The 57STH45M20X01 is a 57 mm hybrid stepper motor with a 0.9° step angle and 700 mNm holding torque. It has a bipolar winding configuration with 2.00 A rated current per phase (2-phase ON), 1.35 Ω resistance per phase, and 5.2 mH inductance per phase. The motor features ball bearings, a maximum coil temperature of 130 °C (Class B), and a rotor inertia of 180 g·cm². It supports 400 steps per revolution and operates within an ambient temperature range of -20 °C to +50 °C. The motor weighs 520 g and uses AWG22 UL1007 leadwires. Maximum radial force is 75 N at 20 mm from the flange, and maximum axial force is 15 N. Insulation resistance is 100 MΩ at 500 VDC, with a dielectric withstand voltage of 500 VDC for one minute.
57STH45 High Precision Hybrid Stepper Motor
57STH45M
The 57STH45-High Precision is a 2 phases 0.9° hybrid stepper motor. This high resolution stepper motor has half the step angle of standard stepper motors. The high precision type increases motor resolution from 200 steps/revolution to 400 steps/revolution. Smaller step angles can be achieved by half-step driving or microstep driving. If the pulse speed is within resonance region, vibration may increase. The stopping accuracy improves as the torque increases while minimizing the negative effect of the frictional load. Resonance regions can be avoided by switching to a 0.9° high-resolution type stepper motor.
Product Highlights
Applications
| Portescap | |
|---|---|
| Product Category | Stepper Motors (rotary) |
| Product Number | 57STH45M20X01 |
| Product Name | 57STH45 High Precision Hybrid Stepper Motor |
| Holding Torque | 99 In-oz (70 N-cm) |
