Door hinges are critical connecting components installed between truck or trailer doors and the vehicle body. They achieve the opening and closing of the door through a pivot structure, bear the weight of the door panel, and ensure smooth and safe opening and closing.
Hinge Materials
In logistics and transportation vehicles, door hinges must not only possess sufficient mechanical strength and wear resistance, but also withstand corrosion from harsh environments such as wind, rain, mud, and chemical media. Therefore, selecting appropriate materials and design structures is crucial for extending the overall service life of the vehicle.
Stainless Steel
- Excellent corrosion resistance and rust prevention;
- Suitable for refrigerated trucks and vehicles in high-humidity environments;
- Smooth surface, attractive appearance, easy maintenance, and long service life.
Aluminum Alloy
- Lightweight, contributing to vehicle weight reduction;
- Rust-free and highly weather-resistant;
- Commonly used in wing trucks, light trailers, and special-purpose vehicles.
Galvanized Steel
- High strength and good toughness; the most common and economical material;
- Galvanized surface treatment prevents oxidation and rust;
- Suitable for general dry cargo trucks, delivery vehicles, and other light-duty applications.