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Something about D fenders

D fenders are becoming more and more popular due to their versatility and excellent protection. Its installation cost is relatively low, and it can also be cut to the required length. Extruded D fenders are suitable for frame dock, tugs, and other workboats. Smaller bottom width, easy for installation and maintenance. The fenders are available in many other sections as well. Many of the D fenders provided by Boomarine are pre-drilled to ensure even distribution of bolts and greatly reduce installation time. The D fender can also be pre-bent, chamfered and cut to specific length options. We can produce D-type fenders ranging in size from 150 mm to 3000 mm, and can also be customized according to requirements to meet the installation requirements of various ships and ports.

Features of D Fender:

- Reasonable reaction force and higher energy absorption

- Easy to install

- Lightweight and easy to maintain

- Rugged design

- Suitable for frame type wharf, or protection of vessel

- Applicable for small quays, fishing boats, tugs, barges, and pontoons

Applications of D Fenders:

- Dinghy docks and piers - Tugboat and workboat - Floating bridge protection - Inland waterway - General fender - Boat berth

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Introduce of Wing-type Rubber Fenders

Wing-type Rubber Fenders is a new type of marine rubber fender developed from D type fender, it enlarges fender bottom width to get embedded steel frame plate inside and to be fixed to the port structure with double row bolts, therefore it gets stronger installation strength and longer service life than D type fender. Wing fenders get high reaction force and energy absorption than D fenders, and easy to install and repair. Double row fixings bolts give it a longer service life time. Wing fenders have good energy absorption capacity and impressive durability. They are usually used to protect ship walls, docks and ports. They are also very resistant to longitudinal and transverse shear forces, and easy to install and replace when necessary. The outer diameter of our fenders ranges from 3 inches to 12 inches, which can be customized according to the size and purpose of the ship. The wing fender usually has a standard hollow O-shaped cavity. However, if your application requires, we can also produce these fenders as solid extrusions. Our fenders have the advantages of excellent stability, high energy absorption and long service life, and can be customized according to your needs.

Features of Wing Type Rubber Fenders

- Higher reaction force and energy absorption capacity than D-type mudguard - High installation stability - Highly versatile - The complete steel plate inside enlarges the strength and use life. - Suitable for framework quay and river - Can be used with another rubber fender

Applications of Wing Fenders:

- Tugboats & Ferries

- Workboats

- Quays & Piers & Harbors

- Small Crafts Berths

- Warehouses & Frame Docks

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What is leg fender?

Leg fenders are high-performance modular marine fenders with exquisite geometry, easy to install, little maintenance, and high performance and efficient energy absorption. Leg fenders have multiple installations and can meet the requirements of different docks. The combined installation could reduce the compression performance during angle berthing. The leg fenders can be installed vertically and/or horizontally, which is very suitable for confined spaces. It is used for small docks to large mooring structures. This fender can also be installed with UHMW-PE surface pads or steel plates. Compared with traditional arch fenders, it provides a cost-effective and high-performance solution in a limited area.

The height of the leg fenders ranges from 250 to 1,600 mm, and the standard length ranges from 500 to 2,000 mm. Other sizes are available on request. Boomarine is a professional supplier of marine fenders, providing leg fenders with larger rated compression and higher energy absorption.

Features of Leg Fenders:

- Modular design, suitable for small spaces

- Easy to install, maintain and replace

- Lightweight design, suitable for vertical, horizontal and mixed arrangement.

- High energy absorption per unit weight

- Strong longitudinal shear force and large performance range

- The design compression deformation rate is 57.5%, and the energy absorption is about 10% higher than that of the super arch fender

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Something About Square Fenders

Square rubber fenders are widely used as belts on tugboats and other workboats. The fender has a round hole to increase wall thickness and durability. The square fender has similar advantages to the D fender. Compared with the D fender, the square rubber fender is used for harder and stronger collisions under harsher conditions. Compared with cylindrical fenders, they have suitable reaction forces and higher energy absorption. Square rubber fenders are simple rubber profiles, usually bolted to the structure. Extrusion molding can be made to virtually any length and then cut and drilled according to the requirements of each application. The square fender is applicable for all kinds of docks, quays, and ships. Good performance during angle berthing.

Features of Square Fenders:

- Easy to drill & cut

- Strong molecular bond

- Highly durable

- Good weathering resistance

- High wear resistance

- Easy to install

- Combination of resilient rubber body

Applications of Square Rubber Fender:

- Workboats

- Tugboats

- Quays

- Pontoons

- Piers

- Loading Bays

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Introduce of W type rubber fenders

W type rubber fenders are usually installed on piers or ships, with a design compression deflection of 50%, which can effectively buffer the collision force between the pier and the ship during the mooring and berthing process, thereby preventing the ship and the pier from being damaged.

