Firma Friedrich Kocks

Hermann Moltner

Hans Dieter Gerhards

Hans-Dieter Gerhards

An improved rolling mill capable of both stretch reducing tubes having relatively small external diameters and of reducing tubes having relatively large external diameters is provided having a plurality of successive roller stands some stands having small roll diameters and other stands having large roll diameters, the said other stands having large roll diameters being arranged to follow, in the direction of rolling, the said some stands having small roll diameters so that said other stands are at the exit end of the rolling mill.

Rolling mills

A stretch-reducing rolling mill is provided for selectively producing tubes of circular or angular configuration, such as a square, is provided in the form of a plurality of driven roll stands arranged in two groups, one at the entrance end being equipped with three roller stands and a second at the rear or exit end being arranged to use either three or four roller stands optionally, said first group of stands being driven by a common drive train separate and independent of the drive for the second group.

Growing community of inventors

Dusseldorf-Oberkassel, Germany

Hermann Moltner