China Gold Supplier for Drop Leaf Springs - High quality china manufacturer SUP9 steel leaf spring for trailer 2728 – Jiachuang

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As a way to ideal meet up with client's desires, all of our operations are strictly performed in line with our motto "High Top quality, Competitive Cost, Fast Service" for Suspension Bushing , Small Square U Bolts , Bronze Bushings , Welcome to visit our company and factory. Please feel free to get in touch with us if you need any further assistance.
China Gold Supplier for Drop Leaf Springs - 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 .

tuzhi

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

1
2

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

material-cutting

1.Material Cutting

Edge-Cutting

4.Edge Cutting

Stress-Peening

7.Stress Peening

Punching

2.Punching

Quenching

5.Quenching

Assembling

8.Assembling

Eye-Rolling

3.Eye Rolling

Tempering

6.Tempering

Painting

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:

China Gold Supplier for Drop Leaf Springs - High quality china manufacturer SUP9 steel leaf spring for trailer 2728 – Jiachuang detail pictures

China Gold Supplier for Drop Leaf Springs - High quality china manufacturer SUP9 steel leaf spring for trailer 2728 – Jiachuang detail pictures


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Our intention is usually to satisfy our buyers by offering golden provider, great rate and good quality for China Gold Supplier for Drop Leaf Springs - High quality china manufacturer SUP9 steel leaf spring for trailer 2728 – Jiachuang, The product will supply to all over the world, such as: Bangladesh, Argentina, Sevilla, we are fully determined to control the whole supply chain so as to provide quality products at competitive price in a timely manner. We are keeping up with the advanced techniques, growing through creating more values for our clients and society.
  • We always believe that the details decides the company's product quality, in this respect, the company conform our requirements and the goods are meet our expectations.
    5 Stars By Irene from Melbourne - 2018.03.03 13:09
    As an international trading company, we have numerous partners, but about your company, I just want to say, you are really good, wide range, good quality, reasonable prices, warm and thoughtful service, advanced technology and equipment and workers have professional training, feedback and product update is timely, in short, this is a very pleasant cooperation, and we look forward to the next cooperation!
    5 Stars By mary rash from Bandung - 2017.12.31 14:53