The Tier 4 Final compliant XHP1170WCU high-pressure air compressor from Doosan Portable Power has an HR350 airend that offers a highly efficient rotor profile that requires less horsepower to deliver high volume cfm output, resulting in a 9 percent increase in fuel economy over the previous interim model. It comes standard with dual-pressure regulation, offering operators 250 or 365 psi, and is powered by a Tier 4 Final Cummins QSX15 with a selective catalytic reduction and diesel particulate filter after-treatment system. The 580 hp engine delivers 1,800 rpm, while two 99-gallon fuel tanks ensure eight hours of machine runtime at 100 percent load. 800/633-5206;

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