Building lifter widely applies to such contruction sites as industrial and civil architecture, bridge, underground, large chimney, and ship industry, etc. It suits the vertical transport of materials and personnels and also suits such different occasions as warehouses, high towers, etc. The lifter has such advantages as steady property, safety, reliability, flexible carrying, and good adaptability, etc. Improves working efficiency, and can reduce workers' working intensity. Our construction elevators' capacity are 1 ton, 2tons, 4tons etc with single cage and double cages.