Shut down of suction for water holes for Boom surface drills

When drilling through wet layer, dust collector sucks water into filter elements very easily. Water and dust forms cement-like layer to the filters which is difficult to clean and which prevents correct operation of filters.

This can be avoided by switching off the suction immediately when water is noticed with the suction shut-down system. The suction is switched off by closing the suction flap valve of the dust collector. The flap valve is operated by a cylinder and the control lever is located at the control panel or at radio remote.

• Allow to shut down suction system when drilling through wet layer.

• Avoid dust filters to be clogged by water/dust mix.
• Increase life of the dust filter and reduce maintenance time and cost.