Good Wholesale Vendors HD65 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:
carry on to further improve, to guarantee merchandise high-quality in line with market and buyer standard necessities. Our organization has a top quality assurance procedure have already been established for Good Wholesale Vendors HD65 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: San Francisco, Iraq, Armenia, We can meet the various needs of customers at home and abroad. We welcome new and old customers to come to consult & negotiate with us. Your satisfaction is our motivation! Allow us to work together to write a brilliant new chapter!
By Alex from Amsterdam - 2018.10.09 19:07
The customer service staff is very patient and has a positive and progressive attitude to our interest, so that we can have a comprehensive understanding of the product and finally we reached an agreement, thanks!
By Alex from Los Angeles - 2017.01.28 19:59