Hydraulic cylinder manufacturing
A quality cylinder passes through several technological steps — from calculation to pressure testing. Each step is checked against the drawing and tolerances.
Main steps
Steps in detail
- 1
Design and calculation
Working pressure, force, stroke, diameters, mounting type and service conditions are defined.
- 2
Choosing blanks
Steel bar for the rod, tube for the barrel and metal for the caps are selected; material certificates are checked.
- 3
Machining
Turning, milling, drilling and threading to drawing.
- 4
Barrel bore
Boring and honing give the required accuracy and surface finish.
- 5
Rod production
The rod is turned, ground, heat-treated if needed and hard-chrome plated.
- 6
Piston, caps and mountings
All parts are made to drawing and tolerances.
- 7
Assembly and seals
Parts are cleaned, seals are fitted and the cylinder is assembled to procedure.
- 8
Testing and quality control
Leak-tightness, pressure strength, smooth travel and dimensions are checked to an approved test procedure.
Quality control
- Incoming inspection: material certificates and blank dimensions
- In-process inspection: diameters, tolerances, surface roughness
- Rod coating and barrel bore inspection
- After assembly: pressure test for leaks and smooth travel
High-pressure cylinders are tested only on suitable equipment, with protective gear and approved safety procedures.
Does your hydraulic cylinder need repair, or do you need a new one?
Send the machine model, main dimensions and a description of the fault — our specialist will contact you to agree on the scope of work and next steps.