What Are Mining Wheel Tires?
The tires of mining vehicles are specially designed for extreme working conditions. Its structure is more complex than that of ordinary vehicle tires. It mainly consists of two parts: tires and rims.
Mining tires are high-strength tires specially used in extremely harsh environments such as mines, quarries and construction sites. They are usually used in heavy equipment such as mining dump trucks, wheel loaders, bulldozers, excavators and scrapers, and can withstand high loads, harsh terrain and long-term operation.
Mining tires use high-strength rubber and thickened carcasses, which can support vehicle weights of tens or even hundreds of tons. Suitable for heavy-load transportation and extreme environments in mining areas.
The tread adopts a deep pattern design to enhance grip and reduce tire slippage. The multi-layer cord layer and steel wire structure provide puncture resistance and reduce the risk of damage from stones and debris.
The special rubber formula is resistant to high temperature and aging, and is suitable for long-term operation. Low rolling resistance design reduces fuel consumption and improves work efficiency.
Adapt to various complex terrains, rugged, muddy, and rocky mining roads. Deep patterns, block patterns, and transverse patterns that adapt to different terrains improve passability.
Mining rims refer to high-strength steel rims specifically used for mining vehicles, such as mining dump trucks, mining wheel loaders, articulated trucks, etc., which are used to carry overweight loads, adapt to extreme environments, and are used in conjunction with mining tires to ensure stable operation of the vehicle.
The super-strong load-bearing capacity can withstand the weight of mining equipment ranging from tens to hundreds of tons. Made of high-strength steel, it has a stable structure and excellent impact resistance. It can adapt to harsh road conditions to cope with rocks, slag, potholes, and muddy roads in mines. The rim structure is strong and reduces the risk of deformation and cracking.
The multi-piece structure facilitates tire replacement, and the side rings and lock rings are removable, which reduces downtime and improves maintenance efficiency.
The rims are coated with rust-proof and anti-corrosion coatings to extend service life, and the wear-resistant surface treatment improves anti-oxidation and anti-mud erosion capabilities.
This combination allows mining vehicles to maintain efficient operation in extreme environments, extend service life, and reduce maintenance costs!
We are the No. 1 off-road wheel designer and manufacturer in China, and also the world's leading expert in rim component design and manufacturing. All products are designed and produced according to the highest quality standards.
We have a research and development team composed of senior engineers and technical experts, focusing on the research and application of innovative technologies, and maintaining a leading position in the industry. We have established a complete after-sales service system to provide timely and efficient technical support and after-sales maintenance to ensure that customers have a smooth experience during use. We have more than 20 years of experience in wheel manufacturing. We are the original rim supplier in China for well-known brands such as Volvo, Caterpillar, Liebherr, and John Deere.
We provide 19.50-49/4.0 rims for Caterpillar's popular mining dump truck CAT 777.




CAT 777 is a Caterpillar mining dump truck, mainly used in open-pit mines, large earthworks and construction sites, and can efficiently transport ore, rock and bulk materials. It is known for its high load capacity, strong power and durability, and is suitable for harsh working environments.
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For its large load capacity, strong power and high stability, we have developed and produced high-load and 19.50-49/4.0 impact-resistant rims for use.
What are the advantages of choosing 19.50-49/4.0 rims?
19.50-49/4.0 rims are mainly suitable for mining rigid dump trucks and super-large wheel loaders, and are used in extreme environments such as mines, quarries, and open-pit mines.
1. Such rims have super strong load-bearing capacity and are suitable for 49-inch super-large mining tires, which can support mine trucks or loaders weighing more than 100 tons.
Strengthen the structural design to ensure stability under high-intensity loads and reduce the risk of tire blowouts or rim deformation.
High load-bearing capacity to meet the needs of heavy-duty mining trucks. Strong impact resistance to adapt to harsh mining road conditions.
2. High wear resistance and corrosion resistance to adapt to extreme mining environments
High-strength alloy steel is used to improve impact resistance and wear resistance to avoid fatigue damage during long-term use. Surface anti-corrosion coating to enhance rust resistance and adapt to the humid, muddy, acidic and alkaline environment of mining areas.
