Air/Hydraulic Truck Jack - Single Stage - 22 Ton | STRONGARMSuper Heavy Duty, single stage 22 Ton jack built for a wide variety of demands from the heavy duty trucking, agricultural, fleet, construction and military sectorsThe piston head seal design is borrowed from industrial technology providing a superior low and high pressure seal, giving this jack a much better hold under severe load conditionsThe extra long 138 cm (54") handle can be locked in 3 positions for easy positioning of this jack in hard-to-reach placesDouble polished chromed pistons yield much tighter tolerances which minimize oil bypass and reduce ram scoringFast 2-speed air/hydraulic action advances ram to load faster for quicker, more efficient operationIncludes safety valve for overload protectionAn integral descent metering valve maintains a controlled and safe lowering of the loadAir assisted lowering as well as 3 self-returning springs for faster ram retractionControlled lowering speeds for increased safety (70mm in 5 sec under load, 75mm in 5 sec without load)Comes with 3 heat treated extensions (20, 50, 100 mm) for a wide range of lifting optionsTested to 20,000 cycles for long service life and increased return on investmentCapacity: 22 T High Height: 356 mm (14") Lift: 5-1/2" (141 mm) Low Height: 215 mm (8-1/2") Working Air Pressure: 90 - 120 PSI