High Performance Leaf Spring for Volvo Trucks

High Performance Leaf Spring for Volvo Trucks

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High Performance Leaf Spring for Volvo Trucks​

Designed exclusively for Volvo’s heavy-duty truck platforms, our High Performance Leaf Spring​ is engineered to meet the rigorous demands of modern long-haul transportation, regional distribution, and vocational applications. As a critical component of the vehicle’s suspension system, this leaf spring delivers exceptional load-carrying capacity, superior vibration damping, and enhanced durability—ensuring optimal ride comfort, safety, and uptime for fleet operators. Whether navigating challenging terrains or cruising on highways, this spring is built to withstand the harshest conditions while maintaining peak performance.

Technical Design & Engineering Advantages​

Optimized Material Composition & Forging Process

Crafted from premium-grade alloy spring steel (such as 60Si2MnA or 55CrMnA), the leaf spring undergoes a meticulous forging and heat-treatment process to achieve an ideal balance of strength, flexibility, and fatigue resistance. The material’s high yield and tensile strength enable it to support heavy payloads without permanent deformation, while its exceptional toughness allows it to absorb shocks and impacts from uneven road surfaces, protecting both the truck’s chassis and its cargo.

Precision Engineering for Consistent Performance

Each leaf spring is manufactured using advanced CNC machining and precision forming techniques. The curvature, thickness, and taper of every leaf are calculated and cut to exacting tolerances, ensuring uniform load distribution and consistent spring rates across the entire suspension. This precision minimizes uneven tire wear, enhances vehicle stability during braking and cornering, and reduces the risk of “spring breakage” under repeated stress cycles.

Innovative Surface Treatment & Corrosion Resistance

To combat the elements encountered in diverse operating environments—from coastal humidity to de-icing salts on winter roads—the spring features a multi-layered surface protection system. This typically includes a high-temperature shot peening process to induce compressive residual stresses (improving fatigue life) and a durable powder-coated or epoxy-painted finish that provides excellent corrosion resistance. Some models may also incorporate zinc-nickel plating for extended service life in extreme conditions.

Ergonomic Design for Ride Comfort & Stability

The leaf spring’s geometry is carefully optimized to balance load support with ride comfort. Its progressive stiffness design allows for a softer initial deflection (absorbing minor road imperfections) while maintaining the necessary rigidity for heavy loads. This design not only improves driver comfort but also enhances the truck’s handling characteristics, reducing body roll and pitch during acceleration, deceleration, and turns.

Applications & Compatibility​

This high-performance leaf spring is specifically designed as a direct replacement for Volvo truck models, including but not limited to:
  • Volvo FH Series​ (FH12, FH16, etc.) for long-haul and heavy-haul applications.
  • Volvo FM Series​ (FM400, FM500, etc.) for regional distribution and construction.
  • Volvo FMX Series​ for heavy-duty construction and off-road operations.
  • Volvo NH Series​ and legacy models requiring robust suspension upgrades.
It is compatible with various suspension configurations, including front axle, rear axle, and bogie suspensions, making it a versatile solution for comprehensive fleet maintenance or upgrade projects.

Key Benefits for Fleet Operators​

  • Reduced Downtime:​ Superior fatigue resistance and corrosion protection extend service intervals, minimizing unplanned maintenance and maximizing vehicle availability.
  • Enhanced Safety:​ Stable load distribution and improved handling reduce the risk of accidents caused by suspension failure or loss of control.
  • Lower Total Cost of Ownership (TCO):​ High durability and reduced wear on related components (e.g., bushings, shock absorbers) translate to lower long-term maintenance costs.
  • Improved Driver Satisfaction:​ A smoother ride reduces driver fatigue, contributing to better focus, safety, and retention.

Quality Assurance & Certifications​

Manufactured in ISO-certified facilities, each leaf spring undergoes rigorous quality control checks, including load testing, fatigue simulation, and dimensional verification. Many products comply with international standards such as SAE J1123 (for leaf spring design) and ISO 9001 (quality management), ensuring consistent performance and reliability across every unit.

