China factory L1 (Yonglitai) Spare Parts Air Spring Eak Air Suspension for Semi-Trailer

Product Description

Main Products

Main Products

Product Description

Product Description

Low Air Leaf Suspension, also known as leaf spring suspensions, absorb shocks and vibrations in heavy commercial vehicles, similar to air ride suspensions. These tough pieces of spring steel supply the capability of your suspension to move with the terrain of the roadway so that the energy is not transferred from the wheels to the chassis, providing a more comfortable ride.

This Low Air Leaf Suspension reduced its weight 325 lbs. compared its predecessor, Yonglitai’s Air Leaf. It has considerably fewer parts, a higher weight rating (40k), and improved ground clearance. It is approved for use in belly-dumps and when lower fifth-wheel heights are necessary (high-cube van, reefer, bulk-haul, car carriers and high center-of-gravity loads.)With a bonded OE-style rubber bushing, the pin is not allowed to rotate, so the entire bushing can be forced to spin within the eye of the spring thus leading to the wallowed out spring eye. Bonded rubber bushings attempt to combat this with an inboard flanged outer sleeve encased in a ring with detents for “gripping” the edge of the spring’s eye.

No matter which solution you’re partial to, Yonglitai Suspensions will ensure you have the perfect truck or trailer suspension solution for your needs! That’s what sets us apart; We listen to your needs, and then engineer the proper suspension around those needs.

Product Parameters

Product Parameters

Capacity 10T Brand Name L1
Material Alloy steel+Special industrial rubber Payment Terms T/T, Western union,L/C….
Supply Ability 150000PCS axles /50000sets suspensions each year MOQ One container/50-60pics axle/5-12ets axle assembly
Production Time 15 days Warranty 12 months
Port HangZhou San Shui, Jiu Jiang    


Product Features

Product Features

EAK Air Suspensions provide good damping action.

EAK Air Suspensions provide good support to the axle and the chassis.

Leaf springs are simple in design.

Leaf springs can withstand a large amount of load when compared to helical springs.

Increased protection of delicate goods

More economical; less wear-and-tear

Increased road safety; more comfort

Less damage to road surfaces

Reduced noise; more environmental protection

Simple adaption to loading ramp heights

Long life-expectancy; reduced costs

Increase vehicle speed

Operational temperature of air sping: -50/55 degree centigrade

Compatible width of vehicle frame: 960mm-1200mm

The factory has passed the ISO and TS16949 standard authentication of international quality control system.

Strict quality control system to assure our excellent product quality.

Air Suspensions are popular in the CHINAMFG market, including North American, South


L1 EAK Air Suspension Characteristics

  • Single-bridge four-airbag structure, equipped with transverse stabilizer bar and shock absorber, the weight of the air ride suspension kits for semi trucks is lighter than the balance suspension, compact layout, and a certain overload capacity;

  • Modular heavy duty air suspension kits design, suitable for 4×2 and 6×4 heavy trucks;

  • The number of the truck air suspension parts is small, and the degree of generalization and interchangeability is high.

  • Under no-load conditions, due to the lightweight of the vehicle, the air ride truck for sale can reduce fuel consumption and tire wear when the vehicle is running

  • Compared with the leaf spring suspension, the heavy duty air suspension has a lower frequency deviation, greatly improves comfort, and can effectively protect the transportation of goods, especially suitable for the transportation of hazardous chemicals;

  • The super duty air ride suspension adopts a series structure of air spring and guides arm, with a lateral thrust rod, which greatly improves the anti-rolling ability of the whole vehicle.

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After-sales Service: 24 Hour Online
Material: Alloy Steel & Special Industrial Rubber
Certification: ISO/TS16949, ISO9001, SGS
Position: Rear
OEM: Yes
Type: Air Suspension


trailer suspension

Can you provide examples of trailers or towing applications that commonly use suspensions?

Yes, various trailers and towing applications commonly use suspensions to ensure optimal performance, stability, and ride comfort. Here are some examples:

  • Utility Trailers:
  • Utility trailers, including flatbed trailers, enclosed trailers, and landscape trailers, often utilize suspensions. These trailers are used for a wide range of purposes such as transporting equipment, materials, or goods. Suspensions help provide a smoother ride and improved load-carrying capacity, ensuring that the trailer can handle different types of cargo and road conditions.

  • Recreational Trailers:
  • Recreational trailers, such as travel trailers, fifth-wheel trailers, and toy haulers, commonly incorporate suspensions. These trailers are designed for recreational purposes, including camping, road trips, and outdoor adventures. The suspensions help enhance ride comfort, stability, and handling characteristics, providing a more enjoyable towing experience for the occupants.

  • Horse Trailers:
  • Horse trailers, which are specifically designed to transport horses, often utilize suspensions. These trailers typically have special features such as dividers, ramps, and ventilation systems to ensure the safety and well-being of the horses during transportation. Suspensions play a crucial role in minimizing vibrations and shocks, providing a smoother ride for the horses and reducing their stress levels.

  • Boat Trailers:
  • Boat trailers are used to transport boats from one location to another, such as from a storage facility to a launch site. These trailers need to accommodate the weight and dimensions of the boat while providing stability and maneuverability on the road. Suspensions help absorb shocks and vibrations, preventing damage to the boat and ensuring a smoother towing experience.

  • Commercial Trailers:
  • Various types of commercial trailers, including semi-trailers, refrigerated trailers, and tanker trailers, rely on suspensions. These trailers are used in industries such as logistics, transportation, and bulk liquid hauling. Suspensions are essential to handle heavy loads, maintain stability, and ensure safe and efficient transportation of goods over long distances.

