Air hydraulic drilling unit BE 33.

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.

Facts:
. Power 360 [W]
. Speed (idle) 500–21 000 [rpm]
. Torque* 12,6–0,37 [Nm]
. Thrust (max) 800–1 000 [N]
. Stroke (max) 50 [mm]
. Min CCSS** 65 [mm]
. Run-Out***

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

Necessary components
. Chucks
. Collets
. Limit switches

Accessories
. Multi-spindle heads
. Controls