The following factors should be considered in the selection of pneumatic fenders:

(1) Maximum energy absorption E;

(2) Reaction force;

(3) Distance requirements after berthing of two ships or the berthing distance from the ship to the dock,

including the maximum distance and the minimum distance;

(4) The size of the ship;

(5) Factors such as wind waves and temperature changes in the actual use environment.

Specifications

Fender Size [mm]	Without Water 60% deflection		Filled With Water 45% deflection
	Energy[kNm]	Reaction[kN]	Ratio Water/Air[%]	Energy[kNm]	Reaction[kN]
1700x7200	560	1810	65/35	134	611
2000x6000	647	1766	65/35	155	599
2500x5500	928	2037	65/35	223	687
3300x6500	1913	3169	60/40	616	1247
3300x10600	3120	5170	55/45	589	1275

Standard tolerance of ±10%

The design of submarine hydor fenders varies depending on factors such as the size and shape of the submarine, the docking environment, and the required level of protection. Common types of submarine hydor fenders include cylindrical fenders, cone fenders, and inflatable fenders, each offering unique advantages in terms of energy absorption, durability, and installation flexibility.

In addition to protecting the submarine, submarine hydor fenders also help prevent damage to port facilities, piers, and other vessels by reducing the impact forces transmitted during docking or berthing operations. They play a crucial role in ensuring the safe and efficient operation of submarines in port environments and contribute to overall maritime safety and infrastructure protection.

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 check out 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 part-

ners from all over the world.

Qingdao Jerryborg Marine Machinery Co., Ltd is a leading international marine products manufacturer & distributor with 15+ years of rich experience in production of marine docking & mooring systems. Jerryborg Marine Machinery Co., Ltd, headquartered in Qingdao, China, is committed to marine fendering and floating products production, R&D and sales. The Jerryborg Marine is equipped with production facilities for high-quality rubber products, ship launching airbags and foam fenders, Yokohama type pneumatic rubber fender, navigation buoys, steel/EVA mooring buoy, distributing mooring ropes, steel wire ropes, marine hardware like anchor chains, anchors, etc.

The Jerryborg serves as a strategic partner of Marine Fender & Mooring Industry, providing excellent products as well as professional and technical expertise. While our true role is designer and manufacturer for marine docking & mooring systems with accessories. We value all customers as important parts of our team, supporting them like close partners. we are with them at each step of the project, from technical consulting, engineering customized fendering and mooring solutions to the manufacturing and installation of marine docking & mooring systems. Our rich experience has earned a good reputation as a dependable partner in the waterways markets, harbors, international ports, etc.

Regional Distributors

The Jerryborg headquarters in Qingdao has an experienced team handling projects and orders from North American region, Asian-Pacific region, European region and EMEIA. The regional distributors promote the local contact with customers. Our cooperation with regional distributors is based on mutual trust, loyalty, long and close working partnership. During our annual meeting all our distributors meet with the service teams to keep informed on industry developments and to catch up with our highly internal quality standards as the best counselors for our customers. Direct contact between all our employees and distributors plays a significant role in our company’s development.

Manufacturing Facilities

Providing safe & critical marine fender systems and mooring systems, the Jerryborg has a strong focus on manufacturing all major spare parts in-house, guaranteeing “higher than highest” quality and reliability at their own production machines. Our rubber fender manufacturing machines in Qingdao has an extensively proven track record of manufacturing high quality rubber fender products & mooring products.

All staff and partners who are involved in the production of marine products are well qualified, frequently trained and further educated to keep up with the latest developments in their specific job.rubber rolling mill, fender press test machine, rubber vulcanizer.

Jerryborg's Focus

It is the mission of what our products are meant to do——creating the value of protection and safety. We offer the full range of marine fender products and marine mooring buoy products, from simple rubber products to highly engineering systems, as well as spare parts and fixings. A strong focus lies on internal manufacturing to offer high-level fenders & buoys at reasonable prices.

our fender systems are designed with an eye for the big picture to make sure our products qualified for the task, while paying attention to every little detail. Engineering advantages means that our partners can be confident in expecting the best from us in all areas.