TPT March 2024

INDUSTRY

Fast speed punch cut-off for US-based conduit tube mill commissioned A HIGH-SPEED punch cut-off from Kusakabe has been successfully commissioned and is now in operation in the US. The cut-off is part of an electrical conduit tube mill that has been installed in a leading electrical conduit tube manufacturer in the US. The maximum line speed is 1,100ft/min at 10ft in length, which is considerably higher than 800ft/min, which was achieved before installing this new tube mill at the Chicago, US-based plant. To achieve these extremely high production speeds, the most critical component of the tube mill is the cut-off. Kusakabe has a variety of cut-offs for this purpose and the high-speed punch cut-off is the one selected for this application. The die set weight is light because it is comprises of carbon fibre material and, thanks to such a light weight, 1,100fts/ min has been achieved in a stable status. In addition, the punch cut method is unique and is not a traditional blade reciprocating method.

Kusakabe offers a wide range of efficient cut-off machines

The blade, which is mounted with the main shaft that is rotated by the electrical motor, rotates and cuts tubes that are located on the rotating path. This unique blade rotation mechanism has enabled the punch cut-off machine to cut 110 cuts/min because cutting cycle time can be drastically shortened. The blade profile has been specially design for dimple free cutting, which is generally a mandatory feature for conduit tube production lines.

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