Gast oil-lubricated air motors

Gast's oil-lubricated vane air motors in the AM series convert compressed air into mechanical energy. The compressed air pushes the vanes out from the eccentrically mounted rotor, and an extended shaft on the rotor does the work. The series ranges from the compact 1AM, rated at 0.42 hp (0.30 kW) with up to 10 000 rpm, to the 16AM, rated at 9.0 hp (6.7 kW) with a maximum torque of 372 in-lb (42 Nm). The motors have variable speed, run cool and can be mounted in any position.

The 1AM, 1UP, 2AM and 4AM are the smaller and most compact models, while the 6AM, 8AM and 16AM cover higher power requirements. Gast describes the motors as built for durability and suitable for use in potentially explosive areas and at extreme temperatures, with shock-free, instant start, stop and reverse. The motors have no electrical components, which according to Gast reduces the risk of explosion, and the data sheets state compliance with EN 13463-1 for non-electrical equipment in potentially explosive atmospheres (group II, category 2, gas and dust, surface temperature 135 °C).

The motors are supplied with several mounting options – hub, foot, face, NEMA C flange or metric D interface – and with clockwise, anticlockwise or reversible rotation. Four-vane and eight-vane models are available. Typical applications are mixing equipment, conveyor drives, pump drives, food and pharmaceutical packaging, hoists and winches, hose reels, fibreglass cutters, tensioning devices and turntables. The maximum operating pressure is 100 psi (7 bar) for the AM models and 80 psi (5.6 bar) for the 1UP.