Both sides of the W fender have holes for installation, and the fender has good flexibility, which is convenient to be installed on various ship's sides. It is mainly used for all kinds of tugs and barges in port operation, and can also be used for the protection of bridge piles. The fender can be installed in rows, which is an ideal protection system. And it is also ideal for protecting the berthing section of a pontoon or bridge piles.

W type fender is designed for tugboats in extreme operating conditions. It has a unique double "legs" structure with hollows. It is easy to install, and the double "legs" can be deformed at will so that it can be well wrapped around the hull.

Features of W Rubber Fenders:

-  High energy absorption and low reaction force. -  Reasonable structure, flexible design, and durable. -  Easy to install and replace. -  Rugged and wear-resistant synthetic rubber. -  Were normally used for tugboats. -  Ideal for protection of the berthing section of a pontoon or bridge piles.  

-  Were installed in rows to provide a continuous resilient fender face.

W fenders can be applicated to preserve:

-  Tug Boats

-  Work Boats

-  Icebreakers

-  Barges

-  Supply Boats

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What is Ship launching airbag?

Ship launching airbags lift the limitations of traditional skateboard technology that is usually used to build small and medium-sized ships, and it provides an economical alternative to expensive dry docks. Its size can reach 2.5m in diameter and 25m in length, and can be used for hoisting and transporting heavy structures weighing more than 10,000 tons.

The outer layer of the shipping launch airbag is made of rubber, which is designed to protect the inner rope layer from external forces such as abrasion. The material used for the outer layer is strong enough to withstand different weather and physical conditions. The synthetic reinforcement layer is similar to the reinforcement layer in tires. The cord layers are organized at specific angles so that the stress is evenly distributed to provide adequate reinforcement. Airbags also have end fittings, including safety air inlets and airtight rotary joints.

Airbag for ship launching and landing is an extremely promising mature technology, it overcomes restrictions of traditional methods, which limited by the building and repairing capability of small ship factories, and developed into an extremely flexible technology, which has the advantage of labor-saving, time-saving, economical saving, flexible and a prominent economic benefit. Our airbags are widely used in ship launching or landing, heavy lifting and conveying, sunken ship salvage, and stranded ship saving.

Features of Ship Launching Airbags:

- High-quality raw materials with ISO standard

- Service life up to 15 years with reasonable maintenance and care

- The quality and safety of the airbags is guaranteed

- Labor-saving, time-saving, economical saving

- Flexible and prominent economic benefit

Applications of Ship Launching Airbags:

- Ship launching and landing                          

- Heavy lifting and conveying                          

- Sunken ship salvage and stranded ship saving

- Possible substitute for marine pneumatic rubber fender for protective purposes

What types of ship launching airbags can we provide?

Ordinary airbags — the airbag with 3, 4 or 5 layers of cord fabric.

High-bearing capacity airbags — the airbag with 6, 7 or 8 layers of cord fabric.

Super-high-bearing capacity airbags — the airbag with 9, 10 or more layers of cord fabric.

The standard diameter of ship launching airbags (D) varies such as 0.8m, 1.0m, 1.2m, 1.5m, 1.8m and 2.0m, etc. The standard effective length of airbag is from 6m to 18m, which should be specified by the user. Other specification ship launching airbags also can be supplied upon request.

How to choose the right ship launching airbag for your project?

1.The total launch weight of the ship, the carrying capacity of a single airbag and the overload capacity under special circumstances.

2. Whether the initial pressure of the marine airbag before loading and the change in internal pressure after loading exceeds the maximum allowable pressure.

3. The height of the deformed airbag and whether the height meets the requirements for the construction height of the bottom when the pier is removed.

4. Whether it can meet different launching slopes, sooner or later when the stern enters the water, and the bow airbag floats when overloaded.

5. Factors such as the ship’s length, total weight, and shore environment should also be considered.

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Something You Don't Know About Marine Fenders

Rubber fender, also known as rubber bumper, is installed on docks or ships to absorb the collision energy between ships and docks or ships when docking or mooring, so as to protect ships and docks from damage.

How to classify the rubber fenders? Generally, the rubber fender can be divided into two categories according to the structure: solid rubber fender (non-floating type) and floating rubber fender.

Solid rubber fender (non-floating type) is a kind of anti-collision equipment for wharf ships with a long history and a wide range of applications.

Floating rubber fender can float freely in the water, according to its internal buffer medium can be divided into inflatable rubber fender and foam-filled rubber fender.

The inflatable rubber fender uses compressed air as the medium, and the impact energy is consumed through work done by compressed air.

Foam-filled fender is also known as solid polyurethane fender. The internal buffer medium is mainly closed cell foaming materials, such as foamed EVA, foamed polyurethane and foamed rubber, etc.