It can extend the service life of the rim, reduce the frequency of replacement, and is resistant to harsh environments, suitable for high humidity and high dust conditions.
3. The 5-piece structure is adopted for easy maintenance, and the parts can be replaced independently to reduce maintenance costs. With high-pressure pneumatic tires, it is easier to disassemble and assemble, reduce the downtime of mining equipment, and improve work efficiency.
4. Improve tire stability and reduce wear. The rim size precisely matches the 49-inch mining giant tire, optimizes the shoulder support, and reduces uneven tire wear.
- The enhanced tire lock ring design ensures that the tire will not shift or slide in harsh environments, improving safety.
High durability, adaptability to harsh environments, strong anti-deformation ability, ensuring long-term and stable use.
Choosing 19.50-49/4.0 rims can significantly improve the carrying capacity, durability, safety and maintenance convenience of mining dump trucks and super-large wheel loaders. Its high-strength structure, wear-resistant materials and optimized support design make it an ideal choice for mines, quarries, and large-scale construction projects.
We not only produce mining vehicle rims, but also have a wide range of involvement in engineering machinery, forklift rims, industrial rims, agricultural rims and other rim accessories and tires.
The following are the various sizes of rims that our company can produce in different fields:
Engineering machinery size:
8.00-20 | 7.50-20 | 8.50-20 | 10.00-20 | 14.00-20 | 10.00-24 | 10.00-25 |
11.25-25 | 12.00-25 | 13.00-25 | 14.00-25 | 17.00-25 | 19.50-25 | 22.00-25 |
24.00-25 | 25.00-25 | 36.00-25 | 24.00-29 | 25.00-29 | 27.00-29 | 13.00-33 |
Mine rim size:
22.00-25 | 24.00-25 | 25.00-25 | 36.00-25 | 24.00-29 | 25.00-29 | 27.00-29 |
28.00-33 | 16.00-34 | 15.00-35 | 17.00-35 | 19.50-49 | 24.00-51 | 40.00-51 |
29.00-57 | 32.00-57 | 41.00-63 | 44.00-63 |
Forklift wheel rim size:
3.00-8 | 4.33-8 | 4.00-9 | 6.00-9 | 5.00-10 | 6.50-10 | 5.00-12 |
8.00-12 | 4.50-15 | 5.50-15 | 6.50-15 | 7.00-15 | 8.00-15 | 9.75-15 |
11.00-15 | 11.25-25 | 13.00-25 | 13.00-33 |
Industrial vehicle rim dimensions:
7.00-20 | 7.50-20 | 8.50-20 | 10.00-20 | 14.00-20 | 10.00-24 | 7.00x12 |
7.00x15 | 14x25 | 8.25x16.5 | 9.75x16.5 | 16x17 | 13x15.5 | 9x15.3 |
9x18 | 11x18 | 13x24 | 14x24 | DW14x24 | DW15x24 | 16x26 |
DW25x26 | W14x28 | 15x28 | DW25x28 |
Agricultural machinery wheel rim size:
5.00x16 | 5.5x16 | 6.00-16 | 9x15.3 | 8LBx15 | 10LBx15 | 13x15.5 |
8.25x16.5 | 9.75x16.5 | 9x18 | 11x18 | W8x18 | W9x18 | 5.50x20 |
W7x20 | W11x20 | W10x24 | W12x24 | 15x24 | 18x24 | DW18Lx24 |
DW16x26 | DW20x26 | W10x28 | 14x28 | DW15x28 | DW25x28 | W14x30 |
DW16x34 | W10x38 | DW16x38 | W8x42 | DD18Lx42 | DW23Bx42 | W8x44 |
W13x46 | 10x48 | W12x48 | 15x10 | 16x5.5 | 16x6.0 |
We have more than 20 years of experience in wheel manufacturing. The quality of all our products has been recognized by global OEMs such as Caterpillar, Volvo, Liebherr, Doosan, John Deere, Linde, BYD, etc. Our products have world-class quality.

Post time: Mar-10-2025