Miners are under great risk when they undertake a procedure called bolting; a way of preventing rocks falling or ceiling collapse. The usual way is to use bolting rigs (bolting machines) that drill and screw in 3-meter long bolts in the mine tunnel. However while doing this, the miners also get exposed to unbolted (not reinforced) ceilings while executing manual tasks. The Boltec .04 is a bolting rig that adds an extra protection.
Designer: Dawid Dawod