TPT May 2008

T echnology U pdate

Versatile sawing centres for flexible production

RSA, Germany, has launched two new sawing centres that aim to start a trend in the pre-production of tube and sections. The sawing centres are ideal for specialisation in product quality, and enable a transition to flexible production. The variety of workpiece shapes and materials is increasing, and restrictive quality specifications require high production knowledge. RSA’s new sawing  The new Rasacut SK sawing centre cuts, deburrs and cleans tubes from 20mm length

centres complement its existing range of products, and as a result six types are now available. Each sawing centre meets specific demands, but with a flexible design that facilitates the processing of a wide spectrum of workpieces for optimum production. The Rasacut SK sawing centre was developed for high precision and high performance cutting and deburring of short tubes from 20mm in length. In view of such short lengths, the handling of the tubes and the complete, reproducible deburring represents a particular challenge. RSA presents a process-reassured solution that improves operating sequence and quality, not only during sawing, but also during deburring. The use of high performance brushes provides advantages over the usual vibratory deburring. The sawing centre can also be expanded, with modules for checking and cleaning.

RSA has also developed the Rasacut XXL sawing centre for cutting tubes and solid bars up to 170mm diameter. Previously, this dimensional range was the domain of band saws. According to customers using this new circular saw, cutting time is reduced by up to 90 per cent compared to modern band saws. In addition, the quality of the cut surface has improved in relation to perpendicularity and surface roughness. The sawing centre can consist of modules for deburring, checking, cleaning, and stacking. RSA GmbH & Co KG – Germany Fax : +49 2351 995 300 Email : pr@rsa.de Website : www.rsa.de RSA Cutting & Deburring Systems Ltd – UK Vallourec & Sumitomo Tubos do Brasil (VSB) has ordered a new PQF ® (Premium Quality Finishing) seamless tube plant from SMS Meer, Germany. The new, state-of-the- art tube plant will have an annual capacity of 600,000t and be primarily used for the production of seamless OCTG (Oil Country Tubular Goods), with diameters up to 16". The plant, to be built in the state of Minas Gerais, Brazil, is scheduled to start production in 2010. SMS Meer will supply all the key components of the mill equipment for the PQF plant, including the media systems and the technological automation. The scope of supply also includes project management, supervision of erection and commissioning, and training of operating personnel.  The Rasacut XXL is a circular saw for workpiece diameters up to 170mm. A robust, intelligent sorting system is available for solid bar sections Fax : +44 1952 580511 Email : rsa.gb@rsa.de Website : www.rsa.de Latest order for PQF seamless tube plant

Machines for tube grinding and polishing

Sibo snc, Italy, specialises in the manufacture of automatic and semi-automatic, mechanical and CNC machines, to grind, satin and polish tube, bars, flat surfaces and profiles. The machinery can handle products made from stainless steel, iron, aluminium, brass and other materials. The company’s 2LU models allow the user to satin/grind straight and curved tubes, with round and oval section. Depending on the requirements, the company supplies

different machines to work items with diameters from 5mm to 200mm. It is also possible to equip some models with a device to work with water. The SSP/300 machine is able to grind/satin flat or slightly curved surfaces, for pieces with a maximum width of 300mm and height of 150mm. A special version – 2SSP/300 – is available, featuring two heads, allowing a belt for rough

 Sibo’s LDT/2500 can polish round and oval tubes up to 2,500mm long

machining to be mounted on the first head, and a belt for finishing on the second. The machine works both with dry and wet systems, while there is an option to use either a fixed belt or a swinging belt. The company supplies the LSP/400 to polish/grind plates, for pieces with a maximum length and width of 300mm and maximum height of 150mm. The LDT/100 and LDT/2500 machines are suitable for polishing round and oval tubes of lengths up to 1,000mm and 2,500mm (respectively). Sibo can also supply customised machines, based on specific customer requirements. SIBO snc – Italy Fax : +39 0323 837 597 • Email : sibo@sibo.it • Website : www.sibo.it

48

M ay 2008

www.read-tpt.com

›