15HP Motor
What is a 15HP Motor?
The 15HP (11KW) three-phase asynchronous motor is a golden, essential power model for mid-range heavy-duty industrial equipment, and it is also one of the most widely used standardized power configurations in the global automation equipment, environmental water treatment, and rubber and plastics chemical industries. Unlike small-power motors, which are only suitable for light-load intermittent operation, and large-power motors, which suffer from excessive energy consumption and cost redundancy, the 11KW motor is precisely matched to the core operating conditions of small and medium-sized heavy industrial equipment, including continuous constant load, variable frequency speed regulation, and dynamic load fluctuations. It balances power performance, equipment adaptability, and cost-effectiveness.
- Featuring a one-piece cast structure, this motor boasts superior resistance to resonance and fatigue. Utilizing a 160M precision cast iron base, it features seamless construction, uniform stress distribution, and thickened end caps and reinforced bearing seats. This design effectively withstands structural fatigue caused by high-frequency starts and stops, continuous vibration, and load impacts from heavy industrial equipment. Long-term operation will not result in shaft misalignment, loose end caps, or base resonance cracking. The overall structural stability and fatigue life far exceed those of ordinary split-cast motors, making it suitable for 24-hour continuous heavy-duty production.
- High-precision dynamic balancing calibration ensures quiet and low-vibration operation for heavy-duty applications. The rotor of the entire machine adopts an industrial-grade double-end-face dynamic balancing correction process, with balancing accuracy far exceeding that of ordinary motors, reducing mechanical vibration and resonance noise at the source. Designed for long-term continuous operation on assembly lines, dense equipment operation in indoor factories, and low-noise requirements for municipal environmental protection equipment, this model controls both no-load noise and full-load vibration values within the industry's superior range. It eliminates high-frequency abnormal noises and body resonance, ensuring that the workshop production environment meets standards while reducing secondary failures such as loose screws, coupling wear, and uneven bearing wear caused by long-term equipment vibration.
- Standardized and universal structure, with extremely strong equipment replacement compatibility. The whole machine is mass-produced in strict accordance with the IEC 160M international standard dimensions. The shaft diameter, keyway, mounting hole spacing, flange size, and wiring position are completely universal in the industry. There is no need to modify the equipment frame, re-drill holes for alignment, or adjust the transmission structure. It can directly replace old motors, greatly reducing equipment modification time and modification costs, and is suitable for batch technical transformation projects.
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Model |
15HP motor |
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Frame |
160 |
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Power |
15 Horse power 11KW |
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Speed |
3000rpm, 1500rpm, 1000rpm |
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Voltage |
380/400V, 400/690V or customization |
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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℃ |
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Altitude |
No exceeding 1000 meters |
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Duty |
S1 |
Installation position
Q: Is slight heat generation of the 15HP motor normal?
A: Under industrial S1 continuous duty, a warm motor body is a normal physical phenomenon. This model is equipped with a Class F insulation system, which has high temperature resistance. As long as the motor body is not hot to the touch, has no burning smell, does not trip frequently, and does not vibrate abnormally, the full-load temperature rise is within the allowable range. If rapid heating occurs and the casing becomes extremely hot to the touch, it is most likely due to overload, unstable voltage, or blocked air ducts. Timely cleaning and maintenance will restore normal operation.
Q: How to solve the low-speed vibration problem of an 11KW motor under variable frequency operation?
A: Low-speed vibration is mostly caused by improper matching of ordinary frequency converter parameters and insufficient low-frequency torque compensation. This 15HP motor has a built-in frequency converter anti-harmonic structure. Simply enable the low-frequency torque boost function on the frequency converter and adjust the carrier frequency to perfectly solve the problems of low-speed vibration and unstable speed. For long-term low-frequency speed regulation production, heavy-duty frequency converters should be selected first, with reserved power margin, for better speed regulation accuracy and stability.
Q: Is a 15hp medium-heavy-duty motor suitable for use in areas with long-term power grid fluctuations?
A: Absolutely. This 15HP motor undergoes power grid fluctuation simulation testing at the factory, exhibiting extremely high three-phase current balance and excellent voltage adaptability. It can withstand ±10% of normal power grid fluctuations and will not experience frequent tripping, power attenuation, or winding overheating due to voltage instability.
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