SFI Series 75W 24VDC Frameless Torque Motor 0.063Nm 25mm Frame Diameter

This SFI Series frameless inner-rotor torque motor features a 24VDC voltage, 75W rated power, 11275RPM rated speed and 0.063Nm rated torque. With a frameless inner-rotor design and no traditional housing, shaft, bearings, or end covers, the motor can be directly integrated into mechanical structures for a more compact and lightweight system. Designed for high acceleration, frequent start-stop operation, and space-constrained applications, it is ideal for robots, aerospace equipment, precision machinery, medical devices, and other high-end automation systems.

Key Features

• Low cogging torque for smooth operation
• High dynamic response with excellent heat dissipation
• Built-in thermistor for real-time motor temperature monitoring
• Large inner through-bore design, compatible with encoders, cables, hoses, and more
• Standardized dimensions optimized to match mainstream harmonic reducers on the market

Electrical Specification

• Part Number: 25SFI08-2408-006B
• Voltage: 24VDC
• Rated Power: 75W
• Number of Poles: 14
• Rated Torque: 0.063Nm
• Maximum Instantaneous Torque: 0.204Nm
• Rated Speed: 11275RPM
• Maximum Speed: 13530RPM
• Rated Current: 4.3±5%A
• Maximum Instantaneous Current: 15±5%A
• Torque Constant: 0.015Nm/A
• Back EMF Constant: 1.25V/krpm
• Insulation Class: F
• Ambient Temperature: -20~40℃

Physical Specification

• Outer Diameter: 25mm
• Rotor Inner Diameter: 11.6mm
• Total Height: 15.2mm
• Weight: 0.025kg