PRODUCT ADVANTAGES AND QUALITY ASSURANCE
- High-Precision Manufacturing: Processed with CNC slant-bed lathes, CNC deep-hole compound boring machines, and CNC honing machines. Each cylinder passes a 1.5-times working pressure test and a pressure holding test. For cylinders with a control valve group, pressure and flow settings for the valve group are done simultaneously.
- Strong Corrosion Resistance: After overall shot blasting for rust removal, the cylinder is painted with marine-specific anti-corrosion paint to adapt to harsh marine environments.
- After-Sales Guarantee: A 1-year quality warranty is provided. In case of quality problems, free replacement is offered promptly.
COMPATIBLE BRANDS AND STOCK MODELS
Our marine hatch cover hydraulic cylinders meet the compatibility needs of mainstream brands, with sufficient stock for standard models. When stock is low, delivery can be completed within 3–10 days after order placement. Top in-stock models include:
- 63/28-ST155
- 140/90-ST550
- 160/100-ST550
- 140/70-ST550
- 140/80-ST550
- 100/63-ST500
- 225/160-ST1420
- 250/160-ST1360
CUSTOMIZATION SERVICES
For non-standard hatch cover requirements, we offer comprehensive full-size customization:
- Bore Diameter Range: 50–500+ mm (supports installation methods like eye-type and flange-type to match different ship designs).
- Material Options: Choose from carbon steel + chrome plating, stainless steel + chrome plating, or alloy steel + laser cladding—each selected for durability in marine conditions.
- Sealing Configuration: Seals are sourced from global leading brands (NOK, SKF, PARKER, MERKEL, TECHNOLAN, KASTAS) to ensure long-lasting sealing, operational stability, and resistance to aging.
- Custom Process: Using hatch cover drawings or original cylinder specs provided by the customer, we complete design and production in 3–14 days. Before production begins, detailed manufacturing drawings are sent to the customer for approval.
