Leaf Spring Specification:

1.Size: 90x16

2.Pieces: 9 pieces

3.Type: Conventional type

4.Weight: 86kg

Trailer Steel 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

Heavy Duty Trailer Steel Leaf Spring Pictures:

FAQ:

WHAT function do leaf springs serve?

Besides supporting the weight of a vehicle, the leaf springs control the ride height 

and keep the tires in contact with the road. Springs also affect alignment angles 

and are the most important components in controling the "feel" of a vehicles suspension system. 

WHAT is a multi-leaf spring?

Multi-leaf springs consist of more then one plate of spring steel. 

WHAT is spring rate and load rate?

Spring rate is the amount of force that is required to compress, extend, or 

twist a spring one inch. Usually spring rate is measured in pounds per inch. 

Load rate is a is the amount of weight the spring is designed to carry at a 

certain height.

Our leaf spring factory was found in 2002. We have 4 branch plants, 12 production lines and 1 

internation internation marketing cetenter with an annual 200,000

 tons. We have passed ISO/TS16949  certificate in 2006.

We engage in the production of all kinds of automobile leaf 

spring. From small pick-up vehicles to heavy duty 

trucks, from conventional to parabolic, from OEM to after-marekt. 

Thickness from 6mm to 50mm, Width from 44.5mm to 125mm. 

Popular material grade incleudes SUP7,SUP9,SUP11A.

Usually lead-time is with 1 ~ 2 weeks for common leaf spring; 4 ~ 5 weeks  for parabolic leaf spring.Meanwhile, we 

also supply flat bar for leaf spring and flat bar cutting service.

 Wondee autoparts show rooms:

Wondee autoparts show room 1 < trailer turntable, landing gear, brake drum, wheel rim, suspension, bolts, & other autoparts. >	Wondee autoparts show room 2 < all kinds of leaf springs -  mercedes benz, volvo, toyota, scania, bpw, scania, hino and so on. >

Export Manager: Sunny Yang                            Mobile: (+)86 138 6049 3379  

Tel: (+)86 592 5618 109                                   Mail: wondee@wondee.com

What'app: (+)86 138 6049 3379                        Http: www.wondeeauto.com