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Traction provides high-quality rims for CASE 721.
2026-01-21
In the field of modern construction machinery, wheel loaders are the core equipment in construction sites and mining operations. Whether it is earthmoving, transporting and stacking, or heavy-duty operations under harsh working conditions, they place extremely high demands on the performance of the wheel sets.
Traction , a leading company dedicated to the manufacture of high-end wheel rims, adheres to the core concept of safety and efficiency in engineering machinery equipment systems. It has launched high-performance wheel rim products tailored for the CASE 721 wheel loader, providing users with more reliable and efficient equipment support.
The CASE 721, a key model for the CASE brand in the medium-duty wheel loader market, has won widespread recognition for its stable power system, excellent handling, and outstanding operating efficiency. However, fully realizing its mechanical performance requires a high-standard wheelset system to match it.
To address this need, Traction offers the 17.00 - 25 / 1.7 3-piece rim, designed specifically for CASE 721. It is highly compatible with the structural parameters and load requirements of this model, ensuring optimal performance output of the entire system.
17.00-25/1.7 rim for Construction Equipmen Wheel loader CASE 721
17.00-25/1.7 is 3PC structure rim for TL tire, it’s commonly used by Grader, Wheel Loader, general vehicles. We are OE wheel rim suppler for Volvo, CAT, Liebheer, John Deere, Doosan in China.
Contact UsTraction possesses the capability to independently produce rim profiles , utilizing its own high-strength, specialized steel . This results in products that outperform ordinary standard rims in terms of concentricity , fatigue resistance , weld strength , and service life . The high-strength, high-quality steel, combined with advanced heat treatment processes, gives the rims excellent impact resistance and fatigue resistance. Even in harsh environments such as mines, gravel roads, and construction sites, they can reliably withstand high-load impacts.
Traction designed a three-piece rim based on the operating conditions of CASE 721. Compared with a one-piece rim, the three- piece rim structure is more suitable for the installation, removal, and routine maintenance of tires on large loaders, significantly reducing on-site maintenance difficulty and downtime, and improving work efficiency.
From material selection to welding, Traction boasts a "one-stop" production model . From steel rolling, mold design, high-precision forming, automated welding to surface treatment and finished product inspection , from raw materials to finished products, every step is controlled and rigorously tested to ensure that all products meet uniform high standards and guarantee long-term continuous operation reliability .
1.Billet
2.Hot Rolling
3. Accessories Production
4. Finished Product Assembly
5. Painting
6. Finished Product
The design takes into account the weight distribution and load characteristics of the CASE 721, so that the rims achieve the optimal balance in terms of load-bearing capacity, tire support and driving stability, thereby improving the overall driving performance of the machine.
Traction, as one of the world's top three OTR heavy- duty Rim Manufacturers, has accumulated over two decades of experience in designing and manufacturing high-quality rims suitable for a wide range of off-road vehicles .
We have a research and development team composed of senior engineers and technical experts, focusing on the research and application of innovative technologies to maintain a leading position in the industry. We have established a comprehensive after-sales service system, providing timely and efficient technical support and after-sales maintenance. Every process in the wheel rim manufacturing process strictly follows high-standard quality inspection procedures to ensure that every wheel rim meets international quality standards and customer requirements.
Bead seat circumference inspection
Bolt hole inner diameter inspection
Color PT inspection of straight welds
Dial indicator to detect product runout
External micrometer to detect internal micrometer to detect the inner diameter of the center hole
Non-destructive testing of product weld quality
Outside diametermicromete to detect position
Radial assembly height inspection
Radial thickness inspection
Colorimeter to detect paint color difference
External micrometer to detect internal micrometer to detect the inner diameter of the center hole
Outside diametermicromete to detect position
Paint Adhesion - Cross-cut Test
Traction
Paint film thickness meter to detect paint thickness
Paint hardness-test
Screw hole inner diameter inspection
Spoke distance
Extensive customer feedback indicates that the CASE 721 equipped with Traction rims performs exceptionally well in conditions such as overload impacts, forklifting and earthmoving, and high-frequency operations. The rims show no early cracks or deformation, and their lifespan is significantly better than the market average. The tires fit more tightly and stably, reducing the risk of tires coming off the bead. The efficiency of installation and removal is significantly improved, and daily maintenance is more convenient.
These real-world data not only validate the reliability of Traction products but also demonstrate its deep understanding of customer on-site needs.
Traction 's high-performance rims, custom-designed for the CASE 721 wheel loader, not only achieve precise matching but also provide a solid guarantee for the loader's efficient operation through reliable materials and processes, rigorous testing and quality control.
Traction 's products are exported to more than ten countries, including North America, Europe, Australia, and Russia . With leading manufacturing capabilities, rigorous quality control, and a global service system, we provide customers with reliable wheel rim solutions. We are an original equipment manufacturer (OEM) wheel rim supplier in China for renowned brands such as Volvo, Caterpillar, Liebherr, and John Deere , becoming a trusted partner for OTR users worldwide .
We have extensive involvement in the fields of engineering machinery, mining rims, Forklift Rims, industrial rims, agricultural rims, other rim components, and tires.
The following are various sizes of wheel rims that our company can produce for different applications:
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 |
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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 |
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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 |
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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 |
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Our products are of world-class quality.