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The three common reasons for the damage to rubber boat bumpers
The three common reasons for the damage to rubber boat bumpers

With the rapid development of the marine industry, it appears that rubber boat bumpers have become rising important to shipping gradually. For shipping safety, it is significant to take measures to protect ships and use boat fenders. Do you know why the dock fender is broken? Then let me introduce the three common reasons for rubber boat bumpers' damage.

The ship overload

This kind of damage usually happens in the rubber fender, especially the old ones, which tend to crack at weak points in the structure. Cracks are generally along the length of the rubber fender. It mostly happens in D and V types. The main reason for the cracking of rubber piling fenders is that the ship's energy of motion to impact the fender is so big that it surpasses the load capacity of the rubber fender. As a result of the exaggerated kinetic energy of the impact for a ship, the stopping angle and speed are too large. Especially when the angle of stopping is too large, the bow touches the pier and rubber fender midway ahead of the hull, which causes a strong impact of kinetic energy gathered into one or several fenders and finally the damage of the rubber fender. In addition to the reasons above, the wharf berthing bigger than the design ship type and shipping tonnage, and the storm's influence on the ship can also cause the enormous ship impact of kinetic energy.

Poor anchoring and connection

This has occurred in all kinds of rubber fenders. The looseness, dislocation, falling off into the sea, and other abnormal phenomenons for rubber fenders are mainly caused by poor technological conditions of bolt or chain anchoring fenders or behindhand maintenance. The metal materials used for fixing fenders, such as anchor bolt, chain, etc., are quickly rusty in the marine environment and hard to change, which causes the bad fixing of rubber fenders and serious influence on the normal use for fenders. Some anchor bolts may get considered the change conditions in their design. However, it is not often so ideal in practice. For instance, the anchor bolt of V type of rubber fender in the form of an embedded bolt box was intended to be convenient to change and maintenance. But actually, it can not get changed for iron rusty, bolt deformation, etc., which affects the fixing quality of rubber fenders and finally causes the falling off and damage of them.

Friction damage

The condition often occurs in the stationary V and D fenders. The arris defect, crack, abrasion, and other damages for rubber fenders are mainly caused by too large friction between rubber fenders and boats. When the boat docks at a tangential speed, the contact segment between rubber fenders and ships is forced to move with the ship for the large friction, which causes the fender sheared and damage. Moreover, during the berthing job, sometimes the ship needs a shuttle and will sway for waves. Under the circumstance, it will result in fender damage when the friction coefficient is more than 0.4 (such as too tightly pulling the cleat) between the ship and rubber fender.

After understanding the reasons for the damage to rubber boat bumpers, we should take measures to prevent the above conditions from happening. If you are looking for boat bumpers for docks, the Real Top is your best choice. E-mail: [email protected]

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