OTR is the abbreviation of Off-The-Road, which means "off-road" or "off-highway" application. OTR tires and equipment are specially designed for environments that are not driven on ordinary roads, including mines, quarries, construction sites, forest operations, etc. These environments usually have uneven, soft or rugged terrain, so specially designed tires and vehicles are needed to cope with them.
The main application areas of OTR tires include:
1. Mines and quarries:
Use large mining trucks, loaders, excavators, etc. to mine and transport minerals and rocks.
2. Construction and infrastructure:
Including bulldozers, scrapers, rollers and other equipment for earthwork and infrastructure construction at construction sites.
3. Forestry and agriculture:
Use special forestry equipment and large tractors for deforestation and large-scale farmland operations.
4. Industrial and port operations:
Use large cranes, forklifts, etc. to move heavy goods in ports, warehouses and other industrial facilities.
Features of OTR tires:
High load capacity: able to withstand the weight of heavy equipment and full loads.
Abrasion and puncture resistance: suitable for dealing with harsh conditions such as rocks and sharp objects, and can resist punctures from sharp objects such as stones, metal fragments, etc.
Deep pattern and special design: provide excellent traction and stability, prevent slipping and rollover, and adapt to muddy, soft or uneven ground.
Strong structure: including bias tires and radial tires to adapt to different uses and working environments, able to withstand extreme loads and harsh working conditions.
Multiple sizes and types: suitable for different heavy equipment such as loaders, bulldozers, mining trucks, etc.
OTR rims (Off-The-Road Rim) refer to rims (wheels) specially designed for OTR tires to support and fix tires and provide necessary structural support for heavy equipment for off-road use. OTR rims are widely used on mining equipment, construction machinery, agricultural machinery and other large industrial vehicles. These rims must have sufficient strength and durability to cope with harsh working environments and heavy load conditions.
In general, OTR involves a variety of specialized equipment and tires designed to improve operating efficiency and safety in harsh, off-road conditions. These tires are designed specifically for harsh working environments and provide excellent durability and performance.
Since 2021, TRACTION has been supporting Russian OEMs. TRACTION's rims have undergone rigorous OEM customer verification. Now in the Russian (and Belarus and Kazakhstan) market, TRACTION's rims have covered industries, agriculture, mining, construction equipment and other fields. TRACTION has a wide range of loyal partners in Russia.
At the same time, we also provide OTR tires for the Russian market. In order to meet the market demand for 20-inch and 25-inch solid tires, TRACTION developed its own brand of solid tires in 2023. Our company is one of the few companies that produces both rims and solid tires, and can provide tire + rim assembly solutions.
We also produce many rims of different specifications in the mining field where OTR tires are widely used. Among them, the 19.50-49/4.0 rims provided by our company for CAT 777 mining dump trucks have been unanimously recognized by customers. The 19.50-49/4.0 rim is a 5PC structure rim of TL tires and is commonly used in mining dump trucks.
The Caterpillar CAT 777 dump truck is a very well-known mining rigid dump truck (Rigid Dump Truck), mainly used in mining, quarries and large earthmoving projects. The CAT 777 series dump trucks are popular for their durability, high efficiency and low operating costs.
Main features of CAT 777 dump truck:
1. High-performance engine:
CAT 777 is equipped with Caterpillar's own diesel engine (usually Cat C32 ACERT™), which is a high-power, high-torque engine that provides excellent power performance and fuel efficiency, suitable for continuous operation under high-load conditions.
2. Large load capacity:
The maximum rated load capacity of CAT 777 dump truck is usually around 90 tons (about 98 short tons). This load-bearing capacity enables it to move a large amount of materials in a short time and improve work efficiency.
3. Strong frame structure:
The high-strength steel frame and suspension system design ensure that the vehicle can withstand long-term use under heavy loads and harsh environments. Its rigid frame provides good structural strength and stability, suitable for extreme operating conditions in mines and quarries.
4. Advanced suspension system:
Equipped with an advanced hydraulic suspension system to reduce bumps, improve operator comfort, and effectively reduce load impact, extending the service life of the vehicle and its components.
5. Efficient braking system:
Use oil-cooled disc brakes (oil-immersed multi-disc brakes) to provide reliable braking performance and longer service life, especially suitable for use in long-term downhill or heavy load conditions.
6. Optimized driver operating environment:
The cab design focuses on ergonomics, providing good visibility, comfortable seats and convenient control layout. The modern version of the CAT 777 is also equipped with advanced displays and vehicle control systems, allowing operators to easily monitor vehicle status and performance.
7. Advanced technology integration:
The new generation of CAT 777 dump trucks is equipped with a variety of advanced technologies such as Vehicle Health Monitoring System (VIMS™), automatic lubrication system, GPS tracking and remote control operation support to improve operating efficiency and maintenance management.
What is the working principle of a mining dump truck?
