Your Professional Trailer Landing Gear Supplier
Our goal is to become your reliable partner in the alloy wheel rims in China. Shandong Liangshan Shengxiang Machinery Parts Co., Ltd., is a leading enterprise nationwide in various types of trailers, port equipment, and other machinery. We are committed to applying advanced manufacturing technologies and strict quality control standards to every product. Our products are quality-assured, making us a dependable choice for long-term cooperation.
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![Trailer With Built-in Landing Gear]()
Trailer With Built-in Landing GearThe built-in trailer landing gear features a concealed mounting design that saves external space and minimizes the risk of accidental impact or scraping. Constructed from high-strength steel, it...
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![Hydraulic Trailer Landing Gear]()
Hydraulic Trailer Landing GearThis hydraulic landing gear for semi-trailers is constructed from high-strength steel, offering excellent load-bearing performance. Hydraulically operated for effortless lifting and lowering, it...
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![External Trailer Landing Gear]()
External Trailer Landing GearExternal trailer landing legs—also known as outboard trailer supports—are critical load-bearing components for semi-trailers. Forged from high-strength steel, they feature an external gearbox...
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![Trailer External Landing Legs]()
Trailer External Landing LegsThese external trailer landing legs are mounted on the exterior of the trailer chassis; they support the front end of the semi-trailer when detached from the tractor unit, ensuring stability...
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![Electric Outrigger]()
Electric OutriggerAn electric trailer landing gear is a support device powered by the vehicle's electrical system that utilizes an electric motor or hydraulic drive to achieve automatic lifting and lowering; it is...
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![External Outrigger]()
External OutriggerThese externally mounted trailer landing legs are installed on the outer side of the trailer's main beam and feature a manual gear-driven mechanism. They support the trailer after it is uncoupled,...
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![Trailer-mounted Landing Gear]()
Trailer-mounted Landing GearFeatures a linkage drive mechanism, single-handle operation, and synchronized lifting of left and right legs, making drop-and-hook operations efficient and labor-saving. Designed with a two-speed...
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![Trailer With Builtin Landing Gear]()
Trailer With Builtin Landing GearThese trailer landing legs feature an internal gear drive mechanism housed within the leg casing—eliminating the need for an external gearbox—and are designed to support semi-trailers during...
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![Hydraulic Trailer Landing Legs]()
Hydraulic Trailer Landing LegsHydraulic trailer landing gear designed for heavy-duty support; features hydraulic lifting for effortless operation. Constructed with a high-strength steel body and premium seals to prevent oil...
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![SX28T Heavy-Duty Linked Trailer Landing Gear]()
SX28T Heavy-Duty Linked Trailer Landing GearOur brand‑new SX28T heavy‑duty trailer support legs are made of premium Q235 carbon steel. It is fitted with a 19‑inch dual‑speed crank handle for easy operation. The multi‑channel composite...
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![Electric Towing Outrigger]()
Electric Towing OutriggerThis electric landing gear is specifically designed for semi-trailer tractors to replace traditional manual crank-operated legs. Featuring one-touch electric operation, it offers simple,...
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![Built-in Trailer Support Legs]()
Built-in Trailer Support LegsDesigned with heavy-duty applications in mind, these integrated support systems prevent tipping, protect tires during long-term storage, and ensure safe loading/unloading operations across diverse...
Why Choose Us
Production Equipment
Our company is equipped with advanced production equipment, including CNC lathes, milling machines, fully automatic welding machines, hydraulic system assembly tables, and specialized equipment for axle and suspension processing. This enables us to precisely meet the processing and assembly needs of products such as support devices and hydraulic outriggers.
Quality Control
Our quality control system is equipped with tensile testing machines, hardness testers, and load-bearing testing benches, allowing for full-process inspection of raw materials, semi-finished products, and finished products. All equipment has undergone extensive real-world testing to ensure stable and reliable operation. This system efficiently supports mass production and customized processing, guaranteeing product quality meets actual operating conditions.
Customized Solutions
We can provide customized solutions based on customers' vehicle models and load-bearing requirements to meet their individual needs.
