If you're trying to lift something heavy, a jack can be incredibly useful, if not necessary, but do you need a screw jack or ...

Be it any minerals or other resources, the spike in demand for more reserves to be explored, has led to hydraulic jacks being used in underground mining these days. Copper $ 5.6045 / lb 1.94% ...

An industrial sized hydraulic press is extremely heavy and expensive, but a smaller version can be made using a standard 4-ton bottle jack—the same type used to change a car tire.Two heavy duty ...