Air hydraulic drilling unit BE(f) 22.

The basic design of the BE(f) 22 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 across the whole range. The throttle/check valve in the hydraulic system permits exact setting of the feed rate and high speed return.

Facts
. Power 250 [W]
. Speed (idle) 500–22 000 [rpm]
. Torque* 9,9–0,25 [Nm]
. Thrust (max) 600 [N]
. Stroke (max) 30 (60) [mm]
. Min CCSS** 45 [mm]
. Run-Out*** <0.03

Functions:
. Extremely compact design
. Built-in hydraulics for controlled working feed
. Adjustment of drilling depth with positive stop guarantees a high degree of accuracy
. Low noise level
. Minimal air consumption

Necessary components
. Chucks
. Collets
. Limit switches

Accessories
. Multi-spindle heads
. Controls