... be improved 2-3 times, no pile position dead angle, pile. Aligning with the pile location is accurate and reliable:Braces ... process, multiple spindle drilling machine, diesel hammer, hammer, hydraulic hammer and other working apparatus for multiple method construction.WHB ... /min)0-1.33Weight of working state(t)30Weight of towing(t)21Drill size of working state(m)10× ... m)13.3×3.1×4 WHB 20 Long Pile driver