The M32-68-B series is a 32mm diameter brushed DC motor with an extended 68mm body length, delivering robust power for demanding applications. This motor platform is designed to provide higher torque output than standard 40–50mm length motors while maintaining a compact footprint, making it an excellent choice for industrial, medical, and robotics applications.
The M32-68 delivers rated torque from 0.15 to 0.40 Nm depending on winding selection, with peak torque reaching up to 2.0 Nm for short-duration overload conditions. No-load speeds range from 2,000 to 8,000 RPM, allowing designers to optimize for either high-speed or high-torque requirements. The motor achieves peak efficiency up to 90%, minimizing heat generation and power consumption-1-2.
The graphite brush commutation system offers significant advantages over standard metal brush designs, including longer brush life (up to 5,000 hours under typical conditions) and reduced electrical arcing for lower EMI-1-7. The 13-segment commutator provides smooth current transfer, contributing to stable torque output and minimizing sparking during operation-1.
Ball bearings on both motor ends provide low rotational friction and support radial loads up to 32 N at 5mm from the mounting flange, ensuring reliable operation under mechanical stress-1. Maximum allowable speeds range from 6,000 to 12,000 RPM depending on bearing selection, offering flexibility for high-speed applications-1-2.
The precision-machined steel housing provides dimensional stability and efficient heat dissipation. The rotor is dynamically balanced to minimize vibration, making this motor suitable for precision positioning applications in medical devices and laboratory automation. Optional IP54 sealing protects against dust and moisture in demanding environments.
OEM customers can specify winding configurations to match speed and torque requirements, select shaft diameters (5mm, 6mm, or 8mm) with flat, keyway, or D-cut geometries, and choose between ball bearings for high-speed operation or sleeve bearings for cost-sensitive applications. Custom lead wire lengths and connector terminations (Molex, JST, AMP, or custom) are available for volume orders. Planetary gearbox attachments with reduction ratios from 3:1 to 100:1 can be added for torque multiplication applications.
Each M32-68-B motor undergoes 100% final testing including no-load speed, current, insulation resistance, dielectric strength, and mechanical runout verification. Production follows ISO 9001:2015 quality management processes. RoHS and REACH compliance documentation is available.
