15K Factory Supply Semi Trailer Leaf Spring for Heavy Duty Trucks

Product Description

15K Factory Supply Semi Trailer Leaf Spring Heavy Duty Trucks Leaf Spring Hot for Sales Leaf Spring for Truck
 

QC management system	Implementing IATF 16949-2016
Services quality management system	Implementing ISO 9001-2015
Product technical standards	Implementing GB/T 19844-2018, GT/T 1222-2007
Warranty	12 months since shipping date
Quality testing by	Stiffness Testing Machine, Arc Height Sorting Machine, and Fatigue Testing Machine, etc.
Raw material	Top 3 steel mills in China
Flat bar cutting & center hole punching	By fully automatic CNC cutting & punching production line Center hole positioning tolerance: <±0.2 mm Cutting length tolerance: <±2 mm
Leaf spring eye rolling	Use automatic CNC leaf eye rolling machines, robot assistance, dedicated molds   and toolings to guarantee below features: 1) Perpendicularity tolerance <1% x leaf width 2) Parallelism tolerance< 1% x leaf width 3) Eye diameter tolerance<±0.5 mm 4) Width tolerance of leaf end: -0.5mm ~ 0 mm
Leaf tapering/parabolic rolling	Use automatic CNC parabolic taper rolling machines, robot assistance, dedicated   molds and toolings to guarantee below features: 1) Taper thickness allowance: <±0.25mm 2) Width tolerance of leaf end: -0.5mm~0 mm
Heat treatment lines	1) Heating line: The large-scale automatic CNC temperature control heating furnace not only ensures the heating time but also ensures that the temperature in the furnace reaches the   design value (the temperature difference is within ±5 degrees), ensures that the leaf springs are heated evenly, and avoids excessively high or low temperatures, thereby ensuring the strength of the leaf springs and the service life limit meets the Crequirements. 2) Quenching & camber making line: Use special CNC quenching equipment, mechanical oil, camber making machines and robot assistance to ensure that the quenching temperature, quenching time and cambers reach the design requirements. 3) Tempering line: A dedicated CNC tempering production lines are used to ensure that the tempering temperature and the tempering time meet the design requirements.  So as to ensure the strength and service life of leaf springs.
Camber tolearance (mm)	≤±6 (Exceed spring industry standard ±7)
Fatigue life (cycles)	>120,000+( Exceed spring industry standard 100,000 cycles)
Hardness	41HRC~48HRC
Shot peening	Using special leaf spring shot blasting machines, the new and used steel shots are   mixed for use. On the one hand, the new steel shots increase the deformation of the springs. On the other hand, the used steel shots have no edges and corners to avoid microcracks on the surface of the springs, thereby increasing the fatigue life.
Painting	Normal painting and E-coating are available. *E-coating finish line: paint film is uniform and plump, with strong adhesion and high anti-corrosion performance, to avoid dripping, flow marks, stagnation marks and other problems. * Salt spray test >100 hours
Marks/stickers	* Clients' logo are supported  * Design marks or stickers for clients, free of charge
Other inspection equipment	*Metallographic Microscope, *Spectrophotometer *Carbon Furnace *Carbon & Sulfur Combined Analyzer, and  *Hardness Tester, etc.
Oversea sales volume (tons)	16000+
Overseas market	30+ countries ( German, France, Poland, Portugal, Russia, Filand, USA, Canada, Mexico, Thailand, Vietnam, Malaysia, Singapore, The Philippines, Indonesia, Brazil, Bolivia, Argentina, Ecualor, Chile, Peru, Guatemala, Panama, Egypt, South Africa, Nigeria, Tanzania, etc)
Clients (overseas)	99+
Land area (square meters)	60,000+
Tons of annual output	55,000+
Number of equipments (sets)	400+
Number of employees	590+
Number of engineers	70+
Available certificates	COC, PVOC, CIQ, SONCAP, BV, C/O, FORM E, FORM A.

Comprehensive Info of  Leaf Spring:

Leaf spring types	Conventional leaf springs, parabolic leaf springs, Z type air linkers, TRA leaf springs, trailer leaf springs, boat trailer springs, pickup leaf springs, semi trailer springs, truck springs, farming/agricultural trailer springs, sprung drawbar, bus springs,   bogie/boogie springs, heavy truck springs, light duty trailer springs/small springs, etc.
Materials grade:	SUP7, SUP9, SUP9A, SUP10, SUP11, SUP11A and SUP12 60Si2Mn, 55CrMnA, 60CrMnBA, 50CrVA, 60CrMnBA, 60Si2CrA 61SiCr7, 55Cr3, 60CrB3, 51CrV4 9260, 5155, 5160, 6150, 51B60, 9254
Spring width range (mm)	44.5~125 mm
Spring thickness (mm)	6~50 mm
Colors	Red, shinning black, dark black, grey, blue, as required.
Optional parts, components, & related parts	Centor bolts, clamps,  Copper bushes, bi-metal bushes, steel rubber bushings, rubber bushes, nylon bushes.  U-bolts, brackets, pins.
Package	Fumigated wooden pallets, steel pallets, as required.
Standards implemented	IATF 16949-2016, ISO 9001-2015, GB/T 19844-2018, GT/T 1222-2007
Payment terms	TT, LC,Western Union.
Lead time	About 25~35 working days.
MOQ	60 pcs

FAQ

1. who are we?
We are based in Shandong, China, start from 2021,sell to North America(10.00%),South America(10.00%),Southeast
Asia(10.00%),Africa(10.00%),Mid East(10.00%),Eastern Asia(10.00%),Central America(10.00%),Northern Europe(10.00%),South
Asia(10.00%),Domestic Market(10.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
semi trailer axles,  air suspensions , chamber,wheel ,slack adjuster and other related items.
4. why should you buy from us not from other suppliers?
We have a trailer parts production more than ten years the supply chain
5. what services can we provide?
Accepted Delivery Terms: FOB,CIF,EXW;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T;
Language Spoken:English,Chinese
6.what is the certificate
At present, the company can undertake CCS, ABS, BV, GL and other certification products