PMB33C-00101-02
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The Pacific Scientific PMB33C-00101-02, part of the PMB Brushless Servomotors series, features a lightweight design at just 0.25 kilograms. It operates at 24V DC, has a pressure range of 0 to 1.0 MPa, and supports DIN rail or panel mounting. The valve boasts IP65 protection and a durable aluminum alloy body.
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Product Description:
The Pacific Scientific's PMB33C-00101-02 Brushless Servo Motor features a standard NEMA size 34 frame, facilitating mechanical compatibility in a variety of applications. This servo motor features an 8-pole rotor design, which provides increased torque at lower speeds and enables smoother performance with varying loads.
This motor’s magnetic structure features Neodymium Iron Boron magnets, which provide increased torque density while keeping efficiency as high as possible across various speeds. This brushless motor provides a rated torque of 4.84 Nm, designed for continuous-duty applications with stable torque requirements. For maximum load conditions, this servo motor offers a maximum torque rating of 16.1 Nm to operate in tough dynamic applications. To generate this amount of torque, the PMB33C-00101-02 servo motor needs a peak current of 8.7 Arms, which helps it supply short-term high-power output without affecting stability. The nominal stall current of this brushless motor is 3.8 Arms, which is the current consumed when the rotor gets locked while operating under full torque to prevent thermal overload. The electrical configuration of this motor consists of a voltage constant of 1.11 Vrms/rad/sec for smooth speed control and compatibility with different servo drives.
Its line-to-line inductance of 27.2 mH minimizes ripple current and optimizes motor control in applications with demand for smooth torque transitions. The thermal resistance of the PMB33C-00101-02 brushless servo motor is 0.78 °C/Watt, facilitating effective heat dissipation for long periods of continuous high-power operation. The flat shaft design of this motor provides tight mechanical coupling and reduces the possibility of slippage during load. This servo motor’s maximum static friction is rated at 0.169 Nm, which assists in maintaining precise position control when idle. With a motor-only weight of 6.3 kg, the frame provides vibration resistance and mechanical balance.
Frequently Asked Questions about PMB33C-00101-02:
Q: Why is a Hall sensor used in this motor model?
A: The Hall sensor provides reliable rotor position feedback, enabling precise commutation. It ensures smooth motor startup and stable speed regulation in servo systems.
Q: How does the flat shaft help in mechanical integration?
A: The flat shaft prevents slippage by allowing secure coupling with load systems. It ensures better torque transmission and mechanical stability under varying operational conditions.
Q: How does the 8-pole configuration benefit the PMB33C-00101-02 motor?
A: The 8-pole design enhances torque generation at low speeds and improves control accuracy. This is particularly useful in applications requiring smooth operation under varying loads.
Q: Why is 27.2 mH line-to-line inductance important in PMB33C-00101-02?
A: Higher inductance helps minimize current ripple and electromagnetic interference. It improves the motor’s response to drive signals in sensitive applications.
Q: How does 0.78 °C/Watt thermal resistance impact motor performance?
A: This low thermal resistance enables better heat dissipation during extended operation. It ensures the motor remains within safe thermal limits under continuous loads.
