Qingdao Jerryborg Marine Machinery Co., Ltd
Fendering and Floating Solutions
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EU GL Donut Fender for Ship Landing Hot Selling Polyurethane Fender
Product Introduction
Jerryborg Donut fenders are a simple and versatile solution for berth corners, locks and similar applications.
Donut fenders float and rotate around a steel monopile. Their foam body provides buoyancy and energy absorption. The steel core has low friction UHMW-PE stave bearings so it moves freely with the rise and fall of the tide.
Low rolling resistance means Jerryborg Donut fenders are ideal for berth corners, lock entrances, guiding structures and anywhere that ships warp along the berth.
Submersible systems are also available for submarine docking operations.
High energy closed-cell foam body
Heavy duty inner steel core
Reinforced polyurethane skin
Rises and falls with water level
Low rolling resistance
Long life UHMW-PE bearings
Simple and fast installation
Custom colours and designs available
Minimal maintenance Company profile
Dimensions and Performance
| Donut Foam Grades ▶ | Standard | High Capacity | Extra High Capacity | Super High Capacity | ||||||
| Donut OD | Pile | Height | Energy | Reaction | Energy | Reaction | Energy | Reaction | Energy | Reaction |
| 1200 | 610 | 600-2400 | 7.0 | 116 | 11.5 | 189 | 17.4 | 288 | 26.1 | 430 |
| 1400 | 762 | 600-2400 | 9.6 | 136 | 15.6 | 221 | 23.7 | 336 | 35.5 | 502 |
| 1600 | 813 | 600-2400 | 12.5 | 155 | 20.4 | 252 | 31.0 | 383 | 46.3 | 573 |
| 1800 | 914 | 600-2400 | 15.8 | 174 | 25.8 | 284 | 39.2 | 431 | 58.6 | 645 |
| 2000 | 1016 | 900-2400 | 19.5 | 193 | 31.9 | 315 | 48.3 | 479 | 72.3 | 716 |
| 2200 | 1118 | 900-2400 | 23.6 | 213 | 38.5 | 347 | 58.5 | 526 | 87.5 | 788 |
| 2400 | 1219 | 900-2400 | 28.1 | 232 | 45.9 | 378 | 69.6 | 574 | 104 | 859 |
| 2600 | 1372 | 900-2400 | 33.0 | 251 | 53.9 | 410 | 81.7 | 622 | 122 | 931 |
| 2800 | 1422 | 900-2400 | 38.2 | 270 | 62.4 | 441 | 94.7 | 670 | 142 | 1002 |
| 3000 | 1524 | 900-2400 | 43.9 | 290 | 71.6 | 473 | 109 | 717 | 163 | 1073 |
| 3300 | 1676 | 900-2400 | 53.1 | 319 | 86.7 | 520 | 132 | 789 | 197 | 1181 |
| 3600 | 1829 | 900-2400 | 63.2 | 348 | 103 | 567 | 157 | 861 | 234 | 1288 |
| 3900 | 1981 | 900-2400 | 74.1 | 376 | 121 | 614 | 184 | 932 | 275 | 1395 |
Donuts are available in many other diameters and heights, different fender/pile ratios and to suit other pile diameters. Please ask for details. Standard tolerance ±15%. Table performance values are per 1000mm flat height. Performance is proportional to flat height. Performances are at deflections of 60% of Donut wall thickness.
[Units: mm, kN/m, kJ/m]
Material
100% closed cell macromolecule elastic foam
They mainly are 100% closed cell EVA foam, according to targeted use. EVA foams are resilient, closed cells to avoid water absorption and are producted either by rolls or blocks. Those elements are glued or thermobounded to constitute monolithic cocon or core, then tooled to requested shape before being encapsulated by tough reinforced SPUA coating matrix as here under.
Technical reinforcement cord fabric
They are applied according to building rules of soft composites reinforcement to strengthen the “matrix” and constitute the encapsulating coating for Jerryborg’s fenders, buoys and floats, etc. The main reinforcement fabric in Jerryborg is 1480dtex/3 chinlon tyre cord, which is widely used in pneumatic fender and tire products.
Product Display
Company profile
Lies in Qingdao, a beautiful coastal city with red tiling and green trees, blue sea and clear sky, Qingdao Jerryborg Marine Machinery Co., Ltd is a high-tech enterprise integrated with manufacturing, research and innovation, technical services, specialized in manufacturing marine products, such as marine rubber fender, marine airbag, navigation mark and marine buoy. All products get ISO 9001-2008 certificate and IACS quality authentication from CCS, BV, GL, ABS, LG, etc.
With strong technology base, advanced manufacturing technique, complete manufacturing facilities and well-equipped checkout equipment, Qingdao Jerryborg Marine Machinery Co., Ltd is devoted to forge itself into a top-ranking international competitive marine products manufacturer providing high quality products and perfect service for all customers, and shoulder the responsibility of ensuring global marine safety via mutually beneficial cooperation with partners from all over the world.
Production Facilities
FAQ
Why choose your company?
Jerryborg insists customers requirement first since founded,supply the most professional solution to meet customer's personalized requirements. And we pay great attention to quality control, high reliability is our design principle, quality control starts from beginning, high quality parts,advanced technology and equipment are used, products are designed,manufactured and tested as ISO9001:2015 requirements. All procedures are strictly controlled and completely meet requirements of ship surveyors such as CCS, BV, RS, ABS, LR, etc.
What are Jerryborg's highlights?
We provide all types of fenders, such as Super Cell Fender, Super Cone Fender, Arch Fender, Cylindrical Fender, D Type Fender, etc. We also offer clients with a design of a complete fender system and installation for port facility.
What are the selling points about your products?
A superior fender product can protect both the vessel and the berthing structure berthed against, preventing any damage and save on repair costs.Our rubber fenders are manufactured in accordance with PIANC guidelines and come in a range of compounds to suit various applications. In addition, Jerryborg can produce according to drawings and provide technical advisory services free of charge.
Could you tell me more details about this type of product?
Foam fender is filled with high density foam,which is widely used in docks, ships, boats and vessels. High energy-absorption, corrosion resistance as well as anti-tearing can protect the docks and all the ships well when berthing.