The length of a typical Dongguan spiral duct
is 3 ~ 6m, while the length of a typical rectangular duct is only 1 ~ 1.5m; and only one joint is needed to connect two spiral ducts, while the traditional spiral duct connection is often A completely independent double flange system is required.
The production of spiral duct accessories (pipe fittings and joints) has been highly automated, systematic and has industrial quality control. The installation time of the spiral duct system is only 1/3 of the similar rectangular duct.
Pressure reduction: As we all know, the wind resistance of spiral duct is much smaller than that of rectangular duct.
Precision bite molding process: The molds used in imported equipment are all special steel structures. Even after three or five years of use, the surface of the pressing mold remains unchanged, which makes the surface of the galvanized steel sheet not damaged and greatly prolonged. Spiral duct life, meanwhile the joints are even and flat, the mouth is tight, the connection is strong, and the seal is good. Dongguan spiral air duct
series equipment, the newly developed roll-screw spiral duct machine uses hydraulic roll-shearing method to cut, making its cut flat and without burrs. The cutting process is non-sparking, noise-free and safer. The use of fixed molds makes the pipe dimensions more accurate and uniform, and the process of air duct processing is more stable and rapid. It is more convenient to change the molds of different sizes, and then adjust the angle of the thin steel plate flange ventilation ducts. The angle is adjusted by electric means, which is flexible and accurate. The hydraulic system is used to complete the operations of material transportation, biting, cutting and turning, with high degree of automation.