Product Introduction
The built-in trailer landing gear is a dedicated parking support system for semi-trailers. Featuring a concealed, embedded design-distinct from external landing legs-it retracts fully within the trailer frame, effectively preventing damage from scraping or collisions during transit.
The main body is fabricated from high-strength welded steel, ensuring robust load-bearing capacity. The lifting mechanism operates smoothly with minimal manual effort, providing stable support for the trailer during parking and cargo loading/unloading. The drive assembly includes protective shielding to block mud, water, and debris, thereby reducing wear and corrosion while extending service life.
With a compact design that does not encroach on external trailer space, the unit is compatible with various trailer types, including stake-side, box, and dump trailers. It offers excellent component interchangeability and facilitates easy installation and maintenance; specifications can be customized based on frame dimensions to meet diverse trailer requirements.
Product Type
- Manual internal landing gear: Hand-cranked; features a simple, low-cost, and easy-to-maintain design; suitable for small-to-medium tonnage trailers and commonly used on standard cargo box trailers.
- Hydraulic internal landing gear: Hydraulically driven; offers fast lifting speeds and effortless operation; suitable for heavy-duty loads and frequent lifting tasks; features high load-bearing capacity.
- Single-stage internal landing gear: Short travel range; compact structure; space-saving; suitable for vehicle models with consistent ground clearance.
- Two-stage telescopic internal landing gear: Two-stage telescopic design; offers a wider adjustment range; adaptable to uneven terrain; highly versatile.
Specifications
| Operation method | Manual crank / Hydraulic drive |
| Configuration | Single-stage or two-stage telescopic |
| Standard load capacity | 20T, 28T, 35T, 40T |
| Telescopic travel | Single-stage approx. 220–280 mm; two-stage approx. 420–550 mm |
| Main body material | High-strength alloy steel |
| Surface treatment | Powder coating or anti-rust paint |
| Mounting method | Welded or bolted to the chassis frame |
| Suitable vehicle types | Box semi-trailers, stake/cage trailers, dump trailers |
✅Features and Advantages
1. Built-in Hidden Design: Stored inside the frame, it is not easily bumped by roadside obstacles, reducing the risk of damage while riding, and has a clean appearance.
2. Strong load-bearing capacity: Made of high-strength steel, it has good pressure resistance, provides stable support under heavy load conditions, and is not easily deformed.
3. Good protection: The transmission mechanism has built-in enclosed protection to prevent mud, water and sand from entering, slow down rusting and reduce failure rate.
4. Easy to operate: The hand-cranked model is simple and reliable; the hydraulic model lifts and lowers quickly and effortlessly, suitable for frequent use.
5. Saves space: It does not protrude from the outside of the frame, does not widen the overall width of the vehicle, and has better passability.
6. Simple disassembly and maintenance: Standardized parts make it easy to inspect and replace components.
We are a specialized manufacturer of semi-trailer components, dedicated to the R&D and production of a comprehensive range of parts, including internal landing gear, trailer support legs, axles, suspension systems, and springs. Our factory is equipped with complete machining, welding, and testing facilities, ensuring strict quality control at every stage of production to deliver products that are durable, reliable, and capable of handling heavy loads. We offer both standard off-the-shelf products and non-standard custom solutions with a stable supply chain. Committed to quality, we provide excellent pre-sales selection guidance and after-sales support, striving to offer cost-effective component solutions to trailer manufacturers and auto parts distributors.
Hot Tags: trailer with built-in landing gear, China trailer with built-in landing gear manufacturers, suppliers, electric landing legs, electric trailer landing gear, hydraulic landing gear for semi trailers, Semi trailer with Built in Jack, semi truck trailer landing gear, Truck Built in Jack
