Hydraulic hammers
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DAWSON CONSTRUCTION PLANT LTD DAWSON HYDRAULIC HAMMERS The Fastest Hydraulic Hammers in the World. INNOVATIVE PILING EQUIPMENT

DAWSON CONSTRUCTION PLANT LTD Unrivalled production rates – rapid blow rates saves time and money, whole project duration is shortened Rapid blow rates – "chisel" through compacted sands, outdriving much heavier slower hammers High energy transfer efficiency to the pile – smaller hammer outperforms older more cumbersome equipment Optimum energy output – potentially damaging high impact velocities are avoided by careful selection of ram mass; specially important with concrete piles Variable energy output – infinitely adjustable between min/max at the touch of the button, any time during the...

DAWSON CONSTRUCTION PLANT LTD How the hammer fits with standard leg inserts HPH 1200, 1800 & 2400 Steel sheet piles are more often than not driven using some form of vibrator either lead mounted e.g. the ABI Mobilram, or suspended "free hanging" from a crane. When the vibrator is effective it is a method that is hard to beat with current technology. However, all too often it will fail to put the piles all the way down. Time to stop using the vibration technique, even a bigger vibrator will struggle. Instead resort to using an impact hammer – and it makes sense to select one that hits hard,...

DAWSON CONSTRUCTION PLANT LTD The HPH1200, 1800 and 2400 models can be readily adapted to drive Pipe, Timber, Concrete and many other bearing pile types. The standard Leg Inserts can be quickly removed then substituted with simple alternative guides. The HPH6500 has a flange at the bottom end of the hammer casing. This permits various types of Guide Sleeve to be fitted so as to accommodate numerous piles types and sizes. A Universal Guide Sleeve is available that will fit pipe sizes up to Ø914mm (36"). Guide Sleeves can be fitted out with Adaptors so as to interface with H-piles, concrete...

DAWSON CONSTRUCTION PLANT LTD The method of attaching a Dawson HPH Hydraulic Hammer to any given leader has been planned into the basic hammer design. Whether it be an HPH1200 fitted to an ABI Mobilram or an HPH1800 or HPH2400 fitted to American style U-leads (21" or 26" respectively) or an HPH6500 fitted to conventional European leads the method of attachment is straightforward. The key to interfacing with different pile types whilst lead mounted is to keep the solution simple. HPH6500 on European swinging leads driving HP400 x 47m long on 1.4:1 rake (approx. 32º to the horizontal) –...

A full range of accessories are available from Dawson to help solve numerous pile driving challenges. If it is not contained within this brochure please do not hesitate to contact us to discuss your requirements – there is a good chance we may have met the challenge successfully before. Hydraulic Interface Control Module Integrates the HPH Hydraulic Hammer range with a vast array of hydraulic power sources e.g. crawler crane, power packs etc, with minimum installation effort. Maximum flow input 400 l/min (107 gpmUS) Maximum pressure input 350 bar (5,075 psi) Unit requires a 24V/5A power...

DAWSON CONSTRUCTION PLANT LTD Chesney Wold, Bleak Hall, Milton Keynes MK6 1NE, England. Tel: (+44) 1908 240300 Fax: (+44) 1908 240222 E-mail: dawson@dcpuk.com Website: www.dcpuk.com DCP Ltd reserve the right to discontinue equipment at any time, or change specifications or designs without notice or incurring obligations. DAWSON CONSTRUCTION PLANT LTD About us The name Dawson has become synonymous with the highest standards of piling installation. The unique combination of contracting experience blended with mechanical engineering originality and know-how has resulted in a range of truly...