Product Description:

The PMB33C-10216-03 brushless servomotor is produced by Pacific Scientific within the PMB Brushless Servomotors series. As a permanent-magnet actuator for closed-loop motion, it translates drive current into accurate angular displacement for positioning tables, pick-and-place modules, and compact gantry axes on industrial assembly lines. Its lightweight design and integrated sensing allow the motor to mount directly at the point of use, which reduces mechanical compliance and supports rapid cycle times in automated equipment.

Beneath the frame, the motor follows the NEMA Size 34 mounting envelope, so it fits the common 3.4-inch square pilot used throughout servo platforms. When energized from a 240 VAC amplifier, its stator can sustain a nominal stall current of 3.8 A RMS without exceeding thermal limits. Rotor position is reported by a 4096 ppr incremental encoder, and commutation signals from the same sensor establish electrical angle. That feedback element is a digital encoder with commutation, giving fine resolution and commutation data through one cable set. Power and signal conductors exit the housing as flying leads with MS connectors, permitting quick attachment to shielded trunk lines while helping keep cable routing orderly in compact machine spaces.

Mechanical coupling is managed by a round shaft machined to industry-standard tolerances, simplifying direct clamp or collet connections. The magnetic core uses a stack length multiplier of 3, which increases active iron and copper mass so higher continuous torque can be delivered within the same face dimensions. For ingress protection, a factory-installed shaft seal blocks oil migration along the journal. An embedded PTC thermistor provides a temperature-dependent resistance signal that allows the drive to initiate an orderly shutdown when the winding approaches its thermal limit. This arrangement supports reliable use on axes that repeat short acceleration and deceleration cycles throughout normal machine operation.