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Xiaocheng leaf springs Specification:
1.Leaf spring raw material source: Our spring flat bar is from the top 1 steel material supplier in China.
2. The optimized and precisely controlled heat treatment process is designed to enhance the strength, toughness, and fatigue life of leaf springs.
3.Color: Red, shinning black, dark black, grey, blue leaf spring.
4.Materials: 60Si2Mn, 55CrMn, 50CrVA, SUP6, SUP7,SUP9,SUP9A,SUP10,SUP11 and SUP11A are available.
5.Suitable for Truck, trailer and bus leaf springs: SCANIA,MAN,VOLVO,TOYOTA,BPW,RANDON,UAZ,MERCEDES-BENZ,DAF,IVECO,HOWO,CIMC
6.Our products are popular in the worldwide market, including North American, South American, European, African, Asia, etc.
| Delivery time | 7-15 Working days | Payment | T/T, L/C |
| Certificate | CE,ISO | HS Code | 7320102000 |
| Origin | Shandong, China | Transport Package | Pallet |
| Material | 65Mn, 60Si2Mn, SUP9, 50CrVA, 51CrV4 | Type | Truck Leaf Spring |
Shandong Xiaocheng Auto Parts Co., Ltd. is a modern private enterprise specializing in the design, development, and production of automotive leaf springs. With over 15 years of industry experience, the company operates two dedicated leaf spring production lines with an annual output exceeding 30,000 tons.
As a trusted domestic supplier, we maintain close collaborative partnerships with leading manufacturers such as FAW Jiefang and Sinotruk. To ensure top-grade material quality, we source raw materials from renowned steel mills including Jiangyin Xingcheng, Qingdao Special Steel, and Fangda Special Steel.
Our manufacturing process strictly adheres to original equipment standards. We employ rapid quenching oil heat treatment to achieve optimal metallographic structure, and utilize stress shot peening machines for surface treatment to ensure durable residual stress control. Additionally, our electrophoretic spray painting process provides exceptional corrosion resistance, with salt spray test results exceeding 400 hours.
All products undergo rigorous bench and road tests to guarantee performance and reliability. We also offer customized solutions based on client drawings and specific requirements, delivering leaf springs that combine strength, safety, and longevity.
Main Products:
Single Point Trailer, RV, tractor-trailer, Light Trailer,Faw Jiefang J5, J6 dump truck, tractor full series, J7 tractor series and other leaf springs Heavy auto Haowo, T7H, T5H, Shande heavy truck and other dump truck full series leaf springs, Auman, Dongfeng, Shaanxi auto series leaf springs, trailer series leaf springs.
How do we guarantee quality?
Firstly, We ensure quality from the source
Our spring flat bar is from the top 1 steel material supplier in China.
Secondly, Advanced Heat Treatment Technology
We have been deeply engaged in the leaf spring industry for many years, accumulating extensive experience and building a professional team of highly skilled and seasoned engineers. In the field of heat treatment, we possess not only advanced technology but also rich practical experience, enabling us to strictly control every production process. This ensures the superior quality and reliable performance of our leaf springs, providing customers with products and services they can trust.
The heat treatment process of leaf springs is a critical step to enhance their strength, toughness, and fatigue life. It typically includes three main procedures: heating, quenching, and tempering.
First, the leaf spring is heated to a specific austenitizing temperature (usually between 850°C and 950°C) to transform the internal structure of the steel into a uniform austenite structure.
Next, rapid cooling (quenching) is performed, usually using oil or water as the cooling medium, to form a high-hardness martensite structure.
Finally, tempering is carried out by heating the leaf spring to an appropriate temperature (such as 400°C-600°C) and holding it for a certain period, which helps relieve internal stress while improving toughness and fatigue resistance.
Through a scientifically designed and well-executed heat treatment process, the leaf spring can achieve high strength while maintaining excellent elasticity and durability, meeting the demands of vehicles under complex working conditions.
Thirdly: Strict Quality Inspection
We adopt comprehensive and rigorous testing processes to ensure that the quality and performance of the leaf springs meet the standards.
Our products have passed ISO9001 international quality standard certification. We implement all-round quality control from raw materials to finished products. The quality inspection system tracks the whole process and matches the finished product extreme performance test to fully ensure product quality.
High quality has always been our core principle, so you can rest assured about the quality of our products. We are committed to providing every customer with reliable, durable, and top-standard products, laying the foundation for a long-term and stable partnership with you.
If you have any questions about leaf springs or are interested in a specific type of leaf spring, please feel free to contact me.
Best regards,
Tracy
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