flagעברית
flagEnglish
3 Rabinovich St., Petah-Tikva, Israel
+972 3 9047744
office@amironic.co.il
LinkedIn
YouTube
Product was added to your cart

Cart

waze

GM33 Step Motor

High Torque, Low noise, Small size

Home Products Motors Step Motors with Gearbox GM33 Step Motor
Motor Step Angle: 7,5°, full step
Number of Phase: 2, bipolar
Insulation resistance: 100 MΩ, 500Vdc
Insulation class: E
Coil Resistance/Induction: 9Ω/10mH
Max temp. (motor housing): 60 °C
Racc. temp (motor housing): 35-45 °C
Nominal voltage: 12V
Voltage driver: 3,6 – 36V
Max axial/radial shaft load: 5N/10N
Max allow torque: 25 Ncm
Max current (continuous): 250 mA
Max current (non-contin.): 500 mA
Operating temp.: -20 °C/+65 °C
GM33 Series - GM33-90-25
WP Data Tables
Stepper Gearmotor Driver Available
The step-motor is a synchronous electric motor with pulsed direct current and brushless electronic control which can divide its rotation into a large number of steps. Unlike brush DC motors, the position of the motor can be accurately controlled without an encoder (feedback).
Stepper Driver - GM-STEP-DRIVER-1

The GM33 series is a medium-size stepper gearmotor engineered for precision applications where reliable torque, smooth motion, and accurate positioning are essential. Featuring a 7.5° full-step angle, 2-phase bipolar design, and gearbox ratios from 10:1 up to 90:1, the GM33 delivers stable holding torque and versatile performance in a compact housing length of 39.5–44.5 mm.

Technical Highlights

  • Motor type: 2-phase bipolar stepper motor

  • Step angle: 7.5° (full step)

  • Nominal voltage: 12 V (driver range 3.6 – 36 V)

  • Coil resistance/induction: 9 Ω / 10 mH

  • Insulation class: E

  • Insulation resistance: 100 MΩ at 500 VDC

  • Maximum housing temperature: 60 °C (recommended 35–45 °C)

  • Operating temperature range: –20 °C to +65 °C

  • Shaft loads: up to 5 N axial, 10 N radial

  • Maximum torque: 25 Ncm

  • Continuous current: 250 mA (500 mA peak)

  • Driver: compatible with GM-STEP-DRIVER-1

Gearbox Options

Model Ratio Length (mm) Holding Torque (mNm) Max Speed (rpm)
GM33-10-25 10:1 39.5 400 150
GM33-21-25 20.8:1 39.5 400 72
GM33-43-25 43:1 44.5 400 35
GM33-90-25 90:1 44.5 400 17

This range allows the GM33 to be configured for moderate-to-low speeds with stable torque, making it an excellent choice for positioning, automation, and laboratory systems.

Advantages

  • Accurate positioning: step resolution ensures precise control without encoders.

  • Compact mid-size design: length of 39.5–44.5 mm balances strength with compactness.

  • Stable torque: holding torque up to 400 mNm across multiple ratios.

  • Flexible gearing: available ratios up to 90:1 for torque-speed optimization.

  • Durable construction: optimized for light-to-medium duty axial and radial loads.

Suggested Applications

  • Industrial Automation

    • Dosing pumps, labeling machines, and compact conveyors.

  • Medical & Laboratory Equipment

    • Microfluidic systems, analyzers, and positioning units.

  • Optical & Imaging Systems

    • Camera control, filter wheels, and scanning modules.

  • Consumer & 3D Printing Devices

    • Desktop CNC machines, 3D printers, and vending systems.

  • Robotics & Mechatronics

    • Grippers, pick & place units, and small actuators.

The GM33 Step Motor with Gearbox provides precise, reliable, and versatile motion control in a compact design. With gearbox ratios from 10:1 to 90:1, torque capacity of 25 Ncm, and holding torque up to 400 mNm, the GM33 is ideal for engineers developing automation, robotics, laboratory, and consumer applications requiring accurate positioning in limited space.