These are just a few examples, and suspensions are utilized in a wide range of other trailer types and towing applications as well. It’s important for trailer owners and operators to select the appropriate suspension system based on the specific requirements of their trailers, including load capacity, intended use, road conditions, and regulations.

In summary, suspensions are commonly used in utility trailers, recreational trailers, horse trailers, boat trailers, commercial trailers, and many other types of trailers and towing applications. The inclusion of suspensions helps improve ride quality, stability, and handling characteristics, ensuring a safe and comfortable towing experience.

trailer suspension

How do trailer suspensions contribute to the adaptability and versatility of trailers in various settings?

Trailer suspensions play a pivotal role in enhancing the adaptability and versatility of trailers across different settings and applications. They provide several key benefits that contribute to the overall performance and functionality of trailers:

  • 1. Load Handling: Trailer suspensions are designed to support and distribute the weight of various types of cargo. Whether it’s heavy construction materials, fragile goods, or specialized equipment, the suspension system ensures that the trailer can handle the load effectively without compromising stability.
  • 2. Terrain Adaptability: Trailer suspensions are engineered to adapt to different terrains, including rough roads, off-road trails, and uneven surfaces. This adaptability allows trailers to navigate challenging environments, making them suitable for construction sites, agricultural fields, and remote areas.
  • 3. Smoother Ride: A well-designed suspension system contributes to a smoother and more comfortable ride for both the trailer and its cargo. This is essential for transporting delicate or sensitive goods, as it reduces the risk of damage and ensures a better overall experience for the driver.
  • 4. Stability and Control: Suspensions improve the stability and control of trailers, especially when making turns, navigating corners, or driving at high speeds. This enhances safety on the road and minimizes the risk of accidents or rollovers.
  • 5. Versatile Attachment Points: Many trailer suspensions feature versatile attachment points that allow for various configurations and types of trailers. This adaptability means that a single suspension system can be used for different trailer designs, providing cost-effective solutions.
  • 6. Load Distribution: Trailer suspensions distribute the weight evenly across multiple axles. This even weight distribution prevents excessive strain on individual components and tires, reducing wear and extending the lifespan of the trailer.
  • 7. Adjustable Features: Some suspensions come with adjustable features such as airbags or adjustable shock absorbers. These features allow operators to fine-tune the suspension’s performance based on the specific needs of the load and terrain, further enhancing adaptability.
  • 8. Maintenance Ease: Properly maintained suspensions are easier to service and repair, making trailers more adaptable in situations where maintenance or repairs are required in remote or challenging locations.

In summary, trailer suspensions are integral to the adaptability and versatility of trailers in various settings. They enable trailers to handle different loads, terrains, and conditions while ensuring safety, stability, and a smoother ride. By selecting the right suspension system and maintaining it effectively, trailer operators can optimize their trailers for a wide range of applications and environments.

trailer suspension

What is trailer suspension, and how does it contribute to the smooth operation of a trailer?

Trailer suspension plays a crucial role in the smooth operation of a trailer by providing support, stability, and shock absorption. Here’s a detailed explanation:

  • Definition: Trailer suspension refers to the system of components designed to support the trailer’s weight, absorb road shocks, and maintain stability during towing. It typically includes components such as leaf springs, coil springs, torsion axles, airbags, shock absorbers, and linkages that connect the trailer’s axles to the frame.
  • Weight Distribution: The primary function of trailer suspension is to distribute the weight of the trailer and its load evenly among the axles. Proper weight distribution is crucial for maintaining stability and preventing excessive strain on individual axles, tires, and other components. A well-designed suspension system ensures that the weight is evenly distributed, reducing the risk of overloading and improving overall towing performance.
  • Shock Absorption: Trailer suspension helps absorb road shocks and vibrations, minimizing the impact transferred to the trailer and its cargo. This is achieved through the use of springs and shock absorbers. Springs, such as leaf springs or coil springs, compress and expand to absorb the vertical forces caused by uneven road surfaces, bumps, or potholes. Shock absorbers further dampen these movements, preventing excessive bouncing or jolting and providing a smoother ride.
  • Improved Traction and Handling: A well-functioning suspension system enhances traction and handling characteristics of the trailer. By maintaining constant contact between the tires and the road, the suspension system improves traction, especially in challenging road conditions or during maneuvers. It also contributes to better handling, allowing the driver to maintain control over the trailer, reduce sway, and navigate turns more smoothly.
  • Reduced Wear and Tear: Trailer suspension helps minimize wear and tear on various components by absorbing and distributing forces. By cushioning the impact of road irregularities, it reduces stress on the trailer’s frame, axles, tires, and other critical parts. This can lead to a longer lifespan of the trailer and its components, reducing the need for repairs or replacements.
  • Enhanced Safety: A properly functioning suspension system contributes to the overall safety of towing operations. It helps maintain stability, prevents excessive trailer movement or bouncing, and reduces the risk of losing control or encountering handling issues. By absorbing shocks and vibrations, the suspension system also minimizes the potential for cargo damage and improves road grip, especially in emergency braking situations.

In summary, trailer suspension is a vital component that provides support, stability, and shock absorption in towing applications. It ensures proper weight distribution, absorbs road shocks, improves traction and handling, reduces wear and tear, and enhances overall safety. Regular inspection and maintenance of the trailer suspension system are essential to ensure its optimal performance and contribute to a smooth and trouble-free towing experience.

China factory L1 (Yonglitai) Spare Parts Air Spring Eak Air Suspension for Semi-Trailer  China factory L1 (Yonglitai) Spare Parts Air Spring Eak Air Suspension for Semi-Trailer
editor by CX 2024-01-24