duct machine, press brake, plasma cutting machine, shearing machine

Q: What are the differences between spiral duct machine model FHNR-1400 and FHR-1600?

A: The max diameter of FHR-1600 is 1600mm, while the FHNR-1400 is 1400mm.
FHR-1600: different forming heads were required for different diameters.
FHNR-1400: different forming strips were required for different diameters.

Advantage of FHR-1600: The time for changing and adjusting different forming heads is faster. The duct diameter is more stable. But its price is higher than FHNR-1400.