Stepper motor 42BYGH

two-phase steppertwo-phase12 V

Overview
It is a 1.8° two-phase open-loop stepper motor manufactured by Shanghai Siheng Motor Manufacturing Co., Ltd. Part of the 42BYGH family, the series offers multiple stack lengths and torque ratings suited for medium-torque positioning tasks. Torque-speed curves, wiring definitions and installation drawings are provided to support selection and integration.

Models

• 6 variants in the 42BYGH family (examples: 42BYGH233-0956 to 42BYGH260-0804)

Key features

• Step angle: 1.8°
• Two-phase excitation (bipolar)
• Designed for open-loop stepping with constant-current drive
• Drive reference: 24 V suggested (use driver with current regulation)
• Available torque-speed curves to match application requirements
• Complete wiring definitions and installation dimensions for mechanical/electrical integration

Applications

• Positioning tasks requiring precise open-loop control and medium holding torque
• Integration in motion-control systems, printers, CNC feeders, automation equipment and similar industrial devices

Technical specifications

• Rated voltage: 4–12 V
• Rated current: 0.4–0.95 A
• Holding torque: 0.16–0.6 kg·cm
• Weight: 220–480 g (model dependent)
• Motor length (stack length): 33–60 mm (model dependent)
• Drive mode: constant-current drive recommended (reference 24 V)
• Excitation: 2-phase
• Insulation class: Class B
• Insulation voltage: 500 V
• Insulation resistance: 100 Ω
• Available documentation: torque-speed curves, wiring definitions, installation dimensions