Design & Manufacturing
From engineering design to precision machining — discover how we ensure every cylinder meets your exact requirements.

Production range:
- Bore: 40-1000 mm (1 1/2-40 inch)
- Rod: 12-500mm (1/2-20 inch)
- Rod should be hard chromed to a minimum depth of 25 microns and polished to 0.15um Ra
- Plate: Cr, Ni, Ceramics, HVOF
- Stroke: Max 15500mm (610inch)
- Design pressure: Max 700bar (10150 PSI)
- Weight: Max 60 tons
- Valves: SUN (USA)
- Seals: PARKER(USA)or MERKEL(Germany)
- Bearings:LONGXI(China) or SKF
- Painting: follow the customer requirement or 3-coat marine painting
- Class certificate: DNV, ABS, Lloyds, BV, GL, and CCS
- Material: carbon steel, alloy steel, stainless steel
From Concept to Drawing
Each hydraulic cylinder starts with a detailed 2D or 3D drawing to ensure precision in every stage of production.

①
Define Working Conditions
Determine the working pressure and required stroke based on the actual application.
②
Select Main Dimensions
Decide the inner diameter of the cylinder barrel and the piston rod diameter.
③
Calculate Structural Parameters
Calculate wall thickness and outer diameter to ensure strength and safety.
④
Design Cylinder Head and Guide Sleeve
Determine the thickness of the cylinder head and the minimum guide sleeve length.
⑤
Determine Cylinder Barrel Length
Define the total barrel length according to the stroke and mounting type.
⑥
Check Piston Rod Stability
Perform stability verification to ensure reliable operation under working load.
previous projects
A showcase of our custom hydraulic cylinders built for various industries and applications.









Get more information about us

Projects
Marine Hydraulic Cylinder
Telescopic Cylinder
Contact Information
Ph: +86-21-62666697
Mobi: +86 133 3793 7369
Email: link@jwgroup.cc
Add: No 2299, Xiangjiang Road, Shanghai, China