Suspension Leaf Spring Truck Trailer Rear Leaf Spring for Semi Trailer and Auto Spare Parts
A leaf spring is the most widely used elastic element in automobile suspensions.
It is an approximate equal strength steel beam composed of several alloy spring sheets of equal width and unequal length. Its main function is to transmit all forces and moments between wheels and frames, relax impactive load caused by the road surface and realize vehicle guidance, make vehicles normal drive.
Leaf springs are widely applied to suspensions for heavy duty trucks, light duty trucks, pick-ups, cars, skeletal trailers, lowbed trailers, flatbed trailers, oil tank trailers, van trailers, wood transport trailers, gooseneck trailers, agricultrucal vehicles, etc. 12
Our projndage advantage
01.No Rust problem + Perfect looking
Method:
>> Single leaf by electrophoretic painting(Optional)
>> Sembling spring by electrostatic painting(Optional)
Benefits for customers
>> Salt spray testing > 500 hours beat general industrial level 200 hours,avoid rust possiblity
>> Perfect-looking -- uniform painting, complete painting, no scratch
02. Pre shot-peening
Method:
>> Make shot peening under rated capacity
Benefits for customers
>> 180,000 times fatigue life beat general level 150,000 times;
>> bear heavier capacity and use longer time;
03. Pre-pressing and adjust
Method:
>> Make pre-pressing under rated capacity
>> Select camber by computer
Benefits for customers
>> Guarantee reasonable camber and keep smallest tolerance,
>> select out leaf spring whose camber is not qualified
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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. |
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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 |
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Spring width range (mm) |
44.5~125 mm |
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Spring thickness (mm) |
6~50 mm |
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Interchangeable brands (make) |
MERCEDES BENZ, BPW, , TOYOTA, HONDA, NISSAN, MAN, HOWO, , , DAF, MAN, , , SISU, HYUNDA, TATRA, MAZ, SAF, ROR, FRUEHAUF, HINO, YORK, FUWA, CIMC, ETC. |
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Colors |
Red, shinning black, dark black, grey, blue, as required. |
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Optional parts, components, & related parts |
Centor bolts, clamps, Copper bushes, bi-metal bushes, steel rubber bushings, rubber bushes, nylon bushes. U-bolts, brackets, pins. |
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Package |
Fumigated wooden pallets, steel pallets, as required. |
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Standards implemented |
IATF 16949-2016, ISO 9001-2015, GB/T 19844-2018, GT/T 1222-2007 |
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Payment terms |
TT, LC, DP. |
Our Products
Q: How do you guarantee quality?
A: We take quality inspect records from raw material to finished product.
The former department bear 100% responsibility for next process.
Q: Can you produce if we have samples only?
A: Our technical ability is strong enough to deal with different types of spring.
Sample drawing and customers' interests will be protected well.
Q: Is it possible to have sample for quality testing?
A: Same or similar sample are available for free.
Q: What is your MOQ?
A: For common material size, MOQ requires 30~50 pcs;
For special material size, Moq requires 3 ton or more;
Q: What is your terms of payment?
A: T/T, L/C, Western Union
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