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Motors for Cement Mills and Crushers Manufacturers

Motors for Cement Mills and Crushers

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Introduction

**High Torque Induction Motors** are engineered for applications that require significantly greater turning force either at startup (starting torque) or under peak load (breakdown torque) than standard motors provide. This is achieved through specific design modifications, such as deep-bar rotors or specialized winding configurations (e.g., double squirrel cage). These motors minimize the risk of stalling under heavy load conditions, ensuring reliable and robust performance when driving high-inertia equipment in hazardous or general industrial environments.

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Why choose us?

Application Industries

  • Plastic Extruders: Requiring high, consistent torque throughout the process range.

  • Hydraulic Presses: Motors that face high momentary torque spikes during the pressing cycle.

  • Pumps with High Shutoff Head: Requiring high breakaway torque to start against high static pressure.

  • Slab and Rolling Mills: Heavy material processing where torque surges are common.

Popular Industries And Applications

Key Specifications

Parameter Detail
**Torque Feature** High Starting Torque (e.g., up to $250\%$ of nominal) or High Breakdown Torque
**Rotor Design** Deep-Bar or Double-Cage Squirrel Cage Rotor
**Explosion Protection** Available in all Ex protection types, optimized for high load factor
**Current Draw** Higher starting current than standard motors (requires careful power system assessment)
**Efficiency** Available in IE3/IE4 classes, balancing torque with efficiency

Hardcore Parameters

Key Advantages

  • **Eliminates Stalling:** Guaranteed to overcome the static inertia and sudden load spikes of heavy-duty machinery.

  • **Superior Acceleration:** Faster speed ramp-up of high-inertia loads compared to standard motors.

  • **Robust Performance:** Specialized rotor construction provides enhanced mechanical strength to handle high torsional stress.

  • **VFD Versatility:** Optimized for performance over a wide speed range when paired with a VFD (vector control).

1-Minute Selection Guide

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  • **Consultation:** Our engineers consult on the load inertia and torque curve of the driven equipment to ensure the correct high-torque motor is selected.

  • **Testing:** Motors undergo full load and locked rotor torque testing to verify performance against specifications.

  • **Documentation:** Detailed torque-speed curves and locked rotor amps (LRA) figures are provided.

Frequently Asked Questions

Frequently Asked Questions

  • Q: How is starting torque increased in a squirrel cage motor?
  • A: By increasing the resistance of the rotor bars (often by using smaller bars or copper/aluminum alloys) or by using a double-cage design, which combines high resistance (high starting torque) and low resistance (high running efficiency) characteristics.
  • Q: Does high starting torque mean high starting current?
  • A: Generally, yes. There is a tradeoff: higher starting torque usually results in a higher locked rotor current (LRA), except for Slip Ring Motors, which use external resistance to mitigate LRA.
  • Q: Can I use a high-torque motor for a low-torque fan?
  • A: Yes, but it would be an expensive choice. High-torque motors are unnecessary for light loads and have a higher initial cost.
About

Who we are

Shanghai Pinxing Explosion-proof Motor Co., Ltd. is a high-tech enterprise specializing in the design, research and development, manufacturing, and service of motors and motor control products.

Shanghai Pinxing is a AAA manufacturer of electrical equipment in China, specializing in the production of more than 1000 varieties of large and medium-sized high- voltage flameproof and increased safety explosion-proof motors, large and medium-sized high-voltage AC motors (including asynchronous, synchronous, frequency conversion and wound rotor motors), various types of small& medium-sized low-voltage explosion-proof motors, AC motors and so on. As a China Motors for Cement Mills and Crushers Suppliers and Custom Motors for Cement Mills and Crushers Company, Our products are exported to more than 40 countries and regions at home and abroad which are widely used in the fields of coal mining, metallurgy, cement, paper making, environmental protection, petroleum, chemical, textile, road traffic , water conservancy, power, shipbuilding and other factories and enterprises. We are moving towards energy conservation, efficiency, environmental protection, integrated automation and internationalization. Shanghai Pinxing Explosion-proof Motor Co., Ltd aims to provide good motor products and motor technology solutions for global industrial enterprises and various fields, and make "Pinxing"motor become the motor technology solution provider and motor manufacturer in the global motor industry.

Pinxing.

Shanghai Pinxing Explosion-proof Motor Co., Ltd. Shanghai Pinxing Explosion-proof Motor Co., Ltd.
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