Installation & Support​

Our High Performance Leaf Spring is designed for straightforward, bolt-on installation, minimizing downtime during replacement. Comprehensive technical documentation, including torque specifications and alignment guidelines, is provided to ensure proper fitting. Additionally, our dedicated customer support team offers expert advice on selection, installation, and post-installation troubleshooting.

🏭About Zhengzhou Haishuo Automotive Parts Co., Ltd.

We are a professional manufacturer and exporter of heavy-duty truck suspension components, established in 2016 and located in Zhengzhou, Henan Province, China. Specializing in leaf springs, chassis parts, and suspension accessories, we have grown into one of the leading suppliers in China’s automotive leaf spring aftermarket.

Production Capacity: Over 4,000 tons of leaf springs in stock, enabling rapid order fulfillment

Global Reach: Exported to over 100 countries and regions, including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Western Europe

OEM/ODM Services: Custom manufacturing available for private label, OEM, and aftermarket projects

Quality Assurance: Backed by SGS audit certification, with dedicated QA/QC inspectors ensuring every product meets international standards

Comprehensive Product Line: Our catalog includes heavy-duty, conventional, parabolic, and trailer leaf springs, plus complete accessories like U-bolts, bushings, clips, and shackles

Leaf Spring Technical Parameters

Item Specification
Material 50CrVA / 51CrV4 / 55CrMnA / 60Si2Mn
Width 60mm – 120mm
Thickness 6mm – 30mm
Load Capacity 500kg – 20,000kg
Surface Treatment Painting / E-coating

📦Packaging, Shipping & Terms

Packaging: Standard export wooden crates or cartons with protective wrapping to prevent damage during transit

Shipping Ports: Qingdao Port, Tianjin Port and LianYun Port

Lead Time: 30 days (peak season) / 30 days (off season)

Accepted Incoterms: FOB, EXW, DDP, CIF, CFR

Payment Terms: L/C, T/T, D/P, PayPal, Western Union, small-amount payment options available

After-Sales Support: Professional sales and technical team providing order follow-up, product consultation, and after-sales service

Why Choose Our Leaf Springs

  • Manufactured using high-strength alloy steel (SUP9 / 60Si2Mn)
  • Heat-treated for improved hardness and fatigue resistance
  • Shot peening surface treatment for longer service life
  • Strict load and fatigue testing before shipment
  • OEM interchangeable fitment with Dongfeng systems
  • Stable performance under heavy-duty working conditions

FAQ

Q1: Is this part OEM or aftermarket?
A: It is an OEM-compatible replacement designed for Dongfeng truck suspension systems.

Q2: What material is used in this leaf spring?
A: High-strength alloy steel such as SUP9 or 60Si2Mn.

Q3: Can you produce customized leaf springs?
A: Yes, OEM and customized production is available.

Q4: What is your delivery time?
A: Typically 20–30 days depending on order quantity.

Q5: What vehicles is it compatible with?
A: It is suitable for various Dongfeng heavy-duty truck platforms.

Common Problems of Worn Leaf Springs

Vehicle tilting or sagging on one side
Reduced load-carrying capacity
Excessive vibration during driving
Visible cracks or deformation on spring leaves

When to Replace Leaf Springs

Leaf springs should be replaced when fatigue cracks, deformation, or reduced elasticity are observed. Delayed replacement may affect vehicle safety and suspension performance.

Important Notes

This product is an aftermarket replacement part, not an original OEM part. It is designed to fit the specified applications as a direct replacement component.

We recommend professional installation by a qualified technician to ensure proper fit, alignment, and safety.

contact us with your vehicle details or custom requirements, and our team will assist you in finding the right leaf spring solution.

Material

50CrVA, 51CrV4, 55CrMnA,60Si2Mn
Certificate

TS16949,ISO,CE
Craftsmanship

Multiple Isothermal Quenching and Tempering Proces
Specification

Customizable according to drawings
Packing

Export Standard Packing by Pallet
Weight

1500kg
Packaging size

170*60*60cm

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