Electro-pneumatic drilling unit with electro-rheologic brake system
12 mm VC Otto Suhner AG

This innovative system allows the electronic control of the pneumatic feed paths and speeds. SUHNER therefore offers an extremely low cost alternative to CNC technology.
Electrorheology allows the speed to be changed at any point over the cylinder's advance and return strokes. Now other cycles are possible as standard in addition to the normal drilling cycle "rapid traverse advance - working traverse - rapid traverse return".
- chip removal (peck drilling)
- intermittent feed (chip breakage)
- jump function (two walled drilling of pipes)
- various feed speeds e.g. for shouldered holes (countersinking)
- reverse countersinking

Total stroke 80 mm
Thrust at 6 bar 1470 N
Speed range at 50 Hz 35-7730 min-1
Concentricity 0,02 mm
Motor rating at 50 Hz 0,75 KW
Standard voltage at 50 Hz 230/400 V
Toolholder Collets ER 25