pneumatic drilling unit / hydraulic / single-spindle
Min.: 500 rpm (3,141.6 rad.min-1)
Max.: 21,000 rpm (131,946.9 rad.min-1)
Min.: 0 mm (0 in)
Max.: 50 mm (1.97 in)
Min.: 0.37 Nm (0.27 ft.lb)
Max.: 12.6 Nm (9.29 ft.lb)
The basic design of the BE 33 consists of a vane motor powered by compressed air, a pneumatic cylinder, and a closed hydraulic system. The total stroke length can be variably subdivided into rapid advance and working feed over the whole range. The throttle/check valve in the hydraulic system permits exact setting of the feed rate and high speed return.