Full Taper Leaf Spring OEM: WG9725522011 for SINOTRUK is manufactured from high-strength spring steel for heavy-duty suspension systems. Featuring a full taper design, it provides stable load distribution, improved fatigue resistance, and reliable performance for commercial trucks operating in freight transportation, logistics, construction, and mining applications.
Specifications
|
Spring Number |
2 |
|
Size |
90x25 |
|
Painting Colour |
black,gray,red |
|
Bushings |
Bi-Metal Bushings |
|
Application |
SINOTRUK |
|
OEM References |
WG9725522011 |
|
Spring Material |
60Si2Mn SUP9/55CrMn 50CrVA 51CrV4 52CrMoV4 |
|
Packing Way |
Square Wood Wooden Pallet Metal Pallet |
|
MOQ |
50 |
|
Warranty time( used time) |
6 months |
Key Advantages
- High-strength spring steel provides excellent load-bearing capacity and long service life.
- Full taper leaf design helps distribute stress more evenly, reducing fatigue cracks under repeated heavy loads.
- Precision heat treatment and tempering improve elasticity, dimensional stability, and suspension performance.
- Electrophoretic coating offers better corrosion resistance and longer storage life than conventional painted finishes.
- Bi-metal bushings support accurate installation, reduce wear, and improve suspension reliability during operation.
Typical Applications
Heavy-duty truck manufacturing
Commercial vehicle fleet maintenance
Logistics and freight transportation
Construction equipment transportation
Mining and industrial hauling
Customization Options
Product Customization
|
Item |
Available Options |
|
Spring Material |
60Si2Mn, SUP9/55CrMn, 50CrVA, 51CrV4, 52CrMoV4 |
|
Leaf Thickness |
Customized according to technical requirements |
|
Spring Width |
Customized dimensions |
|
Surface Finish |
Black electrophoretic coating, gray, red, or customized manual painting |
|
Bushings |
Bi-metal bushings or specified alternatives |
|
Hardness |
Customized according to application requirements |
Branding Service
- OEM manufacturing
- Customer logo marking
- Private label packaging
- Customized labels and carton marks
- Customized product identification
Manufacturing & Quality Assurance
Manufacturing Process
- Spring steel material inspection
- Cutting and blank preparation
- Eye rolling and end forming
- Full taper rolling
- Heat treatment
- Quenching and tempering
- Shot blasting
- Assembly and bushing installation
- Electrophoretic coating or customized painting
- Final assembly and packaging
Quality Assurance
- Raw material chemical composition analysis
- Dimensional inspection
- Hardness testing
- Load and deflection testing
- Fatigue performance verification
- Coating thickness inspection
- Surface appearance inspection
FAQ
Q: How do I verify compatibility with my suspension system?
A: Provide the OEM number, technical drawing, or detailed dimensions. Our engineering team will verify compatibility before production.
Q: Can I order samples before placing a bulk order?
A: Yes. Sample orders are available for quality and fitment evaluation. Sample and freight charges are discussed according to project requirements.
Q: What is your standard production lead time?
A: Normally 15–30 days after deposit confirmation. Orders with multiple specifications or special materials may require additional production time.
Q: Can I arrange third-party product inspection?
A: Yes. SGS, BV, TÜV, Intertek, or customer-appointed inspectors are welcome before shipment.
Q: Do you keep stock for immediate shipment?
A: Some standard models may be available in stock. Most OEM leaf springs are manufactured according to confirmed orders.
Q: What export documents can you provide?
A: We can provide the commercial invoice, packing list, bill of lading, certificate of origin, and other required export documents upon request.
Q: What after-sales support do you provide?
A: We provide technical support, product traceability, batch inspection reports, and warranty service. The standard warranty period is 6 months under normal operating conditions.
Q: How should leaf springs be stored before installation?
A: Store the products in a dry, ventilated indoor environment. The electrophoretic coating helps protect against corrosion during long-term storage, but prolonged exposure to moisture should be avoided.
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