In underground mining operations, vehicles operate for extended periods in narrow tunnels, high humidity, dusty environments, and complex road conditions, placing extremely high demands on the load-bearing capacity, durability, and safety of the wheel system.
As one of the world's top three manufacturers of engineering machinery rims, HYWG leverages its extensive experience in the mining industry to provide high-performance wheel assembly solutions for underground mining vehicles, featuring 12.00-20 pneumatic tires paired with 8.50-20/1.7 rims, ensuring the efficient and stable operation of mining equipment.
This wheel assembly is widely used in underground mining transport vehicles, underground service vehicles, mine material transport vehicles, underground auxiliary operation vehicles and other equipment, and demonstrates excellent performance under various harsh working conditions.
The HYWG 8.50-20/1.7 rim is manufactured using high-quality, specialized rim steel, offering exceptional load-bearing capacity, impact resistance, and fatigue strength. It is effectively capable of withstanding the heavy loads and frequent impacts encountered during mining transport operations.
Advantages of the 12.00-20 pneumatic tire + 8.50-20/1.7 rim assembly
Excellent load-bearing capacity
Underground mining transport vehicles typically need to be frequently loaded with heavy ore and equipment. The HYWG 8.50-20/1.7 wheel rims are made of high-strength steel produced in-house and have undergone rigorous structural design and finite element analysis verification, enabling them to effectively withstand the enormous radial and lateral loads generated when the vehicle is fully loaded.
HYWG 's R&D team , comprised of technical experts, designed the 12.00-20 industrial pneumatic tire paired with 8.50-20/1.7 rims based on the working conditions of underground mining operations .
The 12.00-20 pneumatic tire features a reinforced carcass structure design, effectively distributing load pressure and maintaining stable performance even under full load or overload conditions. This forms a stable and reliable load-bearing system, ensuring excellent operational stability during heavy-duty transportation and significantly improving overall vehicle transport efficiency.
Excellent impact resistance
Underground mine surfaces are often uneven, containing rocks, loose ore, and complex obstacles. HYWG rims are manufactured using high-strength rim-specific steel and advanced welding processes, providing excellent impact resistance.
The tires are made with a high-strength rubber compound and a reinforced tire structure design, which provides excellent impact and puncture resistance, effectively reducing the risk of damage caused by external impacts and improving continuous operation capability.
Such a wheel assembly can effectively reduce the risk of rim deformation, improve the overall reliability of vehicle operation, and reduce downtime for maintenance, even under high-frequency impacts and harsh road conditions.
Improve vehicle operation safety
The wheel system is one of the most critical safety components of underground mining vehicles.
HYWG strictly implements the international quality management system, and conducts full-process quality control from steel production , rim forming, welding processing to final testing to ensure that every wheel assembly has stable and reliable performance.
Precise tire and rim matching design further improves tire installation stability, effectively reduces stress, and provides greater safety assurance for mining operations.
The tire and rim system is designed with a reasonable match to maintain good grip and driving stability under complex road conditions, effectively improving vehicle handling performance, reducing the risk of sideslip and abnormal wear, and improving overall operational safety.
Longer service life
By optimizing the rim structure design and material properties, HYWG wheel assemblies can effectively cope with the long-term high-intensity working environment of underground mines.
The HYWG 12.00-20 tire, through optimized structure and material ratios, improves heat dissipation and heat resistance, thereby extending its service life . Paired with 8.50-20/1.7 rims offering excellent fatigue resistance and corrosion resistance , it reduces customer maintenance costs and spare parts replacement frequency, thus improving overall equipment operating efficiency.
HYWG's core manufacturing advantages
HYWG is one of the few wheel rim manufacturers in the industry with a complete industrial chain production capability.
The company has achieved fully independent production from the rolling of special steel for wheel rims to the manufacturing of finished wheel rims, including:
• Rim steel research and rolling
· Rim forming process
Automated welding production
Heat treatment process
• Coating treatment
• Assembly
Full -size inspection
1. Billet
2. Hot Rolling
3. Accessories Production
4. Finished Product Assembly
5. Painting
6. Finished Product
This "one-stop" production model not only determines the safety ceiling, consistency, and long-term reliability of wheel rims from the source, but also ensures that all products meet uniformly high standards, truly achieving full-chain manufacturing and quality control for wheel rims. Furthermore, it enables rapid response to customers' personalized needs.
Strict quality control system
HYWG has established a comprehensive quality management system, and its products have passed multiple international standard certifications. Each set of underground mining wheels undergoes the following assembly processes:
• Dimensional accuracy inspection
- destructive testing of welds
Dynamic balancing test
• Product vibration detection
Fatigue test
• Paint adhesion test
We ensure that our products meet the stringent safety and reliability requirements of mining customers worldwide.
Extensive experience in the mining industry
Since its inception, HYWG has leveraged over 30 years of experience to continuously provide rim and wheel assembly solutions to global mining equipment manufacturers and mining customers. Its products are widely used in underground mining trucks , rigid dump trucks, wheel loaders, graders, and articulated trucks. With its extensive application experience and continuous innovation capabilities, HYWG has become a trusted partner in the global mining industry.
As an original equipment manufacturer (OEM) rim supplier in China for well-known brands such as Volvo, Caterpillar, Liebherr, and John Deere , HYWG products are exported to more than ten countries including North America, Europe, Australia, and Russia , making it a trusted partner for OTR users worldwide .
Post time: Jun-03-2026