| Customization: | Available |
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| Processing Object: | Metal |
| Molding Style: | Forging |
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Our forged marine hydraulic cylinders are engineered for extreme reliability in shipbuilding and offshore operations. Designed to withstand high-pressure loads, saltwater corrosion, and continuous use in harsh environments, these cylinders are critical components for:
Deck Machinery: Cranes, winches, hatch covers.
Steering Systems: Rudder actuators, stabilizers.
LNG/Offshore Platforms: Cryogenic and high-pressure fluid control.
| Feature | Benefit |
|---|---|
| Material Superiority | ASTM A105/4140 alloy steel or duplex stainless steel (UNS S31803) for unmatched strength and corrosion resistance. |
| Precision Forging | Closed-die forging ensures grain structure integrity, eliminating weak points. |
| Surface Protection | Hard chrome plating + epoxy coating (ISO 12944-C5-M) for saltwater immunity. |
| Certifications | DNV-GL, ABS, LR, BV, CCS compliant for global maritime standards. |
| Custom Engineering | Tailored dimensions, pressure ratings (up to 50 MPa), and port configurations. |
| Parameter | Specification | Testing Standard |
|---|---|---|
| Material Grade | ASTM A105, 4140, 316L, Duplex S31803 | ASTM E8 (Tensile Test) |
| Pressure Rating | 20-50 MPa (2900-7250 psi) | ISO 4413 (Hydraulic Power) |
| Operating Temp. | -60°C to +200°C | EN 10204 3.1 Certification |
| Bore Diameter | 50-500 mm (customizable) | ISO 3320 (Fluid Power) |
| Seal Type | Parker/Merkel high-pressure seals | ISO 3601 (Sealing Standards) |
Role: Powers load-handling systems with smooth, high-force linear motion.
Advantage: Fatigue-resistant design for 500,000+ cycles.
Role: Automates cargo hold sealing; IP68 waterproof rating.
Advantage: 17-4PH stainless steel option for zero rust.
Role: Controls -196°C LNG flow with leak-proof integrity.
Advantage: Charpy V-notch tested for impact toughness.
Step 1: Ultrasonic Testing (UT) to detect internal flaws per ASTM A388.
Step 2: Dye Penetrant Inspection (DPI) for surface cracks (ASME V Article 6).
Step 3: Pressure testing at 1.5x working pressure (ISO 4413).
Step 4: Dimensional verification via 3D laser scanning.
20+ Years Expertise: Trusted by shipyards in EU, SEA, and Middle East.
Fast Lead Time: 30-45 days for standard sizes; expedited options available.
After-Sales Support: Global spare parts network + 24/7 technical assistance.
MOQ: 1 piece (prototypes accepted).
Packaging: Wooden crates with anti-rust VCI film.
Shipping: FOB/CIF terms; air/sea freight for hazardous materials (LNG-compatible models).
Request a Quote: Click "Contact Supplier" to share your CAD drawings or specifications for a tailored solution.
DNV/ABS certification copies.
Material test reports (MTRs).
CAD models (STEP/IGES).
1) Industry Leadership:
As pioneers in Pipeline Products since 2009, we boast decades of expertise. we've provided pipeline solutions to over 30 countries. Our stringent quality control ensures guaranteed excellence.
2) VIP Service:
Our dedicated technical engineers and sales teams ensure top-notch quality and service, catering to your specific needs with professionalism and care.
3) Flexibility in Material Selection:
With expertise in forging different materials, we offer flexibility in material selection to meet the unique demands of different industries and applications.
4) Rapid Prototyping and Production:
Leveraging advanced forging techniques, we excel in rapid prototyping and production, enabling quick turnaround times for orders.
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