Our Services
We have established a rapid response mechanism, providing warranty repair and parts replenishment services to promptly resolve any usage issues.
Safe uncoupling and coupling
The landing gear supports the trailer at the correct height. This allows the truck/tractor to smoothly back up, latch onto the kingpin, and drive away without causing mechanical or structural damage.
Prevents tipping
By establishing a wide, grounded base, the landing gear prevents the trailer from pitching forward or backward, significantly improving worker safety during loading and unloading.
Structural protection
During cargo operations, heavy machinery (like forklifts) frequently shifts weight across the trailer. Landing gear distributes this weight load evenly, minimizing vibrations and shocks that could otherwise warp the floor and tear the trailer frame
Independent stability
It acts as a set of sturdy legs, allowing a parked semi-trailer or travel trailer to stand completely independently without a tractor attached
Terrain and dock leveling
Adjustable landing gear makes it easy to level the trailer on uneven ground or adjust the front-to-back height to perfectly match the level of a warehouse loading dock.
Specification of Trailer Landing Gear
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Parameter |
Details |
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Load Capacity |
140T (static), 50T (lifting) |
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Lifting Range |
39-51 inches |
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Material |
High-strength carbon steel |
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Operation Type |
Hydraulic + manual crank backup |
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Base Design |
Flared, non-slip |
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Corrosion Protection |
Powder-coat + galvanized finish |
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Net Weight |
68 kg |
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Mounting Type |
Weld-on / bolt-on compatible |
Superior load-bearing capacity handles heavy trailers without flexing or failure. Dual-operation system (hydraulic + manual) ensures usability during power outages. Wide flared base distributes weight evenly, preventing sinking on soft surfaces. All-weather resistance withstands rain, salt, and extreme temperatures.
Precision-engineered hydraulic cylinders deliver smooth, controlled lifting/lowering. Reinforced steel tubes with 0.2-inch thick walls enhance structural integrity. Acme screw mechanism reduces friction for effortless operation and long service life. Strict quality control includes load testing at 120% of rated capacity.
Types of Trailer Landing Gear
Hand-driven landing gears: This type of landing gear requires operation from both sides of the trailer. The operator has to crank each landing gear leg separately, a time-consuming procedure, but it ensures high-level accuracy on non-level terrain.
Linkage landing gear: A linkage landing gear system allows operation from one side of the trailer. A connecting rod links the crank to both landing gear legs, ensuring they move simultaneously when the crank is rotated. This design improves efficiency by reducing effort and saving time during deployment and retraction.
Hydraulic landing gear: Hydraulic landing gear devices drive the landing gear leg up and down with hydraulic power. These systems are generally faster than manual and require less physical labor. They are commonly found on tow trailers which are heavier, or in situations where fast connection and disconnection are required.
Pneumatic landing gear: Pneumatic landing gear systems use compressed air to operate. They are analogous to hydraulic systems in terms of user-friendliness and speed, but instead of using the trailer air supply.
Key components of Trailer Landing Gear
Landing gear foot: The landing gear foot, also known as the landing gear shoe or pad, is the bottom-most part of the landing gear that makes direct contact with the ground. It is developed to share the load of the trailer over the road base evenly and is durable on various road surfaces.
Landing gear crank: The landing gear crank is a manual mechanism used to extend or retract the landing gear. Typically located on the left side of the trailer, it allows the operator to raise or lower the front of the trailer when coupling or uncoupling it from the tractor.
Landing gear transmission rod: The transmission rod links the crank handle with the box inside the landing gear legs. It translates the rotational motion from the crank to the internal gears and subsequently lifts or lowers the landing gear.
Landing gear mounting plate: The mounting plate serves as a strong foundation that secures the landing gear assembly to the trailer frame. Designed to withstand operational forces, it ensures the landing gear remains firmly attached while supporting the trailer’s weight.
Other Service of Trailer Landing Gear
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Package |
Wooden box |
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Shipping |
Sea/Express |
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Payment |
We accept T/T and L/C. For samples or small trial orders |
As one of the leading trailer jack manufacturers and suppliers in China, we warmly welcome you to buy discount trailer jack made in China here and get pricelist from our factory. For price consultation, contact us.
