Sectional garage doors are a kind of electric garage doors. It is easy to use, high-end appearance, and colors can customized according to the architectural style, which is very popular among users.
The door panel is double-layer composite color steel plate, and the side of the door seals with galvanized steel plate. The appearance is a checkered style.
The door panel fills with high-density polyurethane foam material, the metal plate and the polyurethane foam material tightly combine, and the insulation layer has no holes, forming a stable, high-strength and light-weight sandwich integral structure.
The surface of the door panel presses with a box, and the surface treats with an orange peel pattern, which has a relief effect.
The track adopts anti-falling wheel design, 1.5mm thick galvanized steel plate (reinforced 2.0mm), one-time forming.
The structure of the roller consists of nylon + balls. The inside of the roller seals with imported bearings, and the outer layer is die-casted with white nylon. It is highly wear-resistant, anti-aging, and has a long service life.
The garage door torsion spring designs according to the weight and height of the door body, and the specific configuration implements according to the torsion spring design table. The torsion spring is made of 72B spring steel wire (82B or 60Si2Mn material can be customized).
The lower end of the door leaf and the joint between the track and the wall are equipped with sealing rubber strips. The rubber strips are highly resistant to aging, environmental protection, cold resistance, and will not deform after long-term use, and can effectively resist the erosion of wind, sand and rain.
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