How to Choose The Right Marine Bollard - Part 1
2025-07-04
1. Core Elements
Mooring load
- Calculation basis: Ship tonnage, wind, wave and current intensity, mooring Angle (the smaller the Angle, the greater the load).
- Safety Requirements: The safe working load (SWL) of the cable pile should be no less than the expected maximum load x 1.5 (refer to the OCIMF specification). Over-limit use is strictly prohibited.
2. Type selection
- Double cross bollard: The main force for merchant ships and passenger ships, with strong anti-skid and anti-shedding properties, and capable of withstanding forces in multiple directions.
- Cross bollard: The preferred choice for oil tankers /LNG carriers, with ultra-high strength and the best anti-slip performance.
- Single cross/T-shaped bollard: Suitable for small and medium-sized ships, saves space and has a low cost.
- Horn Bollard: Auxiliary mooring points for yachts, with a compact structure.
3. Materials and anti-corrosion
Cast steel + hot-dip galvanizing: High cost performance, suitable for 90% of scenarios.
- Stainless steel (316L) : In highly corrosive environments (such as chemical ports), it requires no maintenance but is costly.
Key point: The surface must be smooth and free of burrs to prevent cable wear.
