Hammer Drill

Drilling System for Down The Hole Hammer

ALLAME Down The Hole (DTH) Hammer Drill systems are engineered for high-performance drilling in difficult ground conditions. Whether you work in mining, quarrying, geotechnical, or in a water well drilling industry, our pneumatic hammer drills provide solid penetration and lasting reliability.

What is a DTH Hammer?

The Down The Hole (DTH) hammer is a compressed air drilling tool designed to impact great energy directly into the drill bit. It is positioned at the lower end of the drill string, directly on top of the drill bit, and is operated by compressed air. It enables drilling through hard rock strata with quick penetration rates where conventional rotary techniques can flounder or fail.

DTH hammers are particularly suitable for deep boreholes, where straight and optimal drilling paths are very important. They are highly suited to a range of businesses, including mining, infrastructure, and water well development.

How It Works

It works by repeatedly striking the bit, while the whole mechanism spins. This double-action — rotary plus percussive impact — pulverizes rock more quickly and with superior energy transfer than surface hammers.

Compressed air — from a high-pressure air compressor — forces a piston within the hammer body. The piston travels up and down very fast, while smashing the bit with enough force. Conversely, the air stream sweeps the cuttings from the borehole, maintaining a clean and efficient drill path.

Top Benefits of ALLAME DTH Hammer Drills

• Excellent Rock Penetration: Ideal for extremely hard formations like granite, basalt, and quartz.

• High Drilling Speed: Enhanced energy transfer means more progress in less time.

• Precision Holes: Provides clean and precise holes for blasting and water well casing.

• Extended Tool Life: Features wear-resistant materials and simplified internal elements for prolonged service life and ease of maintenance.

• Lowers vibrations: As an air tool, there are very few vibrations thanks to how it works, protecting the equipment and the operator.

• Water Management Ability: Works even in high water table areas without losing its efficiency.

Applications

• Exploration and production of mining

• Quarry operations

• Foundations piling and anchoring

• Geotechnical investigations

• Drilling of water wells and geothermal drilling

Available Models and Sizes

ALLAME DTH hammers are suitable for use with drill bits with a diameter of 76.2 mm – 254 mm. Every hammer model is also designed to achieve the best energy payout through the lowest pneumatic consumption, allowing for fuel cost savings without sacrificing power.

ALLAME DTH Hammer Drills – Why you should choose us?

• Competitive durability and penetration rate performance

• X internal design reduces maintenance, reduces risk of breakdowns•

• Very low total cost of ownership due to long service intervals

• Engineered and manufactured under strict quality controls

• Supported with technical assistance and spare parts availability

Get in contact to our technical team in order to find out more info and details about which DTH hammer system is more suitable for your project. Whether you are drilling through fractured rock or building deep foundations, ALLAME Thrust Boring & Drilling Solutions has the right equipment to do the job quickly, safely and in the most cost-effective manner.