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High Torque Induction Motors Manufacturers

High Torque Induction Motors

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Introduction

**Explosion-proof Single Phase Motors** are a specialized requirement for installations in hazardous areas (Zone 1/Zone 2) where only a single-phase utility supply is available. Because starting methods (e.g., capacitor start) can involve sparking components, the entire motor and its starting mechanism must be housed within a certified Ex d (flameproof) enclosure. These motors are generally limited to low power applications due to the inherent current limitations of single-phase power but provide an essential safe solution for remote or small-scale hazardous location duties.

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Why choose us?

Application Industries

  • Remote Pumping Stations: Powering small, essential pumps or ventilators at isolated oil and gas wells.

  • Laboratory Fume Hoods: Drives for extractors in chemical lab areas where volatile substances are handled.

  • Small Portable Equipment: Motors on mobile transfer pumps or temporary mixing rigs in hazardous zones.

  • Agricultural Storage: Small motors for grain conveyors or ventilation in areas with combustible dust.

Popular Industries And Applications

Key Specifications

Parameter Detail
**Phase/Voltage** Single Phase (e.g., $110 \text{ V}, 220 \text{ V}, 240 \text{ V}$)
**Power Limit** Typically $0.37 \text{ kW}$ to $2.2 \text{ kW}$ (Limited by starting torque)
**Protection Concept** Ex d (Flameproof enclosure required for starting components)
**Starting Method** Capacitor Start/Capacitor Run (CSCR) or Permanent Split Capacitor (PSC)
**Frequency** $50 \text{ Hz}$ or $60 \text{ Hz}$ versions available

Hardcore Parameters

Key Advantages

  • **Utility Connection:** Allows use of Ex equipment where only standard residential or small commercial power is available.

  • **Safety Compliance:** Fully certified to safely contain ignition sources from starting components within the hazardous area.

  • **Compact and Lightweight:** Suitable for small, non-critical drives where three-phase infrastructure is impractical.

  • **Reliable Startup:** Capacitor designs provide sufficient starting torque for low-power loads.

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Payment & Shipping Terms

  • **Voltage Selection:** Requires clear specification of the exact required voltage (e.g., $220 \text{ V}$ vs. $240 \text{ V}$) for the local supply.

  • **Certification Documents:** Documentation clearly states the Ex certification covers the capacitor and switch mechanism.

  • **Packaging:** Packaged securely to prevent damage to the capacitor housing during transit.

Frequently Asked Questions

Frequently Asked Questions

  • Q: Why are single-phase motors limited in power?
  • A: Single-phase power creates less rotating magnetic field, leading to poor starting torque and requiring high current for a given power, which is impractical for large motors.
  • Q: Can I use a single-phase motor with a VFD?
  • A: No. Standard VFDs are designed for three-phase input and output. A single-phase motor requires a separate, specialized single-phase inverter.
  • Q: What are the ignition risks in a single-phase Ex motor?
  • A: The main risks are the centrifugal switch (if used) and the capacitor housing (if exposed), which is why they must be fully contained within the Ex d flameproof enclosure.
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 High Torque Induction Motors Suppliers and Custom High Torque Induction Motors 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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