Trailer Accessories

Your Professional Trailer Accessories Supplier

Ruiyuan Semi-trailer Company is a leading enterprise specializing in the production and sales of various tank semi-trailers, dedicated to delivering high-quality and high-performance transportation solutions to global customers.

Advanced Equipment

Equipped with state-of-the-art production facilities and modern production lines, complemented by advanced customized manufacturing technology, the company ensures both the efficiency and superior quality of its products.

Competitive Pricing

With a professional procurement and costing team, we strive to optimize costs while ensuring profitability, thereby offering highly competitive pricing to our valued customers.

Customized Service

Upon receiving your requirements, our experienced engineering team will promptly provide you with comprehensive and optimized customized solutions tailored to your specific needs.

Quality Control

In terms of quality assurance, the company adheres strictly to industry standards and norms, utilizing cutting-edge testing equipment to ensure consistent product quality and maintain an excellent reputation in the market.

Parameter

Basic Parameters	Model Series	TT-SUS8H (Hazardous)/ TT-SUS12X (Explosive Cargo)	ISO 16881
	Load Capacity	8,000 kg/axle (Standard)	SAE J2189
		12,000 kg/axle (Heavy Duty)
	Material Composition	Spring: 51CrV4 Alloy Steel (EN 10089)	DIN 17221
		Bushings: HNBR Composite
		Shock Absorber: 4340 Steel with PTFE Coating
Structural Design	Suspension Type	Parabolic Multi-Leaf Spring with Tapered Ends	ISO 18137
		+ Double-Acting Hydraulic Damper
	Ride Height Adjustment	±50mm Air Assist Leveling (Optional)	ECE R55
	Articulation Angle	±12° Vertical	SAE J670
		±8° Lateral
Performance	Natural Frequency	1.2-1.8 Hz (Loaded Condition)	ISO 2631
	Damping Force	12,000 N.s/m (Compression)	DIN 740
		8,000 N.s/m (Rebound)
	Roll Stability	<3° Body Roll at 0.4g Lateral Acceleration	FMVSS 121
Safety Features	Explosion-proof Design	Non-sparking Fasteners (CuNi2Si)	ATEX 2014/34/EU
		Static Dissipation (<1×10⁶ Ω)
	Emergency Decoupling	ADR 9.2.5 Compliant Breakaway Mechanism	ADR 2023
	Corrosion Protection	Triple-layer Coating: Zn-Al Flake + Epoxy + Polyurethane (1,200h Salt Spray)	ISO 12944
Durability	Fatigue Life	≥1.5 Million Cycles @ 150% Design Load	ISO 12107
	Maintenance Interval	150,000 km or 36 Months (Whichever Earlier)	SAE J2758
Smart Systems	Adaptive Control	Electronically Controlled Air Suspension (ECAS) Optional	ISO 11992
	Sensor Integration	Load/Stress/Temperature Monitoring (CAN-BUS Ready)	SAE J1939
Certifications	International Approvals	DOT HM-206	Global Transport Regulations
		ADR 9.2.3
		GB 1589-2016 (China)

Types of Trailer Accessories

The trailer accessories produced by our company mainly include the following types:

Valve

The Tank Truck Specialized Valve is a critical component engineered to ensure secure, leak-proof, and efficient loading/unloading of liquids or gases in tanker trucks.

Axle

The Tank Truck Specialized Axle is a high-performance component designed to meet the rigorous demands of liquid and gas transport vehicles.

Rim

The Tank Truck Specialized Rims are precision-engineered components designed to withstand the extreme demands of liquid and gas transportation.

Advantages of Trailer Accessories

Reduced Maintenance Costs
While high-quality trailer accessories often come with a higher upfront cost, they more than make up for it by reducing ongoing maintenance expenses. These parts are less prone to premature wear and failure, meaning fewer repairs and replacements.

Compliance with Industry Regulations
Using inferior or worn-out parts can lead to failed inspections, hefty fines, or liability issues in the event of an accident. High-quality trailer accessories are often designed to meet or exceed industry standards, ensuring that your equipment remains compliant.

Enhanced Durability and Longevity

High-quality trailer accessories are built to last. Crafted with superior materials and engineering, these components are designed to endure the demanding conditions of the road. Premium parts stand up to the test, whether it’s rough terrain, harsh weather, or heavy loads.

Improved Safety Standards

Safety is non-negotiable, especially for trailers hauling heavy or valuable cargo. Subpar components increase the risk of failures, such as brake malfunctions, suspension collapses, or tire blowouts.

Performance

High-quality parts don't just improve safety—they also enhance performance. A trailer outfitted with premium components operates more efficiently, leading to smoother rides and better fuel economy.

Installation Steps of Trailer Axles(Trailer Accessories)

1. Gather Necessary Tools and Materials
Before starting, ensure you have all the required tools and materials. These typically include:
● A new trailer axle
● Jack stands
● Hydraulic jack
● Wrenches and sockets
● Torque wrench
● Grease
● U-bolts and mounting hardware
● Safety gloves and goggles

2. Secure the Trailer
Park the trailer on a flat, stable surface. Use wheel chocks to prevent any movement. Lift the trailer using a hydraulic jack and support it securely on jack stands. Ensure the trailer is stable before proceeding.

