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OTR tyres is the short name for Off the Road tyres. As the name describes, tyres for giant vehicles such as dump trucks or loaders fall within this category. Mostly, these tyres operate in mine areas or at port and terminals.
Our Factory
Keman is committed to manufacture top quality tyres and wheels,bringing safety to every customers' automobile.At present the company has nearly 1100 patents,1800 employees.Our core value is Safety,Openness, Collaboration.
Our Product
Our products includes truck tyres,car tyres,industry tyres,OTR tyres,steels wheels,aluminum wheels with Keman brand and Polonez brand.
Production Market
Our products have been sold more than 70 countries and regions,200 containers are loaded and ship to all over the world every day.
Our Service
All of Keman products enjoy 3 years warranty.With providing global customers with the most valuable products and services as own duty,Keman has established perfect after service to maintain a great brand image.
1. SUVA is SUV tyres with entire traffic pattern designed for SUV, pickup.
2. The use of a wide travelling surface to improve tire grip
As the only part of the vehicle that directly contacts with the ground, the heavy duty truck tyres have a great impact on the vehicle's driving performance and safety. It can bear the weight of the car, and together with the car suspension, it can ease the impact force when the car is running, so as to ensure that the car has good riding comfort and driving stability.
The all steel radial tyres are specially designed for the driving wheel of concrete mixer truck. The tire is designed with horizontal grooves and shoulder patterns, with excellent traction and braking performance.
The radial truck tires are a radial tire for trucks and buses in various road conditions. It has excellent guidance and anti sideslip performance.
The tread design of pcrb pattern increase the friction between tires and ground,at the same improves the griping on dry and wet road condition,which makes drving smoothly.
PCRV car tyre is load-pattern designed for light truck and van;
High wear-resistant tread compound to improve tire mileage;
Large tread pattern brings superior handling avility.
OTR tyre RO31 is versatile E3/L3 tread pattern designed for Loader,Dozer,Grader,Scraper,Dumpand other euuipment used for construction,stockpile and loading application.
ROL50 is off the road tyres for Underground Mining Truck,Scooptram,Articulate Truck,Underground loader,Grader,Dozer,Loader
What is OTR Tyres?
OTR tyres is the short name for Off the Road tyres. As the name describes, tyres for giant vehicles such as dump trucks or loaders fall within this category. Mostly, these tyres operate in mine areas or at port and terminals.
Robust Construction
OTR tyres are constructed with reinforced steel belts and thick, durable rubber compounds to resist punctures and tears. For instance, Bostone OTR tyres feature steel belts that are 20% thicker than industry standards, enhancing their durability and lifespan.
Deep Tread Depth
The tread depth of an OTR tyre can range from 25 mm to 60 mm, depending on the specific application and tyre size. This deep tread enables superior traction and better heat dissipation, critical in extending the tyre's operational life.
Heat Tolerance
Bostone OTR tyres are designed to tolerate temperatures up to 100°C, ensuring performance stability in high-heat environments typical of mining and construction sites.
Load Capacity
OTR tyres are rated for different load capacities, with some capable of supporting over 100,000 kg. Bostone's heavy-duty tyres, for example, are engineered to handle extreme weights, significantly reducing the risk of blowouts under strain.
C = Compactor
A compactor is a kind of construction equipment that is used to compact and reduce the volume of different materials. For example, waste, gravel, and soil. It usually has a big, heavy roller or plate. This presses down on the material to compact it and give it a more solid, stable surface. Compactors are frequently used in landfills, road construction, and other projects where obtaining a dense and firm base is important.
G = Grader
A grader is a kind of construction equipment used to grade and level surfaces, usually landscapes or roadways. The operator can shape, fill, and cut the ground to create the appropriate slope or level. This is thanks to the long blade's adjustable angles and depth. Graders are essential for creating and maintaining smooth, level surfaces on roads, which promotes efficient and safe transportation.
E = Earthmoving
The process of moving large amounts of soil, earth, or other materials is called "earthmoving." This process modifies the landscape to excavate or perform construction. Bulldozers, excavators, loaders, and graders, among others, are some of the equipment used in this category. This type of equipment is important to many building projects. Especially where changing the natural topography is necessary, like mining, site preparation, and building roads.
L = Loader and bulldozer
First, another heavy-duty piece of machinery used for lifting, scooping, and transporting materials is a loader. Some of the materials this equipment transports are soil, gravel, and debris. Loaders typically have a front-mounted bucket. This element is used to collect materials from the ground and load them into trucks or other containers.
Unparalleled Durability and Strength
One of the most notable features of OTR tires is their exceptional durability and robustness. These tires are designed to withstand the toughest conditions, from uneven terrain to sharp rocks and even extreme temperatures. This makes them the ideal choice for situations where standard tires fall short.
