Good Quality Tandem Axle Leaf Springs - China Manufacturer supply TRA-699 leaf spring for trailer – Jiachuang

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  • Good Quality Tandem Axle Leaf Springs - China Manufacturer supply TRA-699 leaf spring for trailer – Jiachuang
  • Good Quality Tandem Axle Leaf Springs - China Manufacturer supply TRA-699 leaf spring for trailer – Jiachuang

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"Sincerity, Innovation, Rigorousness, and Efficiency" may be the persistent conception of our organization to the long-term to build together with shoppers for mutual reciprocity and mutual advantage for Auto Leaf Spring , Grade 10.9 U Bolt , U Bolts For Lifted Trucks , How about to start your good organization with our corporation? We are all set, properly trained and fulfilled with pride. Let’s start our new business enterprise with new wave.
Good Quality Tandem Axle Leaf Springs - China Manufacturer supply TRA-699 leaf spring for trailer – Jiachuang Detail:

This spring assy are widely used in American for trailer .

Spring Measurements Specs

Totally 4 blades , End to End Measurement 1110 mm (Free Length Measurement), Free Arch Measurement (see picture) 105mm,Tolerance range within ±3mm . Middle straight 203mm,4pcs middle pads 200*71*1*12.5(mm).

All datas are obtained by measuring the new produce product .

tuzhi

Semi-Trailer Tra699 Leaf Spring Are Made As Follows

Multi-leaf springs are made as follows:

1.   Shearing of flatbar

2.   Center holepunching / Drilling

3.   End Heatingprocess forming (hot & cold process)

1.  Eye Forming /Wrapper Forming

2.  Diamond cutting/ end trimming / width cutting / end tapering

3.  End punching /end grooving / end bending / end forging / eye grinding / end rolling

4.  Center holepunching / Drilling / nibbing

4.   Heat Treatment

1.  Heating

2.  Hardening

3.  Cambering

4.  Quenching

5.  Tempering

5.   Surfacepreparation

1.  Shot peening /stress peening

2.  Primary painting

6.   Eye bushpreparation process

1.  Eye reaming /eye boring

2.  Bush insertion

3.  Bush reaming

7.   Assemble

1.  Presetting &load testing

2.  Finish painting

3.  Marking &packing

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:

Good Quality Tandem Axle Leaf Springs - China Manufacturer supply TRA-699 leaf spring for trailer – Jiachuang detail pictures

Good Quality Tandem Axle Leaf Springs - China Manufacturer supply TRA-699 leaf spring for trailer – Jiachuang detail pictures

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Sticking for the belief of "Creating items of top of the range and creating buddies with people today from all over the world", we normally put the interest of shoppers in the first place for Good Quality Tandem Axle Leaf Springs - China Manufacturer supply TRA-699 leaf spring for trailer – Jiachuang, The product will supply to all over the world, such as: luzern, Russia, Greece, We seriously promise that we provide all the customers with the best quality products, the most competitive prices and the most prompt delivery. We hope to win a resplendent future for customers and ourselves.
    • We have been looking for a professional and responsible supplier, and now we find it.
    5 Stars By jari dedenroth from Bangladesh - 2018.06.21 17:11
    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 Griselda from Canada - 2018.07.26 16:51

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