8*57 Agricultural Trailer Multi-Leaf Springs - Heavy Duty Durable Leaf Spring Assemblies for Trailers
Product Specifications
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Width
57
Thickness
8
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Product Details
| Customization: | Available |
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| After-sales Service: | Provide |
| Warranty: | Provide |
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Year of Establishment
2018-08-20
Number of Employees
37
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Basic Info.
- Model NO.
- XC10-93-17
- Material
- 60si2mn, 55crmn
- Certification
- ISO/TS16949, ISO9001, CE
- Suitable for Car Brands
- Volkswagen, WuLing, Benz, BMW, Hyundai, Honda, Toyota, Jeep, Nissan, Ford, Buick, Chery, Chevrolet, Cadillac, Geely, Roewe, Audi, Peugeot, Lexus, Volvo, Mazda, Kia
- Position
- Rear
- OEM
- Yes
- Type
- Suspension Spring
- Purpose
- Replacement/Repair Market
- Size
- Customized
- Bushing
- Customized
- Logo or Label
- as You Required
- Delivery Port
- Qingdao, China
- Design
- as Your Drawing
- Manufacturer
- Yes
- Condition
- New
- Color
- Black or as You Required
- Product Type
- Suspension Assemblies
- Surface Treatment
- Peening & Painting
- Transport Package
- Plastic Film with Pallet
- Specification
- 8*57
- Trademark
- Xiaocheng
- Origin
- Shandong, China
- HS Code
- 7320102000
- Production Capacity
- 3000t/Month
Packaging & Delivery
- Package Size
- 120.00cm * 100.00cm * 80.00cm
- Package Gross Weight
- 2000.000kg
Product Description
Product Description
Agricultural Trailer Multi-Leaf Springs
Our multi-leaf springs for agricultural trailers are specifically designed to withstand the most demanding conditions in agricultural transportation and towing. They are made from high-quality heat-treated spring steel, with each leaf engineered to endure continuous stress, heavy loads, and the harsh operating conditions commonly encountered in agricultural environments — from muddy fields to rough terrain.
How do we guarantee quality
Firstly: Ensuring Quality from the Source
We guarantee quality from the very beginning. Our spring flat bars are supplied by China's top-ranked steel manufacturer, ensuring superior material consistency and reliability for every batch.
We guarantee quality from the very beginning. Our spring flat bars are supplied by China's top-ranked steel manufacturer, ensuring superior material consistency and reliability for every batch.
Secondly: Advanced Heat Treatment Technology
With years of intensive experience in the leaf spring industry, we have built a professional team of highly skilled engineers who specialize in suspension component manufacturing. In the field of heat treatment, our advanced technologies are complemented by a wealth of hands-on expertise, allowing us to strictly control every step of production.
With years of intensive experience in the leaf spring industry, we have built a professional team of highly skilled engineers who specialize in suspension component manufacturing. In the field of heat treatment, our advanced technologies are complemented by a wealth of hands-on expertise, allowing us to strictly control every step of production.
This meticulous process ensures outstanding strength, toughness, and fatigue resistance—resulting in products and services that customers can always rely on.
The heat treatment of leaf springs is a vital process for enhancing mechanical properties such as strength, toughness, and fatigue life. It typically consists of three key stages: heating, quenching, and tempering.
During heating, the spring steel is brought to an austenitizing temperature (typically 850°C–950°C) to form a uniform austenite structure.
This is followed by quenching, where the steel is rapidly cooled—commonly in oil or water—to produce a hard martensitic structure.
Finally, tempering is performed by reheating the material to between 400°C and 600°C and holding it for a controlled period, which relieves internal stresses and refines toughness.
Through this scientifically engineered and precisely executed process, our leaf springs achieve high strength while maintaining excellent elasticity and durability, effectively meeting the strict performance demands of heavy-duty vehicles operating under complex conditions.
This is followed by quenching, where the steel is rapidly cooled—commonly in oil or water—to produce a hard martensitic structure.
Finally, tempering is performed by reheating the material to between 400°C and 600°C and holding it for a controlled period, which relieves internal stresses and refines toughness.
Through this scientifically engineered and precisely executed process, our leaf springs achieve high strength while maintaining excellent elasticity and durability, effectively meeting the strict performance demands of heavy-duty vehicles operating under complex conditions.
