TPT November 2009

T echnology U pdate

ROLLFORM Equipment Pvt Ltd, India, manufactures equipment for tube and pipe production. The company has been a pioneer in the production of NC flying cold saws, and has supplied more than 25 cold saw systems to various customers across the world, including Europe. Rollform has a technical tie-up with Manfred Olk Technical Consultants, Germany, for the design and development Flying cold saws

The saw blade drive is mounted on a slide, guided on linear motion system. Feeding of the saw blade is performed by an AC servo motor via quick-release safety coupling and ball screw spindle. Feeding speed is NC controlled and related to the progress of the cut. The AC servo motor installed as saw blade drive due to its very high speed can be fitted with HSS-type or tungsten carbide saw blades, depending on the size and material to be cut. Different saw blades require different cutting speed, and the AC servo motor provides a wide range of rpm. The weight of the moving carriage is kept to a minimum by the use of special aluminium alloys. The cold saw is provided with foolproof protection systems, including adjustable hydraulic shock absorbers and saw blade breakage against power failure. The new range of cold saws range from 10mm to 114.3mm OD and up to 6mm wall thickness, at speeds up to 120m/min. Rollform Equipment Pvt Ltd – India Fax: +91 120 2542073 Email: info@rollformindia.com Website: www.rollformindia.com

The metal saw cut-off system can handle all types of products/tubes – circular, square and rectangular sections. The synchronisation with mill speed is achieved with the use of a brushless AC servo motor control system for fast response time. The saw blade drive is mounted on the carriage, and is executed as backlash-free gearbox with incorporated saw blade shaft and flange mounted speed adjustable AC servo motor.

of equipment. The software for the operation of the cold saws is also developed by a German company.

 NC flying cold saw from Rollform

High-speed cutting

REIKA, Germany, has announced an increase in sales of high-speed cutting centres for precise steel and stainless steel tubes. The machines are used to produce automotive parts as well as parts for in-house technology and the furniture industry. The combination of chipless cutting and chip forming cutting on the same machine is the basis for flexibility and low tool cost. Easy machine operation and short change over times are guaranteed by standard Siemens CNC control and quick

changing tool systems, and optimising software for scrap reduction is available as an additional benefit. The high-accuracy parts produced on the machines are suitable for the bending, forming or swaging processes, which can be directly interlinked to the cutting centres. Reika GmbH & Co KG – Germany

Fax: +49 2331 969036 Email: info@reika.de Website: www.reika.de

 Reika manufactures high-speed cutting centres

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N ovember 2009

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