Case Study: Offshore Subsea Hydraulic Cylinder
Industry: Marine & Offshore
Client Profile: Global offshore energy contractor
The Challenge
The client faced repeated cylinder failures due to severe corrosion caused by salt spray and constant exposure to a harsh marine environment. Standard rod treatments and coatings were insufficient for the long-term reliability required in subsea operations.
The Objective
To significantly extend the service life of hydraulic cylinders operating in a high-salinity environment, reduce unplanned maintenance, and improve equipment availability for offshore tasks.
Yongjian’s Solution
After in-depth technical consultation, Yongjian designed and manufactured a series of corrosion-resistant subsea hydraulic cylinders featuring:
Rod Protection: Advanced double-layer chrome plating, ensuring superior resistance to pitting and surface degradation
Surface Coating: High-performance marine-grade anti-corrosion paint system
Sealing System: Multi-stage high-pressure seals adapted for underwater use
Materials: Corrosion-resistant alloy steel for both cylinder body and rod components
Results
The enhanced subsea cylinders achieved more than double the service life of previous models. This led to:
Significant reduction in maintenance and downtime
Improved operational reliability in offshore applications
Long-term cost savings from fewer replacements and interventions
Yongjian continues to support the client with engineered hydraulic solutions for other marine equipment components.
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