The new version uses a Kubota engine that runs at a slower speed than the Kubota offered in the RAPTAIR60. The slower approved engine enables the compressor to provide more than 52 cfm, and the lower RPM also makes the system quieter than the 60-cfm version. Although there is a decrease in flow, the RAPTAIR50 is a high performance air compressor that can be truck- or skid-mounted with enough power to run most common air tools used in mining operations. The new diesel drive engine also decreases the possibility of fire presented with a gasoline engine, VMAC said.