Excellent quality Volkswagen Leaf Spring - High quality china manufacturer T410012 Trailer leaf spring – Jiachuang

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Our commission is to serve our buyers and purchasers with most effective good quality and aggressive portable digital goods for Trailer Leaf Spring Bushings , ISUZU NPR/700P Leaf Spring , Composite Bushing , With the tenet of "faith-based, customer first", we welcome clients to call or e-mail us for cooperation.
Excellent quality Volkswagen Leaf Spring - High quality china manufacturer T410012 Trailer leaf spring – Jiachuang Detail:

This spring assy are widely used in Thailand for trailer suspension parts .

Spring Measurements Specs

Totally 11 blades ,1-11 blade Width(mm)*Thickness(mm): 100*12, End to End Measurement 1100 mm (Arc Length Measurement),Tolerance range within ±3mm . Camber Height Measurement (see picture) 115mm,Tolerance range within ±5 mm .

All datas are obtained by measuring the new produce product .

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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

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:

Excellent quality Volkswagen Leaf Spring - High quality china manufacturer T410012 Trailer leaf spring  – Jiachuang detail pictures


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We attempt for excellence, support the customers", hopes to become the top cooperation team and dominator enterprise for staff, suppliers and shoppers, realizes worth share and continual marketing for Excellent quality Volkswagen Leaf Spring - High quality china manufacturer T410012 Trailer leaf spring – Jiachuang, The product will supply to all over the world, such as: Haiti, Dubai, Indonesia, The credibility is the priority, and the service is the vitality. We promise we have the ability to provide excellent quality and reasonable price products for customers. With us, your safety is guaranteed.
  • This is a very professional wholesaler, we always come to their company for procurement, good quality and cheap.
    5 Stars By Penelope from The Swiss - 2018.07.26 16:51
    Staff is skilled, well-equipped, process is specification, products meet the requirements and delivery is guaranteed, a best partner!
    5 Stars By Charlotte from British - 2017.11.11 11:41