China Leaf Spring Manufacturers and Suppliers - Good Price Leaf Spring

Your Professional Leaf Spring Supplier

Founded in 2011 in Zhengzhou, Henan, our factory specializes in the manufacturing of automotive leaf springs for both aftermarket and OEM customers. We operate three dedicated production lines equipped with environmental protection systems, ensuring stable and compliant production under strict regulatory requirements. Our team consists of more than 150 skilled frontline workers, supported by 15 engineers and technicians and 30 professional office staff. With a well-managed manufacturing facility, standardized processes, and reliable inspection equipment, we focus on consistent quality, traceable production, and long-term cooperation. Our capabilities and disciplined operations enable us to serve international customers with confidence and reliability.

Parabolic Leaf Spring Oem 257953 For VolvoTruck
1. Painted colour:black, light grey, dark light, red 2. OEM:257953 for Volvo truck, with rubber bushing 3. At the front location 4. The optional material:Sup9,50CrVA,51CrV4,52CrMoV4
Air Suspension Rear Leaf Spring 6M70K For FUSO Truck
1. Assembling painted black by electrophoresis 2. For Mitsubishi FUSO Truck 3. Air leaf spring with 2 rubber bushings 4. Material:Sup9,50CrVA,51CrV4,52CrMoV4
Full Taper Leaf Spring Oem: WG9725522011 For SINOTRUK
1. Electrophoretic coating black 2. Full taper leaf spring used at the front location3. OEM:WG9725522011 for SINOTRUK dumper vehicle 4. Material: 60Si2Mn, SUP9,50CrVA,51CrV4,52CrMoV4
High-quality Leaf Spring 75x30-1230 For Trailers And Semi-trailers
1. Electrophoretic coating black 2. Used at the rear location3. Size: 75x30-1230 for Trailers and semi-trailers 4. Material: 60Si2Mn, SUP9, 50CrVA,51CrVA, 52CrMoV4
Full Taper Leaf Spring Oem: WG9525523004 For HOHAN Truck.
1. Electrophoretic coating black 2. Full taper leaf spring used at the front location3. OEM:WG9525522304 for HOHAN light-weight vehicle 4. Material: 60Si2Mn, SUP9,50CrVA,51CrV4,52CrMoV4
High-quality Leaf Spring Oem: 90x16-9L-4 For Trailers And Semi-trailers
1. Electrophoretic coating black 2. Used at the rear location3. Size: 90x16-9L-4 for Trailers and semi-trailers 4. Material: 60Si2Mn, SUP9, 50CrVA,51CrVA, 52CrMoV4
High-quality Leaf Spring Oem: TRA696, UXA000252 For Fruehauf Trailers
1. Electrophoretic coating black 2. Used at the rear location3. OEM: TRA696, UXA000252 For Fruehauf Trailers 4. Material: 60Si2Mn, SUP9, 50CrVA,51CrVA, 52CrMoV4
High-quality Leaf Spring Size:P18-26, 75x13-13L For Trailers And Semi-trailers
1. Electrophoretic coating black 2. Used at the rear location3. Size: 75x13-13L for trailers and semi-trailers 4. Material: 60Si2Mn, SUP9, 50CrVA,51CrVA, 52CrMoV4
Full Taper Leaf Spring Oem 55-1238,3533196C91 For Navistar International
1. Electrophoretic coating black 2. Used at the front location3. OEM: 55-1238, 3533196C91 for Navistar International 4. Material: 60Si2Mn, SUP9, 50CrVA,51CrVA, 52CrMoV4
High-quality Leaf Spring Size: 75x13-9L For Trailers And Semi-trailers
1. Electrophoretic coating black 2. Used at the rear location3. Size: 75x13-9L for trailers and semi-trailers 4. Material: 60Si2Mn, SUP9, 50CrVA,51CrVA, 52CrMoV4
High-quality Leaf Spring Oem: 48120-72106 For Toyota Hilux
1. Electrophoretic coating black 2. Used at the rear location3. OEM:48120-72106 for Toyota Hilux 4. Material: 50CrVA,51CrVA, 52CrMoV4
High-quality Leaf Spring Oem: 313370-00 For Mercedes Benz
1. Electrophoretic coating black 2. Used at the rear location3. OEM:313370-00 for Mercedes Benz 4. Material: 50CrVA,51CrVA, 52CrMoV4

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Why Choose Us

OEM & ODM Customization

Based on customer drawings or technical data, our engineers provide optimized designs aligned with application requirements and practical manufacturing conditions.

Production Market

Our products are distributed through authorized dealers across China and exported to North America, Latin America, the Middle East, and Southeast Asia.

Product Application

Our leaf springs are used in light, medium, and heavy trucks, buses, trailers, and construction vehicles.

Standard Quality & Warranty Support

Standard production control ensures stable quality, with a 6-month warranty from the start of use.

High-quality Leaf Spring 930010 For Semi-trailers

A semitrailer leaf spring is a vital component in heavy-duty vehicle suspension systems, engineered to support massive loads while ensuring stability, durability, and shock absorption. These springs are composed of multiple curved metal strips (called "leaves") that are clamped together and mounted between the trailer axle and frame. As the vehicle encounters road irregularities, the leaves flex and slide against each other, absorbing impact and distributing weight evenly across the suspension system.

