Step Motors with Gearbox


Type	GM31	GM32	GM33	GM34
Nominal voltage (V)	12	12	12	12
Voltage Driver (V)	3.75÷36	9.2÷36	3.6÷36	3.75÷36
Reductions	12÷1470	10÷391	10÷90	14÷630
Max Torque (Ncm)	50	20	25	100
Holding Tourqe (mNm)	600÷800	220÷400	400	700÷1500
Max Speed (rpm)	1÷122	4÷150	17÷150	2÷105
Length (mm)	35	26÷36	39.5÷44.5	43.3÷51.3
Driver	GM-STEP-DRIVER-1 (Link)

Step Motors with Gearbox – Comparison Table

Series	Gear Ratios	Max Torque (Ncm)	Holding Torque (mNm)	Max Speed (rpm)	Length (mm)	Typical Applications
GM31	12 – 1470	50	600 – 800	1 – 122	35	Robotics joints, automation fixtures, precision dosing systems
GM32	10 – 391	20	220 – 400	4 – 150	26 – 36	Compact devices, 3D printers, optical instruments, light conveyors
GM33	10 – 90	25	~400	17 – 150	39.5 – 44.5	Medium-speed automation, lab equipment, pick & place mechanisms
GM34	14 – 630	100	700 – 1500	2 – 105	43.3 – 51.3	Heavy-duty positioning, CNC subsystems, packaging machines, medical beds

GM31 Step Motor

The GM31 Step Motor with Gearbox offers compact precision motion with gear ratios up to 1470:1. Delivering up to 800 mNm holding torque in only 35 mm length, it is ideal for robotics, lab equipment, and automation systems.

GM32 Step Motor

The GM32 Step Motor with Gearbox offers precise motion in a compact 26–36 mm design.
With gear ratios up to 392:1 and holding torque of 400 mNm, it is ideal for medical devices, lab equipment, 3D printers, and compact automation.

GM33 Step Motor

The GM33 Step Motor with Gearbox combines precise positioning with compact design (39.5–44.5 mm).
With gear ratios up to 90:1 and holding torque of 400 mNm, it is ideal for automation, robotics, and laboratory applications.

GM34 Step Motor

The GM34 Step Motor with Gearbox delivers high torque and precision in a compact 43–51 mm design.
With ratios up to 630:1 and holding torque up to 1500 mNm, it is ideal for automation, CNC, robotics, and heavy-duty applications.

Step Motors with Gearbox