Looking for high-quality trailer parts including trailer landing gears and trailer rims? As core components of semi-trailers, landing gears and rims directly determine the vehicle’s operational safety, load-bearing capacity and overall efficiency. CIMC Equilink, a one-stop semi-trailer parts supplier, offers premium, durable landing gears and rims with standardized design and excellent performance, matching all mainstream semi-trailer models. Below is a detailed product introduction.

Semi-Trailer Landing Gears: The "Support Backbone" of Semi-Trailers

Trailer landing gears (landing legs) are indispensable front-end support components for semi-trailers, bearing the full weight of the trailer when separated from the tractor, enabling smooth hitching and unhitching. Its structural design is simple but its functional role is critical, with strict operational specifications to ensure safety.

1. Core Structural Components

The trailer landing gear is composed of five key parts, with a compact and sturdy structure for stable load-bearing:

• Two-speed gearbox

• Support sleeve

• Support rod

• Transmission screw (with crank handle)

• Support plate

2. Main Classification by Operation Mode

Landing gears are divided into two mainstream types according to the control mode, adapting to different operation needs and working scenarios:

• Single-acting landing gears: Independent operation on left and right sides, equipped with two crank handles and one gearbox per leg; flexible operation, suitable for complex ground conditions with uneven left and right bearing surfaces.

• Linkage landing gears: Synchronous operation on both sides with one rocker, composed of one side with a gearbox and one side without; high operation efficiency, realizing one-key synchronous lifting and lowering, suitable for flat ground and standardized operation scenarios.

3. Key Lifting Principles & Operational Specifications

Equipped with a precision screw lifting mechanism and two-speed gear adjustment, the landing gear adapts to height adjustment and load-bearing requirements, with strict operational norms to avoid mechanical damage:

• Two-speed lifting: Insert the crank handle for high-speed lifting (for empty load height adjustment); pull out the handle for low-speed lifting (for load-bearing operation).

• Load-bearing operation rule: When the support plate touches the ground and the landing gear bears the trailer’s weight, only low-speed gear can be used for lifting and lowering; high-speed gear operation is strictly prohibited, otherwise the lifting mechanism will be damaged and safety hazards will occur.

• Core function: Realize free adjustment of the semi-trailer’s height, ensuring smooth connection and disengagement with the tractor, and stable parking of the unhitched trailer.

Semi-Trailer Rims: The "Running Foundation" of Semi-Trailers

Trailer rims (steel rings) are the core components for mounting and supporting tires on the wheel periphery, forming the complete wheel with spokes. They bear the vehicle’s load and road impact during driving, and their material and performance directly affect the trailer’s running stability, fuel efficiency and safety. Rims and spokes can be designed as integral, permanently attached or detachable structures, matching different tire models and load requirements.

Aluminum Alloy Rims: High-Performance Upgrade Option

On the basis of traditional steel rims, CIMC Equilink offers high-quality aluminum alloy rims with outstanding comprehensive performance, which are the ideal upgrade choice for high-efficiency, energy-saving and safe transportation. Its core advantages far exceed ordinary iron rims:

1. Energy saving & consumption reduction, excellent heat dissipation

Reduce the overall vehicle weight and wheel rotational inertia, improve the vehicle’s acceleration performance and reduce braking energy consumption, thus cutting fuel costs; the lightweight design also reduces the vehicle’s load loss and improves the effective cargo capacity.

2. High operational safety, low failure rate

The thermal conductivity of aluminum alloy is 3 times that of steel and iron, which can quickly dissipate the heat generated by tire friction and braking into the air. Even for long-distance high-speed driving or continuous downhill braking, it can keep the tire and rim at a reasonable temperature, effectively reducing the tire blowout rate and avoiding braking efficiency reduction caused by high temperature.

3. Super load-bearing capacity & structural strength

The load-bearing capacity of aluminum alloy rims is 5 times that of ordinary iron rims; the forged aluminum alloy rim only deforms 5cm after bearing 71,200kg, while the ordinary iron rim deforms 5cm only after bearing 13,600kg, with far superior structural strength and compression resistance, adapting to heavy-duty transportation scenarios.

4. Beautiful appearance & long service life

Aluminum alloy has better fluidity and ductility in the high-temperature liquid state than steel rims, and can be processed into various beautiful and diverse shapes through polishing, electroplating and other subsequent processes; the surface is treated with anti-corrosion and electrostatic powder coating, which is resistant to rust, wear and aging, and remains as good as new for a long time.

CIMC Equilink: One-Stop Supplier of Premium Trailer Parts

Backed by strong R&D and production strength, CIMC Equilink not only provides high-quality trailer landing gears and trailer rims, but also offers a full range of semi-trailer core parts to meet the one-stop sourcing needs of global customers, including:

Axle, suspension, leaf spring, air tank, tire, relay valve, rope tightener, spare tire lifter, tie rod, traction pin, vehicle lights and more.

We adhere to strict quality control standards for all products, with stable performance, reliable quality and perfect after-sales service, and have won the trust of numerous customers in the global transportation industry.

Get Your Trailer Landing Gears & Rims Quote Today

If you have any inquiries about trailer landing gears, trailer rims or other trailer parts, or need customized product solutions, please contact us through the following channels:

• Email: info.equilink@cimc.com

• Official website: http://www.cimc-equilink.com (for more product details and inventory information)

CIMC Equilink – your trusted partner for reliable, high-performance semi-trailer parts, guarding every mile of your transportation!

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