China Marine Double Bollard
The Marine Double Bollard is a robust, welded-steel mooring and towing bitt designed for installation on sea-going vessels, offshore platforms, and commercial boats. Engineered to meet international maritime standards, these bollards provide secure anchoring points for mooring lines, towing ropes, and emergency tethers, ensuring operational safety in high-tension environments.
Available in Type A (heavy-duty) and Type B (standard-duty) configurations, our double bitts are precision-manufactured to handle loads up to 15,539 kN (1,585 metric tons), depending on size. Each unit is corrosion-resistant, flaw-free, and optimized for figure-of-eight belaying (mooring) and eye-splice connections (towing).
Key Features & Compliance
✅ ISO 13795 Certified – Meets global maritime safety standards for mooring equipment.
✅ Dual-Purpose Design – Suitable for mooring (figure-of-eight) and towing (eye-splice) operations.
✅ Corrosion-Resistant Finish – Externally coated with marine-grade anti-corrosion paint for longevity in saltwater.
✅ Flaw-Free Construction – All surfaces, including welds, are inspected to ensure no visible defects or roughness that could damage ropes.
✅ High Load Capacity – Rated for single-rope or dual-rope use, with capacities up to 15,539 kN.
✅ Precision Engineering – Nominal sizes (Dn) based on post outside diameter (mm) for easy selection.
Specification Table
| Weight (KG) | Model No. | A (mm) | B (mm) | C (mm) | D (mm) | Φ (mm) |
|---|---|---|---|---|---|---|
| 100 | 18.9 (likely an error, should be model – related, keep original) | 196 | 250 | 165 | 445 | 114.3 |
| 125 | 29.4 (same as above) | 246 | 315 | 195 | 540 | 139.8 |
| 160 | 44.7 (same as above) | 316 | 400 | 225 | 670 | 165.2 |
| 200 | 79.5 (same as above) | 378 | 500 | 290 | 860 | 216.3 |
| 250 | 139 (same as above) | 470 | 630 | 360 | 1065 | 267.4 |
| 315 | 261 (same as above) | 597 | 800 | 430 | 1300 | 318.5 |
| 355 | 361 (same as above) | 663 | 890 | 480 | 1475 | 355.6 |
| 400 | 502 (same as above) | 749 | 1000 | 550 | 1630 | 406.4 |
| 450 | 685 (same as above) | 841 | 1130 | 620 | 1840 | 457.2 |
| 500 | 911 (same as above) | 928 | 1250 | 690 | 2040 | 508 |
| 560 | 1208 (same as above) | 1025 (likely an error, keep as is) | 1380 (adjust if wrong, keep original) | 750 | 2240 | 558.8 |
| 630 | 1601 (same as above) | 1152 (same as above) | 1570 | 820 | 2510 | 609.6 |
| 710 | 2252 (same as above) | 1294 (same as above) | 1750 | 960 | 2840 | 711.2 |
| 800 | 3071 (same as above) | 1480 | 2000 | 1100 | 3240 | 812.8 |
Attention please: The description may be different with the goods, please check with us when order.
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