China high quality German Type Tri-Axle Semi Trailer Mechanical Suspension Leaf Spring Suspension

Product Description

Product Description

1. Carry greater vertical load and better torque. 

2. Easy installation, low price, long service life, low maintenance cost. 

3. It is suitable for various road conditions and has many optional specifications.

Hanger Assembly

The suspension is stamped and welded with Q345 steel plate material, which is light in weight and strong in
rigidity. The leaf spring will not shift during use.

Leaf Spring
Suspension can be matched with different width/ thickness/number of pieces, we can recommend the number
of leaf springs according to the load. Use high-quality steel, long life and large load

 

Ordinary semi-trailer body, axles and suspension systems, axle and suspension system located at the base of the body, among them,the axle is a barbell, on both ends of the axle set wheels, the lateral set on the bottom of the body, between the body and the axle suspension system to connect the axle and the body: when the body drag force, the body through the suspension system located at the ends of the axle wheel movement.Semi-trailer plate spring suspension (plate spring suspension for short) is divided into less plate variable cross-section steel suspension and constant cross-section multi-plate spring suspension.At present, more than 95% of the domestic heavy truck suspension system is based on the plate spring as the elastic element and guide device of the non-independent suspension, its main advantages are simple structure, easy manufacturing, convenient maintenance, mature technology, reliable work.

The trailer suspension is a device that connects the trailer frame with the axle wheel.Its main function is to transfer the various forces and moments between the wheels and the frame, and reduce and eliminate the impact load and vibration from the road surface to the frame through the axle, so as to improve the ride comfort of the trailer.

More information on mechanical suspension (for reference only)

1. Semi-trailer suspension provides 2.2 axle system, 3 axle system, 4 axle system and single point suspension system
2. The front, middle and rear spring hangers are made of high-strength low-alloy steel plates (pressure welded structure), which are stronger but lighter than the old ones
3. The new design can prevent the spring back from moving sideways during operation. The 90mm wide steel spring back is made of high-quality materials
4. Antifriction block (welding) is made of high-strength steel plate material (or # 20cast steel)
5. Its angle is consistent with the expansion direction between the steel plate spring and the rocker anti-friction block.
6. The angle of torque arm shall be adjusted scientifically. It can effectively reduce the instantaneous sliding distance between the tire and the ground, effectively reduce the friction of the tire, and increase the service life of the tire.
7. The torque arm bushing is made of polyurethane rubber. It has a cushioning function, which can cushion the instantaneous wear of the tire when sliding and shifting.
8. The above features, together with correct installation, reliably ensure the perpendicularity between the axle and the kingpin, effectively eliminate offset wear and gnawing, and make the tire wear even.

Precautions for mechanical suspension (for reference only)
1. Can be equipped with 13/16/20T
2. The graph axis/square axis can be configured.
3. You can choose to install now or reverse.
4. It may be necessary to select the side wall thickness of 6mm, 8mm or 10mm
5. Spring specification: width 90mm, 100120mm: number of leaves optional
6. A: no-load size, B: full-load size 

 

Product Recommended

Why Choose US

HangZhou Hongruida Trailer Parts Co., Ltd. Mainly produces semi trailer and its related trailer accessories, truck parts, including various types of American type trailer axle, concave axle, spoke axle, German type trailer axle, agricultural axle, American type suspension, single point suspension, rigid suspension, air suspension, leaf spring and landing gear, kingpin, air chamber, air reservoir, etc. Our sales network covers all regions of the world. Both new and old customers support customization. 

We have advanced processing technology, first-class production line, professional production quality, high-quality service concept, guarantee your trailer business brighter! Our products are produced strictly in accordance with national implementation standards, with reasonable prices, and the cost performance ratio is far ahead in the industry, which is highly praised by customers! 

High quality, competitive price to continue to provide customers witih best products is our constant pursuit. With advanced first class production equipments and high technology engineerings, which make high quality and one-to-1 24 hours full-time service, our products are being exported more than 30 countries with the right to import and export. Welcome your inquiry.
Our Service
1. Advanced equipment and rich experience workers are applied during the whole producing process to ensure the quality of Low bed semi trailer.
2. We have passed ISO9001:2008, CCC, BV, SGS, TUV.
3. We have more than 20 years of experience and a strong team of engineers, we are manufacturer, we could design the product according to your special requirements.
4. We have rest assured after-sales service.

