Bidirectional Actuator

SE/SGseries

High-precision open/close gripping motions
achieved with a single actuator

Bidirectional Actuator

SE/SGSeries

Open/close gripping motions
achieved with a single actuator
Slide block
A single-axis unit that combines a single ball screw and linear guidance system
into a compact unit. The left- and right-hand thread ball screws areintegrated into a single unit for open/close clamping.
With the slide block designed to fit within the U-guide rail,
the actuator realizes a low profile.
Compared to conventional table mechanisms, space reduction is greatly improved.
Providing high precision and high rigidity, SE/SG Series actuators are particularly
suitable for applications that require precise positioning.

Right-hand threadMotorsold separately

1

Left-hand thread

Repeated positioning accuracy
SE: ±0.010mm or less
SG: ±0.005mm or less

* For more information, please scan this QR code (YouTube).

2

Sizes, Specifications

Model No.
SE1501B-150B-****-*S
SE1502B-150B-****-*S
SE2302B-250B-****-*S
SE2305B-250B-****-*SSE

Repeated positioning
accuracy [mm]Stroke [mm]SE2305B-300B-****-*S

30

◎45◎

◎

±0.01070

SE3004B-400B-****-*S
SE3005B-400B-****-*S
SE4510B-540B-****-*S◎±0.005100

SG3310B-400B-****-*S
SG4610B-540B-****-*S●●70

SG3305B-400B-****-*S

◎◎

130

SG2605B-300B-****-*S
SG

◎◎

100

SE3010B-400B-****-*S
SG2602B-300B-****-*S◎: Standard product●: Made-to-order product

◎◎◎
●

130

Gripping Force

SE

SG

SE1501＊

SE1502

SE2302

SG2602

SE2305

SG2605

SE3004

SE3005SE3010SE45103＊

Motor capacity [W]Gripping force [N]10202020302010252040304050

1261001375050100101＊5060100

120200253

5050

SG3305100

101200202

5025SG3310

SG461010050200

101

5025100

50200101• The gripping force is a reference value from thepushing force from the rated torque of the typicalmotor capacity applied to the actuator, or fromthe maximum axial load that affects the ballscrew.
• The gripping force may vary depending on thetransport mass, speed, material, and installation
conditions. Please set the operating conditions
appropriately.
• If the force exceeds the value indicated here,
malfunction or damage to the actuator may occur.

Features

Reduces procurement costs as well as design and assembly
time, all while contributing to space efficiency
SE/SG bidirectional actuators reduce the overall space required for components, enabling smaller equipment design.
By simultaneously using left and right screw threads in the actuator‘s drive component, the need to prepare one ball screw for each motionfunction is eliminated. The decreased number of components supports cost reduction as well as simplified supply chain management.
The integrated design eliminates the need for complicated, fine adjustment that would otherwise be needed to achieve shaft center alignmentand synchronized operation. The number of assembling processes and, consequently, total time required for installation is decreased.
The reduced number of linear components accordingly reduces the number of peripheral components such as motors and amplifiers.

Example of a mechanism
designed with two
separate ball screws

Approximately 40% reductionin assembly time, component
count, and supply chain
management burden

Integrated with one
bidirectional actuator

Approximately 20%
reduction in dimensional
footprint of equipment

Dual motion functions
achieved witha single actuator

Manual adjustment handle included

Kuroda S-Grease included

The manual handle can beused to easily rotate the screw
shaft when assembling thedevice, for example, to checkthe position and operation of
the slide block.

It also has low particle
generation properties thatmake it suitable for use in
semiconductor manufacturing
equipment.

* Do not touch the handle while it is inoperation because it is a rotating part andthere is a risk of it being caught.

Application Examples

Workpiece chamfering machine

Robot handCentering of workpiece4Customized Solutions

kaniactuator(Custom offering)A second gripping mechanism is combined using two additional slide blocks.
By selecting a design with distinct leads, various gripping operations become possible with a single unit.

Single lead

An actuator with
two gripping features,
like crab claws!