1	Spring Numer	10
2	Size	90X16-10L
3	Painting Colour	Black
4	Bushings	0
5	Application	Bogie suspension
6	Spring Material	60Si2Mn SUP9/55CrMn 50CrVA 51CrV4 52CrMoV4
7	Packing Way	Square Wood Wooden Pallet Metal Pallet
8	MOQ	50
9	Warranty time( used time)	6 months

Benefits of High-quality Leaf Spring 930010 For Semi-trailers

Durability

Leaf springs are known for their longevity, particularly when manufactured from high-quality materials. With proper maintenance, they can last for many years, contributing to lower overall vehicle operating costs.

Easy Maintenance

One of the significant advantages of leaf springs is their straightforward maintenance procedures. Regular inspections and minor adjustments can keep them in optimal working condition, reducing the likelihood of costly repairs.

High-quality Leaf Spring 930010 For Semi-trailers suppliers

Versatility

Leaf springs can be customized to suit various vehicle sizes and weight capacities, making them incredibly versatile. This adaptability is crucial for different industries, from logistics to construction, where specific load requirements exist.

Improved Handling

Properly functioning leaf springs enhance vehicle handling, making the driving experience safer and more pleasant. Improved handling is especially vital for drivers operating large trucks and trailers.

Types of High-quality Leaf Spring 930010 For Semi-trailers

Leaf spring

The most common type, designed with stacked steel leaves. Simple in design, highly durable, affordable, and easy to maintain or replace. However, it offers lower shock absorption compared to other suspension types.

Parabolic spring

Made from parabolically shaped steel leaves – thin in the center and thicker at the ends – allowing better load distribution and higher load capacity. The drawback is its higher production cost, and when damaged, full replacement is usually required.

High-quality Leaf Spring 930010 For Semi-trailers manufacturers

Air suspension

This type uses inflatable airbags instead of steel leaves, providing elasticity, smoother rides, and improved stability. Its drawbacks are higher installation and maintenance costs, and the airbags are prone to leakage and damage.

Coil spring

Coil spring suspensions offer durability, effective shock absorption, and flexibility for smoother rides. However, coil springs are expensive, require complex maintenance, and are unsuitable for heavy loads.

Applications of High-quality Leaf Spring 930010 For Semi-trailers

Transportation of Heavy Loads
Leaf springs play a vital role in enabling semi-trailers to safely and efficiently transport extremely heavy cargo over long distances. By distributing weight evenly across the axle system, they maintain vehicle balance and prevent structural stress during transit.

Off-Road and Mining Operations
In rugged, off-highway environments, leaf springs offer unmatched durability and resilience. Their simple yet effective design withstands extreme conditions commonly found in mining, logging, and large-scale agriculture.

Trailer and Transport Equipment Manufacturing
Trailer manufacturers rely on leaf springs for their versatility, cost-effectiveness, and proven performance across diverse trailer types. Modern advancements have expanded their application to include lightweight composite variants.

Recreational Vehicle and Specialty Applications
Beyond industrial use, leaf springs enhance ride quality and structural integrity in recreational vehicles and specialty trailers, offering a balance of strength and comfort.

Importance of High-quality Leaf Spring 930010 For Semi-trailers

Load Support

They bear the weight of heavy cargo, distributing it evenly across the axle to maintain balance and stability.

Durability

Designed for long-term use under high stress, leaf springs are known for their resilience in demanding hauling environments.

Vibration Damping

By flexing in response to road irregularities, leaf springs absorb shocks from bumps, potholes, and uneven terrain, protecting both the trailer structure and the cargo.

Alignment Maintenance:

They help keep the axle properly aligned with the trailer frame, ensuring consistent tire contact with the road and reducing wear on tires and other components.

Structure of High-quality Leaf Spring 930010 For Semi-trailer

01/

Spring leaves: Flat, curved, high-elastic steel strips stacked from shortest to longest. The number of leaves varies depending on load requirements.

02/

Spring clamps: Secure the spring leaves at fixed points (usually ends or center) to prevent shifting during operation.

03/

U-bolts: U-shaped bolts that fix spring leaves to the axle or other suspension parts.

04/

Spring pads: Placed between leaves or between leaves and axle to reduce friction and improve ride comfort.

05/

Bushings: Small bearings or sleeves that reduce friction at joints between spring leaves and chassis.

06/

Spring pins: Small sleeves or bearings that minimize friction at the joints between spring leaves and the chassis.

Maintenance

Visual Inspections: Regularly check for cracks, especially at the eyes and center bolt area, as well as signs of misalignment or sagging that could indicate fatigue.

Corrosion Monitoring: Look for rust or damaged paint coatings, particularly in steel springs. Early treatment with rust inhibitors and repainting can extend lifespan.

Lubrication: Grease the shackles, bushings, and eye bolts periodically to prevent binding and ensure smooth articulation. Use waterproof grease in wet or dirty environments.

Cleanliness: Remove dirt, mud, ice, or debris trapped between the leaves, as buildup can restrict movement and accelerate wear.

Bolt Tightness: Ensure U-bolts and center bolts are torqued to manufacturer specifications during tire rotations or brake services.

Alignment Check: Verify that the springs are seated correctly on the axle and that the trailer remains level when loaded.

Certificates

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FAQ

Q: What is your terms of payment?

A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q: Can you produce according to the samples?

A: Yes, we can produce by your samples or technical drawings.

Q: How about your delivery time?

A: Generally, it will take 30 to 60 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q: Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery

Q: How do you make our business long-term and good relationship?

A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We value every customer as a true friend and are committed to building genuine relationships while conducting business with sincerity, no matter where they are from.

As one of the most professional leaf spring manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy high-grade leaf spring at competitive price from our factory.