We are presently also on the market for air duct making machine, such as auto duct production line, lock forming machine, shearing machine, flange forming machine, bending machine etc.
 
The application of this kind machine is: Air duct manufacture in industries of central air conditioning, ventilation duct, muffler, dust project, oil insulation, purification system etc.

Asymmetric three roller bending machine
 
Introduction
asymmetric 3 roller bending machine (plate rolling machine) is adapted to processing metal sheet of 2.0mm thickness, and the length of the sheet should be within 2000mm.It is extensively applied in ventilation piping, petroleum piping, heat preservation, and dust palliative.
 
Features
Compact design
High operating comfort
Easy removal of scales (covers)
Easy assembly and commissioning
Very easy revision
Hydrostatic drives
All rolls can be positioned by hydraulic cylinders
Precise control of roll position
Emergency stop safety system
Commissioning, instruction and training is ensured by specialists
 
Specifications

Model	Max roller plate thickness (mm)	Max roller  plate width  (mm)	Plate yield limit (mm)	Min roller plate dia.  (mm)	Upper roller dia. (mm)	Lower  oller dia.  (mm)	Main Power (kw)	Weight  (kg)	Diamen -sion (L*W*H)  (mm)
W11G -2*1000	2	1000	245	100	72	72	1.5	220	1500*550 *1000
W11G -1.5*1300	1.5	1300	245	100	72	72	1.5	244	1800*550 *1000
W11G -1.5*1530	1.2	1530	245	100	72	72	1.5	272	2100*550 *1000