High-Quality Mechanical Suspension for Heavy-Duty Truck Semi-Trailers Ranging From 8 to 20mm Are Customizable

• Customization: Available
• Loading Weight: > 150 Tons
• Material: Steel
• Number of Axles: Triple Axle Suspension
• Type: Leaf Spring Suspension
• Inner Sleeve of Suspension: Bearing Steel
• Thickness: 8-20mm Customized
• Color: Customized
• Balance Arm Pin: 50-60-70-75
• Material of Balance Beam: Manganese Plate
• Transport Package: Transportation of Wooden Pallets
• Specification: Customized according to customer requirements
• Trademark: Li Fan Heavy Industry
• Origin: Shandong, China
• HS Code: 87164000
• Production Capacity: 50000peices/Year
• Package Size: 12.00cm * 70.00cm * 30.00cm
• Package Gross Weight: 56.000kg

Product Description

Product Description

American Suspension Bracket for Semi-Trailer

Basic IntroductionIt is a key component of the semi-trailer suspension system, usually consisting of front, middle, and rear brackets. It is mostly made of Q345 plates or cast steel, and formed into a closed box structure through processes like pressing and welding.
Functions and Uses It connects the frame and axle of the semi-trailer, supports the vehicle's weight, balances the load of each axle, attenuates road impacts, ensures driving stability, and effectively prevents tire eccentric wear.
Structural Features It is equipped with multiple mounting holes and connection structures. Some are provided with grease nipples to reduce sliding friction between components. Brackets with different thicknesses (such as 6mm, 8mm, 10mm, etc.) are suitable for semi-trailers with different tonnages.

Durable Trailer Suspension Components 

Our high-performance semi-trailer suspension is meticulously crafted for durability, reliability, and optimal performance in freight transportation, logistics, and heavy-duty hauling operations.Designed with state-of-the-art manufacturing processes and premium high-strength materials, this suspension guarantees remarkable shock absorption capabilities, stable support for the vehicle body, and efficient transmission of forces between the frame and axles.  It can effectively buffer the impacts from uneven road surfaces, ensuring a smooth ride and safeguarding the cargo from damage during transportation.Equipped with advanced elastic elements, such as high-quality steel plate springs or air springs depending on the specific model, along with precision-engineered shock absorbers and reliable guiding mechanisms, it provides excellent load-bearing capacity to handle heavy loads with ease.  Whether on rough mountain roads, bumpy rural paths, or smooth highways, this suspension demonstrates outstanding adaptability and delivers consistent and stable performance in diverse transportation scenarios.  Moreover, it is designed to have a long service life, reducing maintenance frequency and costs for users, making it an ideal choice for various heavy-duty applications in the transportation industry.

Configuration Item	Parameter Description
Main Material	Main structure adopts Q345 high-strength steel plate (equivalent to ASTM A572 Grade 50), with optional thickness range of 8-20mm (8mm/10mm/12mm/15mm/18mm/20mm). Critical stress-bearing parts can be customized with cast steel (ASTM A105) for enhanced load capacity.
Structural Dimensions	Front bracket: 320mm (12.6") × 180mm (7.1") × 450mm (17.7"); Middle bracket: 350mm (13.8") × 200mm (7.9") × 480mm (18.9"); Rear bracket: 300mm (11.8") × 190mm (7.5") × 460mm (18.1"). Dimensions can be adjusted for custom trailer models.
Applicable Trailers	Compatible with international semi-trailer types: dry van trailers, flatbed trailers, refrigerated trailers, and dump trailers. Suitable for 2-axle/3-axle/4-axle semi-trailers with total weight of 10-45T.

Main Products

Company Profile

Shandong Lifan Heavy Industry Machinery Co., Ltd. is a comprehensive industrial and trade enterprise integrating semi-trailer & mechanical equipment manufacturing, product design, R&D, sales, and import & export. Its product range is rich, covering container transport semi-trailer, van-type transport semi-trailer, low-bed semi-trailer, tanker semi-trailer, special-purpose semi-trailer, etc and various mechanical equipment & component parts.

 

After more than 10 years of development, we have achieved outstanding results in the foreign trade field. Relying on our diverse product matrix and high quality, our business has successfully expanded to Southeast Asia, Central Asia, Africa, Russia, South America and other countries along the "Belt and Road". Currently, we have established long-term and stable cooperative relationships with over 200 domestic and foreign agents and overseas customers, and annual export volume grows steadily. We could provide customized solutions, after-sales service and cargo transportation assistance to ensure smoothness and efficiency cooperation.

Our company covers over 180,000 m² ( 50,000 m²for production workshop) and has more than 380 employees. Our factory is equipped with advanced production and testing equipment, such as laser cutting machines, robotic welding systems, automatic welders (oxygen-argon-nitrogen tri-gas shielded welding, no cracks or damage at welds), fully automatic assembly lines (realizing product-level zero error), and Shandong's largest vehicle through-type sandblasting machine with an annual output of 20,000 units. We holds the qualification for exporting special steel structures; many of our products have reached domestic top level via national technical appraisal. We also has international certifications like ISO9001 and CCC and over 30 patents. We have won wide trust with reliable quality.

Company Advantages

Certifications

Exhibition

Packaging & Shipping

FAQ

Q: Production lead time?

A: 10-30 days.

 

Q: What is your main product?

A: We are a one-stop semi-trailer manufacturer, such as: flatbed semi-trailer, fence semi-trailer, Side-tipping and rear-tipping dump semi-trailer and all kind of semi-trailers.

 

Q: What is the minimum order quantity?

A: Our MOQ is 1pcs

 

Q: What is your payment term?

A: We prefer to use T/T, L/C, for other payment terms, we can also negotiate it. 

 

Q: What international trade terms do you offer?

A: We offer EXW, FOB, and CIF. Other trade terms can also be negotiated based on mutual agreement.

 

Q: Why choose Shandong Lifan Heavy Industry Machinery Co., Ltd products?
A: We have advanced equipment, excellent production team, strict quality control, welcome to visit our factory to confirm.

 

Q: What after-sales support do you provide?

A: We offer a 12-month global warranty. We provide 24/7 online technical support (videos/phone calls) for maintenance.

 

Q: How to ensure product quality.

A: Before shipment, you can send a representative to inspect the goods, or we can arrange a live video inspection.

 

Q: What if there is a quality problem after receiving receipt?

A: If the problem is caused by our product defect, we will send replacement parts for free within 7 days or arrange on-site repairs through local partners.

 

Q: Do your semi-trailers comply with international standards and local regulations of the destination country?

A: Yes. All our semi-trailers meet ISO standards (e.g., ISO9001) and are customized to align with local regulations of your country—such as weight limits, lighting requirements, and emission rules. We provide compliance certificates to ensure smooth customs clearance and legal operation.

Q: Can you customize the semi-trailer according to my specific transportation needs (e.g., cargo type, load capacity, dimensions)?
A: Absolutely. We offer fully customized solutions—whether you need a flatbed trailer for heavy machinery, a refrigerated trailer for perishables, or a trailer with adjusted axle distance/load capacity (up to 100 tons). We'll work with you to confirm cargo details, then provide CAD design drawings for your approval before production.
 
Q:What documents will you provide to help with customs clearance and registration in my country?
A: We prepare a complete document package, including commercial invoice, packing list, bill of lading, ISO compliance certificate, Certificate of Origin. All documents are formatted to meet your country's customs requirements, minimizing clearance delays.