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Chang Tong Technology Co., Ltd(Henan, China)

 
 
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Leaf Spring 

  Category : Machinery on-line->Hardware & Hand tool->Others->spring leaf

     
Leaf Spring
 
 
       

  Product Specification
 
  Model No:      Parabolic Leaf Spring
  Country  CN
  Brand  Chang Tong
  Materials  60Si2Mn, 55CrMnA,50CrVA
  Size  Many    
  Weight  9~25 Per Piece
  Color  Shining Black, Black, Red, Grey
  Packing  Wooden Case or Pallet or As Your Requirment
  Minimum Order  5 tons
  Payment Term  L/C, T/T, Western Union
  Port  Qingdao, Tianjin, Lianyungang, Dalian
  OEM  Acceptable
  Car Make  Truck, Trailer, Semi-trailer, Light Truck, Bus, Car, or other Vehicles.

 

    Product Detail
  Chang Tong Technology Co., Ltd is one of the most professional leaf spring manufacturers in China.
After ten years' development , Chang Tong has been a company with reaserch, development, production and service professional leaf spring supplier.
We are engaged in producing different kinds of leaf springs such as conventional leaf spring, suspension spring, parabolic spring and so on. And they can be widely used in trucks, buses, trailers, vans and other vehicles.

1) Material: 60Si2Mn, 55CrMnA, 50CrVA
Available steel material

Below is the main material for our truck trailer leaf springs, If you can't find the material you want, just contact us for further suggestion.

Common standard Japanese standard Other standard
60Si2Mn or sup6 60Si7
55CrMnA or sup9 55Cr3
60CrMnA sup9A 50CrVA
51CrV4 or sup10
60CrMnMoA or sup13 51CrMoV4

2) Length: 700mm~2000mm

3) Width: 60mm~120mm

4) Thickness: 7mm~40mm

5) Color: Shining Black, Black, Grey, Red

6) Components: Leaf, Clip, Center Bolt

7) Quality Level: Excellent Quality for International Market, Made in China, Chang Tong brand

8) Application: Truck, Trailer, Bus or Other Vehicles

9) Main Product Lines:
Light Vehicle Series Leaf Spring
Steering Arm Series
Mineral Truck Leaf Spring
Bus Leaf Spring
Leaf Spring for Heavy Duty Truck
Trailer Leaf Spring



10) Certificate: ISO/TS 16949

11) Inspection: Factory in-house self check or Third Party inspection upon your requests





Advantages

1) Advanced equipment both for production and detection, professional leaf spring supplier.

2) Independent research system, full kinds of leaf spring type.

3) Chang Tong has advanced technology, are able to independent design, make, test all kinds of leaf spring.

4) Passed ISO/TS 16949 global quality certificate, and has an AAA bank credit rank.

5) We can produce according to your drawings or samples, customize is acceptable.

6) Honors like" China Association of Automobile Suspension Spring Unit", " Provincial Faithful Enterprise", "Top 100 Private Enterprise of Henan", " AAA Credit Enterprise of China" etc.

7) Chang Tong has legal import-export operation rights, and products are famous in both China and oversea.


Manufacturing Process



Leaf Spring Manufacturing process

Multi-leaf springs are made as follows:

1.Shearing of flat bar

2.Center hole punching / Drilling

3.End Heating process
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

(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

Service Commitent

1. You can return the goods to us, if the products have any quality problems.

2. Our buyers can enjoy our bottom price, free technology service all round the year, free souvenirs and so on.

3.The bulk buyers and OEM customers can enjoy transport priority and we'll arrange consignment agents for you.

4. Reply your enquiry in 24 working hours.

5. Customized design is available. OEM & ODM are welcome.

6. Exclusive and unique solution can be provided to our customer by our well-trained and professional engineers and staffs.

7. Our service tenent: To Achieve our customers the higest expectations, to achieve customers satisfaction.

   


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