PMB31B-20216-01
Wake Industrial LLC is not an authorized distributor of this product.
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The Pacific Scientific PMB31B-20216-01 is part of the PMB Brushless Servomotors series and features a NEMA Size 34 motor with an IP40 enclosure rating. It delivers a continuous stall torque of 2.1 Nm, a rated speed of 2900 rpm, and a peak stall torque of 4.1 Nm. The motor weighs 2.5 kg and has a length of 134.1 mm.
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Product Description:
The Pacific Scientific PMB31B-20216-01 is a smaller servomotor of the PMB series, ideally suited to giving precise control of motion with effective performance.
It is constructed to the NEMA Size 34 standard and therefore retains a small footprint, but provides the torque and speed required in light to medium-duty applications. Connection is by electrical means through flying leads with MS-style connectors, which allow not only a reliable connection but are also easy to include in automation systems. The digital encoder with commutation that provides this model's high-resolution feedback operates at 4096 pulses per revolution. This accuracy allows movements to be fine-tuned, so the motor can be used in tasks that need smooth movement and high repeatability. Its single-stack length (stack multiple of 1) adds to its compactness without sacrificing its dependable torque performance.
The PMB31B-20216-01 is designed for long-term stable operation at steady loads with a continuous stall torque of 2.1 Nm and a continuous rated torque of 1.9 Nm. In applications requiring bursts of increased torque, the motor reached a peak stall torque of 4.1 Nm. At a rated rpm of 2900 rpm and a maximum of 4300 rpm on no-load conditions, it is flexible across both speed and torque-driven applications. Electrically, the motor has a nominal stall current of 2.7 ARMS at 240 VAC, and it needs approximately 5.3 ARMS when providing peak torque. It has a rotor inertia of about 0.14 × 10⁻³ kg·m², which enables it to accelerate and respond swiftly. The motor has a line-to-line inductance of 19.6 mH, a factor that promotes effective operation and constant current control. It can be purchased at Wake Industrial with a one-year warranty.
Frequently Asked Questions about PMB31B-20216-01:
Q: What is the continuous stall torque of the PMB31B-20216-01?
A: The PMB31B-20216-01 has a continuous stall torque of 2.1 Nm, providing stable and reliable performance in steady-load applications.
Q: What is the encoder resolution of the PMB31B-20216-01?
A: This servomotor is equipped with a digital encoder providing a high resolution of 4096 pulses per revolution (ppr), ensuring precise position feedback for smooth movement.
Q: What is the peak torque capacity of the PMB31B-20216-01?
A: The motor can reach a peak stall torque of 4.1 Nm, making it suitable for applications requiring bursts of increased torque.
Q: What is the rated speed of the PMB31B-20216-01?
A: The motor has a rated speed of 2900 rpm, and can achieve a maximum no-load speed of 4300 rpm, offering flexibility for both speed and torque-driven applications.
Q: What are the current requirements for the PMB31B-20216-01?
A: The motor requires 2.7 ARMS at nominal stall and about 5.3 ARMS for peak torque operation at 240 VAC.
