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ARO 7700 and 7790 Series Spark Resistant Chain Hoists

7700 and 7790 Series Spark Resistant Hoists meet ASME B30.16 specifications and are designed for Division 1 applications where the atmosphere contains hazardous concentrations of flammable gases, dust or other materials under normal operating conditions. Specifically engineered for continuous heavy-duty industrial applications, these spark resistant hoists are available with a bronze top hook or a trolley adapter suspension.

Spark Resistant Design:

  • Stainless steel load chain and solid bronze hooks to prevent accidental sparking
  • Zinc-plated pull chain
  • Reduced hoist capacities and locked speed adjustments to maximize chain life
  • Trolley models supplied with bronze wheels
  • Optional pendant control handles with industrial-grade vinyl grip

Division 1 Applications:

  • Spark-resistant air hoists are required
  • Atmosphere containing hazardous concentrations of flammable gases, dust or fibers, continuously, frequently or periodically, under normal operating conditions

Division 2 Applications:

  • Standard air hoists are required
  • Atmosphere is normally non-hazardous, but contains hazardous concentrations of flammable gases, dust or fibers when a container, handling system or ventilating system fails

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