Drilling keys for Batteries

The AKB drilling key allows to significantly reduce the consumption of compressed air on drilling rigs; to increase the productivity of drilling rigs by reducing the costs of repair and heating (in winter) of pneumatic devices.
The AKB-3M2 drilling key consists of a key block, a column with a carriage and a control panel.
The AKB-CH impact-free two-speed drilling key is developed on the basis of the AKB-3M2 drilling key, which, in comparison with the serial automatic AKB-3M2 drilling key, has the following advantages:
- an additional two-speed gearbox of the AKB-CH drilling key provides higher torque (70 kNm versus 30 kNm).
- the moment is created by a non-impact action.
The design of the support of the AKB-Ch drilling key is borrowed from the AKB-3M2 drilling key.

Diameter of screwed and unscrewed pipes, mm:
- drilling - 89-216
- casing - 114-194
Note: Permissible wear of drill joints, mm – 9
Pneumatic motor power, kW - 13
Compressed air pressure in the pneumatic system (at the control panel), MPa (kgf/cm2) - 0.7-1.0 (7-10)
Overall dimensions (length x width x height), mm, no more than:
- key AKB-3M2 - 1730x1013x2380
- key AKB-CH - 1780x1230x2610
Weight, kg, no more than:
- key set AKB-3M2 – 2700-3300
- key set AKB-CH – 3300
Average service life before write-off, years, not less than - 7 years.