Tyre Protection Chains
Tyre Protection Chains
Tyre protection chains effectively protect the tyres of loaders, excavators and similar machines against the extreme wear caused by sharp stones. They are recommended for work in stone quarries, mines, slag or scrap yards, etc.
Protection head type “H”
Design
The design uses a proven system called “protective ring connecting the links”. Tyre protection is achieved through the large contact area between the links and the ground. The links can also increase tyre grip. The rings are the connecting elements that give tyre protection chains great flexibility.
The head shape depends on customer preference – heads of type “H”, “Z” or “U”.
Protection head type “Z”
TYRE PROTECTION CHAINS WITH TYPE “H” HEADS
TYRE PROTECTION CHAINS WITH TYPE “U” HEADS
TYRE PROTECTION CHAINS WITH TYPE “Z” HEADS
Type “4”
4 protection links coming out of the ring
Type “6”
3 protection links coming out of the ring
The protective effect of the chain depends on the arrangement of the links or the number of links held by the ring.
Material and heat treatment
Protection links: chrome-molybdenum steel
Connecting rings: chrome-nickel steel
The chain is case-hardened to 0.08d (d = ring diameter)
Service life of tyre protection chains:
the approximate service life of tyre protection chains is shown in the table below.
The life of tyre protection chains is influenced in particular by:
the unevenness of the ground the hardness of the rock the size and angles of the rock pieces the engine power and weight of the machine the maintenance of the tyre protection chains
|
Rock type |
LOM 11.4.H Service life (hours) |
LOM 13.4.H Service life (hours) |
LOM 16.4.H Service life (hours) |
LOM 18.4.H Service life (hours) |
|
Igneous rocks granite, quartz, andesite, basalt, diabase
Metamorphic rocks marble, quartzite, gneiss
Sedimentary rocks sandstone, limestone, slate
Other slag, iron ore, manganese ore, copper ore, iron scrap |
1.530 – 3.060 2.500 – 3.825
2.975 – 5.100 850 – 2.210 1.530 – 2.210
1.020 – 2.380 4.250 – 12.750 1.020 – 1.530
1.870 – 3.400 2.125 – 3.400 2.125 – 2.975 1.700 – 3.400 2.125 – 3.400 |
1.800 – 3.600 3.000 – 4.500
3.500 – 6.000 1.000 – 2.600 1.800 – 2.600
1.200 – 2.800 5.000 – 15.000 1.200 – 1.800
2.200 – 4.000 2.500 – 4.000 2.500 – 3.500 2.000 – 4.000 2.500 – 4.000 |
2.700 – 5.400 4.500 – 6.750
5.250 – 9.000 1.500 – 3.900 2.700 – 3.900
1.800 – 4.200 7.500 – 22.500 1.800 – 2.700
3.300 – 6.000 3.750 – 6.000 3.750 – 5.250 3.000 – 6.000 3.750 – 6.000 |
3.300 – 6.200 5.200 – 7.800
6.100 – 10.300 1.900 – 4.500 3.300 – 4.500
2.000 – 4.800 13.000 – 24.000 2.000 – 3.100
3.800 – 6.900 4.400 – 6.900 4.400 – 6.100 3.400 – 6.900 4.400 – 6.900 |
Information required when ordering
The order must include the following information:
information on the machine type, the type of rock and the nature of the work
(e.g. loading rock after blasting) tyre information:
– manufacturer
– size
– profile
– tread design
– degree of wear the type of protection chains required
