China Trailer Parts Manufacturers Suppliers - Customized Trailer Parts Made in China

Your Professional Trailer Parts Manufacturer!

Founded in 2016, Shandong Jieyun Automobile Technology Co., Ltd. is a professional manufacturer specializing in the research, development, production, and sales of semi-trailer axles, suspension systems, and related components. Located in Liangshan, China’s well-known special vehicle industrial base, the company operates advanced production lines and a strict quality management system. Its products include American- and German-type axles as well as customized suspension solutions, widely used in wind power transportation, heavy equipment logistics, and container transport. With reliable product quality, strong technical support, and global service capabilities, the company exports to Europe, North America, the Middle East, and Southeast Asia.

Axle Wheel Hub
Our premium trailer axle wheel hub is an essential core component engineered to deliver uncompromising performance and durability for all types of trailers. Meticulously crafted with high-grade
Axle Dust Cover
The trailer axle dust cover is a critical protective component engineered to shield trailer axle hubs, bearings, and internal mechanisms from harmful contaminants like dust, gravel, moisture, and
American-style Shaft Head Nut
The american-style shaft head nut for trailer is a critical fastening component engineered specifically for trailer axle systems, delivering uncompromising stability and load-bearing capacity in
Axle Camshaft
The trailer axle camshaft is a core power transmission component engineered to synchronize the braking and load-bearing performance of trailer axles. Designed for heavy-duty commercial trailers,
Axle Brake Hub
The trailer axle brake hub is a core load-bearing and braking component engineered for heavy-duty trailer applications, designed to deliver exceptional stability and stopping power under extreme load
Brake Pad Assembly
Our trailer axle parts brake pad assembly is a core safety component engineered specifically for heavy-duty and light-duty trailer applications. Designed to deliver reliable friction performance and
Adjusting Arm
The trailer axle parts adjusting arm is a critical component engineered to fine-tune the braking clearance of trailer axles, ensuring optimal braking performance and safety during transportation.
Air Chamber Connecting Fork
The trailer accessories air chamber connecting fork is a critical mechanical component engineered to link the brake air chamber and brake adjuster in heavy - duty trailer braking systems. Crafted
Axis Tie Rod Pin
The axis tie rod pin is a critical load-bearing and connecting component in trailer steering and suspension systems, engineered to link the trailer axle, tie rod, and steering knuckle seamlessly.
Square Iron
Square irons are essential structural components designed for a wide range of trailer types, from light-duty multi-purpose trailers to heavy-duty freight and engineering trailers. Manufactured with
Square Iron Fixing Pin
Our square iron fixing pin is a heavy-duty, precision-engineered component designed specifically for trailer applications, serving as a reliable fastener to secure trailer gates, ramps, and panels.
Axis Center Support Pin
The axis center support pin is a critical load-bearing fastener designed to secure, stabilize, and align rotating or stationary components in industrial machinery. Manufactured with high-strength

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Why Choose Us

Advanced Equipment

Our factory boasts a modern production line covering the entire process from material preparation, welding, machining to assembly and painting. We are equipped with advanced CNC machine tools, robotic welding workstations, and fully automated painting lines to ensure product precision and consistency.

ODM/OEM Service

We possess strong R&D and customization capabilities, enabling us to provide customized axle and suspension solutions based on the standards and requirements of different overseas markets. Our products serve multiple sectors, including trucks, trailers, and construction machinery.

High Quality

We strictly adhere to the IATF 16949 quality management system and have a professional testing center that comprehensively monitors raw materials, processes, and finished products to ensure the safety and reliability of our products.

Production Market

In terms of regional markets, our products have successfully entered several key global markets. In Europe, we focus on high-safety products that meet ECE standards; in North America, our trailer axles have obtained DOT certification; and we have also established stable sales networks in the Middle East and Southeast Asia.

Advantages of Trailer Parts

Improve Transportation Efficiency

Trailer accessories are an essential component of trailers, serving not only to connect the tractor and trailer but also to improve transportation efficiency. For example, tow pins and hooks, as key components connecting the tractor and trailer, enable quick and stable connection and disconnection, thereby improving transportation efficiency.

Ensure Transportation Safety

Another important function of trailer accessories is ensuring transportation safety. For example, braking systems and tires, as safety components of trailers, ensure the safety and stability of the trailer during operation. Failures in the braking system or tires may lead to accidents such as loss of control or rollover.

Enhance Comfort

Trailer accessories can also enhance the comfort of the driver and passengers. For example, some high-end trailer accessories employ shock absorption technology, effectively reducing vibration and noise during operation, thus improving driver and passenger comfort.

