Description International Fluid Power 12 VDC electric-drive hydraulic pump with two-stage flow unloader and large hydraulic fluid reservoir. Power unit for 42-inch soil sampling system with 42-inch two-stage telescoping cylinder. 12 VDC electric motor Two-stage pump with unloader set at 700 psi, 4.0 gpm @ 250 psi, 0.6 gpm @ 2000 psi 3.2 gallon steel reservoir Cycle time 25-30 seconds for 42-inch soil core
