Excavator Parts ZAX250-5A Tensiong Oil Cylinder Assembly

Hitachi ZAX250-5A Tensioning Cylinder Assembly is an important part in the traveling system of the excavator, which is mainly used to adjust and maintain the tension of the tracks.The following is its brief introduction:

- Structural composition: usually consists of a cylinder, piston, seals, hydraulic oil piping, push rod and so on.The cylinder is the main part, the piston moves in the cylinder, the seals prevent the hydraulic oil from leaking, the hydraulic oil pipeline is used to transmit the hydraulic oil, and the push rod connects the piston with the external parts.
- Working Principle: The pressure oil provided by the hydraulic system enters into the oil cylinder and pushes the piston to move, which in turn drives the action of the push rod and realizes the adjustment of the track tensioning degree.When it is necessary to tighten the tracks, the hydraulic oil enters into the cylinder and pushes the piston so that the push rod extends to tighten the tracks; on the contrary, the hydraulic oil is released and the piston returns under the tension of the tracks themselves, thus reducing the tension of the tracks.
- Function: Ensure that the tracks are always in proper tensioning state, prevent the tracks from being too loose, leading to derailment and deflection, affecting the normal walking and working efficiency of the excavator, meanwhile, avoiding excessive wear and tear on the tracks and walking parts caused by over-tightening of the tracks and prolonging the service life of them, and improving the stability and safety of the excavator when it operates in different terrains.