Name: RM-GB Servo Gripper
Brand: RobustMotion
SKU: RM-GB-11-20-2-ITG
Availability: InStock
Rating: 4.8 (30 reviews)

Home Products RM-GB Servo Gripper

GB-Servo Gripper

Large Gripping Force

Various stroke options

High Rigidity

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Parameter Drawing FAQ Download Application

RM-GB-11

Servo Gripper (Stroke 20-40mm)

Specifications

Model	RM-GB-11-20-2-ITG	RM-GB-11-40-2-ITG	RM-GB-11-20-2	RM-GB-11-40-2
Size Code	11	11	11	11
Spec	2	2	2	2
Weight	0.8 kg	1.1 kg	0.8 kg	1.1 kg
Dimensions	1058536 mm	1258536 mm	1058536 mm	1258536 mm
Stroke	20 mm	40 mm	20 mm	40 mm
Max. Gripping Force	65 N	110 N	65 N	110 N
Max. speed	80 mm/s	80 mm/s	80 mm/s	80 mm/s
Repeatability	±0.05 mm	±0.05 mm	±0.05 mm	±0.05 mm
Max. Open/Close Time	0.33s / 0.33s	0.58s / 0.58s	0.33s / 0.33s	0.58s / 0.58s
Allowable Moment MP	5.9 N.m	5.9 N.m	5.9 N.m	5.9 N.m
Allowable Moment MR	8.0 N.m	8.0 N.m	8.0 N.m	8.0 N.m
Allowable Moment MY	5.9 N.m	5.9 N.m	5.9 N.m	5.9 N.m
Power-Off Self-Locking	Mechanical Self-Locking	Mechanical Self-Locking	Mechanical Self-Locking	Mechanical Self-Locking
Compatible Controllers	Built-in Controller	Built-in Controller	RM-C-20; RM-CEP-20; RM-CEMS-20	RM-C-20; RM-CEP-20; RM-CEMS-20
Communication Protocols	Modbus RTU; I/O	Modbus RTU; I/O	EtherCAT; Modbus TCP; PROFINET; CC-Link; Modbus RTU; I/O (See Page 75 for protocol details per controller.)	EtherCAT; Modbus TCP; PROFINET; CC-Link; Modbus RTU; I/O (See Page 75 for protocol details per controller.)
I/O Interface	3 IN / 3 OUT (NPN)	3 IN / 3 OUT (NPN)	See controller specs	See controller specs
Operating Voltage	DC 24V ±10%	DC 24V ±10%	DC 24V ±10%	DC 24V ±10%
Rated Current	2A	2A	2A	2A
Operating Environment	0~40°C, < 85%RH	0~40°C, < 85%RH	0~40°C, < 85%RH	0~40°C, < 85%RH
Protection Class	IP40	IP40	IP40	IP40

RM-GB-17

Servo Gripper (Stroke 30-60mm)

Specifications

Model	RM-GB-17-30-2-ITG	RM-GB-17-60-2-ITG	RM-GB-17-30-2	RM-GB-17-60-2
Size Code	17	17	17	17
Spec	2	2	2	2
Weight	2.1 kg	2.3 kg	2.1 kg	2.3 kg
Dimensions	16511250 mm	16511250 mm	16511250 mm	16511250 mm
Stroke	30 mm	60 mm	30 mm	60 mm
Max. Gripping Force	350 N	175 N	500 N	250 N
Max. speed	80 mm/s	80 mm/s	80 mm/s	80 mm/s
Repeatability	±0.02 mm	±0.05 mm	±0.02 mm	±0.05 mm
Max. Open/Close Time	0.4s / 0.4s	0.7s / 0.7s	0.4s / 0.4s	0.7s / 0.7s
Allowable Moment MP	15.0 N.m	15.0 N.m	15.0 N.m	15.0 N.m
Allowable Moment MR	58.5 N.m	58.5 N.m	58.5 N.m	58.5 N.m
Allowable Moment MY	25.5 N.m	25.5 N.m	25.5 N.m	25.5 N.m
Power-Off Self-Locking	/	Mechanical Self-Locking	Optional Brake	Mechanical Self-Locking
Compatible Controllers	Built-in Controller	Built-in Controller	RM-C-40; RM-CEP-40; RM-CEMS-40	RM-C-40; RM-CEP-40; RM-CEMS-40
Communication Protocols	Modbus RTU; I/O	Modbus RTU; I/O	EtherCAT; Modbus TCP; PROFINET; CC-Link; Modbus RTU; I/O (See Page 75 for protocol details per controller.)	EtherCAT; Modbus TCP; PROFINET; CC-Link; Modbus RTU; I/O (See Page 75 for protocol details per controller.)
I/O Interface	3 IN / 3 OUT (NPN)	3 IN / 3 OUT (NPN)	See controller specs	See controller specs
Operating Voltage	DC 24V ±10%	DC 24V ±10%	DC 24V ±10%	DC 24V ±10%
Rated Current	4A	4A	4A	4A
Operating Environment	0~40°C, < 85%RH	0~40°C, < 85%RH	0~40°C, < 85%RH	0~40°C, < 85%RH
Protection Class	IP40	IP40	IP40	IP40

