What is Hydraulic Cylinder Shaft?

A hydraulic cylinder shaft, also known as a piston rod, is the primary component that converts the linear motion of a hydraulic cylinder into mechanical force for lifting, pushing, or pulling heavy loads. It is a strong, precisely finished rod attached to a piston inside the cylinder barrel, which moves back and forth as hydraulic fluid pressure pushes on the piston. This shaft allows machines to perform work, and its smooth surface and high-strength material are crucial for reducing friction and wear while resisting corrosion.

How it works

Hydraulic fluid is pumped into one side of the cylinder's barrel, applying pressure to the piston.
This pressure forces the piston to move, and since the piston rod is attached to it, the rod extends or retracts.
The rod then connects to the machine component that needs to be moved, transferring the hydraulic energy into linear mechanical motion.

Key features

Material: Often made of hard chrome-plated steel or stainless steel to ensure durability and resistance to wear and corrosion.
Surface finish: The shaft is highly ground and polished to create a smooth surface that works with seals to prevent leaks and reduce friction.
Connection: It is connected to the piston and has a mounting attachment at the external end to connect to the machine part that needs to be moved.

Purpose: It is designed to withstand the immense forces generated by the hydraulic system, enabling powerful actions like lifting heavy equipment or pressing materials.