BUYER GUIDE

Electric Grippers: Selection Guide for Robot End Effectors

Electric gripper selection begins with the contact geometry between the fingers and the part. Stroke and rated force matter, but reliable retention also depends on friction, grip direction, acceleration, finger length, impact, part stiffness and where external forces enter the grasp. A gripper that closes around one sample may not tolerate the production range or a loss of power. Give suppliers representative parts and the complete robot motion. Ask them to calculate the effective grip, propose finger geometry, identify sensing and fail-safe behavior, and state which controller, cable and software options are included in the integration.

How to shortlist

Gripper geometry

Choose parallel, centric, adaptive, internal or external gripping according to part geometry, approach access and the datum that must be preserved.

Usable stroke

Size stroke for the complete production range, finger thickness, placement tolerance and clearance. Avoid treating maximum travel as the preferred operating point.

Effective grip force

Calculate retention from part mass, friction, acceleration, grip direction and external process loads. Include a justified safety factor and confirm where rated force is measured.

Finger design and moment limits

Provide finger CAD, length, mass and contact materials. Long fingers increase moments and may reduce the usable gripping force or speed.

Part variation and damage limits

State dimensional tolerances, surface finish, fragility, compliance, contamination and acceptable marking. Identify whether position or force feedback is needed to distinguish parts or confirm a grasp.

Cycle and duty

Specify open and close distance, target time, holds per cycle, cycles per hour and shifts. Ask about thermal derating under the proposed force and motion profile.

Loss-of-power behavior

Confirm brake, self-locking or stored-energy behavior and the safe recovery procedure. Decide whether the application must retain or release the part after power loss.

Mechanical and electrical integration

Check flange, payload contribution, cable routing, supply, peak current, digital I/O or fieldbus, robot plug-in support, protection rating and replacement of fingers and cables.

Matching catalog models

42 models

HITBOTZ-EFG-20

230-80 N20 mm

Inquiry

Model	Type	Stroke	Grip force	Payload	Repeatability	Communication		Quote
HITBOTZ-EFG-20	Two-finger^†	20 mm^†	30-80 N^†	<=800 g^†	—	Modbus RTU (RS485) / Digital I/O^†	Inquiry	Quote
HITBOTZ-EFG-L	Two-finger^†	12 mm^†	30 N^†	<=500 g^†	—	Modbus RTU (RS485) / Digital I/O^†	Inquiry	Quote
HITBOTZ-EFG-12	Two-finger^†	12 mm^†	30 N^†	<=500 g^†	—	Modbus RTU (RS485) / Digital I/O^†	Inquiry	Quote
HITBOTZ-EFG-FS	Two-finger^†	8 mm^†	8-20 N^†	<=300 g^†	—	Modbus RTU (RS485) / Digital I/O^†	Inquiry	Quote
HITBOTZ-EFG-8S	Two-finger^†	8 mm^†	8-20 N^†	<=300 g^†	—	Modbus RTU (RS485) / Digital I/O^†	Inquiry	Quote
HITBOTZ-EMG-4	Two-finger^†	4 mm^†	3-5 N^†	<=100 g^†	—	Modbus RTU (RS485) / Digital I/O^†	Inquiry	Quote
DH-RoboticsRGIC-100-35	Rotating^†	35 mm^†	40-100 N per jaw^†	1.0 kg^†	+/-0.02 mm position, +/-0.05 deg rotation^†	Modbus RTU (RS485), Digital I/O; optional TCP/IP, USB2.0, CAN2.0A, PROFINET, EtherCAT^†	Inquiry	Quote
DH-RoboticsRGI-100-30	Rotating^†	30 mm^†	30-100 N per jaw^†	1.5 kg^†	+/-0.02 mm position, +/-0.05 deg rotation^†	Modbus RTU (RS485), Digital I/O; optional TCP/IP, USB2.0, CAN2.0A, PROFINET, EtherCAT^†	Inquiry	Quote
DH-RoboticsRGI-100-22	Rotating^†	22 mm^†	30-100 N per jaw^†	1.4 kg^†	+/-0.02 mm position, +/-0.05 deg rotation^†	Modbus RTU (RS485), Digital I/O; optional TCP/IP, USB2.0, CAN2.0A, PROFINET, EtherCAT^†	Inquiry	Quote
DH-RoboticsRGI-100-14	Rotating^†	14 mm^†	30-100 N per jaw^†	1.28 kg^†	+/-0.02 mm position, +/-0.05 deg rotation^†	Modbus RTU (RS485), Digital I/O; optional TCP/IP, USB2.0, CAN2.0A, PROFINET, EtherCAT^†	Inquiry	Quote
DH-RoboticsRGIC-35-12	Rotating^†	12 mm^†	13-35 N per jaw^†	0.5 kg^†	+/-0.02 mm position, +/-0.05 deg rotation^†	Modbus RTU (RS485), Digital I/O; optional TCP/IP, USB2.0, CAN2.0A, PROFINET, EtherCAT^†	Inquiry	Quote
DH-RoboticsDH-3	Adaptive^†	106 mm parallel / 122 mm centric^†	10-65 N per jaw^†	1.8 kg^†	+/-0.03 mm^†	TCP/IP standard; optional EtherCAT^†	Inquiry	Quote