TPT November 2012

Tube and pipe mi l ls

Advances in equipment design: universal forming and cassette stands

load than the conventional stand configuration. The position of the four rolls can be individually adjusted and the position of the cassette can also be adjusted, which allows for easy adjustment of the pass line height. As the four rolls are contained within a cassette, when it comes time for a size change all of the cassettes are changed at the same time. The cassette changeover is conducted automatically and typically takes 10 to 15 minutes with no operator involvement. When the changeover is complete the motorised roll positioning equipment, in conjunction with the HMI screen and the menus and recipes, positions the rolls at the predetermined optimum position for each product. Kusakabe Electric & Machinery Co Ltd – Japan

screen with its menus and recipes. The positioning of the rolls is driven to the predetermined optimum position for each product. The forming section using universal tooling requires no rolls to be changed; the position of the rolls are adjusted to suit all the diameters to be made. The Kusakabe universal forming is designed so that the strip is easily visible as it progresses through the forming process. This makes it easy for operators and engineers to see what is happening in the forming process. The forming flower used to shape the pipe minimises the work hardening while providing for the ideal edge presentation for HF welding. The fin passes are cassette stands and typically consist of three-, four- roll stands where two of the rolls are driven in each stand. This design allows for a very strong stand plus the added strength of the cassette results in considerably lower distortion under

KUSAKABE Electric & Machinery Co Ltd of Japan, a leading pipe and tube mill manufacturer, is continually developing, innovating and improving the design and manufacture of pipe and tube mills for the international market. From API, oil, gas and structural to automotive and general engineering applications, Kusakabe can supply the whole mill or individual pieces of equipment to meet your production requirements. All of the equipment is designed and built in Japan to exacting Japanese standards and workmanship. The forming section of the OG&S mills is made up of an entry guide, the universal forming section followed by the patented cassette style fin pass section. The universal forming section includes the breakdown passes and all the forming up to the fin pass stands. Size changes are fully automatic and controlled by the motorised roll positioning equipment in conjunction with an HMI (human machine interface)

Email: sales@kusakabe.com Website: www.kusakabe.com

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N ovember 2012