round hvac welded spiral duct machine

The spiral duct machine is a machine for producing spiral ducts. Spiral duct is also called spiral bite-slit thin-walled duct,

Spiral duct is a thin-walled tube made of metal strip coils into a spiral seam. It is round, non-welded, air-tight, and water-tight. It is mostly used for air supply and bulk material transportation, instead of traditional white iron pipes (ie manual Bite seam iron pipe). It is a kind of air duct, the full-mechanism straight pipe does not need to be beaten by hand.

1) Good product matching and high standardization;

2) Strong airtightness;

3) The ventilation loss is small; the ventilation noise is small, and the round pipe is better than the square pipe.

4) Convenient factory inspection;

5) Anti-balanced external pressure (negative pressure) program;

6) Material province;

7) Easy installation, few connection points, small installation space and low installation cost.

8) The overall layout of the installation is beautiful and the grade is high.

9) Convenient for daily maintenance and cleaning.

10) The section has a small wet circumference, low resistance along the way, and less energy loss.

11) Fully mechanical processing, no secondary processing is required for one-time molding.

12) Using plasma cutting, the pipe diameter is highly accurate.

13) It adopts four methods: reducing diameter socket, sleeve interconnection, flange interconnection, and strap interconnection, making the installation more convenient.

14) The external insulation quality of the pipe is better than that of the rectangular duct.