Lead 10

Lead 10

Lead 10

Lead 10Multiple leads

Lead 10

Lead 5

Lead 5

Lead 10

Available sizes
Distinct lead designs possible (ex: 10mm lead for all, or 4mm lead for the inside and 5mm lead for the outside)
Repeated
positioning accuracy
[mm]

Lead
●●[mm]

Model No.
SE30●●V-***V-****-*S

45

10±0.010

SE45●●V-***V-****-*S

51020±0.010
Left-handthread lead 5

Right-handthread lead 5

Left-handthread lead 5

Right-handthread lead 5

Single leadLeft-handthread lead 5

Right-handthread lead 5

Left-handthread lead 5

Right-handthread lead 5[Before opening/closing]Left-handthread lead 10

Multiple leads

Left-handthread lead 10

Left-handthread lead 5

Right-handthread lead 5[Before opening/closing]5[After opening/closing]Left-handthread lead 5

Right-handthread lead 5

Right-handthread lead 10[After opening/closing]Right-handthread lead 10

Model Number Interpretation Key

ModelNo.

LeadSlideblock

SE15

01

B

(1)

(2)

(3)

ｰ

Guide
rail
LengthPerformancesign150

B

(4)

(5)

(Note 1)ｰMotorbracketconfiguration

Type of
cover

Sensor

A0

N

N

(6)

(7)

(8)

(1) Model and (2) leadｰSurfacetreatment

GreaseNS

(9)

(10)

ｰ

Dowelpinhole(11)(7) Cover shape

Model No.

LeadNNo cover

SE151, 2C

With upper surface cover

SE232, 5SE304, 5, 10SE4510

SG262, 5SG335, 10SG4610(8) Sensor (Note 3)
SE15

N: NoneK, E: Proximity sensor
1: Only sensor rail

SE23

N: None
S: Photo micro-sensor
K, E: Proximity sensor
1: Only sensor rail(3) Slide blockStandard

B: With two long blocks

Crab actuator

V

N: NoneM, Y, C, P: Photo micro-sensor
K, E: Proximity sensor
1: Only sensor rail

SE30SE45(4) Guide rail length (Note 2)
Model No.

N: NoneS: Photo micro-sensor
K, E: Proximity sensor
1: Only sensor rail

LengthSE15150

SE23250, 300

SE30400

SE45540

SG26300

SG33400

SG46540

SG26

N: NoneM, Y, C, P, H, J: Photo micro-sensor
K, E: Proximity sensor
1, 2, 3: Only sensor rail

SG33
SG46

(9) Surface treatment(5) Performance symbolStandard

B

Crab actuator

VN

Standard specification

L

Rust preventive black oxide film treatment(10) Grease(6) Motor bracket configuration
ModelAll

Motor bracket configuration

SE15A0, A1, A2, A3

SE23A0, A1, A2, A3, A5, A6, A7

SE30SE45
SG26
SG33
SG46

A0, A1, A2, A3, A4, A5, A7, B1, RN, E□, F□

A0, A1, A2, A3, A4, A5, A6, RN, E□, F□, G□
A0, A1, A3, A5, A6, A8, A9, AA, R0

A0, A1, A2, A3, A4, A5, A6, A7, B1, B2, R0, E□, F□

S: Low particle generating grease(Kuroda S-Grease)(11) Dowel pin holeBlank

No dowel pin holePS

For slide block onlyPR

For guide rail only

PSR

For both slide block and guide rail

A0, A1, A2, A3, A4, B0, C0, D0, R0, E□, F□, G□(Note 1) For details, please refer to the KURODA catalog [Ball screw actuator].
(Note 2) Please consult with us for long guide rail specifications and intermediate stroke specifications other than the standard length.
(Note 3) One sensor and one sensor dog are located on the motor bracket side.

6

Shape and Dimensions

SE1501/1502
197
40

150

725

2×50=100
50
40

13.3

A4

14

Positioning
handleLeft-hand thread(20)50 (min)Maximum Stroke

Specification/ModelBall Screw part Ca
Basic dynamic load rating[kN]

A-A(20)

SE1502B-150B

120.39

0.54
1.6
0.5

0.77

0.76

Guide part C

2.7

Bearing part Cb

0.19MP10MY

11MR

28

Motor capacity [10W]2025

Motor capacity [20W]

2040

Motor capacity [30W]

2040

Stroke [mm]30Repeated positioning accuracy [mm]±0.010

Positioning accuracy [mm]0.070

Travelling parallelism B [mm]0.015Backlash [mm] [or less]

0.020

Ball screw shaft conversion inertia [kg・m2]

1.61×10-7

Starting torque [N・m] [or less]7Maximum Stroke

Guide part CStatic permissible moment
[N・m]

15

2×3-3.4 drilled hole
6 spot facing depth 223

Bearing part CbBall Screw part Ca
Basic static load rating [kN]

10A
14SE1501B-150B

Lead [mm]Gripping force [N]Right-hand thread

4-M3 depth 32-M2 depth 3
Mouth C0.5

30

18

15

12

13

6 (depth of groove 1)

