Atlas Copco's new rotation unit

A new series of rugged, hydraulically-powered rotation units for use with any type of DTH (down-the-hole) hammer in the 92-203mm range as well as ITH (in-the-hole) underground production work with Simba drill rigs, has been introduced by Atlas Copco. The DHR 6 is the latest unit in the company's well known DHR series and complies with demands for air pressure of up to 35 bar and a maximum torque of 6kNm. This means the unit will allow a DTH hammer to be run at much greater power, significantly accelerating
July 19, 2012 Read time: 2 mins
The latest rotation unit from Atlas Copco, the DHR 6 is said to pave the way for high-powered DTH drilling and offers easier maintenance and serviceability
A new series of rugged, hydraulically-powered rotation units for use with any type of DTH (down-the-hole) hammer in the 92-203mm range as well as ITH (in-the-hole) underground production work with Simba drill rigs, has been introduced by 161 Atlas Copco.

The DHR 6 is the latest unit in the company's well known DHR series and complies with demands for air pressure of up to 35 bar and a maximum torque of 6kNm. This means the unit will allow a DTH hammer to be run at much greater power, significantly accelerating the drilling rate.

"In addition, the DHR 6 has been improved for maintenance and serviceability. Air inlet seals can be more easily replaced and there are inspection holes and hatches for checking possible oil leakage," says Atlas Copco.

The unit is mounted on the Atlas Copco surface crawler rigs ROC L625, ROC L630, ROC L825, ROC L830 and is also suitable for all Simba ITH production drilling rigs.

Earthmoving & soil compaction

For more information on companies in this article

Related Content

  • Sandvik’s new DT912D jumbo offers intelligent drilling efficiency
    June 17, 2016
    Sandvik Construction is introducing what it says is a completely new tunneling jumbo, the DT912D, especially for limestone applications. The DT912D - a high reach, single boom jumbo - is completely self-contained. It is powered with a fuel-efficient and environmentally friendly Tier 4 Final diesel engine and equipped with onboard compressor and water tank for air-mist flushing. Sandvik says the state-of-the-art control system will bring increased productivity in both tunneling and underground mine pro
    Read More
  • Challenging Colombian tunnel completed
    May 30, 2024
    A tunnel stretch on Colombia’s Santa Fe - Cañasgordas highway is complete – Mauro Nogarin reports
    Read More
  • CIFA introduces new tunneling machines
    December 1, 2014
    CIFA recently introduced a series of new tunnelling machines, with a keynote launch being for the Coguaro4. Designed to be both compact and productive, the Coguaro4 is 2.5m tall and its drum has a maximum capacity of 4m3. Versatile and manoeuvrable, the machine features an innovative electrically operated hydraulic transmission, a hydraulic pump and two hydraulic motors mounted directly on the axles. This configuration is said to ensure maximum drive, reliability and minimum fuel consumption. Four driving a
    Read More
  • Developments in diesel technology are a focus for producers
    January 19, 2016
    The diesel engine manufacturers are continuing their development of low emission engines as well as solutions for markets where fuel quality is an issue - Mike Woof writes. Developments in diesel engine technology are the continued focus for manufacturers facing tough challenges around the world. New low emission engines are being developed for developed markets such as Europe and the US, with Europe now taking a further step ahead to target pollutants from the tailpipe. Meanwhile firms are also looking int
    Read More

Highlighted Content