Low MOQ for Super Leaf Springs - High quality china manufacturer SUP9 steel leaf spring for trailer – Jiachuang

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  • Low MOQ for Super Leaf Springs - High quality china manufacturer SUP9 steel leaf spring for trailer – Jiachuang
  • Low MOQ for Super Leaf Springs - High quality china manufacturer SUP9 steel leaf spring for trailer – Jiachuang

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We've one of the most advanced generation tools, experienced and qualified engineers and workers, recognized good quality manage systems and a friendly skilled product sales workforce pre/after-sales support for Square U Bolt , U Bolt Heavy Duty , VOLVO FH12 Leaf Spring , The continual availability of high grade products in combination with our excellent pre- and after-sales service ensures strong competitiveness in an increasingly globalized market.
Low MOQ for Super Leaf Springs - High quality china manufacturer SUP9 steel leaf spring for trailer – 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 1133 mm (Free Length Measurement), A side Free Arch Measurement 124mm，Tolerance range +6mm ,B side Free Arch Measurement 105mm,Tolerance range +6mm, Middle straight 203mm .

All datas are obtained by measuring the new produce product .

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Parabolic Semi-trailer TRA2727 Leaf Spring Characteristics

1. The TRA2727 LEAF SPRING acts as a linkage for holding the axle in position and thus separate linkages are not necessary. It makes the construction of the suspension simple and strong.

2. Because the positioning of the axle is carried out by the leaf springs, it is disadvantageous to use soft springs i.e. springs with low spring constant.

3. Therefore, this type of suspension does not provide good riding comfort. The inter-leaf friction between the leaf springs affects the riding comfort.

4. Acceleration and braking torque cause wind-up and vibration. Also wind-up causes rear-end squat and nose-diving.

5. The inter-leaf friction damps the spring’s motion and reduces rebound, which until shock absorbers were widely adopted was a great advantage over helical springs.

TRA2727 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

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:

Low MOQ for Super Leaf Springs - High quality china manufacturer SUP9 steel leaf spring for trailer – Jiachuang detail pictures

Low MOQ for Super Leaf Springs - High quality china manufacturer SUP9 steel leaf spring for trailer – Jiachuang detail pictures

Related Product Guide:
"Quality very first, Honesty as base, Sincere assistance and mutual profit" is our idea, in an effort to create consistently and pursue the excellence for Low MOQ for Super Leaf Springs - High quality china manufacturer SUP9 steel leaf spring for trailer – Jiachuang, The product will supply to all over the world, such as: Honduras, Manila, Australia, As an experienced group we also accept customized order and make it same as your picture or sample specifying specification and customer design packing. The main goal of our company is to build up a satisfactory memory to all customers, and establish a long term win-win business relationship. Choose us, we always wait for your appearance!
    • The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
    5 Stars By Hellyngton Sato from Afghanistan - 2017.09.16 13:44
    The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.
    5 Stars By Priscilla from Brazil - 2018.09.16 11:31

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