Mailbill@everlastingparts.com
Phone+8615165254768
enLanguage
Home / Products / Leaf Spring

Leaf Spring

Your Professional Leaf Spring Manufacturer!

 

Qingdao Everlasting Auto Parts Co., Ltd. was established in 2018, covering an area of 10,000 square meters and employing 100 people, including 20 engineers. We are a direct manufacturer of suspension leaf springs, guide arms, coil springs and stabilizer bars.

 
First 12 Last 1/2

 

 
Why Choose Us

Sales Market:
We provide leaf spring products to well-known OEM truck manufacturers such as SINOTRUK and T-KING. Our products have been successfully exported to many countries and regions such as the United States, Russia, South Korea, Vietnam and the United Arab Emirates.

Production Capacity:

Our annual output of leaf springs is 30,000 tons, coil springs is 200,000 pieces, and stabilizer bars is 100,000 pieces.

OEM Service:

We can customize leaf springs, coil springs and stabilizer bar kits according to drawings or samples provided by customers.

Quality Assurance:

We promise to provide a 12-month quality assurance service for the products we provide.

 

Custom Leaf Springs Suitable for BENZ TRUCK 9443200102 CH 3 Leaves

 

Custom Leaf Springs

We offer custom leaf spring manufacturing solutions to meet your needs. Key customizable options:
● Material selection
● Thickness
● Width
● Length
● Surface treatment

 

Leaf Springs Specification

 

 

Width

1-3/4"

Gauge

7/32"

No. Leaves

6

Inter-leaving

(None)

Distance between eyes:

Free: 41-3/16"

Laden, at load of 450 lbs. 42-1/2"

Dia. spring eyes or bushing

.860"/.865"

Average load rate

125 Lbs/Ins.

Working load

450 lb. at 3.6 ins. deflection

 

Our Best-Selling Leaf Spring

Our Company Has More Products to Offer, Please Browse the Product Categories on the Website, If You Have Any Needs, Please Contact Us. 

 

Truck Leaf Springs Suitable for VOLVO TRUCK 257931
Our Truck Leaf Springs Suitable for VOLVO TRUCK 257931 is one of our top-selling products. Made from superior-grade raw materials, our leaf springs offer remarkable strength, durability, and longevity.

 

Heavy Truck Steel Suitable for Benz ACTROS 9443200102 SH 3 Leaves
Our product, the Heavy Truck Steel Suitable for Benz ACTROS 9443200102 SH 3 Leaves, is a high-quality replacement for your truck's original suspension steel. Our Heavy Truck Steel is made with only the finest materials that can withstand intense pressure and heavy use. It is a perfect fit for your Benz ACTROS truck, which requires a reliable and robust suspension system to endure harsh conditions on the road.

 

Truck Leaf Springs Suitable for BENZ TRUCK 9483200907 1560MM 4 Leaves
Truck Leaf Springs Suitable for BENZ TRUCK 9483200907 1560MM 4 Leaves is a high-quality product manufactured by our company in China. We are a leading manufacturer and supplier of premium quality auto parts and accessories in China, and our Truck Leaf Springs Suitable for BENZ TRUCK 9483200907 1560MM 4 Leaves is one of our best-selling products.

 

Truck Leaf Springs Suitable for BENZ TRUCK 9483200905 1680MM 4 Leaves
Our Truck Leaf Springs Suitable for BENZ TRUCK 9483200905 1680MM 4 Leaves are made with high-quality steel that is durable, corrosion-resistant, and can withstand heavy loads. Additionally, the steel has been tempered to provide the required resilience and flexibility.

 

 

Leaf Spring Structure

 

 

productcate-1032-408

 productcate-1026-504

Leaf Springs Height Dimensions

 

 

There is a difference in measurement between the terms "spring arch" and "spring camber". Both are a height measurement, and both are referenced from the center mounting surface. Arch is measured to the center of the end mounting eyes. Camber is measured to the top of the main leaf immediately below the center of the end eyes.

