PMB31D-20216-03

Product Description:

The PMB31D-20216-03 servo motor from Pacific Scientific is part of the tough PMB Brushless Servomotors lineup. This motor gets built for jobs that call for quick movement and steady output, running speeds of up to 10,000 RPM. Frame size lands at NEMA Size 34, a sturdy fit for mid-sized machines where space’s not too tight but too big a unit won’t fit. Rated stall current is 5.4 ARMS (or 5.4 A), so force comes on fast but stays in control. The 8-pole design pushes power in a steady pattern, while neodymium magnets handle the heavy lifting on acceleration or quick starts.

Connections happen through flying leads outfitted with MS connectors, so wiring is less of a fuss and makes swapping out a little easier when something goes down. Inside, a resolver feedback system keeps tabs on motion all the way through, mostly so accuracy doesn’t drift—even at higher speeds. Digital encoder with commutation sensor means every twist gets counted accurately. There’s also 4096 ppr encoder resolution, keeping signals sharp when’s tracking or corrections happen on the fly. A 1x stack length multiplier factors into balancing size with performance, while mounting settles into NEMA bracket styles that most plants will already know.

Dust or grit don’t get far with IP40 protection, set up to block most debris from normal shop floors, though not totally water-tight for harsh washdowns. Corrosion-resistant neodymium keeps its edge longer, even in areas where the air gets rough or greasy. Heat is tamed by standard build, no extreme extras, but enough to keep running under industrial stress cycles. With tough parts and peak feedback, this motor tackles CNC setups, packing arms, small conveyors, or anywhere repeated quick moves have to finish without drift or chatter.