Hydraulic cylinder parts
We produce precision-machined glands and pistons for hydraulic cylinders, engineered to exact customer specifications. This case study walks through our process - from material selection and lathe setup through to final inspection and delivery.
Given the demanding nature of hydraulic applications - high pressures, continuous cyclic loading and exposure to hydraulic fluid - material selection is critical. For this project we selected high-grade steel and specialised alloys chosen for their strength, durability and resistance to wear and corrosion.
Materials were sourced from qualified suppliers with full traceability, ensuring consistency across the full production run and providing a reliable baseline for dimensional control throughout machining.
Raw material is mounted on the lathe and our machinists calibrate speed, feed rate and cutting depth to the material properties and drawing requirements. Rough turning brings the outer diameter close to final dimensions, removing surface irregularities and establishing the correct stock for all subsequent operations.
From the first pass we record dimensional results at every stage. These intermediate measurements allow us to detect any deviation early and adjust the process before proceeding to the tighter tolerances required in finish turning.
Precision turning achieves the exact outer diameters and tolerances specified in the drawing. Where required, seal grooves, O-ring channels and threaded features are machined using specialised tooling - each checked for correct fit and function using dedicated gauges.
The inner bore is machined to the required internal diameter using boring tools, with tight tolerances maintained throughout. Bore diameter is critical for the correct function of the hydraulic cylinder: an out-of-tolerance bore will cause premature seal wear or fluid leakage under pressure.
After primary machining, each part is polished and deburred to achieve the required surface finish. Sharp edges are removed and all surfaces are checked for irregularities before the component is cleared for inspection.
Throughout the process, dimensions are verified using calipers, micrometers and dedicated gauges. Before shipment, each part passes a final inspection confirming compliance with all drawing requirements. Approved parts are cleaned, packaged and dispatched - ready for direct assembly into the customer's hydraulic system.
Have a similar project in mind?
We are always ready to help with development, prototyping and series production of hydraulic components of any complexity. Send us your drawings - we respond within one business day.