TDC Trans-verse Flange Duct System

TDC unit is one of the tow universal flange making systems in the word.It can save time and material drastically with its welspeal,strong and durable joint structure.So it is specially suitable for producing a duct with a large sectiobal area.Today many famous buildings in the world utilize this kind of structure in the ventilation system such as the Ameiican Kennedy Space Center,Guangzhou CITIC Plaza etc.The unit consists of a feeding frane,main forming machine and a shearing unit, which includes grinder and hydraulic shearing unit.The hydraulic shearing unit makes fixed cutting available with very little burr,and may be operated automatically with a maximum work speed of 6m/min,lt is divided into four types:T-20,T-30,T-35,T-40 with their corresponding duct corner T-20DC,T-30DC and T-40DC.

TDC made by SJR may match and produce all the ducts in the Dw144 standard,and has passed the HVAC  PW/TWI(1987)pressure test,which is a speciality test for the intensity and sealed condition of a duct.