OEM/ODM Supplier High Quality Leaf Spring - High quality china manufacturer SUP9 steel leaf spring for trailer 2728 – Jiachuang Detail:
This spring assy are widely used in American for trailer .
Spring Measurements Specs
Totally 3 blades , 3pcs middle pads , End to End Measurement 1124 mm (Free Length Measurement), A side Free Arch Measurement 97mm,Tolerance range ±3mm ,B side Free Arch Measurement 89mm,Tolerance range ±3mm, Middle straight 203mm .
All datas are obtained by measuring the new produce product .
NO.Leaf |
W&T(mm) |
Length(mm) |
Per Weight(kg) |
Assy Weight(kg) |
1 |
76*20 |
578+546 |
12.35 |
26 |
2 |
76*20 |
383+383 |
8.28 |
|
3 |
76*20 |
235+235 |
4.84 |
TRA2728 Leaf Spring Detail Photos
Key Points Keep The High Quality
1) Raw matrail . |
Thickness less than 20mm. we choose SUP9/55Cr3/SAE5160H as the product material |
Thickness from 20-30mm. wE choose SUP11A/50CrVA |
Thickness more than 30mm. We choose 51CrV4 as the raw material |
Thickness more than 50mm. We choose 52CrMoV4 as the raw material |
2) Quchenging Process |
We strickly controled the steel temeprure around 800 degree. |
we swing the spring in the qenching oil among 10 seconds according to the spring thickness. |
3)Shot Peening. |
Each assmembing spring set under stress peening . |
Fatigue test can reach over 150000 cycus |
4) Painting |
Each leaf under cataphoresis painting. |
Salt spray testing reach 500hours |
Production Process
1.Material Cutting
4.Edge Cutting
7.Stress Peening
2.Punching
5.Quenching
8.Assembling
3.Eye Rolling
6.Tempering
9.Painting
FAQ
Q1: What type of leaf spring could you produce ?
A: We can produce most kinds of springs in the market. especially on the parabolic springs.
Q2: What material could you supply for leaf spring?
A: Our material grade should be SUP9/SUP9A /SUP11A/51CrV4 /52CrMoV4/ even 55Cr3 and SAE5160H as well .
Q3: How long will be your delivery time?
A: 20-40days. If material stock enough around 20days. if not,would be 40days
Q4: What payment terms are acceptable?
A: TT and LC at sight
Q5: What is the packing?
A: No fumigation wooden pallet . we also can pack according to whatever you request if reasonable.
Q6:How about the surface finishing ?
A : electrophoresis coating (black,red,gray,or as customer’s requests )
Product detail pictures:
Related Product Guide:
We take pleasure in an extremely fantastic standing among the our prospects for our great product top quality, competitive cost and the finest support for OEM/ODM Supplier High Quality Leaf Spring - High quality china manufacturer SUP9 steel leaf spring for trailer 2728 – Jiachuang, The product will supply to all over the world, such as: Algeria, Mecca, Boston, We have a good reputation for stable quality products, well received by customers at home and abroad. Our company would be guided by the idea of "Standing in Domestic Markets, Walking into International Markets". We sincerely hope that we could do business with customers both at home and abroad. We expect sincere cooperation and common development!
By Frederica from Bogota - 2017.08.16 13:39
The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!
By Sophia from Saudi Arabia - 2017.09.30 16:36