HO-PAC 400B RAMMER COMPACTOR ® Faster, less expensive technique for driving wood, steel and aluminum sheeting, ‘H’ and ‘I’ beams, piling, posts and seawalls Also great for compacting waste materials and breaking up frozen coal Able to compact in densities in excess of 95% Proctor Four Function Valve controls flow, pressure, regenerations and oil flow direction Tough coat hoses prevent cuts and extend wear life Grease filled, sealed bearings provide maintenance free lubrication Ideal for trench, slope and excavation compaction HO-PAC COMPACTOR DRIVERS Ho-Pac compactor drivers save you time, money, and increase productivity by expanding versatility and eliminating the need for special purpose machines. Ho-Pac models use an eccentric, rotating weight that creates vibrations and impulse energy for effective soil compaction and are extremely efficient at driving piling, posts, pipe, guardrails posts