20–200T Single Bitt Dock Bollard | Casting Steel & Ductile Iron Marine Mooring Equipment

Product Overview

The single bitt dock bollard is a heavy-duty marine mooring fitting designed for secure vessel berthing at ports, shipyards, and offshore structures. Manufactured from high-quality cast steel or ductile iron, it provides reliable performance under dynamic load conditions. Ductile iron offers superior wear resistance, while cast steel ensures high structural strength. All anchor bolts are hot-dip galvanized for enhanced corrosion resistance. Finite Element Analysis (FEA) is applied to verify structural integrity and optimize load distribution.

Quick Specifications

Capacity: 20–200 tons → Defines mooring load capacity

Material: Cast Steel / Ductile Iron → Strength vs wear resistance selection

Safety Factor: 3× → Ensures operational reliability

Cable Angle: Vertical -15° to +75°, Horizontal 0–180° → Flexible rope direction

Anchor Bolts: Hot-dip galvanized → Corrosion protection

Surface Treatment: Sa2.5 + Epoxy primer → Marine durability

Main Technical Parameters

Selection Guide

Step 1 – Select capacity → Based on vessel size and mooring load

Step 2 – Confirm rope angle → Based on installation condition

Step 3 – Select material → Ductile iron (wear resistance) or cast steel (strength)

Step 4 – Confirm installation → Bolt anchorage or embedded type

Step 5 – Confirm certification requirement

Step 6 – Different base plate shape available

Structure

Bitt Head | Body | Base Plate | Anchor Bolts (Hot-dip galvanized)

Custom Attributes

Dual material options → Optimized for strength and wear resistance

FEA verified design → Ensures structural reliability under load

Strict casting quality control → Stable and consistent performance

Hot-dip galvanized bolts → Improved corrosion resistance

Heavy-duty construction → Suitable for marine environments

Inquiry Guide

Please provide capacity, material preference, installation condition, environment, and certification requirements.

How It Works

Mooring lines are wrapped around the bollard to transfer vessel loads to the dock structure. The robust casting structure and secure anchorage ensure safe load distribution.

Applications

Ports | Shipyards

Certifications & Advantages

Available with CCS, ABS, DNV, LR, BV certifications. FEA-verified design and strict quality control ensure reliable performance.

Drawing & Photos

General arrangement drawings and product photos available upon request.

Ordering

MOQ: 1 Unit | Delivery: 30–60 days | Customization available

FAQ

Q1: How to choose correct bollard capacity?
A: Based on vessel size, mooring analysis, and safety factor.

Q2: What is the difference between ductile iron and cast steel?
A: Ductile iron offers better wear resistance, while cast steel provides higher strength.

Q3: Are anchor bolts included?
A: Yes, hot-dip galvanized bolts are provided as standard.