Tolerance is±0.5mm, diagonal line tolerance is ±0.8mm. The feeding frame can be set as per customer's requirement. The duct manufacture line can automatically cut metal according to customer's requirement. So the metal sheet and the labor can be drastically reduced. duct manufacture line is offered at a good price. The Auto-line which includes Pittsburgh lock machine, folder machine is highly efficient. Duct manufacture equipment is especially suitable for a medium sized duct factory.
The work flow: coiler--material feed --leveler grooving roller--shear.