PMB33C-20216-01 Pacific Scientific
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The Pacific Scientific PMB33C-20216-01 is a brushless servomotor that is part of the PMB Brushless Servomotors series. It features a NEMA Size 34 frame, a square key shaft design, and a nominal stall current of 3.8 ARMS at 240 VAC. The motor uses a digital encoder with commutation, providing an encoder resolution of 4096 pulses per revolution.
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Product Description:
The PMB33C-20216-01 is a brushless servomotor produced by Pacific Scientific as part of the PMB Brushless Servomotors series. It is intended for use on precision axes where rapid acceleration and accurate holding are required, such as indexing tables, carton formers, and multi-axis pick-and-place heads. By converting controlled current from a servo drive into rotary motion, the unit supplies consistent torque within compact NEMA-style mounting dimensions, supporting space-limited machine frames common in modern automation cells.
Power and feedback conductors exit the housing as flying leads with MS connectors, allowing quick mating to standard servo wiring harnesses. The frame follows the NEMA Size 34 pattern so existing brackets and gearheads designed for this footprint can be reused. When supplied from a 240 VAC amplifier, the motor can withstand a nominal stall current of 3.8 ARMS. This is the current the drive must source during static holding or peak load events. Rotor position is reported by an internal digital encoder with commutation that delivers 4096 ppr feedback, giving the controller 12-bit resolution for speed and position loops. Output torque is transferred through a shaft machined with a square key, ensuring positive engagement with couplings during frequent start-stop cycles.
Ingress at the front bearing is limited by a shaft seal, permitting installation in lightly contaminated environments without external covers. The electromagnetic core is built with a stack length multiple of 3, increasing active iron volume and raising continuous torque compared with shorter variants. The motor is intended for use with Pacific Scientific drives, and shared mechanical standards across the PMB Brushless Servomotors family support installation on equipment built around this motor platform.
Frequently Asked Questions about PMB33C-20216-01:
Q: What type of connector does the PMB33C-20216-01 servomotor use?
A: The PMB33C-20216-01 motor utilizes flying leads with MS connectors for electrical connections.
Q: What is the shaft configuration of the PMB33C-20216-01?
A: A square key shaft design is featured on this model for secure mechanical coupling.
Q: What is the motor size of the PMB33C-20216-01?
A: The PMB33C-20216-01 servomotor is built to NEMA Size 34 standards.
Q: What type of encoder and resolution does the PMB33C-20216-01 provide?
A: This motor offers a digital encoder with commutation and a 4096 ppr resolution.
Q: Does the PMB33C-20216-01 include a shaft seal?
A: A shaft seal is included as a customization option for this servomotor.
