Antispark chain hoist ARO 77 series

air-operatedtrolleyheavy-duty

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