Dalper Chile - Drilling tools

Bellex pins consist of a steel tube selected alloy, equipped with a welded cap at each end. By the inflation of the PIN with water at high pressure, the bolt expands along its entirety until it is in full contact with the rock.

Corrosion protection: all the Bellex bolts may be coated with a special enamel highly elastic for protection against corrosion, which can be applied at the factory.

-Installation at the front, without danger to the operator using a spear's length.

-Unneeded chemicals - instant support along the length - great ability to withstand variations in rock - excellent capacity of elongation due to the elasticity of steel