3. Remove the Old Axle
If you’re replacing an old axle, start by removing the wheels. Then, disconnect the brake lines and any other components attached to the axle. Loosen and remove the U-bolts that secure the axle to the trailer frame. Carefully lower the old axle and set it aside.

4. Prepare the New Axle
Inspect the new axle for any damage or defects. Apply grease to the spindle to ensure smooth operation. If the new axle requires assembly, follow the manufacturer’s instructions to attach the hubs, brakes, and other components.

5. Install the New Axle
Position the new axle under the trailer frame. Align the spring pads with the trailer’s suspension system. Secure the axle using the U-bolts and mounting hardware. Tighten the U-bolts evenly and to the manufacturer’s specified torque using a torque wrench.

6. Reconnect Components
Reattach the brake lines and any other components you disconnected earlier. Ensure all connections are secure and properly tightened. Double-check the alignment of the axle to ensure it’s straight and centered.

7. Install the Wheels
Mount the wheels onto the new axle. Tighten the lug nuts in a star pattern to ensure even pressure. Lower the trailer from the jack stands and remove the wheel chocks.

8. Test the Installation
Before hitting the road, test the trailer to ensure everything is functioning correctly. Check the brakes, lights, and overall stability. Take a short test drive to confirm that the trailer handles properly.

Customization Options

● Material Selection
● Size
● Connection Mode
● Actuation Mode

Packaging and Shipping

Packaging	Polish with wax before shipping. Naked, or according to customer's needs.
Shipping	We will provide you with the best ocean shipping solution to reduce transportation costs and ensure timely delivery of goods.

Our Factory

The production base of Ruiyuan Semi-trailers is located in an industrial park with convenient transportation. The factory area is spacious, and the production equipment is advanced.

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Our Service

Financing Services
A variety of financial services are provided to customers, including vehicle purchase loans, installment payments, etc., to help customers reduce the purchase cost and achieve flexible payment plans.

Technical Support
Comprehensive technical support is provided to help customers understand the applicable scenarios and advantages of different types of semi-trailers, ensuring that their purchasing decisions are reasonable.

Installation and Debugging
Professional installation and debugging services are provided to ensure that all functions of the semi-trailer operate normally, the vehicle meets safety standards, and customers can start using it without worry.

Technical Support and Training
Professional training is provided for vehicle owners and drivers to ensure that the users can master the operation skills and maintenance key points of the semi-trailer proficiently. Ruiyuan also provides regular technical support, including operation manuals, online help, etc., to answer the technical problems encountered by customers during the use process.

Spare Parts Supply
Original spare parts are provided for guarantee. When customers repair or replace spare parts, they can obtain high-quality spare parts produced by Ruiyuan to ensure the performance and safety of the vehicle.

Product Upgrades and Modifications
Ruiyuan also provides modification services for semi-trailers, such as adding additional vehicle-mounted equipment, increasing additional load capacity, etc., to ensure that the semi-trailer meets the changing transportation needs.

Quality Follow-up and Customer Feedback
Ruiyuan will regularly follow up with customers, collect usage feedback, promptly identify potential problems and make improvements to enhance the quality of products and service levels.

FAQ

Q: How do I know what trailer axle I need?

A: Most axles have a weight rating label, typically located on the axle tube. If the label is missing or unreadable, you can estimate the capacity based on key measurements, such as axle beam diameter and bolt pattern. The diameter of the axle beam is a strong indicator of its weight capacity.

Q: What are the different types of trailer axles?

A: Trailer axles can be categorized into three main types; Straight, Drop, and Torsion. Straight axles have a fixed angle and are the most common type of trailer axle. Drop axles are similar to straight axles but are custom-designed to lower the trailer's height for easier loading.

Q: How do axles work on a trailer?

A: If we cut through the technical jargon, a trailer axle is essentially a central shaft that bears the weight of the trailer and its cargo. This shaft is connected to the wheels and facilitates their rotation.

Q: Are trailer axles perfectly straight?

A: There is no standard camber to a spring or torsion axle. However, your axle's curve must make sense for the likely load carried, a predetermined specification of the trailer size you own.

Q: How to determine correct axle position?

A: To know how far back the axle needs to be moved, we want to subtract the trailer's tongue weight from 10 percent of the total weight. Then we will divide this number by the total weight. Then we will multiply this by the distance from the tongue to the axle.

Q: How to tell if trailer axles are bad?

A: Hearing rumbling noises coming from under the vehicle is never a good sign, especially if it happens when you hit a curb or pothole. In most cases, it might be because your trailer axle is bent or broken. Besides rumbling noises, you may also hear bumping, grinding, or clinking noises.

We're well-known as one of the leading trailer accessories manufacturers and suppliers in China. If you're going to buy customized trailer accessories made in China, welcome to get more information from our factory.