Mekaster tools provides hydraulic jacks. These hydraulic jacks complement the existing range of heavy-duty sockets/wrenches, torquing tools [manual/hydraulic/ electric & pneumatic] and other special maintenance tools. These hydraulic jacks conform to asme b30.1 standards and are designed with a safety factor of 2:1 on material yield. There are more than 50 standard single acting models with spring assisted ram retraction from 5 to 200 t capacity in various types such as plain ram, screwed ram, hollow ram, short height and flat. In addition to these jacks up to 1,500 t capacity can be supplied in single/double acting models for various special applications which includes as pile testing, post tensioning, bridge lifting, shifting, etc. The jack components are manufactured of graded alloy steel, hardened and tempered for toughness. Cylinder bores are hard chrome plated and then honed and ram ground after hard chrome plating to enhance wear resistance. Pressure activated anti-extrusion polyurethane seals of imported make [parker, economos, hallite, etc] are used to provide high reliability. Phosphorus bronze guide rings provided on piston and gland nut - reduces scoring caused by off-centre loads. All exposed surfaces are treated for corrosion resistance. Rams are provided with hardened grooved saddle to prevent ram from mushrooming. Plain or tilt saddles can also be supplied. Port connections are 3/8" npt [f]. The jacks are tested for all dimensions, static pressure, functional [no load and on load cyclic] and overload.
