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

  • Powerful piling rig from Soilmec
    October 25, 2022
    The SC-135 Tiger is Soilmec's new top-of-the-range piling rig, designed to be productive and reliable with low downtime and maintenance costs.
    Read More
  • New ADTs offer low emissions performance and fast cycle times
    December 2, 2014
    Its incredible versatility means that the articulated dumptruck (ADT) has become a popular piece of equipment for quarrying or earthmoving applications. For quarrying in particular, the machines are highly useful as they are able to cope with steeper ramp hauls and tougher terrain than rigid haulers offering similar payloads.
    Read More
  • Sons of the soil
    April 4, 2012
    New regulations and technology are driving change in the soil compaction sector - Mike Woof reports. The impact of the Tier 4 Interim/Stage IIIB emissions regulations has been hard on some machine sectors in particular. Sloping engine covers have been introduced in several equipment categories as a way of improving visibility for operators, including soil compaction machines. At the same time, new machine guidance technologies have been developed and introduced to the soil compaction market, boosting produc
    Read More
  • Cat’s new backhoes
    April 11, 2013
    The new Cat 434F backhoe loader is solely mechanically controlled, while its fellow new backhoe model, the Cat 444F, is equipped with pilot joystick controls and can be fitted with either a 4.27m or a 4.87m backhoe. The upgraded machines are part of Caterpillar’s development of its equal-sized tyre (EST) machine range in line with the rest of the F Series product family. In the European Union (EU), the Cat F Series backhoe loaders feature the EU Stage IIIA emissions standard Cat 4.4 engine. These are said
    Read More

Highlighted Content