Name: parabolic and conventional semi trailer leaf spring/suspenstion
Brand: Changzai
Availability: InStock

Product Details

parabolic and conventional semi trailer leaf spring/suspenstion

We are a big and professional manufacturer and we supply almost all semi-trailer parts.

Our advantages

1.Our own factory, reasonable price, Fast delivery

2.Small axle order quantity can be accepted

3.Professional service from order to shipping

4.OEM service and packaging designed service

5.Optional suspension sizes are available

leaf spring main dimensions:

1.Types:Conventional / Parabolic / Z Type Leaf Spring

2. Width :75mm,100mm,120mm

3.Thickness:12mm,16mm

4.Size: By OEM no. or Customized. All sizes are available

5.OEM no: TRA, UPCO, UNA...

6.Thickness: 6mm~50mm

7.High quality, Competitive price, Fast delivery

leaf spring specifications:

1. Components:Leaf,clip,center bolt

2. Color :Red,shinning black,dark black,grey,blue

3. Materials:SUP7, SUP9, and 60Si2Mn are available.

4. Quality level: Excellent quality for international market, made in China

5. Certificate:ISO9001; TS16949; COC; PVOC; CIQ; SONCAP; BV; C/O; FORM E.

6. Truck,trailer,bus suitable:SCANIA,MAN,VOLVO,TOYOTA,BPW,RANDON,UAZ ,MERCEDES- BENZ,DAF,IVECO,HOWO,CIMC

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

If you have any requirement,please tell us,we can produce according to drawings of customers.

Liangshan Changzai Machinery Manufacturing Co., Ltd. is located in Liangshan county, which is Chinese trailer(special use vehicle)production base. We are the factory professional design and manufacture the semi-trailer parts, including Axle series, Suspension System series, Leaf Spring Series, Landing Gear series, King Pin series, Fifth Wheel series, Air Brake Chamber series, Twist lock, etc.

Based o the concept of “customer needs is our eternal goal”, we have designed and developed hundreds series of new products in these years, We utilize the advanced technology to ensure cost efficiency for our customers and assist customers to develop products that are responsive to market demands. We have advanced production equipment, professional research and development team. Products are strict in accordance with the ISO9001 international quality system certification standards.

Our products pictutes

other product pictures

Packing & Shipping

If you are intrested in any kind of our products or have any question,

don't hesitate to contact me by informations below:

Liangshan Changzai Machinery Manufacturing Co.,Ltd.

Tel:86-532-68979951

Skype:susan.yxl

Trademanager:cn1512213712

QQ:3254679798