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GW Hammer Series

GW Hammer Series. What is a GW Hammer?.

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GW Hammer Series

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  1. GW Hammer Series

  2. What is a GW Hammer? • The GW series of DTH hammers from Halco Rock Tools offer breakthrough performance in the world’s most challenging Geothermal and Waterwell applications. Available in 4”, 5” and 6”, the GW hammers benefit from a robust non ported piston design which dramatically improves piston performance when drilling under a column of water. • A built in choke facility allows the driller to adjust the volume of air through the hammer to optimise cuttings evacuation to even further optimise drilling performance. GW500 and GW600 hammers are fitted with a reversible cylinder to maximise operating life and are suitable for operation at air pressures up to 30 bar (435 psi). The innovative design leads to outstanding rates of penetration, durability and service life.

  3. GW Hammer Range 4” 5” 6”

  4. Environments GW Hammers are being used? • GW hammers have been used in challenging conditions around the globe: • Scandinavia- The GW400 & GW500 are extensively used whilst drilling both Waterwell and Geothermal bore holes. In Siljansringens, Sweden the GW400 has drilled over 1000mtrs, water was present from 50mts onwards. • America- The GW500 is being used for Geo Thermal bore holes in Wisconsin, Maryland, and Kentucky. The GW600 is being used for Geo Thermal in the Washington DC area and also for Waterwell and quarrying in the Mid West US and South East US • Australia- The GW400 is currently being used for coal exploration as drillers have hit back pressure due to water being present. The GW500 & GW600 are being used for Waterwell and Deep Hole drilling. • Canada- The GW600 is being used in mining for drill and blast as the Hammer penetrates through abrasive rock effectively.

  5. When would I use a GW Hammer? • The GW series has been designed to drill deep Waterwell and Geothermal bore holes, without slowing down drilling time. Our GW hammers have also been used for drill and blast applications around the world. The GW series offers great results for all applications whatever you’re drilling needs are where water is present. The GW series will continue to deliver for you, it can drill a large range of hole sizes stretching from 110mm up to 241mm. • We recommend using the GW500/ GW600 HD when drilling into very abrasive rock, usually for drill and blast applications in mining. • Through a rigorous and challenging testing phase, we ensure that our products are able to outperform in the world’s most demanding drilling conditions. Whilst conducting tests, GW600 hammer drilled to a depth of 460Ft, 20% more efficiently than a competitor hammer in abrasive ground conditions. The tests were carried out on a Drilltech T25KW drill rig running at 1000 cfm/ 350psi.

  6. Benefits of a GW Hammer Include…

  7. Visit Report- Siljansringens

  8. Visit Report- Siljansringens Photo showing how much water present at 56mtrs drilled depth

  9. DTH Comparison

  10. Any Questions?

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