3.3m * 6.5m Yokohama Docking Marine Rubber Fenders Net Type
Product Introduction
1. Outer rubber of marine rubber fender
The outer rubber layer covering the outside of the fender protects
the cord layer and the inner rubber from wear and other external
forces. The material has sufficient tensile strength and tear
strength to withstand any weather conditions and arduous use. The
standard color is black, and Hener can provide other colors upon
request.
2. The inner rubber of marine rubber fender
The rubber membrane lining seals the compressed air inside the
fender.
3. Synthetic tire cord layer for reinforcement
The reinforcement layer is made of synthetic tire cord commonly
used in tires, arranged at an ideal angle to maintain internal
pressure and evenly distribute stress, thereby providing a powerful
and effective reinforcement.
4. Swivel shackles at both ends of the fender
Place a steel ring on one end (or both ends) of the fender and fix
one end of the rope layer.
5. Fender flange
A steel flange is installed on the mudguard, and an air valve or
safety valve can be installed.
6. The safety valve of the fender
Fenders with a fender diameter of 2500mm and larger should be
equipped with safety valves to release excessive internal pressure
when the fender is accidentally over-compressed. Mudguards with a
diameter less than 2500mm can be equipped with safety valves as
required.
7. The metal fittings of the fender
All relevant metal fittings of the pneumatic fender, including
shackles, towing rings, swivels, chain nets, are made of stainless
steel, which can resist seawater corrosion.
Features of Marine Rubber Fender
1. Good external wear resistance
2. Strong pressure bearing capacity
3. Rubber is resistant to aging
4. Long service life of fender
5. Good air tightness of the fender
6. The fender is easy to store
7. The fender is not deformed after use
8. Simple fender installation
9. The functions and applications of fenders are more extensive
10. Fenders are installed on the docks and piers for mooring
Specificaton of Marine Rubber Fender
| Size | Initial Internal Pressure 50kPa | Initial Internal Pressure 50kPa |
Diameter/ Meter | Length /Meter | Energy Absorption /KJ | Reaction Force /KN | Energy Absorption /KJ | Reaction Force /KN |
| 0.5 | 1 | 6 | 64 | 8 | 85 |
| 0.7 | 1.5 | 17 | 137 | 24 | 180 |
| 1.0 | 1.5 | 32 | 182 | 45 | 239 |
| 1.0 | 2.0 | 45 | 257 | 63 | 338 |
| 1.2 | 2.0 | 63 | 297 | 88 | 390 |
| 1.5 | 3.0 | 153 | 579 | 214 | 761 |
| 1.7 | 3.0 | 191 | 639 | 267 | 840 |
| 2.0 | 3.5 | 308 | 875 | 430 | 1150 |
| 2.5 | 4.0 | 663 | 1381 | 925 | 1815 |
| 2.5 | 5.5 | 943 | 2019 | 1317 | 2653 |
| 3.0 | 5.0 | 1050 | 2000 | 1571 | 2709 |
| 3.0 | 6.0 | 1312 | 2488 | 1888 | 3292 |
| 3.3 | 4.5 | 1175 | 1884 | 1640 | 2476 |
| 3.3 | 6.0 | 1675 | 2783 | 2338 | 3652 |
| 3.3 | 6.5 | 1814 | 3015 | 2532 | 3961 |
Outer and Inner Rubber Material Requirements of Marine Rubber
Fenders
Test item |
Test method | Required value |
| Outer rubber | Inner rubber |
| 1. Before aging | – | – | – |
| 1.1 Tensile strength | ISO 37:2011 | 18 MPa or more | 10 MPa or more |
| 1.2 Elongation | ISO 37:2011 | 400 % or more | 400 % or more |
| 1.3 Hardness | ISO 7619-1:2010 | 60 ± 10 (Durometer hardness Type A) | 50 ± 10 (Durometer hardness Type A) |
2. After aging |
ISO 188:2011 | Air oven aging, 70°C ± 1°C, 96 h | Air oven aging, 70°C ± 1°C, 96 h |
| 2.1 Tensile strength | ISO 37:2011 | Not less than 80 % of the original property | Not less than 80 % of the origi- nal property |
| 2.2 Elongation | ISO 37:2011 | Not less than 80 % of the original property | Not less than 80 % of the origi- nal property |
| 2.3 Hardness | ISO 7619-1:2010 | Not to exceed the original prop- erty by more than 8 | Not to exceed the original prop- erty by more than 8 |
| 3. Tear | ISO 34-1:2010 | 400 N/cm or more | No requirement |
| 4. Compression set | ISO 815-1:2008 | 30 %(70 ± 1 °C, 22hours) or less | No requirement |
5. Static ozone aging test |
ISO 1431-1:2012 | No cracks after elongation by 20 % and exposure to 50 pphma at 40
°C for 96 h |
No requirement |
NOTE If the colour of the outer cover is not black, the material
requirements will differ from those in this table. a Parts of ozone per hundred million of air by volume. |
Notice Of Fender Application And Storage
1. The fender pressure should be kept in the standard pressure
,within the rate of ± 5% range.
2. Often check the pressure , when the pressure drops, Inflate the
fender in time, so as not to affect the normal use of the fender.
3. When connecting the fender with a steel wire rope, the wire rope
should be fitted with a rubber sleeve to avoid damage to the fender
4. Do not touch the fender surface with the the sharp objects , to
prevent piercing the fender. If the fender's surface is damaged, it
will affect the lifespan of the fender.
5. When the fender is in normal use, the fixing points should be
firm, prevent the detachment and wash away the fender. Suspension
of the rope and hook ring should be connected orderly , can’t be in
a mess.
6. If the fender won’t be used in a long time , to clean the fender
surface with fresh water, and place the fender in a dry, cool,
ventilated place, without direct sunshine.
7. When the fender is stored for a long time, the pressure should
be reduced and the fender should be placed far away from the heat
source.
8. Because the fender is rubber product, should try to avoid the
fireworks, not contact with acid, alkali, oil and other organic
solution
9. When the fender is stored, it shall not be folded or stacked,
and don’t stack other objects on the fender.
