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Traction's one-stop production model on wheel rim quality: the control logic from raw steel to finished product.
2026-02-24
In high-load applications such as construction machinery and mining equipment, wheel rim quality equals safety, reliability, and lifespan cost. The core factor determining the stability of wheel rim quality is not just "how well it's done in the end," but whether it is systematically controlled from the very first piece of steel.
Traction, as China's leading non-road wheel designer and manufacturer , is one of the few companies capable of realizing the entire industrial chain of wheel rim production, from steel to finished wheel rims. The one-stop production model not only ensures product consistency and reliability but also significantly improves production efficiency and cost control capabilities.
One-stop production refers to the complete closed loop of steel material, section steel, and component manufacturing, as well as welding, heat treatment, testing, and final assembly, which is completed internally by the wheel rim manufacturing enterprise, rather than multi-stage outsourcing assembly.
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1.Billet -
2.Hot Rolling -
3. Accessories Production
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4. Finished Product Assembly -
5. Painting -
6. Finished Product
It is essentially a vertically integrated quality control system, rather than simply "doing more by ourselves".
The actual load-bearing component of the wheel rim is not its surface, but the structural steel section. In the one-stop design approach , the steel section is designed by reverse engineering the rim structure , controlling wall thickness tolerances, fillet transitions, and fiber orientation , while providing safety margins for welding and heat treatment . This step directly determines fatigue resistance , crack propagation resistance , and long-term service stability .
In a multi-piece rim, each component is part of the system.
The advantage of one-stop production lies in the fact that the rim body, lock ring, and seat ring all come from the same technical standard , with closed-loop control of dimensions to avoid "fitting but not being reasonable ." The elasticity and fit clearance of the lock ring are uniformly designed . It 's not just about "being able to install," but about "not loosening, shifting, or deforming over a long period of time . "
In a one-stop system, welding parameters are highly matched with the source of steel and structural steel , and weld position, penetration depth, and heat input are predictable.
Avoid hidden cracks caused by material inconsistencies . Heat treatment processes serve overall performance, not just individual points . Eliminate residual welding stress , balance strength and toughness , and ensure stable rim operation under heavy loads and impact conditions .
One-stop production supports true end-to-end quality traceability . From steel to structural steel to parts to welding to finished products , each process can be traced back for accountability and optimized forward . Dimensions, paint , and NDT testing form system data , which means that problems can be "prevented" rather than "exposed" in the market .
This is precisely Traction The core reason why it has become trusted by OTR users worldwide .
's original equipment manufacturer (OEM) rim supplier in China , Traction views rims as never being a "replaceable part," but rather a key structural component directly related to the safety, uptime, and total lifecycle cost of the vehicle.
For this reason, Volvo has always adhered to one principle when it comes to wheel rims: not only must the performance meet the standards, but the quality must also be controllable in the long term.
As a representative model of Volvo's mid-to-large wheel loaders, the Volvo L120H is known for its high uptime, strong loading capacity, and stability, and is widely used in quarries, mines, ports, and heavy-duty earthmoving operations. In these scenarios, the wheel rim is not simply a "load-bearing component," but rather has extremely high requirements in the overall structure of the machine.
Typical operating characteristics of the Volvo L120H include high overall machine weight and large bucket load , high-frequency loading , continuous operation with steering and braking for extended periods, and impact loads under complex road conditions . This means that the wheel rims must simultaneously meet the requirements of high load stability , excellent fatigue resistance , and structural consistency over long-term use . Wheel rim systems that rely solely on outsourced assembly and have uncontrollable materials will find it difficult to maintain stable performance under such conditions over a long period.
Traction 's core advantage in supplying rims for the Volvo L120H stems from its comprehensive control over the entire process, from sourcing to finished product. For the L120H, this means that the rim's load-bearing capacity is not a "one-time achievement," but rather a long-term, repeatable structural performance.
The 22.00-25/3.0 3 -piece rims we provided for the Volvo L120H met the loader's high demands during operation.
22.00-25/3.0 rim for Mining rim Wheel loader Volvo L120H
The 22.00-25/3.0 3PC rim is a TL tire with a 3PC construction, commonly used on wheel loaders. We are the original equipment rim supplier for Volvo, Caterpillar, Liebherr, John Deere, and Doosan in China.
Contact UsIn its 3.0 structural design, Traction focuses on optimizing the strength of steel sections , wall thickness distribution in key stress areas , and the fillet and transition design in high-stress zones . For the L120H, this means that under full load and impact conditions, the rim is less prone to plastic deformation , the risk of long-cycle fatigue accumulation is significantly reduced , and the safe operating range of the rim is wider .
Traction 's 22.00-25 / 3.0 rims feature a unified structural standard for the rim body, locking ring, and seat ring during the design phase. Overall calculations of clearances and elasticity ranges ensure reliable positioning of the locking ring even under high loads . This results in higher assembly safety for the wheel , preventing loosening and uneven wear during use , and maintaining structural stability under high-load conditions .
Traction 's one-stop production capabilities ensure that every 22.00-25/3.0 rim becomes a reliable support for the L120H's high uptime.
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 construction machinery, 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 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 |
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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.