Product Description:

The PMA21B-01100-00 is a compact brushless servomotor manufactured by Pacific Scientific within the PMA Brushless Motors series. It is intended for industrial automation tasks that need repeatable positioning and speed control, such as light pick-and-place modules or small conveyors. Integrated resolver feedback reports shaft position to the drive so that closed-loop regulation can be maintained across the full speed range.

This model delivers a continuous stall torque of 0.63 Nm, allowing it to hold loads at zero speed without overheating, while a peak output of 2.3 Nm is available for short acceleration bursts. The stator winding draws up to 2.7 ARMS under stall conditions, and its insulation is rated for supplies up to 240 V AC max, so it pairs with mid-voltage servo amplifiers. A square motor frame measuring 70 mm on each side simplifies mounting to standard metric flanges. The low rotor inertia of 0.022 kg·m² × 10⁻³ helps the axis follow rapid command changes with minimal overshoot. Additional hardware details include a smooth shaft for press-fit couplings, a 6PP power connector that groups three phases and protective earth in one plug, and a stack length code of 1, which indicates the shortest available magnetic core.

Total mass is 1.7 kg, which limits payload on light gantries while still providing adequate thermal mass for intermittent duty. Cabling exits through a right-angle connector orientation, reducing the required enclosure depth, and the factory-installed 24 V brake secures the load when power is removed. No additional special design features are listed. Integration therefore focuses on standard environmental sealing, resolver feedback wiring, and correct drive settings for the stated torque, current, and voltage limits.