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  • Air duct plate bending machine
  • Air duct plate bending machine
  • Air duct plate bending machine
  • Air duct plate bending machine
  • Air duct plate bending machine
  • Air duct plate bending machine

1.25 mm | VENTIrounder

Article: 00121158

Air duct plate bending machine

NEW:
The RAS VENTIrounder is now also available with even rear rounding rings. This allows rounding outside duct cheeks without scratching the visible material surface.

The application: Air ducts
The RAS VENTIrounder for the air duct production solves all these problems. It easily rounds sheet metal elbow cheeks with pre-formed Snap Lock or Pittsburgh seams. The result are perfectly rounded inside and outside elbow cheeks.

The starting situation
The production elbow parts for air ducts starts with a rollforming process. This operation seams the blank and creates one part for the lock. This happens usually on a lockforming machine, for instance the RAS SpeedySeamer. In the second step the internal and outside elbow duct cheeks will be rounded on the requested radius.

Here a rounding machine comes into play. Traditional rounding machines use one part rolls. Since the part comes with the rollformed seam, traditional rounding machines can offer only some poor and costly compromises. Setting the rolls to the seam thickness results in poor radii. Stronger settings will damage the seam and in the long term also the rolls. Two remedies are known. Inserted metal strips, keep the seam open but must be manufactured separately and often can be used just once. Reusable mats must be produced also separately and need to be adjusted to the width of the elbow cheek.

Specifications

  • Applications: air duct

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In this category | In this category, (RAS Reinhardt Maschinenbau)

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