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Mincon releases next-generation DTH hammer

Published by , Editor
Global Mining Review,

Mincon’s latest innovation that will help make a difference at drill sites is its next-generation 4 in. down the hole (DTH) hammer, the Mincon MP40, which redefines performance with proven speed increases of up to 40%, depending on ground conditions, and fuel consumption improvements of up to 11.5%.

The MP40 is an evolution of the company’s 4 in. DTH hammer range, which previously comprised a number of different models. With the introduction of the new modular design, MP40 creates a family of hammers that use a common internal design while supporting a variety of 4 in. shanks and drilling configurations. This engineering approach means the MP40 family offers the same benefits across all models: faster penetration, higher efficiency, and a lower cost-per-metre.

There are three variants of the MP40: MP40-TD, MP40-MQ, and MP40-MP. The TD and MQ versions both support the TD40 shank, with the MQ variant having the benefit of requiring bits without a foot-valve. For drillers who have more demanding applications, the MP variant supports drill bits that use Mincon’s own MP heavy duty shank.

The MP40-MQ was tested rigorously during development to ensure that it delivered increased performance and longevity, without compromising efficiency. In testing at an active limestone quarry in Dubai, the MP40-MQ delivered penetration rates of up to 1.1 m/min.– an increase from 0.79 m/min. achieved with the site’s previous equipment on the same Epiroc D50 drill rig.

In this instance, the MP40-MQ result was able to reliably perform at a higher air pressure (30 bar vs 24 bar) without compromising reliability. During testing, no failures were reported by the customer and performance was maintained even after more than 5000 m of drilling.

At a separate independent test at a gold mine in Senegal, the MP40 was pitted against the company’s 4HRTD DTH hammer. In this instance the MP40-MQ delivered a speed increased of 12%, with average penetration rates of up to 18 m/h in the hard, gold ore-bearing rock.

However, this improved performance does not come at the expense of fuel consumption. At a quarry in Leicestershire, UK, the MP40-MQ delivered 12% higher penetration rates compared to the Mincon 4HRTD when drilling in extremely abrasive granite rock. Additionally, the MP40-MQ saw an 8% decrease in engine load on the drill rig, which resulted in an 11.5% improvement in fuel consumption.

Despite the harsh drilling conditions at the granite quarry, the internals of the MP40-MQ showed minimal wear after more than 10 000 m of drilling – resulting in ongoing savings for the customer.

With an increasing focus on emissions, drillers will increasingly look to use equipment and suppliers that will help reduce their carbon footprint, as well as lower costs. With exhaustive testing at sites around the world, Mincon’s next-generation tools have been proven to get work done faster while using less fuel and offering higher durability.

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Gold mining news Mining equipment news