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BY PM Stepper Motor 20BY25-036A
BY PM Stepper Motor 20BY25-036A

The 20BY25-036A is a high-torque BY PM stepper motor delivering 45 gf·cm rated torque with a 15° step angle, operating at 7 VDC, designed for compact positioning applications requiring strong torque output and stable low-speed performance.

Why Choose This BY PM Motor

  • High torque output in a compact 20 mm frame
  • Smaller 15° step angle for improved positioning resolution
  • Stable low-speed performance under load
  • Simple 2-phase drive with 2–2 excitation
  • Insulation Class F for improved thermal endurance

Where This BY PM Motor Is Used

  • Compact industrial actuators
  • Valve and damper control mechanisms
  • Adjustment and positioning devices
  • Instrumentation and measurement equipment
  • Light industrial motion-control systems

Contact us for pricing, full technical details, and available customization options.

BY PM Stepper Motor 20BY25-036A

BY PM Stepper Motor 20BY25-036A is engineered for applications requiring higher torque density, stable stepping behavior, and compact mechanical integration. The motor adopts a 2-phase permanent magnet structure with a 2–2 exciting method and a 15° step angle, delivering strong torque output with reliable positioning performance.

Key electrical and mechanical characteristics include:

  • Rated Voltage: 7 VDC
  • Rated Torque: 45 gf·cm
  • Phase: 2
  • Exciting Method: 2–2
  • Step Angle: 15°
  • No-load Speed: 1500 RPM
  • Phase Resistance: 11 Ω
  • Dielectric Strength: 500 VDC
  • No-load Pull-out Frequency: ≥ 700 Hz
  • No-load Pull-in Frequency: ≥ 400 Hz
  • Temperature Rise: 115 °C
  • Insulation Class: F
  • Noise Level: ≤ 50 dB
  • Operating Temperature: −10 °C to +50 °C
  • Outer Diameter: 20 mm
  • Height: 16.5 mm
  • Weight: 24 g

The 20BY25-036A is well suited for compact systems where higher torque, controlled low-speed motion, and long-term reliability are required.

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