Industrial overhead sectional door

Hongfa overhead sectional doors are widely used for applications such as high insulated doors for the LEED institutional projects, security doors (police, military installations, detention centers), sectional doors for the mining industry (iron, nickel, diamond etc.), airport hangar doors and rust resistant doors for the marine or corrosive environments.

Industrial sliding door with molded inner and outer doble steel door surface coating polyester high temperature treatment, the middle filled with polyurethane insulation, door thickness of 40-50mm, solid, insulation, thermal insulation, dust-proof, wind-resistant, rail adoption galvanized steel sheet strengthened external torsion spring balance system life of more than 50000times, there are both internal and external seal-tight manner, frost, moisture, heat insulation.

Security: door is equipped with an airbag bounce apparatus and infrared sensing function, when the encounter resistance or obstacles, door safty device will automatically rebound, avoid pedestrians and vehicle damage.