Ship Mooring Bollards Robust Design Weatherproof Protection Corrosion Resistant

Description

The Mooring Bollards Series Kidney Bollard features a unique enclosed "kidney" or "panama" shape. This design is specifically engineered for use with large, heavy mooring ropes and wires common on bulk carriers, tankers, and VLCCs (Very Large Crude Carriers). The closed profile prevents ropes from jumping off under sudden slack or load conditions, a critical safety feature for large-vessel operations.

Case Study: Bulk Terminal, Port Hedland, Australia

A iron ore export terminal was experiencing "rope jump-off" incidents during the rapid loading of Capesize bulk carriers. The sudden change in vessel draft would create slack in mooring lines, which would then violently snap tight and sometimes dislodge from traditional bollards. After installing Mooring Bollards Bollards, the terminal completely eliminated jump-off events, enhancing safety for crew and infrastructure and preventing costly loading delays.

Specifications

Product Features

Enclosed Loop Design

The signature kidney shape fully contains the mooring rope, providing the highest level of security against accidental release, even when the line goes slack.

High Capacity Design

Typically rated for SWL from 150t to 550t+, these bollards are manufactured from normalized high-yield steel (Q345B/ ASTM A572 Gr. 50) to handle the enormous forces generated by mega-vessels.

Low Friction Wear Plate

The inner throat of the bollard is often fitted with a replaceable, polished stainless steel wear plate. This allows ropes to slide smoothly during tensioning while resisting abrasion.

Streamlined Profile

The design minimizes sharp edges that could cut or chafe ropes, thereby extending the service life of expensive synthetic and steel wire mooring systems.

Applications

Oil Gas Terminals

Essential for safely mooring vessels carrying hazardous cargo. A mooring failure here could have catastrophic environmental consequences.

Operational Flow

Heavy wires and synthetic tails are fed through the opening and looped within the enclosed space. The design allows for multiple lines to be stacked securely.

Note

The opening must be kept clear of debris. Inspection for wear on the internal wear plate is crucial during routine maintenance.

Dry Bulk Terminals

Used for coal, ore, and grain carriers that undergo significant changes in draft during loading/unloading, which creates dynamic line tension.

Tugboat and Shipyard Mooring

Provides an ultra-secure point for heavy-duty tow lines and for securing vessels during repair and outfitting.

Why Choose Hongruntong Marine?

Specialization in Heavy Duty Marine Hardware

We have a proven track record of supplying some of the world's largest terminals. Our engineering team understands the unique challenges of mooring VLCCs and Capesize vessels.

Cutting-Edge Design Simulation

We use Finite Element Analysis (FEA) to simulate the extreme loads on the bollard and optimize the design accordingly, ensuring perfect performance under real-world conditions.

Full Project Support

For critical projects, we can provide on-site technical supervision during installation and commissioning to ensure everything is performed to specification.

Global Spare Parts Availability

We stock replaceable wear parts, like inner wear plates, in key global logistics hubs to ensure quick delivery and minimize downtime for our clients.

FAQ

1. Q: What is the minimum rope diameter your kidney bollard can accommodate?

A: The internal dimensions are designed based on the SWL. We design the opening to comfortably accommodate the standard rope sizes used for that load class. Please consult our dimensional drawings for specifics.

2. Q: How do you prevent ropes from chafing on the inside of the bollard?

A: We address this with the optional renewable stainless steel wear plate, which provides a smooth, hard, and low-friction surface that significantly reduces chafing.

3. Q: Can the bollard be used with automatic mooring hooks?

A: Yes, the kidney shape is often compatible with certain types of automatic quick-release hook systems. This requires precise coordination between us and the hook system supplier during the design phase.

4. Q: What is the typical installation process for a 300t SWL kidney bollard?

A: It requires a massive reinforced concrete foundation. Our technical package includes detailed embedment drawings, required concrete strength (e.g., C40/50), and the specifications for the high-tensile anchor bolts (typically ASTM A193 B7). Installation is done using a large crane and requires precise alignment.