The inflatable rubber ball is a rubber-sealed vessel with rubber-dipped fabrics as skeleton, which could float on waters after injected with compressed air and then used as STS and STD buffer. Meanwhile, the inflatable rubber ball could absorb the impact energy of ships and reduce its reactive force and greatly improve the safety of ships upon berthing. 

1.Sunshine inflatable rubber ball is made from top quality natural rubber with other assistant ingredients including styrene butadiene rubber etc. which ensures durability and high wearing resistance of airbags. The rubber content of airbag could be up to over 56% and its tensile strength over 20MPa.

2.The skeleton material of Sunshine inflatable rubber ball is single three-strand top quality chinlon dipped cord fabrics with its single tensile strength up to 313.6N which greatly improves the product performances and service life.

3.The rubber ball may be easily corroded by sea water due to long stay in sea water. Sunshine inflatable rubber ball employs the corrosion resistant flanges and stainless steel accessories, which ensures longer service life and less maintenance. 4.Sunshine uses advanced 3D animation simulation technology to perform simulation test based on the approach speed, buffer force and collision direction etc. prior to STS or STD berthing to calculate the max. stress factor and then work out the most rational structural layout. This method effectively guarantees protection and safety of ships.

The structures:

1.Outer layer rubber

 The rubber layer refers to the layer covering the external surface of ball used to protect fender skeleton materials
2.Cord rubber

 The cord rubber is the tension layer of ball, whose skeleton materials chinlong 6" cord is made from high strength cord used for tire making. This cord density is 90(±1.5)chinlon every each 10cm and three strands in single cord with its breakage strength up to 313.6N

3.Inner layer rubber

The rubber refers to the rubber layer on the inside wall of the ball, used to prevent air leakage and maintain the fender pressure.

4.End flange 

  The flange is the metal pieces on both sides of fender and used for hoisting and air inflation or discharge.