PMB33C-20216-03

Product Description:

The PMB33C-20216-03 brushless servomotor from Pacific Scientific steps up for motion automation jobs that call for both muscle and detail. All the main specs point to tough performance – the motor shows off its NEMA Size 34 body, which matches industrial machines without taking up extra room. The continuous stall torque reaches 5.42 Nm and goes all the way up to 16.1 Nm peak torque at jump start, so both steady and sharp bursts get handled well during use. The frame itself keeps to 6.3 kg, not heavy for a motor that manages torque this size.

Precise moves happen by way of a digital encoder using 4096 ppr resolution—accuracy stays solid cycle after cycle. The encoder solution comes paired with commutation features, giving the controller the right reading at each turn. Setup gets a slight boost thanks to flying leads with MS connectors, skipping slow wiring or swapping. Motor wires feed out for flexible routing and quick hookups, not locking the installer or maintenance worker into strict cable paths. The build has the stack length set at 3, helping torque output across all speeds, while a nominal stall current of 3.8 ARMS keeps draw right for power panels in standard factory settings.

Thermal build takes some of the worry out of temperature swings—insulation and a thermal resistance of 0.78 °C/W let it stay cooler even if duty hours climb up. Thermal time constant lands at 32 min, keeping thermal creep in check for longer processes. Mechanical bits round everything out: static friction, 0.169 Nm and inertia, 0.404 kg·m²×10⁻³, team up for controlled starts and quicker speed changes that don’t get too choppy.