Our company supplies a complete range of hydraulic cylinder components and accessories.
All products are available in standard sizes and customized designs, ensuring the right fit for your application.
We recommend the best materials and processes based on your operating conditions, helping you achieve reliable performance and long service life.

Product Gallery


Product Categories

Product ItemFunction & Application
Honed TubePre-finished raw tube with accurate inner diameter and surface finish, ready for cylinder assembly
Cylinder BarrelFinished barrel assembly with ports, mounting features, and honed inner bore for piston sealing
End CapCloses the non-rod end, provides port connections, and withstands hydraulic pressure loads
Head CapGuides and supports the piston rod, holds rod seals and wipers, ensures rod alignment
Piston Rod BlankBase rod material before surface treatment
Hard Chrome Plated Piston RodCorrosion-resistant piston rod with high hardness (800–1000 HV), ready for assembly
Main Seal KitComplete kit ensuring leak-free operation
Piston SealPrevents internal fluid leakage between piston chambers
Rod SealPrevents fluid leakage along piston rod
Wiper SealKeeps contaminants out of the cylinder
Guide Band / Support RingPrevents metal-to-metal contact, provides rod/piston support
Static Seal Ring/O RingProvides versatile sealing for static or low-speed dynamic applications, ensuring leak-free performance under pressure
FlangeProvides rigid mounting interface
ClevisArticulated mounting connection for dynamic loads
Pin ShaftConnects clevis to equipment, withstands shear forces
Mounting BaseFixed mounting interface for hydraulic cylinder
Cushioning / Buffer DeviceProvides hydraulic buffering to ensure smooth deceleration at stroke ends, reduces impact, vibration, and protects equipment
Air Bleed ValveRemoves trapped air from cylinder or system
Exhaust DeviceReleases residual air or excess pressure, ensuring safe cylinder operation and preventing overload
Rod Protective CoverProtects piston rod from dust, dirt, and corrosion
Position SensorNon-contact rod position measurement for smart control
Sensor-Integrated Piston RodEnables real-time rod position monitoring
High-Temperature SealsDesigned for applications above 200°C
Corrosion-Resistant Plated RodIdeal for marine and chemical environments

Key Features & Benefits

  • Precision Manufacturing
    • Honed tubes with H8–H9 tolerance and Ra 0.2–0.4 μm finish
    • Chrome-plated rods with high hardness (800–1000 HV)
    • End and head caps with CNC machining, port threading, and seal grooves
  • Quality Assurance
    • 100% pressure-tested end caps and head caps
    • Dimensional inspection for all sealing surfaces
    • Material certification available upon request
  • Customization Service
    • Standard and custom components available
    • Built-to-print production based on drawings and specifications
  • Engineering Support
    • Expert recommendations on materials, seals, and finishes
    • Technical consultation for application-specific requirements

JW Hydraulic

JW HYDRAULIC is a leading Asia-based manufacturer of hydraulic cylinders and precision components, delivers 
custom-engineered solutions for maritime, offshore, metallurgy, mining, and construction sectors. Renowned for rigorous quality control, the products undergo extensive testing to meet stringent international certifications (ABS, Lloyd’s, DNV), ensuring exceptional durability and performance in the most demanding operating conditions. With a strong focus on innovation and engineering excellence, we continues to advance our expertise in hydraulic systems, providing high-performance, reliability-driven solutions for global industrial applications.

Contact Us

  • Tel: +86 21 6266 6697
  • Sales manager: jane.wang@jwgroup.cc
  • Add: 2299, Xiangjiang Road, Shanghai 201804, China

Office Hour

  • Monday – Friday: 9:00 AM – 6:00PM

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