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Media / Novità su prodotti e servizi / Atlas Copco’s introduces Reverse Circulation kit for the DM45 and DML mid-range blasthole drills

Atlas Copco’s introduces Reverse Circulation kit for the DM45 and DML mid-range blasthole drills


June 10, 2013—Atlas Copco continues to expand its blasthole product offering with the addition of the reverse circulation (RC) kit for the DM45/50 mid-range blasthole drill. Based off proven systems, components, and technology the RC kit is designed to meet the demands of today’s expanding mining market by offering the added dimension of in-pit grade control.

A number of components are included with the optional kit, which can also be retrofitted on drills currently in the field. The cyclone arm allows for sampling from the ground or platform level, with a vertical raise and lowering function. A cyclone rotation of 160 degrees provides safe access for cleaning, maintenance, and attaching new sample hoses from ground level. The cyclone is a heavy duty system designed specifically with flexibility in mind. Some of the features of the cyclone assembly are: a hydraulic upper knife valve and pneumatic lower knife valve for collecting and isolating the sample; a hydraulic hinge between the dump box and cone splitter that allows for easy cleaning; a fixed cone splitter with primary and duplicate sample chutes. All cyclone and sample functions are all easily controlled from the operator’s cab.

A 66 liter dump box, with a steep cone for limiting sample hang up is part of the sample collection feature. The primary and duplicate ports can easily be adjusted from 4-15%. The Reverse Circulation Carousel has four 4.5 inch rod cups and offers a 145 foot (44 meter) maximum on-board capacity.

Some other components included with the RC kit are a blast box/discharge, a blow-down valve that offers internal valving that does not require any external three-way valving or unnecessary hosing above or around the rotation head, an above head dual swivel that eliminates the need for a below head air swivel, and a fully integrated sample hose management system that has been designed with safety and practicality in mind.

The DM45 and DML reverse circulation drills offer hole diameters ranging between 4 ½ inch – 5 ¾ inches (114 mm – 146 mm) with maximum hole depths of 145 feet (44 meters) based off on-board capacity.

For further information please contact:

  • Matthew Inge, Product Manager Mid-range Blasthole
    Atlas Copco Drilling Solutions LLC
    Telephone: 972-496-7400; Fax: 972-496-7425
    E-mail: Matthew.Inge@us.atlascopco.com
  • Justin Cocchiola, Communications Manager
    Atlas Copco Drilling Solutions LLC
    Telephone: 972-496-7400; Fax: 972-496-7425
    E-mail: Justin.Cocchiola@us.atlascopco.com

Atlas Copco is an industrial group with world-leading positions in compressors, expanders and air treatment systems, construction and mining equipment, power tools and assembly systems. With innovative products and services, Atlas Copco delivers solutions for sustainable productivity. The company was founded in 1873, is based in Stockholm, Sweden, and has a global reach spanning more than 170 countries. In 2012, Atlas Copco had 39 800 employees and revenues of BSEK 90.5 (BEUR 10.5).

Atlas Copco Drilling Solutions is a division within Atlas Copco’s Mining and Rock Excavation Technique business area. It develops, manufactures, and markets a wide range of rotary drilling equipment for use in surface mining, exploration, construction, water well, aggregate, and shallow oil and gas applications worldwide. The divisional headquarters and main production center are located in Garland, Texas, USA.