 

productcate-696-244

 

Free Camber = 3.60" (factory specification)
Spring eye = 1-1/4" diameter (0.625"- radius).
Leaf thickness = 7/32"
Number of functional leaves = 6

 

productcate-688-123

0.22 = Thickness of top loop
1.25 = Eye inside diameter
3.60 = Free camber
1.31 = Spring thickness (7/32 x 6 leaves)
0.22 = Bottom plate (short, flat, non-functional)
6.60 = Total spring height, not including center bolt

 

 

Leaf Spring Material Selection and Properties

The material used for leaf springs is one of the most important factors that determine their quality and performance. The material should have high strength, toughness, fatigue resistance, corrosion resistance, and wear resistance. The most common materials used for leaf springs are spring steels, such as carbon steel, alloy steel, stainless steel, or composite materials.
They specify the chemical composition, mechanical properties, heat treatment, surface condition, and quality control methods for the materials used for leaf springs.

Truck Leaf Springs Suitable for BENZ TRUCK 313370

 

Leaf Spring Production Process
 

Traditional Hot Forming

Hot forming is the traditional method of manufacturing steel leaf springs. It involves heating the steel to a high temperature (usually above 800°C) and then shaping it into the desired form using dies, hammers, presses, or rollers. The hot-forming process consists of three main stages:
● Heating: The steel is heated in a furnace or an induction coil until it reaches its austenitizing temperature, which is the temperature at which the steel transforms into a single-phase structure called austenite. This makes the steel more ductile and malleable, allowing it to be easily shaped.
● Shaping: The heated steel is transferred to a forming machine, where it is shaped into the desired form using dies, hammers, presses, or rollers. The shaping process can be done in one or more steps, depending on the complexity of the design. The shaping process also determines the curvature and thickness of the leaf spring.
● Cooling: The shaped steel is cooled down rapidly using water or air jets. This causes the steel to undergo a phase transformation from austenite to martensite, which is a hard and brittle structure. This increases the strength and hardness of the steel but also reduces its ductility and toughness.

Modern Cold Forming

Cold forming is a modern method of manufacturing steel leaf springs that does not involve heating the steel. Instead, it uses high pressure and speed to deform the steel at room temperature or slightly above.
The cold-forming process consists of two main stages:
● Preparation: The steel is cut into blanks or strips of appropriate size and shape using shears or saws. The steel is then cleaned and lubricated to remove any dirt or rust and reduce friction during forming.
● Forming: The prepared steel is fed into a forming machine, where it is deformed into the desired shape using dies or rollers. The forming machine can apply various types of forces, such as bending, drawing, extruding, or rolling. The forming machine can also perform multiple operations in one cycle, such as punching holes or cutting edges.

 

 

Packaging and Shipping

 

 

Packaging

Pallet or as you required

Transportation

Air transport, sea transport, road transport, rail transport

 

 

FAQ

 

Q: How are leaf springs manufactured?

A: Leaves for multi-leaf springs are prepared by cutting and stamping whilst parabolic leaves are hot rolled in a purpose-made rolling machine. The ends of the main leaf are heated and the eyes are then hot rolled.

Q: What are the raw materials for leaf spring?

A: Steel materials such as spring steel, stainless steel and the like already cut to determine length are used as raw materials of the leaf spring, especially steels improved the hardenability by increasing the amount of additive on are desirable.

Q: Why did they stop using leaf springs?

A: It's mostly for packaging and cost reasons. Coils are cheap and compact, but transfer load to a single point. Leaf springs take up more room, cost more, but transfer load to a wider area. That's why you still see leaf springs in larger vehicles designed to carry big payloads.

Q: What are the two types of leaf spring?

A: There are two types of leaf spring suspensions: mono and multi. Mono leaf springs have only a single piece of metal. These will often have a thicker centre which gets narrower towards the edges. This provides similar support to multi-leaf springs.

We're known as one of the most professional leaf spring manufacturers in China. Please feel free to wholesale high quality leaf spring made in China here from our factory. For customized service, contact us now.

Truck Leaf Springs Suitable for VOLVO TRUCK 257931, VOLVO TRUCK front spring 257944 03, Truck leaf springs suitable for VOLVO TRUCK 237325 01 6 Leaves

(0/10)

clearall