Constructed of 1/4-inch ASTM A572-Grade 50 steel, the HV56 hydroexcavator from GapVax has a 15-cubic-yard debris body and water tank options ranging from 350 to 1,200 gallons. Its positive displacement blower is rated 5,250 cfm at 28 inches Hg. The tailgate is fully opening with a field-adjustable hinge and dual cylinders, and also has four individually adjustable locks to ensure a complete seal. Options include a cold weather recirculation package, sludge pump, auger unloading system, body pressurization system, remote pendants and wireless remotes. It can be used for excavating, locating utilities, tunneling, slot trenching, conveying dry gravel and sand, or general cleanup. 888/442-7829;

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