Main specifications 1.Compaction hammer weight :4536g±9g drop height : 453.2mm±1.5mm 2.Blows per minute : 60s/min 3.Preset compaction times, preset range: 0-9999s, have a memory feature 4.Dimension of laminated woodblock compaction baseplate : 457×200×200(mm) 5.Dimension of concrete baseplate : 120×450×450(mm) 6.Specifications of motor : 370W 380V 50HZ 7.Outside measurement : 1740×500×500(mm) 8.Complete machine weight: 180Kg