0.75kW Motor
What is a 0.75kW Motor?
The 0.75 kW three-phase asynchronous motor is a standard, high-performance, low-power drive unit for industrial automation. Precision-manufactured in strict accordance with GB/T 755 and IEC 60034 international standards, it features a totally enclosed die-cast aluminum housing and high-density pure copper windings. Unlike standard auxiliary motors, this model delivers constant torque output, maintains stability under full load, and offers robust resistance to load-induced performance degradation; it is engineered for continuous operation as a primary drive unit, capable of sustained S1-duty, round-the-clock full-load performance.
The unit undergoes high-precision mechanical calibration and electrical performance optimization, resulting in minimal torque fluctuation, stable energy efficiency, and a low failure rate. It serves as a versatile, core power unit for automation machinery, integrated light industrial equipment, and primary fluid-handling systems.
Models





Features
- Comprehensive coverage across all operating conditions and pole counts: Supports customization for 2, 4, 6, and 8-pole configurations and offers selectable speeds of 3000, 1500, 1000, and 750 rpm. It is highly adaptable to diverse equipment requirements-ranging from high-speed air supply and constant-speed transmission to low-speed heavy-load operation and precision speed reduction-ensuring excellent suitability for various applications.
- High-density pure copper windings ensure long-lasting temperature resistance and durability. Constructed using high-purity oxygen-free copper wound at high density-and utilizing vacuum pressure impregnation and high-temperature curing processes-the windings achieve superior sealing and insulation. The design minimizes coil losses and ensures uniform heat distribution, eliminating overheating risks during prolonged, continuous full-load operation; furthermore, resistance to aging and voltage surges significantly extends the unit's overall service life.
- Class F high-temperature insulation with high overload tolerance: It utilizes a Class F insulation system rated for 155°C-far exceeding standard insulation ratings-enabling it to withstand short-term load fluctuations and pulse voltage surges associated with variable-frequency drives. This high operational tolerance effectively reduces the risk of equipment failure caused by sudden load changes in industrial environments.
Products Description
|
Model |
MS Series 0.75kW Motor |
|
Frame |
80 |
|
Power |
0.75kW |
|
Speed |
3000rpm, 1500rpm, 1000rpm |
|
Voltage |
220/380V, 230/400V, or customization |
|
Frequency |
50HZ/60HZ |
|
Efficiency |
IE1, IE2, IE3, IE4 |
|
Motor shaft diameter |
Φ19 |
|
Cooling |
Fan |
|
Protection |
IP44/IP54/IP55 |
|
Housing |
Aluminum/Cast Iron |
|
Ambient temperature |
-15℃≤0℃≤40℃ |
|
Altitude |
No exceeding 1000 meters |
|
Duty |
S1 |
Drawings

Installation position

Our advantages

Production








Application



Company Profile



FAQ
Q: Is a 0.75 kW motor stable when operating continuously at full load as the primary drive for the equipment?
A: It is highly stable. This model is specifically designed for industrial S1 continuous full-load operation. It features constant torque, excellent winding heat dissipation, and a high insulation class. Unlike low-power auxiliary motors, it supports 24-hour uninterrupted full-load operation without power degradation or overheating failures, making it an ideal choice as the primary drive for compact integrated equipment.
Q: What are the advantages of a constant-torque design for automation equipment?
A: Under constant-speed operating conditions, torque fluctuations are minimal, resulting in higher precision for material transport, power transmission, and overall operation. It eliminates issues such as inconsistent speeds, material misalignment, and transmission jitter, thereby effectively enhancing the production stability and product pass rate of the automation equipment.
Q: Is this motor suitable for variable-frequency speed control? Is the torque stable during variable-speed operation?
A: It supports wide-range variable-frequency speed control; the reinforced insulation windings withstand voltage pulses from the variable-frequency drive (VFD). It delivers constant torque in the medium-to-high speed range, ensuring smooth speed adjustment without jitter. For long-term operation at extremely low speeds, forced air cooling is recommended to ensure effective heat dissipation.
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