Fin-Wall Corrugated Tanks of the International Standard for the First time in India
Made on Forming line from of Germany
Manufacture of Fin-Wall Corrugated Tanks
Backed by long, multi-faceted expertise in sheet-metal fabrication, MPP Technologies have set up a new
unit in Tumkur near Bangalore to manufacture corrugated tanks for transformers. MPP is the sister
concern of TTP
Technologies the largest unit for Transformer Radiators in the world. The plant is equipped with a
high-capacity CNC forming lines manufactured by Heinrich Georg of Germany (2 numbers), world leaders in
this
specialized field. The heart of the machine is the hydraulic fin folding unit, which can be programmed for
specified widths and lengths, with varying corrugation depths. The production is continuous, starting
with cold-rolled steel strips decoiled from rolls loaded on an expanding mandrel. The fin folding
operation is combined with cutting and edge bending and a strip welded to reinforce the edges welded to
the frames. The corrugated walls are seam welded and a strip welded to reinforce the edges welded to the
frames. Spot welding of the embossed sides gives extra strength to the sides (optional).
The corrugated walls are assembled into tanks by welding these to upper and lower frames. After
shot-blasting to remove all loose particles and contaminants, the tanks are finished with a special
primer and finish for long-lasting corrosion resistance. The finished tanks are ready for incorporating
the active parts straightaway.
Testing
MPP corrugated tanks are manufactured to stringent DIN specifications, with quality assurance
procedures in place at every stage. Tests are carried out to ensure that the tanks are leak-proof,
capable of being hermitically seated.
Advantages of Corrugated Tanks
Because of the high thermal efficiency in heat dissipation, the fin-wall corrugated tanks require
around 30 percent less steel for construction. The volume of oil required is also correspondingly
less. The compact construction can save floor-area space by more than 40 percent. These advantages
result in significant overall savings and make corrugated tanks the preferred choice for transformer
manufacturers, as compared to conventional types.
