custom high quality stainless steel parabolic trailer leaf spring

1.More than 10 years experience in semi trailer production.

2.Reliable quality.

3.Perfect pre-sale and after - sale service.

4.Accept customized products.

Single piece leaf spring hardness need to be HB378-445 after heat treatment;

Overheating, overburning, cracking, folding, bruising and other defects are not allowed on surface;
Each sinlgle leaf spring need to do stress shot peening treatmnet;
After the spring assembling, the center bolt must be punched and riveted;
Bolt mechanical performance level: 8.8-GB3098.1-2000;
The surface defects of bolts shall be implemented according to GB5779.1-2000;
Tolerance of bolts is according to GB3103.1-1982 Grade B product ;
The spring assembly is painted with black paint or as requested, according to QC / T484-TQ9;
Other technical requirements shall be implemented according to GB / 19844-2005.

trailer leaf spring
we can supply variuos range of multi-leaf spring, parabolic leaf spring and Z-type leaf spring with high quality &best price .
used in heavy duty trailers and trucks
international standard specification
strict quality control system

Thickness : From 6 mm to 50 mm
Width: From 45mm to 152mm
Color: shinning black,dark black,grey,blue follow your requirement
Materials: SUP7, SUP9, SUP9A, SUP10, SUP11, SUP11A, 60Si2Mn, 55CrMnA and 50CrVA are available
Certificate: TS16949;ISO9001; GB/T 19001-2008
Lead time: within 30-45days after receiving orders

R&D CAPABILITIES
* Experienced R & D engineers
* Ability to do OEM customized designs
* Patents and copyrights on original inventions
* Comprehensive design capabilities covering mechanics, electricity, and industrial outlook
* Experienced in world popular CAD software Trial-production Workshop for Producing
* Prototype Sample, Tooling and Fixtures
* Patents and copyrights on original inventions
MANUFACTURING CAPABILITIES
* Continuous improvement on lean production management
* Automatic assembly lines specially in jacks etc towing accessories' assembly
* 5S site management standard
* Comprehensive automatic equipment covering machining, welding, powder coating, plastic injection and assembly.
QUALITY CONTROL
* Using IS09001 standards,SAE tests are conducted in-house and by third-party labs in the USA.
* US$2,000,000 Product Liability Insurance Certificates for Quality, Safety and Environment

We are specialized in the production of American suspension and German suspension and axle, at the same time, in order to provide more products and better service to our customers and friends, my company specially established a new trading company, The name of the new company is CANGZHOU SAIXIN TRADING CO., which belongs to HEBEI JIAJILI AUTO PARTS CO., with the exception of American suspension and German suspension of the emergency axle, Other products will be sold through CANGZHOU SAIXIN TRADING CO.,LTD

We have high - quality professional products, as well as advanced product lines and equipments. All of the products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.Along the increasing market demands, we continuously satisfy customers by updating products to improve prouduction systems, improve quality.

Every company deeply understand that quality is the basic weapon for an enterprise to win. Quality is one of the factor that helped the business to achieve success, so we strive to provide qualitative business.

We are looking forward to establishing long-term cooperation with more friends, HEBEI JIAJILI AUTO PARTS CO.,LTD and CANGZHOU SAIXIN TRADING CO.,LTD looking forward to working with you