DTH Drill Bit QL40-115

 Rock drill bits Shank type: QL40, QL50, QL60, QL80 ; and DTH hammer bits hole diameter: 3'', 4'', 5'', 6'', 8''(85mm-350mm)

Down The Hole Hammer Introduction

The DTH Hammer, RC hammer is used to remove rock samples which are pushed through the machine with compressed air. When air is blown down the annulus (ring-shaped structure) of the rod, the pressure shift creates a reverse circulation, bringing the cuttings up the inner tube. When the cuttings reach a deflector box at the top of the rig, the matter is moved through a hose attached to the top of the cyclone.

The drill cuttings will travel around the cyclone until they fall through the bottom opening into a sample bag. These bags are marked with the location and depth of the place where the sample was collected and can be transported directly to the assay lab for analysis

Flat Face

An universal design, especially for hard and abrasive rock formation. Typically, flat face with hemispherical buttons design is the most popular choice. This kind of face shape is suitable for hard to very hard and abrasive rock formations in application with high air pressure. Good penetration rates an resistance to steel wash.

Dome/Hemispherical Buttons

Universal buttons for all rock formation, best suited to hardest and very abrasive rock formation.

ROSCHEN also produce all the size DTH Hammer

Down The Hole Hammer Parameters