Product Description:

The PMB33F-10216-02 is a brushless servomotor produced by Pacific Scientific as part of the PMB Brushless Servomotors series. It is intended for closed-loop motion axes where precise position and speed control are required, such as indexing tables, packaging machinery, and pick-and-place gantries. By combining permanent-magnet torque generation with an integral feedback device, the motor supplies continuous, ripple-reduced torque that can be directly synchronized with a digital drive controller.

Drive sizing is guided by the nominal stall current of 11.0 ARMS at 240 VAC, which helps match the power stage without risking overcurrent trips. The frame conforms to the NEMA Size 34 envelope, so the housing mates with standard U.S. servo mounting patterns and flanged gearheads. Rotor position is reported to the drive through an optical encoder that produces 4096 ppr, permitting fine interpolation for smooth low-speed regulation and tight positioning. Motor power and feedback conductors exit the housing as flying leads with MS connectors, a configuration that simplifies cable routing while maintaining sealing at the cable interface. This arrangement is well suited for compact multi-axis equipment.

A digital encoder with commutation is mounted on the rear shaft extension, eliminating separate Hall devices and allowing electronic alignment routines to begin immediately at power-up. Thermal protection is handled by an embedded PTC thermistor; when winding temperature rises toward its trip point, the drive can enter a controlled shutdown to prevent insulation damage. The motor employs a round shaft, making it compatible with clamp-style couplings and servo bellows that do not require a keyway. Magnetic energy is increased by a stack length multiple of 3, which boosts continuous torque without altering the external frame size and allows higher load acceleration within the same mechanical envelope.