Thirdly: Strict Quality Inspection
We conduct comprehensive and rigorous quality testing to ensure that every leaf spring fully meets international performance standards. Our products have passed ISO 9001 certification and undergo complete quality control—from raw material selection to finished product inspection. The entire production process is traceable, and finished components are subjected to extreme performance tests to ensure consistent reliability and superior quality.
We conduct comprehensive and rigorous quality testing to ensure that every leaf spring fully meets international performance standards. Our products have passed ISO 9001 certification and undergo complete quality control—from raw material selection to finished product inspection. The entire production process is traceable, and finished components are subjected to extreme performance tests to ensure consistent reliability and superior quality.
Specification
Materials | 65Mn, 60Si2Mn, 55CrMnA (SUP9), 50CrVA, 51CrV4, 52CrMoV4 | OEM/ODM | Acceptable |
Color | Red, black, grey , blue or as your requirement | Logo | Your logo can be customized |
Components | Leaf, Bushing, Clips/Clamps, Center bolt, nut, Rivet | Surface treatment | Shot Peening+ Electrophoresis + Painting |
Lead time | About 25-35 days | Warranty | 12 Months |
Company Profile
About us
Shandong Xiaocheng Auto Parts Co., Ltd. is a modern private enterprise dedicated to the design, development, and production of automotive leaf springs.
With more than 15 years of industry expertise, we operate two specialized production lines with an annual output of over 30,000 tons, focusing on continuous innovation and precision manufacturing in the field of suspension systems.
As a trusted and recognized domestic supplier, we maintain long-term partnerships with leading commercial vehicle manufacturers, including FAW Jiefang and Sinotruk, ensuring our products meet the stringent standards of OEM applications. All raw materials are sourced exclusively from top domestic steel mills such as Qingdao Special Steel and Fangda Special Steel, guaranteeing exceptional and stable material quality from the origin.
Our production process strictly follows OEM specifications and advanced metallurgical standards. The rapid oil quenching heat treatment ensures an optimized metallographic structure with excellent strength and toughness. Each leaf spring undergoes surface shot peening using state-of-the-art stress peening machines to effectively control residual stresses and extend fatigue life.
In addition, our electrophoretic coating technology provides superior corrosion protection—verified by salt spray test results of up to 400 hours—making the product resilient in harsh environments. Every leaf spring passes through stringent bench and road tests, guaranteeing durability and consistent performance under real-world operating conditions.
To better serve our global clientele, we offer customized solutions, including tailor-made designs based on customers' drawings and specific requirements, ensuring the perfect fit for various commercial and heavy-duty applications.
Certifications
Packaging & Shipping
FAQ
Q1: How do you guarantee product quality?
A1: We maintain complete inspection records throughout the entire production process — from raw materials to finished products. Each department takes full responsibility for ensuring the quality of the next process, forming a seamless quality control chain.
A1: We maintain complete inspection records throughout the entire production process — from raw materials to finished products. Each department takes full responsibility for ensuring the quality of the next process, forming a seamless quality control chain.
Q2: Are you a manufacturer?
A2: Yes. We are a professional manufacturer specializing in automotive leaf springs for over 15 years, with advanced production lines and strict quality management systems.
Q3: With so many leaf spring manufacturers out there, what are your advantages?
A3: We use high-quality raw materials sourced from Qingdao Special Steel, ensuring stable performance and durability.
Our precise and efficient heat treatment process guarantees excellent strength, toughness, and fatigue resistance.
We carry out comprehensive and rigorous testing procedures to ensure every leaf spring meets or exceeds international standards.
Q4: Do you test all your goods before delivery?
A4: Yes, we conduct 100% testing on all products before shipment to ensure quality and reliability.
Q5: How do you maintain a long-term and strong business relationship with customers?
A5: We consistently provide high-quality products at competitive prices to ensure mutual benefit.
We treat every customer as a long-term partner and friend, conducting business with sincerity and integrity, regardless of their location.
Q6: Can you produce according to samples?
A6: Yes. Our strong technical capability allows us to develop and manufacture leaf springs based on customer samples. We also ensure that customer drawings and interests are fully protected.
Q7: Do you have a minimum order quantity (MOQ)?
A7: The MOQ depends on the specific product and customer requirements and can be negotiated. Generally, larger order quantities offer more competitive unit prices.
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