Factory Price Single Leaf Spring Front Suspension - Hot selling 11436 trailer suspension part leaf spring – Jiachuang Detail:
This spring assy are widely used in Thailand for trailer suspension parts .
Spring Measurements Specs
Totally 9 blades ,1-9 blade Width(mm)*Thickness(mm): 76*14, End to End Measurement 1210 mm (Free Length Measurement),Tolerance range within ±3mm . Free Arch Measurement (see picture) 110mm,Tolerance range within ±5 mm . hook on left of the 3rd blade .
All datas are obtained by measuring the new produce product .
Trailer Leaf Spring Process
Multi-leaf springs are made as follows:
1.Shearing of flat bar
2.Center hole punching / Drilling
3.End Heating process
(1).Eye Forming / Wrapper Forming forming (hot & cold process)
(2).Diamond cutting / end trimming / width cutting / end tapering
(3).End punching / end grooving / end bending / end forging / eye grinding
(4).Center hole punching / Drilling / nibbing
4.Heat Treatment
(1).Heating
(2).Camber forming
(3).Quenching
(4).Tempering
5.Surface preparation
(1).Shot peening / stress peening
(2).Painting
6.Eye bush preparation process
(1).Eye reaming / eye boring
(2).Bush insertion
(3).Bush reaming
7.Assemble
(1).Presetting & load testing
(2).Paint touch-up
(3).Marking & packing
Finished Products and Pack 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 believe that prolonged expression partnership is really a result of top of the range, value added support, rich encounter and personal contact for Factory Price Single Leaf Spring Front Suspension - Hot selling 11436 trailer suspension part leaf spring – Jiachuang, The product will supply to all over the world, such as: Croatia, New York, Riyadh, You can always find the products you need in our company! Welcome to inquire us about our product and anything we know and we can help in auto spare parts. We are looking forward to work with you for a win-win situation.
By Deirdre from Rome - 2017.09.26 12:12
Products and services are very good, our leader is very satisfied with this procurement, it is better than we expected,
By Dorothy from Oman - 2018.05.13 17:00