0.012

SE2302/2305
L28L1

52

M×PN
68.6
60

5

A

21.4

Left-hand thread

50.5

Right-hand thread

4-M3 depth 4.5
4-M3 depth 6

34.3

49.6

25

25

25

23

5.9
Positioninghandle

15.4A723

2×(M+1)-4.5 drilled hole
8 counterbore depth 4.4

15 (depth of groove 1)

A-A

2340
Maximum Stroke(39.3)

Maximum Stroke
80 (min)Specification/Model
Lead [mm]Ball Screw part Ca
Basic dynamic load rating
Guide part C[kN]
Bearing part Cb
Ball Screw part Ca
Basic static load rating [kN]
Guide part C
Bearing part Cb
MPStatic permissible moment
MY[N・m]MR
Motor capacity [50W]
Gripping force [N]Motor capacity [100W]
Stroke [mm]Repeated positioning accuracy [mm]Positioning accuracy [mm]Travelling parallelism B [mm]Backlash [mm] [or less]Starting torque [N・m] [or less]Ball screw shaft conversion inertia [kg・m2]
Guide rail length
L1Total length
L2
N
M×P

(39.3)

SE2302B-250B
2
1.8

SE2305B-250B
5SE2305B-300B
5
1.9

4.3
1.79
3.2

3.1
7.0
1.76
4651
134

126
137

50
101
45

70
±0.010
0.085
0.015
0.020
0.040
1.10×10-6

9.36×10-7
250
310
45
2×80

1.26×10-6
300
360
30
3×80

8

Shape and Dimensions

SE3004/3005/3010
467840059

3×100=300

50
100
84.4
5.2

76.8

84-M5 depth 8A721.3
2×4-5.5 drilled hole
9.5 counterbore depth 5.4

4-M3 depth 615 (depth ofgroove 1)30(47.4)

Maximum Stroke

104.4 (min)Maximum Stroke

Specification/Model

SE3004B-400B

Lead [mm]4Ball Screw part Ca
Basic dynamic load rating[kN](47.4)

SE3005B-400B
5SE3010B-400B
102.0

Guide part C

7.0

Bearing part Cb

4.4
5.3

3.2

Guide part C

11.8

Bearing part Cb

4.36

MP101

Static permissible moment
[N・m]

MY120

MR

260

Motor capacity [50W]

605025

Gripping force [N]Motor capacity [100W]12010150

Motor capacity [200W]

253

202101

Stroke [mm]100

Repeated positioning accuracy [mm]±0.010

Positioning accuracy [mm]0.095Travelling parallelism B [mm]0.025Backlash [mm] [or less]

0.020

Starting torque [N・m] [or less]Ball screw shaft conversion inertia [kg・m2]

930
A-A

3.0

Ball Screw part Ca
Basic static load rating [kN]

60.5

59.6

30

30

Positioning
handle

27.4

A

53.8

30

Right-handthread39

Left-handthread0.15
3.61×10-6

3.74×10-6

4.86×10-6

SE4510

630
13540

77

4×100=400705111510945

46

118-φ2.5 depth 6Damper

4-M6 depth 121146680

2×5-6.6 drilled hole
11 spot facing depth 6.5

6Left-hand thread

A

86.5

58

85.2

43

17

1146

Positioninghandle

6A
100

Damper

31.5
38.8

Right-hand thread
A-A

153 (min)Maximum Stroke(63.5)

Specification/Model(63.5)

SE4510B-540B

Lead [mm]10Ball Screw part Ca
Basic dynamic load rating[kN]

Maximum Stroke

5.1

Guide part C27

Bearing part Cb

5.9

Ball Screw part Ca

10.5

Guide part C45

Basic static load rating [kN]

Bearing part Cb

3.2

MP572

Static permissible moment
[N・m]

MY681

MR

1410

Motor capacity [50W]

25

Gripping force [N]Motor capacity [100W]

50

Motor capacity [200W]

101

Stroke [mm]130

Repeated positioning accuracy [mm]±0.010

Positioning accuracy [mm]0.110Travelling parallelism B [mm]0.040Backlash [mm] [or less]

0.020

Ball screw shaft conversion inertia [kg・m2]

2.81×10-5

Starting torque [N・m] [or less]

0.20

10Shape and Dimensions

SG2602/2605

3621030052

3×80=2403080

15 (depth of groove 0.9)

4-M4 depth 78.56AA

30
Left-hand thread

4-M2 depth 44460(41)

