All nutsplitters are fitted with a single acting, spring return, hydraulic cylinder that requires only one hose to be connected to the pump unit (Hose & Pump available for hire). There are four cylinder sizes covering a large range of nut splitter heads. All hydraulic cylinders are rated at 20,000 psi (1400 bar) maximum working pressure. Nut Splitters and hoses are fitted with quick connect/disconnect self-sealing couplings. Head ranges from 3/4″ all the way through to 5-3/8″ depending on application.