Suitable for Various Terrains
OTR tires are designed to excel on a variety of terrains. Whether on muddy construction sites, rocky mines or sandy agricultural lands, OTR tires provide excellent traction and stability. This not only increases productivity, but also reduces the risk of accidents and vehicle damage.
Excellent Resistance to Wear
Thanks to the sturdy construction and the use of high-quality materials, OTR tires have an impressive resistance to wear. This means they last a long time, even under the most demanding conditions. This results in significant long-term savings as tires need to be replaced less often.
Enhanced Safety
Safety is paramount in sectors where OTR tires are used. Due to their superior grip and stability, these tires significantly reduce the risk of accidents. In addition, they contribute to the protection of the vehicle itself, as they are more resistant to damage from sharp objects.
Efficiency and Productivity
The reliable performance and durability of OTR tires allows vehicles to operate longer and more efficiently. This results in increased productivity and less downtime for maintenance and repairs. Vehicles with OTR tires can also often operate faster on rough terrain, contributing to increased efficiency.
The manufacturing process of OTR tyres at involves several detailed and controlled steps to ensure each tyre meets stringent quality and performance standards:
Material Selection: High-quality natural and synthetic rubber, along with specific chemicals and reinforcing materials such as carbon black and silica, are selected to provide the base compounds for durability and performance.
Mixing: These materials are mixed in controlled environments to create a homogeneous rubber compound. The mixing process is crucial for achieving the desired physical properties in the final product.
Building the Tyre: The tyre building process is highly automated and precise. Each layer of rubber compound, fabric, and steel cords is assembled meticulously.uses advanced robotic technology to ensure each layer is perfectly aligned and free of air pockets.
Curing and Vulcanization: After building, the tyre is cured in a press under high heat and pressure. This step is essential for shaping the tyre and developing its final properties. curing process uses pressures up to 350 psi and temperatures around 150°C to ensure robust curing.
Quality Control: Each tyre undergoes a series of tests, including X-ray inspections, balance testing, and pressure testing to ensure it meets the operational standards. For example, each OTR tyre is tested to withstand pressures up to 850 psi, significantly higher than typical operational pressures.
Selecting the right OTR tyres involves considering several factors:
Terrain:
Different terrains require different tread patterns and tyre constructions. Understanding the specific conditions where the tyres will be used is crucial for making the right choice.
Load Requirements:
Ensure that the tyres chosen can support the weight of the vehicle and the loads it will carry. Overloading tyres can lead to premature wear and failure.
Manufacturer Reputation:
Choosing a reputable manufacturer like ensures that you receive high-quality tyres that meet industry standards. advanced manufacturing processes and stringent quality control measures guarantee reliable performance and durability.
R&D and Innovation
Commitment to research and development (R&D) ensures that their OTR tyres incorporate the latest technological advancements. Continuous innovation in tyre design and materials leads to improved performance, safety, and longevity. This focus on R&D positions as a leader in the tyre manufacturing industry, providing cutting-edge solutions to meet the evolving needs of their customers.
Despite the benefits, OTR tire recycling faces several challenges. These tires are significantly larger and more complex than standard tires, which require advanced recycling processes and machinery.
High Processing Costs
The heavy-duty machinery needed to shred and separate OTR tires can be costly, creating a barrier for smaller recycling facilities. In addition, transporting these tires from remote industrial locations to recycling centers incurs additional expenses.
Regulatory Compliance
Recycling OTR tires must meet strict environmental and safety regulations. Ensuring compliance involves rigorous testing and quality control measures, which can add to operational costs.
Limited Market for Recycled Materials
Though there are many uses for recycled OTR rubber, the market can be limited. This limitation often impacts profitability for recycling businesses, which rely on consistent demand to stay viable.
The Future of OTR Tire Recycling
As industries continue to focus on sustainability, the future of OTR tire recycling looks promising. New technologies, increased regulation, and an emphasis on environmental responsibility will likely drive further innovation and growth in this sector.
Increased Regulatory Support
Governments worldwide are introducing stricter tire disposal and recycling regulations, promoting environmentally responsible practices. Incentives and subsidies for recycling operations encourage further growth.
Public Awareness and Corporate Responsibility
Rising public awareness and demand for corporate responsibility are pushing industries to adopt sustainable practices. Companies are expected to recycle and improve production practices to support a circular economy.
Advances in Recycling Technology
Technological innovations in recycling are anticipated to make OTR tire recycling more efficient, reduce costs, and increase the feasibility of large-scale operations.
Our Factory
At present,the technical index of products has reached standards of the US Department of Transportation(DOT) and the Economic Committee of Europe(ECE), ISO/TS 16949 Certificate ,furthermore,it has passed the certification of ISO9001 uality Management System ,ISO14000 environment system attestation.
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