Maximum Stroke

74 (min)22

Right-hand thread

Maximum Stroke50
162×4-4.5 drilled hole
8 spot facing depth 4.5

A-A

(41)

Specification/Model

SG2602B-300B

SG2605B-300B

Lead [mm]25Ball Screw part Ca
Basic dynamic load rating
[kN]

2.35
7.78

Bearing part Cb

1.79
3.64

3.3

Guide part C

14.98

Bearing part Cb

1.76

Static permissible moment[N・m]
Gripping force [N]2.6

Guide part C

Ball Screw part Ca
Basic static load rating [kN]

MP99MY

118

MR

255

Motor capacity [50W]

126

50

Motor capacity [100W]

137

101

Stroke [mm]70

Repeated positioning accuracy [mm]±0.005

Positioning accuracy [mm]0.050Travelling parallelism B [mm]0.025Backlash [mm] [or less]

0.020

Starting torque [N・m] [or less]Ball screw shaft conversion inertia [kg・m2]

1131

49.6

25

25

25

Positioning
handle26

0.040
9.39×10-6

1.28×10-6

SG3305/3310
467
8

400

59

3×100=300

50
100

Right-handthread77.2

338A

4-M5 depth 860A

815 (depth of groove 1)

4-M2 depth 537.4

5930

30

Positioning
handle30

Left-handthread2×4-5.5 drilled hole
9.5 spot facing depth 523
31.5

30
A-A
53.8

(46.5)

Maximum Stroke

107 (min)Specification/Model
Ball Screw part Ca

SG3310B-400B

510

3.35

2.2

Guide part C

12.6

Bearing part Cb

4.4

Ball Screw part Ca
Basic static load rating [kN]

(46.5)

SG3305B-400B

Lead [mm]Basic dynamic load rating[kN]

Maximum Stroke

5.9

3.5

Guide part C

22.7

Bearing part Cb

4.36MP

181

Static permissible moment
[N・m]

MY215

MR500Motor capacity [50W]

5025

Gripping force [N]Motor capacity [100W]

10150

Motor capacity [200W]

202101

Stroke [mm]100

Repeated positioning accuracy [mm]±0.005

Positioning accuracy [mm]0.035Travelling parallelism B [mm]0.025Backlash [mm] [or less]

0.020

Starting torque [N・m] [or less]Ball screw shaft conversion inertia [kg・m2]

0.15
3.75×10-6

4.90×10-6

12

Shape and Dimensions

SG4610

638.5
85.5

540

13

4×100=400
109.2

Damper

4-M2 depth 511Maximum Stroke

133 (min)Specification/Model4332
44.5

464-M6 depth 12A-A

Maximum Stroke(73.1)

SG4610B-540B

Lead [mm]10Ball Screw part Ca

4.4

Guide part C

29.8

Bearing part Cb

6.77

Basic dynamic load rating[kN]

Ball Screw part Ca

7.9

Guide part C

51.2

Bearing part Cb

7.45

MP

610

Basic static load rating[kN]

Static permissible moment
[N・m]

MY727

MR

1612

Motor capacity [50W]

25

Gripping force [N]Motor capacity [100W]

50

Motor capacity [200W]

101

Stroke [mm]130

Repeated positioning accuracy [mm]±0.005

Positioning accuracy [mm]0.040

Travelling parallelism B [mm]0.040Backlash [mm] [or less]

0.02

Ball screw shaft conversion inertia [kg・m2]

2.79×10-5

Starting torque [N・m] [or less]8685
Damper
2×5-6.6 drilled hole
11 spot facing depth 6.5

80(73.1)

54.4

815 (depth of groove 1)

1346

18
15
46

9

Righthandthread46

Positioning
handle106.6

Left-handthread

51

70

0.20

Bilateral Ball Screws Also Available
In addition to bilateral actuators,
bilateral ball screws are also available for customization
to meet your design requirements.

Lead [mm]φ6φ8φ10φ12φ1512●

●

●

3●

●

●

●

●

φ16Screw
shaft
Nominaldiameter
[mm]

φ20
φ25
φ28
φ32
φ364●

●

●

●

●

56●

8●

●

●

101620●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

●

φ50
●

32●

φ45

φ63

15

●

φ40

φ55

12●
●

●

●

●

* The sizes listed in this table are actual production results. If you need a size other than the above, please contact us.
* Please contact us for specifications and dimensions.

14CAT.NO.KB131-E-01* The information in this document is current as of the end of June 2021.
Product appearance and specifications are subject to change without notice in order to keep up with technological advances and improvements.

2021.11(S)