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Vehicles & two-wheelers
Heavy Duty Leaf Spring China Factory and Suppliers for Trucks and Agricultural Vehicles
Leading China factory and trusted suppliers of premium heavy-duty parabolic and multi-leaf springs. Precision-engineered for heavy trucks and agricultural machinery to ensure reliable performance under extreme loads.
SupplierHaixing Hemco Auto Parts Co Ltdwww.chinaleafspring.com
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About this product
Product information from the supplier.
Our Heavy Duty Leaf Springs are precision-engineered to excel in the most grueling environments, specifically designed for commercial heavy-duty trucks and high-performance agricultural vehicles. By utilizing top-grade spring steel and implementing advanced heat treatment technology, we ensure these components provide unparalleled load-bearing capacity, exceptional durability, and a stable riding experience under extreme pressure.
We specialize in providing direct OEM replacement parts with exact fitment for global brands such as Scania, Mercedes-Benz, and Volvo. Beyond our standard catalog, we offer comprehensive custom manufacturing services, leveraging reverse engineering from physical samples or technical drawings to meet your specific load requirements and vehicle specifications.
Detailed Parameters
| Material Options | 60Si2Mn, SUP9, 51CrV4, 60CrMnBA | Load Capacity | 3 Tons to 12+ Tons per axle |
|---|---|---|---|
| Steel Grades | SUP11, SUP13, SUP10, SUP6/SUP7 | Fitment Support | OEM & Custom Made |
| Treatment Process | Shot Peening & Multi-stage Heat Treatment | Surface Protection | Anti-corrosion Coating |
| Customization | Drawings, Physical Samples, VIN matching | Application Range | Trucks, Tractors, Harvesters, Trailers |
| Quality Testing | Dynamic Fatigue & Load-deflection Curve | Certifications | Material Composition Analysis |
Key Advantages
High-Tensile Strength
Utilizing premium 60Si2Mn and 51CrV4 steel to maximize fatigue resistance and prevent structural failure.
Extended Service Life
Shot peening and advanced heat treatments significantly reduce wear and tear in harsh environments.
OEM Precision Fit
Guaranteed exact fitment for Scania, Mercedes, and Volvo, ensuring seamless installation and operation.
Custom Engineering
Professional reverse engineering based on samples to create bespoke springs for specialized machinery.
Load Stability
Optimized load-deflection curves provide superior stability and safety for heavy-duty hauling.
Corrosion Resistance
Industrial-grade anti-corrosion coatings protect the steel against salt, moisture, and chemicals.
Product Gallery
Management Platforms
OEM Direct Supply
Fast-track replacement parts for mainstream heavy truck brands with guaranteed compatibility.
Custom Manufacturing
End-to-end production from technical drawings or physical samples to final product.
Quality Control
Rigorous chemical analysis and hardness testing on every batch of spring steel.
Fatigue Testing
Dynamic load testing to ensure stability and safety over millions of cycles.
Brand Customization
Private labeling and OEM branding options for distributors and wholesalers.
Agile Production
Supporting everything from small batch trial orders to large-scale mass production.
Investment Return Comparison
| Feature | Standard Springs | Our Heavy Duty Springs |
|---|---|---|
| Lifespan | Average | Extended (Heat Treated) |
| Load Capacity | Fixed Range | Customizable (Up to 12+ Tons) |
| Maintenance | Frequent Replacement | Low Frequency / High Durability |
| Fitment Accuracy | Generic Fit | Exact OEM / VIN Matched |
| Corrosion Rate | High (Standard Paint) | Low (Industrial Coating) |
Frequently Asked Questions
Q: How do I ensure the leaf spring fits my specific vehicle model?
The most accurate way is to provide us with your vehicle's VIN (Vehicle Identification Number) or the specific OEM reference number. We also support reverse engineering if you can provide a physical sample or detailed technical drawings.
Q: What materials are used for your heavy-duty leaf springs?
We use high-tensile spring steels including 60Si2Mn, SUP9, 51CrV4, and 60CrMnBA, depending on the load requirements. These materials are selected for their superior fatigue resistance and elasticity.
Q: Can you manufacture leaf springs for non-standard agricultural machinery?
Yes, we provide full custom manufacturing services. Whether it's for a custom farm trailer or a specialized harvester, we can design and produce springs based on your specific load and dimension requirements.
Q: What quality tests are performed before shipping?
Every batch undergoes material composition analysis, hardness and tensile strength testing, dynamic fatigue testing, and salt spray tests to ensure maximum corrosion resistance.
Q: Do you support small batch trial orders for new designs?
Absolutely. We support small batch trial orders to allow customers to verify the performance and fitment of custom designs before moving to mass production.
Q: How does shot peening improve the leaf spring's performance?
Shot peening creates compressive residual stresses on the surface of the steel, which significantly inhibits the initiation and propagation of fatigue cracks, thereby extending the overall lifespan of the spring.
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Haixing Hemco Auto Parts Co Ltd
