TPT May 2010

W elding T echnology

Boiler pipe preparation where space is at a premium

THE BRB 4 series from Orbitalum Tools, developed for boiler applications with the lowest space availability, makes precise welding preparations possible using optimal torque, together with low weight. While processing boiler pipes, the ability to change quickly from one pipe to another is required. With the new BRB 4 Pneumatic/Auto with pneumatic tension, the machine is precisely centred in the pipe and pneumatically clamped or released. The BRB 4 Pneumatic/Auto is suitable for series processing, for example in heat exchanger applications. In the future, there will be two different clamping systems available: Standard or ‘NC’. The new NC clamping system, with its clamping wedges firmly anchored in the mandrel, is suited to applications where no foreign bodies may enter the inside of the pipe or a container. The NC clamping

system provides extra safety, particularly for vertical use. The Standard clamping system is established as stable and reliable, and continues to be available to order. The machines are constructed modularly. The company offers five different machine kits for selection as auto, pneumatic and electric variants, depending upon the field of application. Depending on the machine kit, the inner pipe diameter can be processed in a range from 19.1 to 110.8mm (0.752" to 4.362"), with a maximum outer pipe diameter of 114.3mm (4.5").

The BRB 4 from Orbitalum Tools

The BRB 4 is ideally suited to pipe wall thicknesses between 2 and 15mm (0.079 to 0.59"). The speed range of the electric motors as well as the gears were optimised for the higher chamfer requirements. The drive is available in both voltage types: 110V, 50/60Hz; and 230V, 50/60Hz. The new brass brush attachments prevent chips and other foreign bodies from unintentionally falling into the inside of the pipes. This attachment is particularly useful for vertical work on containers. The brushes can be mounted quickly and easily on the threaded spindle of the new BRB 4, and all brushes can be used for both clamping systems. With the patented Quick-Tool-Change (QTC ® ) from Orbitalum Tools, the user is able to change tools quickly and easily. The integrated multifunctional tool has two to four cutting edges and a high-performance surface coating that prevents wear and tear. Pipe-ends made from unalloyed, low- alloy and high-alloy steels, with a high percentage of chromium and nickel, can be processed quickly, cost-effectively, and precisely. Orbitalum Tools GmbH – Germany Fax: +49 77 31 792 500

Email: tools@orbitalum.com Website: www.orbitalum.com

Boiler pipe processing with BRB 4

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M ay 2010

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