- The Imants Shockwave is a linear decompactor, designed to revitalise heavy wear areas by relieving soil compaction, improving aeration and removing surface water. The Imants Shockwave is reputed to be the world’s fastest PTO driven rotary, linear decompactor. The 155 model is designed for mid-range tractors, and for use on fine turf and sports fields. As with all Shockwave models, it features a no-chains, direct drive design, maintenance free “sealed for life” bearings & no shearbolts.