ASME, OSHA and MSHA Regulations all require that a Holdback or Backstop device be installed on incline, decline or vertical conveyors where the effect of gravity, in the event of a motor or gearbox breakdown, will allow uncontrolled lowering/sliding of the cargo causing a potential hazard to workers. Our Holdbacks are also used on flat, overland conveyors to prevent the stress problems a loaded belt can suffer at start-up. AIRMATIC’s line of Holdbacks, fitted directly on the shaft of drive pulley, provide economical and dependable protection not only against worker injuries, but also against flooded load zones and ruined equipment as a result of unwanted belt reversal.