7.5kW Motor
What is a 4kW Motor?
The 7.5kW motor is a core model for heavy-duty industrial applications, featuring an extended 132M frame size that complies with national standards and is manufactured in strict accordance with GB/T 755 and IEC 60034 international electrical standards. Representing the benchmark entry-level power rating for high-capacity industrial equipment, it boasts four key upgrades-high torque via an extended stator core, high impact-load resistance, long-term stability under full load, and robust environmental adaptability. These features effectively resolve common industry issues associated with lower-power motors in heavy-duty applications-such as insufficient power, rapid thermal degradation, and frequent overloading-when operating under conditions involving large-scale machinery, heavy loads, or high-frequency shock loads.
The 7.5kW rating is ideally suited for mining operations, large-scale fluid handling systems, heavy-duty conveyors, and integrated engineering equipment, capable of withstanding rigorous operating conditions such as 24-hour continuous full-load operation, intermittent high-impact loads, and fluctuating load demands.
Models
Features
- 132M Extended Heavy-Duty Frame with Superior Load-Bearing Capacity: Featuring an extended 132M stator core and frame structure, this design offers comprehensive upgrades over the shorter 132S model-including increased core length, more winding turns, and expanded heat dissipation cavities. The motor body boasts significantly enhanced mechanical rigidity, as well as superior resistance to deformation and resonance. It withstands the high-frequency vibrations and continuous shock loads typical of large-scale equipment without misalignment, resonance, or structural fatigue, ensuring long-term operational stability in heavy-duty applications that far surpasses that of standard short-frame motors.
- Delivering high torque output, it ensures smooth, stall-free starts under heavy loads. Featuring an electromagnetic design with large slots specifically engineered for heavy-duty applications-alongside optimized air-gap ratios and winding configurations-the motor offers a significantly boosted starting torque ratio and ample torque reserves. It effortlessly overcomes the immense static resistance associated with large water pumps, high-pressure fans, crushers, and hoists, ensuring stable heavy-load startups while eliminating common issues such as sluggish starts, stalling, tripping, and failure to start under load.
- Features thickened windings made of genuine copper, ensuring low energy consumption, long service life, and resistance to thermal degradation. The unit utilizes a high-purity oxygen-free copper winding process with increased thickness and density, resulting in high conductivity and minimal internal resistance losses. Paired with a high-permeability, low-loss silicon steel core, this design significantly reduces copper and iron losses during full-load operation. Through a process of triple vacuum-pressure impregnation and high-temperature curing, the coils achieve exceptional structural integrity and a dense insulation layer; the unit offers outstanding resistance to high temperatures, variable-frequency pulses, and aging, ensuring sustained full-load performance without power degradation or abnormal temperature rise.
Products Description
|
Model |
Y2 Series 7.5kW Motor |
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Frame |
132 |
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Power |
7.5kW |
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Speed |
3000rpm, 1500rpm, 1000rpm |
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Voltage |
220/380V, 230/400V, or customization |
|
Frequency |
50HZ/60HZ |
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Efficiency |
IE1, IE2, IE3, IE4 |
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Motor shaft diameter |
Φ38 |
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Cooling |
Fan |
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Protection |
IP44/IP54/IP55 |
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Housing |
Aluminum/Cast Iron |
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Ambient temperature |
-15℃≤0℃≤40℃ |
|
Altitude |
No exceeding 1000 meters |
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Duty |
S1 |
Drawings
Installation position
Our advantages
Production
Application
Company Profile
FAQ
Q: Are additional cooling measures required for full-load operation in an enclosed workshop during the hot summer?
A: No additional cooling is needed under standard operating conditions. The 132M extended frame features an exceptionally large thermal margin; its industrial-grade, enhanced heat dissipation structure is robust enough to handle summer heat, enclosed workshop environments, and round-the-clock full-load operation. Forced air cooling may be installed as needed only for extreme heat combined with a lack of ventilation and prolonged low-speed, full-load operation, in order to further enhance stability.
Q: How do the operational characteristics differ when a 7.5 kW heavy-duty motor is configured for belt drive versus coupling drive?
A: This model supports the two mainstream drive methods, making it adaptable to various heavy-duty applications. Direct coupling drive offers higher precision and superior coaxial alignment; it ensures vibration-free operation with minimal transmission loss, making it ideal for the long-term, constant-load operation of water pumps, fans, and precision conveying equipment. In contrast, belt drive offers the advantages of overload cushioning and adjustable speed ratios; it absorbs the shock of sudden stalls or jams, making it suitable for heavy-duty machinery subject to fluctuating loads-such as crushers, mixers, and material hoists-while ensuring stable performance through the simple matching of drive components and spacing calibration.
Q: Will a high-power 7.5kW motor experience a drop in power factor or increased power consumption when operating at full load for extended periods?
A: No, there will be no degradation in power factor or additional power consumption. The motor features optimized electromagnetic windings and a low-loss core; its factory-rated power factor is as high as 0.86, placing it at a high level of industrial energy efficiency. Even during continuous 24-hour full-load operation, magnetic field parameters remain stable and losses stay extremely low, preventing any rise in reactive power loss or spikes in energy consumption. Furthermore, when paired with a variable frequency drive (VFD), energy efficiency can be further optimized, making it well-suited for long-term, energy-efficient factory production.
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