PMB33C-00216-00
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The Pacific Scientific PMB33C-00216-00 is part of the PMB Brushless Servomotors series and features a NEMA Size 34 frame with flying leads and MS connectors. This motor offers a continuous stall torque of 5.42 Nm and a peak torque of 16.1 Nm. It is rated up to 6000 RPM and weighs 6.3 kg (13.8 lbs).
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Product Description:
The Bosch Rexroth Indramat’s PMB33C-00216-00 Brushless Servomotor comes with flying leads and MS connectors for safe electric connection. This motor comes with an 8-pole design, which facilitates smooth delivery of torque and provides steady rotational performance even at reduced speeds.
The peak torque of 16.1 Nm enables this servo motor to meet high-load acceleration requirements without loss of performance. This servo motor employs a digital commutation encoder, offering 4096 pulses per revolution, which enables high-resolution feedback for accurate positioning. The current of 8.7 Arms at peak torque ensures this motor can provide its maximum torque output without loss of electrical stability. Its torque constant of 1.86 Nm/Arms allows accurate torque prediction per ampere supplied to ensure consistent performance under varying loads. This motor’s line-to-line inductance of 27.2 mH ensures smooth current regulation and suppresses high-frequency electrical noise. With a rated speed of 1300 RPM at 240V AC, the PMB33C-00216-00 servomotor is capable of sustained high-speed operation in applications requiring precise movements. The nominal stall current of this motor is rated at 3.8 Arms to enable continuous hold torque without exceeding safe operational thermal limits.
This brushless motor is also compatible with a 320V DC bus to allow use in DC-driven systems while maintaining consistent performance output and motor responsiveness. This motor's 0.78 °C/Watt thermal resistance provides effective heat dissipation for continuous operation under heavy load modes without overheating. Its maximum static friction of 0.169 Nm provides a jerk-free start-up to enable accurate control in low-speed cases. The PMB33C-00216-00 brushless servomotor utilizes a neodymium-iron-boron magnet to provide high magnetic flux for high torque density. It weighs 6.3 kg and gives a balance between mechanical stability and compactness in installation within small machinery configurations.
Frequently Asked Questions about PMB33C-00216-00:
Q: How does the neodymium-iron-boron magnet material benefit the PMB33C-00216-00 servomotor?
A: These magnets provide a higher magnetic flux density, increasing torque output while keeping the motor compact. This allows for higher efficiency in space-limited machinery.
Q: Why is an 8-pole configuration used in the PMB33C-00216-00?
A: An 8-pole setup delivers smoother torque at lower speeds and minimizes torque ripple. This results in more stable motion in precision applications.
Q: How does the viscous damping coefficient affect motor performance?
A: It reduces mechanical vibrations during acceleration and deceleration. This improves motion smoothness and reduces wear on connected mechanical systems.
Q: What is the advantage of having a digital encoder with 4096 pulses per revolution?
A: This high resolution allows for extremely precise position feedback. It improves closed-loop control accuracy in applications requiring fine motion adjustments.
Q: Why is the line-to-line inductance important in a servomotor like the PMB33C-00216-00?
A: Higher inductance helps stabilize current regulation and suppress electrical noise. This results in smoother torque delivery and improved control at varying loads.
