Solid Rubber Fender
What is Solid 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. According to the force of rubber fender, it can be divided into shear type, rotation type and compression type, etc. According to the structure of fender, solid rubber fender can be divided into D type, cone type, drum type, fan type, rectangle type, cylindrical type fender, etc.
production process
We are a professional manufacturer of airbags and fenders with a history of over 30 years in this industry. We have professional equipment (closed rubber mixing machine, open rubber mixing machine, rubber rolling machine, vulcanization canes and machines， large press machine, etc.). The whole manufacturing process could be controlled by ourselves to ensure the quality.
Transaction Cases
Qingdao LuHang Marine Airbag and Fender Co., Ltd has been devoted to the marine airbags and fenders industry for more than 30 years, Acting as a supplier of many world-class maritime enterprises, such as COSCO, CSIC, Hyundai Heavy Industries Co., Ltd, Mitsubishi Heavy Industries Co., Ltd, etc. Now, LUHANG has occupied the largest market in China and owns Many global customers who depend on professional manufacturers, Strict quality control, and guaranteed after-sale service.
Qingdao Luhang Marine Airbag and Fender Co.,Ltd is located in Jidong industrial Park, Jimo City, Qingdao. Our factory takes up the area of 4,0000㎡ with building area of 30000㎡ and has registered asset of 16million US dollars. We have devoted on marine airbags and fenders about more than 30 years.Luhang relies on its excellent product quality and many years of rich production experience. the products have been exported abroad, reaching the international advanced level, acting as a supplier of many world-class enterprise, such as COSCO, CSIC, Hyundai, Heavy Industries Co.,Ltd, Mitsubishi Heavy Industries Co.,Ltd, and have received support and recognition from customers around the world. Main market: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe.
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Vessel Protection
Rubber fenders serve as a protective barrier between a vessel and a hard surface, such as a pier or another vessel. This helps to keep both the vessel and the surface in good condition.
Durability
Rubber fenders are extremely robust and resistant to harsh marine environments, making them an excellent choice for vessel protection.
Cost-effective
Marine rubber fenders are a low-cost option for vessel protection since they require less maintenance and are less prone to damage than other types of fenders.
Versatility
Rubber fenders are available in a number of shapes and sizes, allowing them to be used in a wide range of applications and situations.
What are the Applications of Solid Rubber Fender
Container Berth
Oil and Gas Berth
General Cargo Berth
Ore Berth
Ro-Ro Berth
Shipyard
Bulk terminals
Ro-Ro and cruise terminals
Parallel motion systems
Types of Solid Rubber Fender
D fenders
The D-section fenders are widely used on tugboats and other professional vessels, as well as for mooring equipment. Fenders have both O and D-shaped inner diameters and are made primarily from extruded EPDM rubber.This provides bumpers with elasticity, inertness to chemicals and petroleum products, immunity to external factors such as temperature extremes and ultraviolet rays. D Fenders are available in many different shapes and sizes, both hollow and solid.
Super cell rubber fenders
These are also known as SC rubber fenders. Its major features include low reaction force with a high capacity of energy absorption. They have also been rated as long lasting and more preferably used on the sea docks.
Cone rubber fenders
Also referred to as Type CO fenders, they endure severe shear external force by making effective use of its conical body shape. With its high elasticity levels they are more often used in big port construction.
“Wing” DO Rubber fenders
An improved design derived from the original D-Fender, this shape offers greater stability and maintains high durability. It can be found on boats, marine assets, floating structures etc. It is not a very popular option compared to other fender types, but it does what it does well. They are also used in the general framework in wharf.
Arch type
Arched bumpers are trapezoidal rubber structures with the option of attaching a low-friction front plate or steel front frame on the surface, as well as to integrate the fender into another structure.They serve as an additional buffer to improve the performance of cylindrical fenders. They are mainly used in quays and terminals for tugboats and cargo ships where simple, reliable and durable technical solutions are required. There are arches with an extended contact part where, in addition to the main advantages of arched fenders, it is necessary to add low pressure on the hull of the vessel.
Material of Solid Rubber Fender
Natural Rubber Blends
Advances in blending natural rubber with synthetic rubbers or incorporating additives have led to enhanced performance in terms of strength, elasticity, and resistance to environmental factors.
High-Performance Elastomers
The development of elastomers with superior mechanical properties, such as high tensile strength and elongation at break, contributes to the overall effectiveness of rubber fenders.
Closed-Cell Foam Technology
Foam-filled fenders utilize closed-cell foam cores, providing excellent energy absorption and low reaction forces during impact. This design also enhances the fender’s buoyancy and reduces the risk of sinking.
Incorporation of Aramid or Carbon Fibers
Adding high-strength fibers to rubber compounds enhances the fender’s structural integrity and energy absorption capabilities. Aramid and carbon fibers are known for their excellent strength-to-weight ratios.
Composite Fender Panels
Some fender systems incorporate composite materials with layers of rubber and reinforcing fibers, providing a balance between flexibility and strength.
3D Printing
Additive manufacturing techniques, such as 3D printing, offer new possibilities in designing complex fender shapes for optimized energy absorption.
How to Choose Solid Rubber Fender
Vessel dimensions
Vessel dimensions, in terms of type and dead weight tonnage, become significant factors in choosing not only the right fender type, but also the size of the fender. The larger the vessel, the larger the required fenders will be. Usually, fenders which are equipped by frontal frames are chosen as they have large contact area. From the economical perspective, V-type fender can be one of the options. However, to yield the maximum result, super cell and super cone fender are selected. For the ports that are used for the small to medium vessel, the type A, V, M, LMD or cylindrical are chosen to protect the port wall.
