0)2-516-5355 Fax: +66-(0)2-068-0931
Email: sales@sankyo-works.co.th

Contact us
Mon-Fri AM8：30-12：00 PM13：00-17：30 UTC + 09：00（JST）（Except public holidays and company holidays）■ Headquarters(International Sales Division)

3-37-3 Tabatashinmachi, Kita-ku, Tokyo, Japan 114-8538
Phone: +81（0）3-3800-3330
Fax:+81（0）
3-3800-3380
Email: overseas@sankyo-seisakusho.co.jp
URL: http://www.sankyo-seisakusho.co.jp■ Taiwan Sales Office

No.21, Ln.152, Jianxing Rd., Sanhe Vil., Daya Dist., Taichung City 42876, Taiwan (R.O.C.)
Phone: +886（0）4-2359-4048
Fax:+886（0）4-2359-4720
Email: tw-sales@rollerdrive.com

http://www.sankyo-seisakusho.co.jp* Photos of the Machining Center are used courtesy of Kitamura Machinery.
Sankyo Seisakusho is responsible for the manufacture of the CNC Rotary Table and
CNC Tilting Table.
* All patent rights and copyrights for parts of mechanisms described in this catalog andfor trademarks, images, drawings etc. belong to Sankyo Seisakusho Co.
"RollerDrive" is a registered trademark of Sankyo Seisakusho Co. in Japan.

KTCNC-2021/03E（AZ）