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What is an OTR tire?
The letters "OTR" stands for "OFF THE ROAD". The OTR tires are specially designed for equipment and vehicles used in mining, quarrying, construction, industrial and port handling, etc. Hence, the tires shall be well adapted to deliver good traction on uneven, muddy, or icy road surfaces, to bear a heavy load, and to provide good resistance to wear and heat building.
Types of OTR tires
OTR tires can be divided into different ways:
By tire construction type, they can be divided into Radial OTR tires and Bias OTR tires;
By the difference in rim diameter, they can be divided into the Small and Medium Sizes (35'' and smaller) and Giant Sizes (35'' and bigger)
By applications, they can be divided into Material Handling and Earthmoving;
Guideline on how to use tyres
1. Tyre and Rim
(1) Check carefully before tyre mounting to see if the rim sizes are identical to those marked on sidewalls.
(2) The tyre should be fitted as much as possible to standard rims or allowable rim range.
(3) The tyre should not be fitted to deformed rims or non-conformity rims.
WARNING: Deformed rims or non-conformity rims will result in premature tyre toe failure or blow out to hurt People.
2. In ated Pressure
(1) Rules should be followed to inflate the tyre (Figure1)
(2) It is not appropriate to inflate the tyre over pressure and then release the air to standard pressure.
(3) Check the tyre pressure regularly and replenish when the air pressure is not found Sufficient.
WARNING: Tyre under-pressure will cause decreased loading capacity, easy cord breaking and dangerous blow out,Tyre overpressure will
cause cord strength loss and dangerous blow out.
3. Load
(1) Select the tyre of corresponding ply rating and load based on the vehicles, standard loading capacity.
(2) The tyre of low ply rating can not bear high load. The tyre load can not be increased by the increase of inflated pressure.
(3) The load should be distributed evenly on the vehicle. (Figure2)
WARNING: Overload will cause a serious injury to the tyre or the people. The vehicle with the load unevenly distributed will cause some of tyres serious overload, which is one of the factors causing accidents.
4. Speed
The tyre should match the vehicle in operating speed and operate in the range of specified speed for vehicle.
WARNING: Over speed will cause quicker tread wear, rapid heat build up, tyre strength deterioration, separations and even tyre blow out.
5. Pre-ride of Tyres
When new tyres have been mounted, the pre-ride should be taken below 50km/h for 200km for normal tyres .Through the pre-ride new tyres will adapt to deformation, remove the stress caused during
manufacturing, decrease heat build up and extend tyre performance life.
6. Others
(1) Quick start up, urgent braking, sharp turning, striking by sharp
obstacles, contacts with corrosives and oil contaminants, operation in high temperature, etc. will cause premature tyre failures.
Size | Ply rating | Load capacity (kg) |
Inflation pressure | Section width (mm) |
Overall diameter (mm) |
Tread depth (mm) |
Type |
18X7-8NHS | 16 | 1640 | 1000 | 173 | 465 | 18 | TT |
5.00-8NHS | 10 | 1150 | 1000 | 137 | 470 | 15 | TT |
6.00-9NHS | 10 | 1505 | 860 | 160 | 540 | 15 | TT |
6.50-10NHS | 10 | 1655 | 790 | 175 | 590 | 16 | TT |
7.00-12NHS | 12 | 2375 | 860 | 190 | 676 | 21 | TT |
28X9-15NHS(8.15-15) | 14 | 3050 | 970 | 220 | 710 | 18 | TT |
8.25-15NHS | 14 | 3775 | 830 | 235 | 840 | 23 | TT |
250-15NHS | 18 | 4110 | 1030 | 250 | 735 | 23.5 | TT |
300-15NHS | 18 | 5530 | 830 | 300 | 840 | 23.5 | TT |
7.50-16NHS | 12 | 3195 | 790 | 215 | 805 | 22 | TT |
9.00-20NHS | 16 | 5595 | 860 | 259 | 1018 | 25 | TT |
4.00-12 | 6 | 240 | 360 | 110 | 535 | 10 | TT |
4.00-14 | 4 | 270 | 340 | 110 | 590 | 10 | TT |
4.00-14 | 6 | 350 | 400 | 110 | 590 | 10 | TT |
4.00-16 | 6 | 800 | 400 | 110 | 640 | 10 | TT |
4.50-14 | 8 | 1000 | 450 | 120 | 602 | 10 | TT |
4.50-16 | 6 | 615 | 360 | 122 | 655 | 10 | TT |
4.50-16 | 8 | 1000 | 450 | 122 | 655 | 10 | TT |
5.00-14 | 8 | 500 | 450 | 130 | 620 | 12 | TT |
5.00-15 | 8 | 675 | 450 | 140 | 665 | 10 | TT |
6.00-16 | 6 | 495 | 250 | 165 | 745 | 13 | TT |
6.50-20 | 8 | 865 | 420 | 180 | 860 | 16 | TT |
Construction and Structure of OTR tires
Characteristics of special tires
1. Longer service life, can provide greater endurance under heavy load environment.
2. More stable, the application of new skeleton materials improves the anti-impact blasting performance of tires, and the safety is higher.
3. Optimized tread formula design, puncture resistance, high tear resistance;
4. Better adhesion and traction under harsh conditions
5. Composite tread design reduces tire heat generation and improves heat dissipation;
6. All block pattern design, good driving and braking performance.
7. Super traction performance: The tire has good drainage and mud discharge functions, which can improve greater traction in muddy conditions.
8. Deepen pattern design, better wear resistance.
9. The mine pattern is designed with a special formula, which has lower heat generation, and the tread is anti-cut, tear-resistant and super wear-resistant.
10. Strong adhesion and traction: The wide and strong tread pattern realizes the perfect fit of adhesion, traction and damage prevention.
Good traction and stability, comfortable load.
11. Extraordinary anti-skid performanc
Our company offers international logistics services that are cost-effective, efficient, and secure. Here is a brief overview of the services we provide for a high-quality one-stop international procurement experience, from factories to destination ports:
Q1. What is your terms of payment? A: T/T, L/C, PayPal, West Union. 30% T/T in advance, 70% balance against by copy of B/L
Q2. What is your terms of delivery? A: FOB, CIF, CFR
Q3. How about your delivery time? A: Usually, it will take 30 to 45 days after receive your deposit. In fact the delivery time according to your order quantity.
Q4. Can you produce according to the samples and confirm the quality? A: Yes, we will produce the same to the sample, our engineer and quality control team will manage the production and check each step one by one to make sure that the final products are qualified before shipment.
Q5. What is your accepted payment Currency? A: USD or RMB(Less).