Diamond Drilling

General Drilling Rigs

Diamond drilling rigs used by the majority of Drilling Contractors can vary in design but the basic principal remains constant. The base plate of the drill stand is secured to the concrete/brick to be drilled either by rawlbolt, acrow prop, vacuum pad or weights. Generally Diamond Motion use Hilti  products for their proven track record.
Electric, hydraulic or air can be employed to power the units. Drilling bits start at 10mm and can go to as large as 1 metre or more. Drilling depths are virtually unlimited using barrel extensions.

Usually a water feed is used through the driving shaft, to keep the diamonds cool, the cutting free of grit, and generally assist in reducing wear. Water also totally eliminates dust. Using a Diamond Drill for cutting concrete and Directional Drilling reduces envoironmental pollution.
This technique is used when precise circular cuts are needed, to create openings for example, for plumbing, electrical and heating/ventilation installations. Core drilling is commonly used to create the holes for routing cables or for placing anchor bolts, for installing load carrying devices or for concrete sample analysis.
A core drill bit consists of a steel tube with diamond segments brazed or welded on the drilling end, and mounted on a rotating shaft. Core drill machines can be operated in either vertical or horizontal direction.

Trailer Rigs

A drill rig unit can also be fitted to a mobile two-wheel trailer to form a specialist trailer drilling rig capable of being towed behind a van or car. These drilling rigs are used for specialist operations such as core sampling and installation of motorway barriers etc.