RM-GB-16

Servo Gripper (Stroke 80-170mm)

Specifications

Model	RM-GB-16-80-2	RM-GB-16-120-2	RM-GB-16-170-2
Size Code	16	16	16
Spec	2	2	2
Weight	3.6 kg	4.0 kg	4.7 kg
Dimensions	215 * 126 * 58 mm	255 * 126 * 58 mm	305 * 126 * 58 mm
Stroke	80 mm	120 mm	170 mm
Max. Gripping Force	600 N	600 N	600 N
Max. speed	100 mm/s	100 mm/s	100 mm/s
Repeatability	±0.02 mm	±0.02 mm	±0.02 mm
Max. Open/Close Time	0.9s / 0.9s	1.3s / 1.3s	1.8s / 1.8s
Allowable Moment MP	30 N.m	30 N.m	30 N.m
Allowable Moment MR	60 N.m	60 N.m	60 N.m
Allowable Moment MY	40 N.m	40 N.m	40 N.m
Power-Off Self-Locking	Optional Brake	Optional Brake	Optional Brake
Compatible Controllers	RM-CEU-55; RM-CEM	RM-CEU-55; RM-CEM	RM-CEU-55; RM-CEM
Bus Protocols	RM-CEU supports: EtherCAT; Modbus RTU; I/ORM-CEM supports: Modbus TCP; PROFINET; CC-Link
Control Interface	I/O	I/O	I/O
Operating Voltage	DC 24V ±10%	DC 24V ±10%	DC 24V ±10%
Rated Current	6A	6A	6A
Operating Environment	0~40°C, < 85%RH	0~40°C, < 85%RH	0~40°C, < 85%RH
Protection Class	IP40	IP40	IP40

Note: Test data measured in lab at 25°C.

Frequently Asked Questions

Q1: What is the difference between the ITG Model and the Split Type Model?

ITG model (Integrated): built-in controller within the actuator body.

Split Type Model: actuator with an external controller; a compatible controller must be selected when ordering.

Q2: How to choose between the RM-GB-ITG model and the RM-GB split type model?

When the control method is I/O or Modbus RTU, the RM-GB-ITG model is recommended.
When the control method is Modbus TCP or EtherCAT, the electric actuator goes with the split-type model.

Q3: What are the key features of the RM-GB Servo Gripper?

The RM-GB Servo Gripper provides high gripping force, multiple stroke options, high rigidity, power-off self-locking, and drop detection capability.

Q4: How do I select the right RM-GB Servo Gripper model for my requirements?

Please refer to the Selection Step section in the Product Catalog. For further inquiries, contact RobustMotion or an official RobustMotion distributor in your region.

Q5: Besides Modbus RTU, what communication protocols are supported?

The standard communication protocols supplied for overseas markets include I/O control, Modbus RTU, Modbus TCP, and EtherCAT. For the latest information, please contact RobustMotion or an official RobustMotion distributor in your region.

Q6: What wiring methods are available for RM-GB models?

RM-GB series offers multiple wiring method options. Aviation Plug and Switched Wiring are highly recommended. Users should select and confirm depending on the specific application.

Q7: Does the RM-GB require software control?

Yes. Except for the RM-EGB series, all products require RM software-V6 Version to set motion commands.

Q8: Does the RM-GB Servo Gripper series support power-off mechanical self-lock?

Some standard RM-GB models have mechanical self-lock. For models without mechanical self-lock that require a brake function, please contact RobustMotion or an official RobustMotion distributor in your region.

Q9: How should I perform maintenance on the electric actuator?

Detailed maintenance instructions are provided in the user manual for each product.

Q10: What are the typical application industries for the RM-GB series?

The RM-GB series is widely used in 3C electronics, biomedical equipment, new energy, and automotive assembly. It supports a broad range of workpiece applications, from small electronic components to large automotive grille assemblies.