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.

Five veins and seven veins grooving machine
 
Introduction
This kind bending grooving machine is the most widely-used and traditional machinery applied in the manufacture of ventilation pipes. It can greatly ensure the precision and accuracy during the working process. This kind grooving machine has reasonable weight, convenient transportation and is suitable for different working environment. All rollers and bearings adopt excellent steel processed by advanced heat treatment technology (quenching), which enhances wear-resistance for the machine.
 
Features
1, Panel reinforcement special equipment
2, Maximum thickness: 2000mm
3, Maximum width: 2500mm
 
Specifications

Name	Model	Sheet thickness (mm)	Sheet width (mm)	Power (kw)	Weight (kg)
5 Thread	B-1.2*1300	1.2	1300	1.5	350
	B-1.0*2000	1.0	2000	2.2	480
	B-1.2*2000	1.2	2000	2.2	600
7 Thread	B-2.0*2500	2.0	2500	3	1300