Multi-leaf Double Eye Air Suspension Guide Arm for Dongfeng Truck
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Dual-Eye Opening Design: Features precision-forged double eyelets at both ends, allowing for secure and robust pin-and-bushing connections to both the chassis bracket and the axle assembly. This design ensures precise lateral guidance of the axle, effectively preventing unwanted lateral shifting or rotation during heavy load transit.
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Multi-leaf Hybrid Construction: Unlike standard single parabolic springs, this guide arm utilizes a multi-leaf configuration (typically combining several high-tensile steel leaves) to provide enhanced initial stability and progressive load response. This hybrid approach offers superior resistance to fatigue and sagging compared to conventional air bellows alone.
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Air Suspension Integration: Engineered to be used in conjunction with pneumatic air springs, the rigid multi-leaf structure acts as a stabilizing guide while the airbags handle the primary vertical load. This combination delivers exceptional ride comfort, optimal ground clearance, and automatic load-leveling across varying payloads.
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High-Strength Alloy Steel: Manufactured from premium heat-treated alloy steel, the guide arm exhibits outstanding tensile strength and impact resistance, capable of withstanding the rigors of long-haul transportation and harsh operating environments.
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Precision Shot Peening & Coating: The entire assembly undergoes precision shot peening to relieve internal stresses and enhance fatigue life. Additionally, it is treated with advanced electrophoretic or powder coating to ensure superior corrosion resistance, even in high-moisture or saline conditions.
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Enhanced Stability: The double-eye design combined with the rigid multi-leaf structure provides precise axle guidance, minimizing lateral movement and improving overall vehicle handling.
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Optimized Load Management: Works synergistically with air suspension systems to automatically adjust to load changes, ensuring consistent ride height and weight distribution.
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Extended Service Life: The combination of high-strength materials and advanced surface treatments results in a significantly longer operational lifespan with reduced maintenance requirements.
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Improved Ride Comfort: By effectively isolating road vibrations and shocks, this guide arm contributes to a smoother, quieter cabin experience for drivers during extended hauls.
🏭About Zhengzhou Haishuo Automotive Parts Co., Ltd.
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.
