I sent a set of hydraulic jack pump uzbekistan customers by hand.This is a 100 - ton single-acting hollow jack, stroke is 100 mm, center hole is 40 mm, body height is 285 mm.Match a hand pump, the oil capacity of 950 ml of 1.5 meters of oil hose.Single-acting hydraulic jack can match a electric pump, like the second picture, this is an electric pump.

My client bought jack, he want jack 33 mm line tension.Single-acting hole jack can also be used to remove heavy Bridges and buildings.