Hydraulic seam closing machine can be usedwith duct forming line, TDF roll formingmachine, and Pittsburgh lock machine. Theideal duct connection includes a united jointand the right-angle side works out seams ofhigh quality without the help of anotherauxiliary connecting tool. The process doesnothing to hurt the surface of the workpiecewith low noise.The finished seam is close,even, and effective. Plates in differentthicknesses are workable and can be finishedquickly and safely.

Advantages of this hydraulic lock closing seaming machine are that sheet sealing is tight, smooth, fast and safe. All lock seam closing machines include vertical hydraulic, pneumatic and electric lock seam closing machine. As a necessary part of all ventilation air pipe forming machines, the hydraulic sheet metal lock seam closing machine can be operated with other HVAC duct forming machines together to complete a whole duct production, such as TDF flange forming machine, pneumatic TDF sheet metal folding machine, grooving machine, Pittsburgh lockformer machine, electric sheet shearing machine, clips shearing machine, etc.