Telescopic hydraulic lifter. Heat-treated adjustable screw allows for fine height adjustment and maximum lift. Double safety relief valve. The knurled, heat-treated saddle provides a large bearing surface and secure support. The wide, robust base ensures stability and durability. All high stress points are reinforced for increased durability and longevity. Load capacity 4t. Min. height 160 mm, max. height 330 + 60 mm.