Qingdao Jerryborg Marine Machinery Co., Ltd
Fendering and Floating Solutions
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Pillar Protection Donut Fender Ocean Guard Donut Fender
Donut Fender
Donut fenders are installed over monopiles and used for port and dock entrances and bridge protection with high energy absorption. There are various sizes and colors for customers to choose from to meet different applications.
Jerryborg donut fender is commonly used for simple berthing dolphins, and it can guide the ships and also protect the ships. Donut fender can float up and down with the waterline. The inner casing is wear-resistant with low-friction bearings. Besides, the donut fender is unsinkable and durable.
Donut Fender Application
Donut fender is widely used in places such as turning dolphins, lock entrance, corners of the dock and it can also protect the bridge. It can guide the vessels due to it can rotate with the pile and rise up and down with the tide.
Donut Fender Features
1. cost-effective maintenance
2. easy to install and maintain
3. a long service life
4. tide adaptation
5. adjustable drafts with the counterweights
Donut Fender Installation
1. deliver the fenders to the site
2. lift over and lower them onto the fender pile
3. place the capping part over the top of the fender pile
Donut Fender Specification
| Pile diameter (mm) | Outer diameter (mm) | Overall length (mm) | Standard capacity (at 60% deflection) | |
| Energy absorption (kNm) | Reaction force (kN) | |||
| 500 | 1000 | 3000 | 14.7 | 224.6 |
| 600 | 1200 | 2000 | 13.7 | 179.5 |
| 600 | 1200 | 3000 | 21.5 | 269.6 |
| 900 | 1800 | 1000 | 15.7 | 135.3 |
| 900 | 1800 | 2000 | 32.3 | 269.7 |
| 900 | 1800 | 3000 | 48 | 405.1 |
| 1250 | 2500 | 2000 | 61.8 | 374.7 |
| 1250 | 2500 | 3000 | 92.2 | 562.1 |
| 1250 | 2500 | 4000 | 123.6 | 750.4 |
| 1500 | 3000 | 2000 | 89.2 | 450.2 |
| 1500 | 3000 | 3000 | 133.4 | 674.9 |
| 1500 | 3000 | 4000 | 177.5 | 899.7 |
| 2000 | 4000 | 2000 | 157.9 | 600.3 |
| 2000 | 4000 | 3000 | 236.4 | 899.5 |
| 2000 | 4000 | 4000 | 315.8 | 1199.7 |
For further information free to contact us.