Packaging & Shipping

We usually adopt shipping by bulk cargo, flat rack, container container and Roro ship. We will arrange the most cost-effective transportation mode according to the quantity of products. All trailers will be polished with wax before shipping. We guarantee that all products have gone through strict inspection and are in good condition before shipment. We strive for 100% customer satisfaction on every sale we close.

Delivery time:10-20 working days after payment receipt confirmed (based on actual quantity).

Packing:Standard export packing, or customized packing as your request.

Professional goods shipping forwarder.

FAQ

1. How is the quality of your products?

Our products are manufactured in strict accordance with national and international standards, and we test each product before delivery. If you would like to view our quality certification and various test reports, please contact us.

 

2. How about price?

We are a factory and able to give you the lowest price. Please trust the quotation we would give you, and it is professional one.

 

3. Why should you chose us?

Choosing us happens because of quality, then price, and we can give you both. Additionally, we can also offer professional products inquiry,products knowledge train(for agents), smooth goods delivery, excellent customer solution proposals.

 

4. How to ensure the interests of buyers?

Our company supports Alibaba online trading, which not only ensures the safety of the buyer’s funds, but also guarantees the quality of the goods. From the outbound, to the loading, and finally to the receiving, the whole process is transparent.

 

5. How to guarantee delivery time?

We are a factory with a large inventory of stock, which guarantees that the goods will be shipped within the shortest time from the date of signing the contract.

 

6. How to get samples?

We can provide samples for buyer’s testing free of charge, but buyers need to pay for shipping costs.

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After-sales Service: 1 Year
Type: Air Suspension
Certification: ISO/TS16949, CE
Loading Weight: 25T
ABS: With ABS
Tent Type: Simple
Customization:
Available

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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

What are the signs that indicate a need for trailer suspension replacement or maintenance, and how can they be diagnosed?

Recognizing signs of trailer suspension issues is crucial for timely replacement or maintenance to ensure safe and efficient towing operations. Here are common signs and how to diagnose them:

  • 1. Uneven Tire Wear: Uneven tire wear, such as cupping or feathering, can indicate suspension problems. Inspect the tires for unusual wear patterns, and if you notice uneven wear, it may suggest misalignment or worn suspension components.
  • 2. Excessive Bouncing: If the trailer bounces excessively while in motion, it may be a sign of worn-out shock absorbers or dampers. You can diagnose this by observing the trailer’s behavior while driving on a smooth road. If it continues to bounce after encountering bumps, the shocks may need replacement.
  • 3. Squeaking or Clunking Noises: Unusual noises, such as squeaks or clunks, coming from the suspension while driving can indicate worn or damaged components. You can diagnose this by having someone bounce the trailer while you listen for noises, or by performing a visual inspection for loose or damaged parts.
  • 4. Poor Handling and Steering: Difficulty in handling or steering the trailer, especially during turns, can be a sign of suspension problems. Uneven handling or drifting may indicate suspension misalignment or worn-out components. Test the trailer’s handling by driving on a straight road and checking for any deviations.
  • 5. Excessive Trailer Sway: If the trailer sways excessively from side to side, it may indicate suspension issues. This can be dangerous and is often a result of imbalanced weight distribution or worn-out suspension components. Diagnosis involves inspecting the suspension for damage and ensuring proper load distribution.
  • 6. Fluid Leaks: Fluid leaks from shock absorbers or dampers are a clear sign of component failure. Inspect the shocks for visible leaks, which can often be diagnosed by oil residue or wetness around the shock body.
  • 7. Sagging Suspension: A visibly sagging or lower-than-normal suspension can indicate weakened springs or overloaded suspension components. A visual inspection can quickly reveal if the suspension is not maintaining its proper ride height.
  • 8. Excessive Play: When manually rocking or pushing the trailer, excessive play or movement in suspension components, such as bushings or pivot points, can suggest wear or damage. Hands-on inspection can help identify these issues.

Diagnosing trailer suspension problems typically involves a combination of visual inspection, listening for unusual noises, and observing the trailer’s behavior while driving. Regular maintenance and inspections can help detect issues early and prevent more extensive damage or accidents.

If you encounter any of these signs, it’s advisable to have the trailer suspension inspected by a qualified mechanic or technician who can provide a thorough diagnosis and recommend necessary maintenance or replacement.

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 high quality German Type Tri-Axle Semi Trailer Mechanical Suspension Leaf Spring Suspension  China high quality German Type Tri-Axle Semi Trailer Mechanical Suspension Leaf Spring Suspension
editor by CX 2024-04-03