Pneumatic Rubber Fender

(8) Cautions of pneumatic rubber boat fender
1. Users should often check that the rubber fender is damaged or not and the air pressure is normal or not. The valve core should be changed every 6 months.
2. When use a wire cable to tie the fender, the wire cable should be covered with a rubber tube to protect the fender from being damaged. The contact surface of the fender should not have sharp or hard protruding object.
3. In the adjustment of the internal pressure, the nuts of accessories and fixtures should not be loosened.
4. When using the rubber fender, the cord network should be firm, and the cable wire used for suspending metal parts and the looped links should not be knotted chaotically.

Storing of pneumatic rubber boat fender
1. If the boat fender is not used for a long time, it should be washed and dried. Inflate a moderate amount of compressed air into the fender, and store it in a dry, shady and ventilated place.
2. The place used to store the rubber fender should be far from heat source.
3. The pneumatic fender should not contact with acid, alkali, grease, and organic solvent.
4. When rubber fenders are not in use, they should not be stacked together and heavy objects should not put on them.

(9) Accessories
Our pneumatic rubber boat fender is equipped with the following accessories:
1. valve core: 5 pieces
2. Valve core key: 1
3. Valve mouth pipe: 1 pieces
4. Rubber tube: Φ8mm×500mm
5. Pressure meter: 1 pieces

Specification, size, performance and weight of pneumatic rubber boat fender

Specification(D×L) Initial charged pressure (Po 0.05MPa) Initial charged pressure (Po 0.08MPa)
Weight of ball(kg) R(kN) GEA(KJ) Weight of ball (kg) R(kN) GEA(KJ)
0.5×1.0 25 64 6 25 83 8
0.6×1.0 32 74 8 32 96 11
0.7×1.5 50 137 17 50 178 24
1.0×1.5 80 182 32 80 235 44
1.0×2.0 100 257 45 125 335 63
1.2×2.0 120 297 63 165 386 86
1.35×2.5 165 427 102 226 554 140
1.5×3.0 315 597 153 370 751 211
1.7×3.0 405 639 191 436 830 263
2.0×3.5 590 875 308 632 1138 424
2.5×4.0 1050 1381 663 1110 1815 925
2.5×5.0 1333 2019 943 1410 2653 1317
3.0×5.0 1880 2104 1210 215 2709 1571
3.0×6.0 2160 2583 1485 2470 3292 1888
3.3×4.5 2020 1884 1175 2300 2476 1640
3.3×6.0 2300 2783 1675 2600 3652 2338
3.3×6.5 2700 3015 1814 3080 3961 2532

Remarks:
The compression deflection is 60%±5%. R---reaction force, GEA---energy absorption
Weight is the weight of ball (excluding jacket) and weight tolerance is ±10%. Reaction force tolerance is ±10%.

Selection of pneumatic rubber boat fender
Here are some examples of selecting pneumatic fenders. The number of fenders depends on the length of ship and the working conditions.

For small and medium sized boats and vessels

Shipping tonnage Size of dependable ball(D×L)(m) Remarks
50 0.5×1.0 Fisher
100 0.7×1.5-1.0×1.5 Fisher
200 1.0×1.8-1.0×2.0 Fisher, Tugboat
300-500 1.2×2.0-1.5×2.5 Fisher, Tugboat
1000 1.5×2.5-1.5×3.0 Tugboat, Transport vessel
3000 2.0×3.0-2.0×3.5
Ocean trawler, Transport vessel
10000 2.0×3.5-2.5×5.0 Transport vessel

For super tanker

A Vessel(DWT) B Vessel(DWT) Assumed fender meeting velocity (m/s) Effective movement energy (KJ) Size of dependable ball(D×L)
300,000 200,000 0.15 1230 3.3×6.5
150,000 0.15 1030 3.3×6.5
100,000 0.15 781 3.3×6.5
200,000 150,000 0.15 882 3.3×6.5
100,000 0.15 693 3.0×6.0
85,000 0.15 618 3.0×5.0
100,000 85,000 0.17 617 3.0×5.0
50,000 0.18 511 3.0×5.0
40,000 0.20 544 3.0×5.0
50,000 40,000 0.20 425 2.5×5.5
30,000 0.22 437 2.5×5.5
20,000 0.25 443 2.5×5.5
20,000 15,000 0.27 318 2.5×4.0
10,000 0.30 309 2.0×3.5
5,000 0.35 253 2.0×3.5
10,000 5,000 0.35 212 2.0×3.5
3,000 0.40 196 2.0×3.5
1,000 0.50 127 2.0×3.0

Size of parts used in installation

Size of dependable ball(D×L)(m) Steel cable(mm) Chain or nylon rope (mm) Shackle (mm) Embedded bolt (mm)
0.5×1.0 12 14 14 18
0.6×1.0 12 14 14 20
0.7×1.5 14 16 18 25
1.0×1.5 14 16 18 25
1.0×2.0 14 16 18 25
1.2×2.0 16 16 18 28
1.35×3.0 16 18 18 28
1.7×3.0 18 18 22 28
1.5×3.0 20 20 24 30
2.0×3.5 24 24 28 34
2.5×4.0 24 26 28 34
2.5×5.5 24 26 28 34
3.3×4.5 26 28 30 40
3.3×6.5 28 30 32 60

Thanks for your visit. All of our products are CCS certified and are successfully exported to many countries, such as America, Spain, Russia, France, Belgium, Brazil, Argentina and Singapore. For any inquiry, please don't hesitate to contact us! You will find Hengsheng offers the best prices!

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