2 Types Explosion-Proof Electric Chain Hoists for Hazardous Zones: Gas & Dust Protection

Explosion-proof electric chain hoists, that is, based on ordinary chain electric hoist, motor, electrical appliances, and some parts to take explosion-proof measures, according to the different environments, divided into gas explosion-proof and dust explosion-proof.

Explosion-proof electric chain hoists features:

  • Use of the environment, temperature -20 ℃ ~ +40 ℃, altitude of 1000m or less, relative humidity of 95%, can prevent dripping occasions.
  • Rated lifting capacity 1t~35t.
  • Grid fluctuation at ±10%.
  • Applications: military, nuclear industry, aviation, aerospace, machinery manufacturing, petroleum, chemical and other industries.

Types of explosion-proof electric chain hoists

Explosion-proof electric chain hoists with motorized trolley

3 explosion proof electric chain hoist1
3.1 explosion proof electric chain hoist

    Parameters

    Capacityt122335101520253035
    Lifting speedm/min6.86.83.45.43.42.72.81.91.41.10.90.7
    Lifting motorPowerkw1.531.53333.0×23.0×23.0×23.0×23.0×23.0×2
    Rotation speedr/min144014401440144014401440144014401440144014401440
    Phases333333333333
    VoltageV220-440220-440220-440220-440220-440220-440220-440220-440220-440220-440220-440220-440
    Operating motorPowerkw0.40.40.40.40.40.750.75×20.75×20.75×20.75×20.75×20.75×2
    Rotation speedr/min10/2010/2010/2010/2010/2010/2010/2010/2010/2010/2010/2010/20
    Operating speedm/min144014401440144014401440144014401440144014401440
    Phases333333333333
    VoltageV220-440220-440220-440220-440220-440220-440220-440220-440220-440220-440220-440220-440
    I-Beammm80-16082-18782-187100-178100-180110-180150-220150-220150-220150-220150-220150-220

    Hook suspension fixed explosion-proof electric chain hoists

    4 Fixed explosion proof electric chain hoists

      Parameters

      Capacityt122335101520253035
      Lifting speedm/min6.86.83.45.43.42.72.81.91.41.10.90.7
      Lifting motorPowerkw1.531.53333.0×23.0×23.0×23.0×23.0×23.0×2
      Rotation speedr/min144014401440144014401440144014401440144014401440
      Phases333333333333
      VoltageV220-440220-440220-440220-440220-440220-440220-440220-440220-440220-440220-440220-440

      Explosion-proof hoists for the environment

      Explosion-proof hoists are suitable for use in explosive gas environments Zone 1 and Zone 2 or combustible dust environments Zone 21 and Zone 22.

      Temperature GroupMaximum permissible surface temperature  ℃
      TA or TBT1450
      T2300
      T3200
      T4135
      T5100
      T685

      Class II explosion-proof hoist explosion-proof level and the corresponding temperature group applicable explosive gases are listed below:

      Explosion-proof gradeTemperature Group
      T1T2T3T4T5T6
      IIAEthane, propane, styrene, benzene, xylene, carbon monoxide, acetone, acetic acid, methyl acetate, ammonia, pyridineEthanol, butane, propylene, ethyl acetate, methylene chloride, vinyl chloride, chloroethanol, thiophene, cyclopentane, dimethylaminePentane, hexane, ethylcyclopentane, turpentine, naphtha, petroleum (including military gasoline), fuel oil, chlorobutane, tetrahydrothiopheneAcetaldehyde, trimethylamineEthyl nitrite
      IIBPropyne, acrylonitrile, hydrogen cyanide, coke oven gasEthylene, ethylene oxide, methyl acrylate, furansDimethyl ether, acrolein, tetrahydrofuran, hydrogen sulfideDibutyl ether, diethyl ether, ethyl methyl ether, tetrafluoroethylene
      IICHydrogen, water gasEthyne C2H2Carbon disulfideEthyl nitrate

      Dust class explosion-proof hoist each anti-dust structure form and the corresponding temperature groups of combustible dust to adapt to the following table:

      Dust explosion-proof formTemperature Group
      TA、T1 or TB、T1TA、T2 or TB、T2
      A or BMagnesium, red phosphorus, calcium carbide, soap powder, green fuel, phenol dyes, polyethylene, polypropylene, polyurethane, polyvinyl chloride, hard rubber, natural resins, rosin, wheat flour, corn starch, granulated sugar powder, cotton fiber, synthetic staple fiber, anthracite powder, charcoal powder, coal coke powderSifted Rice Flour, Cocoa Flour, Malt Flour, Flax Meal Flour, Coconut Flour, Peat Flour, Lignite Flour, Bituminous Coal Flour, Coal Flour for Coke, Lignite Coke Flour

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