For Semi Trailer Heavy Duty Leaf Spring Steel Truck Parts

Product Description

This leaf spring is a heavy-duty suspension component made of multiple elastic steel plates of equal width but different lengths. It connects the vehicle frame and axle, supporting the load transmitted from the wheels while absorbing road shock and vibration. Positioned between the frame and axle, it helps maintain vehicle stability and improves adaptability to different road conditions.
The product features a durable black coating for rust resistance and a clean appearance, and is engineered for long fatigue life and reliable performance under heavy loads.

Product Highlights:

🔹 Optimized Load Distribution – The tapered, multi-leaf design distributes stress evenly, providing excellent load-bearing capacity while reducing overall weight.

🔹 High-Strength Spring Steel – Manufactured from premium-grade steel to withstand heavy loads, road shock, and extreme operating conditions.

🔹 Precision Forged Ends – The specially shaped ends (wrapped/flat) ensure a secure fit into the suspension brackets, minimizing wear and tear.

🔹 Reinforced Retaining Clamps – Heavy-duty steel clips keep the spring leaves firmly aligned, preventing lateral shifting under high stress.

🔹 Durable Anti-Rust Finish – Features a tough black protective coating to resist corrosion and extend service life in harsh environments.

🔹 Application – Ideal for heavy-duty semi-trailers, commercial trucks, and off-road transport vehicles.

Why Choose Our Leaf Springs?
 

1. Ultimate Rust Resistance & Flawless Finish
 

How we do it: We use electrophoretic (single leaf) and electrostatic (assembled) painting processes.

What you get: A salt spray resistance of over 500 hours (more than double the industry standard of 200 hours). You get a uniform, scratch-free coating that looks great and fights rust effectively.
 

2. Extended Lifespan with Shot Peening
 

How we do it: We apply pre-stressed shot peening under rated load conditions.

What you get: A fatigue life of over 160,000 cycles (exceeding the standard 150,000). This means your springs can handle heavier loads and deliver a much longer service life.
 

3. Precision Pre-Pressing & Computer-Controlled Camber
 

How we do it: Pre-pressing is done under rated load, and the camber is precisely selected and controlled by computer systems.

What you get: Guaranteed proper camber with minimal tolerance. We effectively screen out any products with unqualified camber, ensuring you only get the best.

Product Details


Packaging

FAQ

1. What materials do you use for the leaf springs?
We use top-grade materials like 60Si2Mn, SUP9, 50CrV, and 51CrV4, along with other grades tailored to your needs. Not sure which is best? Tell us your application and technical specs, and we'll recommend the perfect fit.

2. How do you guarantee the quality?
Quality is our priority. Our production strictly follows ISO9001 and TS/IATF16949 standards. From raw material selection to heat treatment, shot peening, painting, and final inspection, we control every step to ensure reliable performance.

3. How can I get the best price?
Pricing depends on the material, size, design, load capacity, and order quantity. The more details you share in your inquiry, the more accurate and competitive our quote will be. (And yes, larger quantities always get better pricing!)

4. Can we put our logo or brand on the products?
Absolutely. We offer logo printing, label printing, and stamping services. In most cases, standard printing is free. Just send us your logo design for confirmation before production starts.

5. How do you pack the products?
We provide customized packaging based on your requirements to ensure the leaf springs are fully protected during transit. Typically, they are bundled with strong steel straps and wrapped in waterproof materials for safe sea transport.

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