... 50-60hp VSD) 1.Ingersoll rand air compressor 2.smart,efficiency ingersoll rand reciprocating air compressor (37-45kW / 50-60hp VSD) ... The HPM motor uses no bearings and directly drives the compressor, eliminating gears, pulleys, belts, couplings and motor shaft ... TechnologyNirvana's exclusive Hybrid Permanent Magnet motor has revolutionized compressor performance by providing more air over a wider ...