... Diameter, Black, Single Acting Application. Product: Hydraulic Cylinder for Log Splitting MachineLog Splitter Hydraulic Cylinder – 2900 PSI(200 bar ... Precision-machined, cast iron provides a malleable bearing surface for extended life.3. Tube (20#/45# steel): ... wiper, gland retainer.Specialised or Customised manufactured seals for high pressure, high temperature and low friction applications. ...