Type of the port
Another significant factor that can influence in choosing the right type of fender is the type of the port. Based on the location and position of the port, there are several port structures that are usually used including dolphin, monopile, jetty and quay wall. In the dolphin terminal, the terminal consists of poles that are used for vessels to berth. Rubber fender that is usually used in this terminal is super cell fender. However, jetty terminal, which is also known as floating terminal, does not need a really tough construction as it floats. This terminal is used for passenger ships. Unlike other kinds of ports, terminals with quay wall consists of concrete structure which parallels the beach. Large vessels cannot berth on this terminal due to the shallow waters in which the terminals are usually located.
Marine environment
The marine environment, such as high and low tides of the seawater, the power of wind which influences the waves, is another factor that needs to be considered in choosing the right fender type and dimension. If there is a big difference between the high and low tides, elongated fenders must be chosen, especially when the port is used by diversely sized vessels. If a small vessel needs to berth during the low tide, it can still berth to this port. Therefore, it is recommended to have the fenders installed in vertical position. On the other hand, when the sea is windy and wavy, the water also gets rough. This causes vessels to bump into the port wall. Elongated V type fender, super cell or super cone fender equipped by frontal frames can be used for this type of port.
The availability of guidance during berthing process
The availability of tugboats during berthing process is very important in order to avoid vessels from crashing into the port wall. This is because the speed of the vessel and the berthing angle can be adjusted as the vessel moves closer to the port.
Measurement and positioning:The installer has determined the relevant dimension lines of the solid fender. When drilling the D-type fender, the processed positioning plate should be fixed with expansion bolts according to the relevant dimensions.
Drilling:Electric drill, sealant gun, screwdriver and necessary protective equipment such as gloves and mask are necessary for drilling. According to the requirements of the project, choose the corresponding specifications of the drill pipe, the length of the drill pipe should be able to meet the requirements of the drilling design depth, construction to avoid the location of the reinforcement in the substrate, mark out the drilling location, the drilling location should be correct, hole spacing according to the regulations and design requirements, the hole should be dry, otherwise it should be artificially dry treatment, to ensure that the protection porthole bolts and concrete bonding and curing before the absolute dry.
Cleaning hole with brush:After the hole is formed, the dust in the hole must be removed with an air compressor and a special round brush to avoid affecting the bonding surface due to dust isolation. First use an air compressor to blow it a few times, and then use a brush to clean the hole back and forth until there is no dust.
Cleaning hole with acetone:Clean the surrounding walls of the concrete tunnel with a brush dipped in acetone to ensure good bonding between the substrate hole wall and the structural adhesive. After the acetone volatilizes, put a paper plug on the tunnel opening in time to avoid contamination and wait for use.
Glue adjustment:The optimal construction temperature of structural adhesive is 15°C~25°C. According to the change of construction temperature, the amount of curing agent can be appropriately increased or decreased through experiments. Precise measuring instruments should be used for glue dispensing, such as balances and platform scales less than 5kg, the glue should be called first, and the curing agent should be called later. After the two-component resin glue is weighed and mixed, it should be stirred evenly. The dosage should not be too much at one time, so as not to affect the bonding quality of the construction after the glue deteriorates after a long time. Generally, the structural glue prepared at one time should be within 30min~40min. All used up.
Hole injection glue:Depending on the application form of the anchoring glue (tube-packed, mechanical injection, on-site preparation as above) and direction (upward, downward, horizontal) use the corresponding glue injection method. Glue injection can be used to fill the hole with a viscose perfusion device or other methods. Be sure to fill the hole and remove the air so that the colloid accounts for more than 80% of the hole volume.
Insert the screw:Immediately insert the screw after injecting the structural glue, and turn the screw properly to remove the air between the glue and the screw, and combine the glue evenly. Clean up the excess structural glue at the orifice, and set up a temporary support for the longer screw rod before the anchor is solidified to prevent displacement; the completed screw rod should be statically cured and maintained for Id ~ 3d, and disturbance is prohibited during curing.
How to Maintain Solid Rubber Fender
Regular Inspection
Regularly inspect the fenders for signs of wear and tear such as cracks, punctures, or deformations. Examine the chain and shackles that connect the fenders to the vessel or structure for signs of wear and tear.
Cleaning
Cleaning the fenders on a regular basis will help to eliminate dirt, grime, and other debris that may have accumulated on the surface. To avoid harming the rubber, use a light soap or detergent and a gentle brush or cloth.
Lubrication
Lubricate the chain and shackles with an appropriate lubricant to prevent corrosion and maintain good operation.
Storage
When not in use, keep the fenders in a cold, dry area. Keep them away from bright sunshine and harsh temperatures, which can degrade the rubber.
Testing
Test the fenders on a regular basis to ensure that they can still absorb the needed amount of energy. This can be accomplished by impact testing or by measuring fender compression.
Repair or Replacement
Repair or replace the fender if damage is discovered. Damaged fenders should not be used because they may not provide appropriate protection and may fail after a collision.
FAQ
Q: What is D rubber?
Q: What is the difference between a cone fender and a cell fender?
A: IRM DCN series Cone Fenders are compact fenders compared to Cell fenders. They have a higher energy absorption capacity when compared to cell fender, mainly due to the Conical shape, which allows deflection of up to 72%.
Q: Which rubber grade is best?
Q: Which rubber has highest tensile strength?
Q: What is world number 1 rubber?
Q: What is rubber fender?
Q: What is the best material for fender?
Q: What is the difference between a cell fender and a cone fender?
Q: What material is used for fenders?
Q: What is an arch fender?
We're well-known as one of the leading solid rubber fender manufacturers and suppliers in China. If you're going to buy customized solid rubber fender, welcome to get pricelist and quotation from our factory. For price consultation, contact us.
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