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The leader in trench compaction technology, NPK delivers the industry’s greatest impulse forces with overall superior performance through hydraulically operated rotating eccentric action. Greater vibration forces generate stress waves in granular or loose soil material, bringing the soil’s air to the surface and packing the particles closer together. Greater impulse action works together with the carrier’s downward forces to compact cohesive clay-type soils.

NPK’s versatile Compactor/Driver can work productively virtually anywhere your excavator or backhoe boom can reach. In trenches, over and around pipe, to the top of piling and sheeting. Next to foundations and around obstructions. Even on steep slopes or rough terrain where conventional rollers and other machines either can’t work or would be hazardous to try. In fact, NPK’s Compactor/Drivers can keep workers a full boom’s length from the compaction or driving action, away from the danger of cave-ins or equipment contact

NPK Compactor/Drivers are designed and built for optimum dependability on the most demanding jobsites. Rugged welds, heavy-duty direct drive gear motors, durable rubber shock mounts and self aligning, double row, spherical roller bearings with a heavy-duty roller cage.

NPK Compactor/Drivers actually deliver on the promise of greater cost-efficiency and jobsite versatility - operating advantages that are absolutely required by today’s contractors and budget-conscious municipalities. Utilizing your carrier’s hydraulic system, you save on fuel as well as the need for other costly machines and equipment, using your versatile NPK Compactor/Driver for:

  • Compacting or driving anywhere a boom can go, and often where a man cannot.
  •  Driving wood and aluminum sheeting, fence posts, guardrail posts, rail and I-beams, piling and seawalls, etc.
  • Soil and aggregate compaction.
  • Trench compaction, as deep as a bucket can dig.
  • Steep slope compaction.
  • Waste compaction at transfer stations, etc.
  • Breaking up frozen coal, salt and other material.
  • Extracting piling and sheeting.