Chinese leaf spring manufacturer for BPW suspension

Short Description:

Part No.	9202646	Paint	Electrophoretic paint
Spec.	90×11	Model	Semi Trailer
Material	SUP9	MOQ	100 SETS
Free Arch	102mm±4	Development Length	1120
Weight	64.5 KGS	Total PCS	11 PCS
Port	SHANGHAI/XIAMEN/OTHERS	Payment	T/T,L/C,D/P
Delivery Time	15-30 days	Warranty	12 months

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Product Detail

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Detail

The leaf spring is suitable for semi-trailer

1. The item total has 11 pcs, the raw material size is 90*11
2. Raw material is SUP9
3. The free arch is 102±4mm, the development length is 1120, the centre hole is 14.5mm
4. The painting use electrophoretic painting
5. We also can produce base on client's drawings to design

Do semi trailers have leaf springs?

Semi-trailers often use leaf springs as part of their suspension system. Leaf springs are a type of suspension spring that are made of multiple layers of metal bars bent into an arc.
They are widely used in the automotive industry, including semi-trailers, due to their durability, load-carrying capacity, and ability to provide a smooth ride.
Leaf springs are usually placed parallel to the trailer’s axle and attached to the trailer’s frame at both ends.
They play a vital role in supporting the weight of the trailer and its cargo, as well as absorbing road shock and vibration to provide stability and a comfortable ride.
The number and configuration of leaf springs used in a semitrailer suspension system may vary depending on the size, weight capacity, and intended use of the trailer.
Heavy-duty trailers designed to transport large loads often feature multiple sets of leaf springs to distribute the weight and provide adequate support.
In addition to their load-carrying capabilities, leaf springs are favored for their relatively simple design and cost-effectiveness compared to other types of suspension systems.
They are also known for their ability to withstand heavy loads and harsh road conditions, making them a popular choice for semi-trailers.
While some modern semi-trailers may use alternative suspension systems such as air suspension, leaf springs remain a common and reliable choice for many trailers due to their proven performance and durability.
To sum up, leaf springs are indeed commonly used in semi-trailers to provide necessary support, stability and shock absorption functions to ensure safe and efficient transportation of goods.

Applications

How do I know what leaf springs I need for my trailer?

To determine which leaf springs are right for your trailer, you need to consider several factors.
First, you should determine the required weight of your trailer. This can be calculated by adding the weight of the trailer when fully loaded to the weight of the cargo it is carrying.
Once you have this number, you can choose a leaf spring rated to support that weight.
Next, you should consider the type of suspension system your trailer currently has, as well as the size of the existing leaf springs.
This will help you ensure that the new leaf springs are compatible with your trailer’s suspension system and are installed correctly.
It’s also important to consider the trailer’s intended use. If you frequently transport heavy items or drive over rough terrain, you may want to invest in heavy-duty leaf springs to provide greater durability and support.
Additionally, you may want to consult a professional or refer to the trailer manufacturer’s guidelines to ensure you select the correct leaf springs for your specific trailer model.
Ultimately, the key to determining the right leaf spring for your trailer is understanding the trailer’s weight capacity, suspension system, dimensions, and intended use.
By carefully considering these factors, you can confidently choose the right leaf spring to meet the needs of your trailer.

Reference

Provide different types of leaf springs which include conventional multi leaf springs, parabolic leaf springs, air linkers and sprung drawbars.
In terms of vehicle types, it include heavy duty semi trailer leaf springs, truck leaf springs, light duty trailer leaf springs, buses and agricultural leaf springs.

Leaf Springs Project

Production

How to measure!!!

Packing & Shipping

QC equipments

Our advantage

Quality aspect:

1) Raw Material

Thickness less than 20mm. We use material SUP9

Thickness from 20-30mm. We use material 50CRVA

Thickness more than 30mm. We use material 51CRV4

Thickness more than 50mm. We choose 52CrMoV4 as the raw material

2) Quenching Process

We strictly controlled the steel temperature around 800 degree.

We swing the spring in the quenching oil among 10 seconds according to the spring thickness.

3) Shot Peening

Each assembling spring set under stress peening.

Fatigue test can reach over 150000 cycles.

4) Electrophoretic Paint

Each item use electrophoretic paint

Salt spray testing reach 500 hours

Technical aspect

1、Consistent Performance: Leaf springs have consistent performance characteristics, helping vehicle occupants achieve predictable handling and ride quality.
2、Weight distribution: Leaf springs effectively distribute the weight of the vehicle and its cargo, helping to balance load distribution and improve stability.
3、Impact resistance: Leaf springs can absorb and buffer the impact of uneven road surfaces, making the ride smoother and more comfortable.
4、Corrosion resistance: Properly treated and coated leaf springs show good corrosion resistance, improving their service life and reliability in various environments.
5、Environmental benefits: Leaf springs can be recycled and reused, providing environmental benefits in terms of sustainability and resource conservation.

Service aspect

1、Customization: Our factory can tailor leaf springs to meet specific customer requirements, such as load capacity, dimensions, and material preferences.
2、Expertise: Our factory’s staff possess specialized knowledge and skills in designing and manufacturing leaf springs, ensuring high-quality products.
3、Quality control: Our factory implements rigorous quality control measures to guarantee the reliability and durability of its leaf springs.
4、Production capacity: Our factory has the capability to produce leaf springs in large quantities, meeting the demands of various industries and customers.
5、Timely delivery: Our factory’s efficient production and logistics processes enable it to deliver leaf springs within specified timelines, supporting customer schedules.

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