Product Introduction
The linkage-type landing gear is a specialized support component designed for semi-trailer drop-and-hook operations. Utilizing a linkage transmission mechanism, it enables the synchronous raising and lowering of both legs via a single handle; this eliminates the need to operate each leg individually, thereby effectively saving time during drop-and-hook procedures.
The unit features a two-speed gearbox, allowing for rapid lifting and lowering when unloaded and slower, high-torque operation under heavy loads. Constructed from high-strength alloy steel, the outer casing offers robust load-bearing capacity, structural stability, and impact resistance. The reliable linkage system is durable and resistant to damage, making it compatible with various semi-trailer types-such as box, stake, and skeletal trailers-and ideal for logistics hubs requiring frequent coupling and uncoupling operations.
Product Type
1. By gear speed
- Two-speed type: Features high and low gears; allows for rapid lifting when unloaded and reduced effort when heavily loaded; ideal for high-frequency trailer switching operations.
- Single-speed type: Simple structure and cost-effective; suitable for light-load, low-frequency use.
2. By gearbox structure
- External gearbox: Easy to maintain and highly versatile.
- Internal gearbox: Protected against impacts and debris (mud/sand); suitable for complex road conditions.
3. By load capacity
- 28 tons: Standard for general freight trailers.
- 35 tons: Heavy-duty reinforced model.
4. By foot type
S-type and A-type feet; optional oversized, anti-slip support pads available.
Specifications
| Rated load | 28t / 35t (per pair) |
| Extension stroke | 420–480 mm |
| Cylinder material | Q345B high-strength alloy steel |
| Speed | Selectable dual-speed or single-speed; synchronized lifting via linkage mechanism |
| Feet | S-type or A-type; enlarged anti-slip pads available as an option. |
| Surface treatment | Electrophoresis/powder coating (anti-corrosion) |
| Installation | Flange welding; universal trailer mounting holes. |
| Total weight per pair | 80–90 kg |
Key Features & Advantages
1. Linkage design with single-handle operation ensures synchronized lifting on both sides, offering high efficiency for drop-and-hook operations.
2. Dual-speed gear options: rapid lifting when unloaded and effortless operation under heavy loads.
3. High-strength Q345B steel housing provides superior load-bearing capacity and durability.
4. Electrophoresis and powder coating finishes ensure excellent rust and corrosion resistance.
5. Universal flange mounting interface allows for convenient installation and removal.
6. Optional anti-slip foot pad ensures stable support.
Shandong Shengxiang Machinery Parts specializes in the manufacture of semi-trailer chassis components, primarily offering trailer landing gear, suspension systems, and axles. As a direct manufacturer, we ensure strict quality control and offer a comprehensive range of specifications with stock readily available. We support customization and provide complete after-sales service; inquiries and partnership opportunities are welcome.
Contact: WhatsApp +8613053761159
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