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Underground Rock Drills are built for low-noise operation.

Press Release Summary:

Model BBC 16 WS, BBD 34 WS, and BBD 94 WE are silenced light rock drills, intended for underground applications, that full comply with ATEX directive. Together with BMK 91RS pusher leg, BBD 94 WS model passes entire process according to directive 94/9/EC, while heavy duty stopers BBC 34 WS6 and BBC 34 WS8 are designed for tough working conditions in drilling, raise driving, and bolting applications and are suitable for medium to hard rock.

Original Press Release:

New Light Underground Rock Drills from Atlas Copco

Atlas Copco introduces a range of silenced light rock drills for underground applications. A modified rock drill has passed the ATEX process and now fully complies to ATEX directive. Two versions of a new heavy-duty stoper are introduced.

Sound emission is an issue for surface and underground rock drilling. "Today customers more and more demand a silenced version of their rock drill", explains Rikard Nordén, Product Line Manager Light Rock Drills. To meet the demand, a range of three silenced rock drills is launched. "The sound power levels of our BBC 16 WS, BBD 34 WS and BBD 94 WE have been reduced by 5-8 dB(A), depending on the model", Nordén adds. "For the human ear this is perceived as a reduction of more than 50 %."

BBC 34 stoper

Some technical modifications have contributed to achieve compliance with ATEX directive for the BBD 94 WS model together with BMK 91RS pusher leg. "Our only Atlas Copco light rock drill that has passed the whole process according to directive 94/9/EC," explains Nordén. ATEX (ATmosphère EXplosible) directive consists of two EU directives describing what equipment and work conditions are allowed in an explosive atmosphere.

BBC 34 WS6 and BBC 34 WS8 are new heavy duty stopers. They are designed for tough working conditions in drilling, raise driving and bolting applications. They are suitable for medium to hard rock and benefit from a high impact energy blow and a strong rotation mechanism.

Atlas Copco is an industrial group with world-leading positions in compressors, construction and mining equipment, power tools and assembly systems. The Group delivers sustainable solutions for increased customer productivity through innovative products and services. Founded 1873, the company is based in Stockholm, Sweden, and has a global reach spanning more than 170 countries. In 2009, Atlas Copco had about 30 000 employees and revenues of BSEK 64 (BEUR 6.0). Learn more at

Atlas Copco Construction Tools is a division within Atlas Copco´s Construction and Mining Technique business area. It develops, manufactures and markets hydraulic, pneumatic, and petrol-driven equipment for demolition, recycling, compaction, rock drilling and concrete applications. Products are marketed and sold under several brands through a worldwide sales and service organisation. The division is headquartered in Stockholm, Sweden, and has production units in Europe, Africa and Asia.

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