TPT March 2012

T echnology N ews

Orbital cut flying cut-off Meccanica Adda Fer has introduced the third evolution of the flying cut-off for pipes up to Ø16". The machine is designed for the low saw cut of round, rectangular and square tubes, and it enables the achievement of very high line speeds, cut quality and output through the use of multiple heads. with the other available two, it is possible to double the autonomy of the line between changes of saw. The system also allows the use of very small diameter saws with a small contact area and friction with the tube, with a great economy of the consumption of the cutting tools. A system of universal vices allows the operator to work the all of the range that is expected from the machine with only two sets of jaws for round, rectangular and square tubes. Line-up pipe clamps DWT offers internal line-up pipe clamps that offer fast and accurate adjustment, no tag weld is needed, avoid oval pipe problem, can be used for pipes with different wall- thickness and offer a precise axial adjustment. The welding quality in pipeline construction is crucial and has to fullfil worldwide standards, certified by international authorities. Companies like Norske Veritas have set It can work simultaneously with two or four heads optimising the cut times, depending on the dimensions of the tubes to be cut. Working with only two heads, alternating

The machine is an orbital type, meaning that it is made of a rotating structure on a large diameter ball bearing, where the saw heads are placed. The very solid heads allow the use of small diameter tools; every head is composed of a speed reduction gear with gears that are case hardened, and hardened with bath lubrication and driven by a servomotor. The radial feed movement for each head is controlled by a servomotor through a ball screw, and the sliding takes place on ball shoes. Heads are placed inside the rotating structure, protected from chips, coolant and from the liquid carried by the tube. Outside, in the cutting zone, only mandrel ends are visible and accessible with cutting tools. The feeding of the rotating part is made by a cable chain that winds the rotating part on which an appropriate support is obtained. The whole rotating unit is mounted on a support fixed structure that is integral with the translator carriage; all is made in sized electro welded steel structural work. On this structure a rotating unit is fixed and controlled by a servomotor that, through a gear motor and a pinion, provides the rotation of the structure with cutting heads while checking the progress. A guide system of the incoming tube, made of a horizontal and vertical cage composed of rolls that are adjustable with a screw system in order to adapt them to the various pipe sizes, allows the driving of the tube in the incoming vice.

up guidelines, to avoid defects and therefore environment and health risks, by use of the best pipeline equipment. Very important is the choice of the correct internal line-up pipe clamp for weld preparation, to compensate tolerances of pipe manufacturers and to avoid edge misalignment during the welding process. Internal line-up clamps are the most frequently used alignment equipment nowadays, because they provide full access to the weld seam during the entire welding process. DWT GmbH – Germany Website: www.dwt-gmbh.de

Internal line-up clamp from DWT

Meccanica Adda Fer Srl – Italy Email: info@addafer.it Website: www.addafer.it

Original Quality to a Modular Design ... Follow the leader in bulk goods handling, dust-extraction and ventilation plants

Visit us at Tube 2012 March, 26th-30th Düsseldorf, Germany hall 3, booth E46 EUROTUBI/JACOB

The QUICK CONNECT ® pull-ring makes the acclaimed Jacob modular pipe system even more economical for installation. In new plants for animal feed, pharmaceuticals, chemicals, food, glass,

• Straight welded, lipped-end pipes and components. • ø 60 mm to ø 800 mm in a standard range. • Larger diameters / special requirements upon request. • Larger than ø 350 mm also available with flange connection. • Powder coated steel or hot-dipped galvanised steel as well as stainless steel. • 1- 3 mm wall thicknesses. • Shock-explosion certified pipes and components available. • Up to ø 400 mm normally dispatched immediately from stock.

semiconductors or environmental techno- logy as well as for upgrading existing layouts user-friendly system installation becomes precise and easy due to the great versatility of mass-produced pipe components.

Fr. Jacob Söhne GmbH & Co. KG Germany Phone +49 (0)571 95580 www.jacob-pipesystems.eu

EUROPE’S NO. 1 IN MODULAR PIPEWORK SYSTEMS – Used in all industrial sectors

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M arch 2012