Improve Economy

The use of trailer accessories can also improve vehicle economy. For example, some efficient trailer accessories can reduce fuel consumption and maintenance costs, thereby improving vehicle economy. Using unsuitable trailer parts or improper maintenance can lead to decreased vehicle performance or increased failure rate, thereby increasing maintenance costs and impacting economic efficiency.

Applications of Trailer Parts

Our trailer parts are widely used in heavy-duty transportation and industrial hauling applications requiring reliable structural strength, stable performance, and long-term durability.

Designed for demanding operating environments, our trailer components help improve load stability, transportation safety, and operational efficiency across various commercial vehicle systems.

Semi Trailers
Suitable for long-distance freight transportation requiring stable load support and reliable structural performance under continuous heavy-duty operation.

Flatbed Trailers
Designed for flatbed trailer applications involving oversized cargo and heavy equipment transportation, providing dependable load stability and durability.

Cargo Trailers
Supports efficient cargo transportation with durable trailer components engineered for frequent loading, unloading, and long-term commercial use.

Agricultural Trailers
Built for agricultural transportation applications operating in rough terrain and outdoor environments requiring strong load-bearing capability and wear resistance.

Utility Trailers
Suitable for light and medium-duty utility trailer systems requiring reliable towing performance and stable structural support.

Heavy Trucks
Designed for commercial truck and heavy transportation systems requiring durable trailer components and consistent operational reliability.

Construction Transportation Equipment
Engineered for construction and industrial transportation applications exposed to demanding road conditions, heavy loads, and continuous operational stress.

Technical Parameters

Parameter	Specification
Product Type	Trailer Parts & Components
Material	High-Strength Steel / Alloy Steel
Surface Treatment	Powder Coating / Galvanized / Anti-Corrosion Coating
Processing Method	CNC Machining / Precision Welding
Load Capacity	Customizable According to Application
Hardness	Heat-Treated for Enhanced Strength
Corrosion Resistance	500+ Hour Salt Spray Testing
Durability Test	1,000,000+ Fatigue Cycle Testing
Dimensional Tolerance	Precision Controlled
Welding Standard	Automated & Reinforced Welding
Operating Environment	Heavy-Duty & Outdoor Applications
Quality Inspection	100% Pre-Shipment Inspection
OEM Service	Supported
Packaging	Neutral / Customized Packaging
Certifications	ISO 9001 / IATF 16949
Applications	Semi Trailers, Cargo Trailers, Heavy Trucks, Agricultural Equipment

Types Of Trailer Parts

Axle and Suspension System: The axle is the core load-bearing component of the trailer, responsible for transmitting the vehicle's weight and power. The suspension system connects the axle to the trailer body, acting as a buffer and shock absorber, improving ride stability and comfort. Common suspension systems include leaf spring suspension and air suspension.

Braking System: The braking system is crucial for the safe operation of the trailer. It includes components such as brakes, brake discs, brake drums, and brake pads, which generate braking force through friction to slow or stop the trailer. The performance of the braking system directly affects the trailer's braking distance and safety.

Tires and Rim: The tire is the only part of the trailer in contact with the ground, and its performance directly affects the trailer's driving performance and safety. The rim connects the tire to the axle, providing support and securing the tire. When purchasing tires, factors such as load-bearing capacity, wear resistance, and puncture resistance need to be considered.

Electrical System: The electrical system includes components such as lights, signals, and power supply, and is essential for the trailer's nighttime operation and signal transmission. The lighting system includes headlights, turn signals, brake lights, etc., while the signaling system includes various indicator lights and alarms. The power system provides electrical energy to support the normal operation of the electrical system.

Connection and Towing Devices: These are the connecting components between the trailer and the tractor, including the draw pin, drawbar, and towing rod. They need to withstand the weight and traction of the trailer, ensuring a stable connection between the trailer and the tractor.

Packaging and Shipping

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FAQ

Q: What is your MOQ for mechanical suspension products?

A: Our MOQ depends on the product model and customization requirements. Standard models usually support flexible order quantities for wholesale customers. Please contact us for detailed MOQ information.

Q: What is your production lead time?

A: Production lead time typically ranges from 20–35 days depending on order quantity, product specifications, and customization requirements.For urgent orders, we can also discuss flexible production arrangements based on project schedules.

Q: What quality testing do you perform?

A: All products undergo strict inspection, including load testing, durability testing, and dimensional inspection before shipment.

Q: Do you support OEM orders?

A: Yes. We provide OEM manufacturing, customized packaging, and logo branding services.

Q: Are samples available?

A: Yes. Sample orders are available for quality evaluation and testing before bulk production.Please contact our sales team for sample availability and delivery details.

As one of the leading trailer parts manufacturers and suppliers in China, we also support customized service. Please feel free to buy high quality trailer parts made in China here from our factory. For pricelist, contact us now.