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The Pacific Scientific POWERMAX II M Series motors with SIGMAX technology represent some of the most powerful steppers available. These 2-phase NEMA 23 sized hybrid stepper motors offer high torque per motor size, ranging from 0.67 to 1.79 N-m (95 to 253 oz-in) nominal holding torque, and speeds up to 3,000 rpm. They feature a polymer encapsulated stator for excellent thermal dissipation and a polymer end bell with threaded inserts, enhancing cooling efficiency and providing flexibility for mounting encoders and brakes. Exposed laminations further improve thermal dissipation, contributing to longer motor life.
Technical Specifications
Heat Dissipation Environment
Still air at 40 degrees C (without heat sink)
Low Inertia Rotor Torque Range
178-252 oz-in (1.26-1.78 Nm)
Operational Warning
Exceeding rated current may cause demagnetization
Small Signal Inductance
Measured at 1kHz, 1 amp
Stack Type
1 rotor stack
Temperature Rating For Windings
130 degrees C
Thermal Resistance
Motor hanging in still air (unmounted)