Custom Double-Acting Telescopic Hydraulic Cylinder for Marine Applications
APEX Hydraulic provides custom double-acting telescopic hydraulic cylinders engineered for demanding marine, port, and offshore environments. These cylinders deliver controlled extension and retraction with hydraulic power, ensuring reliable operation of hatch covers, ramps, cranes, and other deck machinery. Built with corrosion-resistant materials and sealed against saltwater exposure, they maintain performance in harsh marine conditions.
Key Selling Points
- Double-Acting Power Return: Hydraulic power for both extension and retraction, enabling precise control of heavy marine equipment.
- Marine-Grade Corrosion Resistance: Stainless steel component options, marine-grade coating, and corrosion-resistant rod treatment for saltwater environments.
- Synchronized Operation: Can be designed for synchronized multi-cylinder lifting, critical for even load distribution.
- Reliable Load Holding: Optional load-holding valves and position monitoring for safe operation.
- Customizable Ports and Mountings: Sealed hydraulic ports and mounting configurations designed for marine systems.
- Vibration Resistance: Designed to withstand continuous vibration and vessel motion.
Technical Specifications
| Parameter | Value |
|---|
| Acting Type | Double Acting (Hydraulic Return) |
| Number of Stages | Customized per stroke and installation envelope |
| Working Pressure | Customized per hydraulic system specification |
| Operating Temperature | Determined by seal selection and environment |
| Return Method | Hydraulic power return |
| Extension Sequence | Largest stage to smallest |
| Hydraulic Ports | SAE ORB, NPT, BSPP, metric, flange, or customer-specific |
| Mounting Options | Trunnion, ball, clevis, or custom |
Models and Options
Configurations include front-mount, trunnion-mounted, and custom mountings. Options for stainless steel components, marine-grade coatings, load-holding valves, position sensors, and emergency lowering capability.
Materials and Structure
High-strength seamless steel tubes for stages, with optional stainless steel for marine use. Cylinder base and trunnions of high-strength forged or machined steel. Heavy-duty composite guides and moisture-resistant dynamic seals for long service life.
Applications
- Hatch covers and stern ramps on cargo ships
- RoRo ramps and ship doors
- Marine cranes and offshore lifting platforms
- Telescopic gangways and port access equipment
Customization
Saltwater corrosion resistance customization including stainless steel components, marine-grade coating, and rod treatment. Synchronized movement and position feedback available. OEM and ODM support provided.
FAQ
Q1: Can these cylinders withstand saltwater exposure? Yes, materials and coatings are selected for saltwater corrosion resistance.
Q2: What types of marine equipment are these cylinders used on? Hatch covers, RoRo ramps, cranes, gangways, ship doors, and more.
Q3: Can you provide synchronized movement for multiple cylinders? Yes, our engineering can design for synchronized operation.
Q4: Are load-holding valves available? Yes, optional counterbalance or pilot-operated check valves can be included.
Q5: What is the MOQ for custom marine cylinders? Negotiable based on specifications; standard products MOQ is 1 piece.
Inquiry Information
Contact Jason: jason@hydraulicapex.com | Tel/WhatsApp: +86 182-5318-1828 | Web: www.hydraulicapex.com
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