The working principle of a mining dump truck mainly involves the synergy of the vehicle power system, transmission system, braking system and hydraulic system, which is used to transport and dump large amounts of materials (such as ore, coal, sand and gravel, etc.) in mines, quarries and large earthmoving projects. The following are the key parts of how a mining dump truck works:
1. Power system:
Engine: Mining dump trucks are usually equipped with a high-power diesel engine, which provides the main power source of the vehicle. The engine converts the heat energy generated by burning diesel into mechanical energy and drives the vehicle's transmission system through the crankshaft.
2. Transmission system:
Gearbox (transmission): The gearbox transmits the power output of the engine to the axle through the gear set, adjusting the relationship between the engine speed and the vehicle speed. Mining dump trucks are usually equipped with automatic or semi-automatic transmissions to adapt to different speed and load conditions.
Drive shaft and differential: The drive shaft transmits power from the gearbox to the rear axle, and the differential on the rear axle distributes power to the rear wheels to ensure that the left and right wheels can rotate independently when turning or on uneven ground.
3. Suspension system:
Suspension device: Mining dump trucks usually use hydraulic suspension systems or pneumatic suspension systems, which can effectively absorb the impact during driving, improve the driving stability of the vehicle on uneven terrain and the comfort of the operator.
4. Braking system:
Service brake and emergency brake: Mining dump trucks are equipped with powerful braking systems, including hydraulic brakes or pneumatic brakes, and oil-cooled multi-disc brakes to provide reliable braking force. The emergency brake system ensures that the vehicle can stop quickly in an emergency.
Auxiliary brake (engine brake, retarder): Used during long downhill driving, engine brakes or hydraulic retarder can reduce wear on the brake disc, avoid overheating, and enhance safety.
5. Steering system:
Hydraulic steering system: Mining dump trucks usually use hydraulic power steering systems, which are powered by hydraulic pumps and steering cylinders control the steering of the front wheels. The hydraulic steering system can maintain smooth and light steering performance when the vehicle is heavily loaded.
6. Hydraulic system:
Lifting system: The cargo box of the mining dump truck is lifted by a hydraulic cylinder to achieve dumping operation. The hydraulic pump provides high-pressure hydraulic oil to push the hydraulic cylinder to lift the cargo box to a certain angle, so that the loaded materials can slide out of the cargo box under the action of gravity.
7. Driving control system:
Human-machine interface (HMI): The cab is equipped with various operating and monitoring devices, such as steering wheel, accelerator pedal, brake pedal, gear lever and dashboard. Modern mining dump trucks also integrate digital control systems and display screens to facilitate operators to monitor vehicle status in real time (such as engine temperature, oil pressure, hydraulic system pressure, etc.).
8. Working process:
Normal driving stage:
1. Starting the engine: The operator starts the engine and transmits power to the wheels through the transmission system to start driving.
2. Driving and steering: The operator controls the steering system through the steering wheel to adjust the speed and direction of the vehicle so that the vehicle moves to the loading point within the mine area or construction site.
Loading and transportation stage:
3. Loading materials: Usually, excavators, loaders or other loading equipment load materials (such as ore, earthwork, etc.) into the cargo box of the mining dump truck.
4. Transportation: After the dump truck is fully loaded with materials, the driver controls the vehicle to the unloading site. During transportation, the vehicle uses its suspension system and large-size tires to absorb the instability of the ground to ensure stable driving.
Unloading stage:
5. Arrival at the unloading point: After reaching the unloading position, the operator switches to neutral or parking mode.
6. Lifting the cargo box: The operator starts the hydraulic system and operates the hydraulic control lever, and the hydraulic cylinder pushes the cargo box to a certain angle.
7. Dumping materials: The materials automatically slide out of the cargo box under the action of gravity, completing the unloading process.
Return to the loading point:
8. Put down the cargo box: The operator puts the cargo box back to the normal position, ensures that it is safely locked, and the vehicle returns to the loading point to prepare for the next transportation.
9. Intelligent and automated operation:
Modern mining dump trucks are increasingly equipped with intelligent and automated functions, such as autonomous driving systems, remote operation, and vehicle health monitoring systems (VIMS), which improve work efficiency and safety and reduce the risk of human operating errors.
These systems and working principles of mining dump trucks complement each other to ensure that they can perform heavy-load transportation tasks efficiently and safely in harsh environments.
The following are the sizes of mining dump trucks we can produce.
|
Mining dump truck |
10.00-20 |
|
Mining dump truck |
14.00-20 |
|
Mining dump truck |
10.00-24 |
|
Mining dump truck |
10.00-25 |
|
Mining dump truck |
11.25-25 |
|
Mining dump truck |
13.00-25 |
Our company is widely involved in the fields of mining rims, forklift rims, industrial rims, agricultural rims, other rim components and tires.
The following are the various sizes of rims that our company can produce for different fields:
Engineering machinery sizes: 7.00-20, 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
Mining sizes: 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 sizes are: 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 sizes are: 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, DW16x26, DW25x26, W14x28 , DW15x28, DW25x28
Agricultural machinery sizes are: 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
Our products have world-class quality.
Post time: Sep-09-2024