African Fusion June 2016

Welding and cutting

New all-in-one multi-process inverter

lows users to plan which material grades to choose for which jobs, make ferrite number calculations, determine the level of heat input for a specific grade, select filler material and get help. There is full information on welding parameters; gas-shieldingmixtures,maxi- mum interpass temperatures and post- weld heat treatments. All calculations and recommendations are designed to help operators and planners ensure good weld metallurgy is being achieved in the weldment, while maintaining optimum material properties. “We believe the newSandvikWelding app to be the most comprehensive avail- able today, providing welding engineers with a vast amount of informative data and practical functions – created tomeet customers’ weldingneeds inahandy form right to their phone or tablet,” explains Clemente Tallarico, Sandvik’s global product manager for welding. www.smt.sandvik.com “The inverter benefit also applies to generators as its current draw is less on a generator, making for better fuel efficiency; and, depending on the size of the generator, the ability to run more machines off the same generator.” The Multiarc 350 offers easy transi- tion between MIG, TIG and FCAW weld- ing processes and is recommended for carbon steel, alloy steel and stainless steel applications. Added advantages include a built-inwire feeder with a dual drive system and quick polarity change when welding gasless flux-cored wires. “Multi-processmachines arebecom- ing increasingly sought-after because manywelding jobs combine twoormore processes in the same joint, for example TIG for the root and fill, followed by gas assisted flux-cored wires for capping,” notes Bester. Inverters also producemore refined arc characteristics, according to Bester, which has a direct impact on weld qual- ity. In addition, the Multiarc 350 weighs approximately half of its rectifier coun- terparts, which significantly enhances the mobility of the unit. “This is a huge advantage, in that the unit canbemoved fromworkshop to site, and so the job is not limited to one area, such as a production line. “Renttech SA can also offer custom- ers product expertise and full service backup on this unit,” Bester concludes. www.renttechsa.co.za

R enttech South Africa is pleased to introduce awelding solution to their customers which ‘ticks all the boxes’ when it comes tooperational andenergy efficiency. The Uniarc Multiarc 350 Compact multi-process inverter is a robust, light- weight unit that offers customers an easy transition between multiple weld-

well as cost-saving advantages.

“The Multiarc 350 represents highly efficient inverter technology, which draws 30% less current than traditional rectifiers,” says Johan Bester, welding product manager at Renttech South Africa. “The multi-process capability essentially allows for one machine to do the work of two or three machines, providing further operational efficien- cies and cost benefits.” Another significant benefit is that the unit is generator-compatible, while meeting all mining safety specifica- tions. The dual voltage of 380 and 525 V enables flexibility on a min- ing operation, be it workshop or plant, without the risk of dam- age to PC boards. “Being generator-compat-

ing processes, bringing new levels of versatil- ity to the end-user, as

ible makes the unit suitable for customers who have been forced to install generators in their workshops to ensure continuity in their produc- tion process. Traditionally ma- chines that did not have this safety feature would have encountered damaged PC boards and components from typically older genera- tors that did not supply con- sistent power to themachines,”

The Uniarc Multiarc

350 Compact multi- process inverter from Renttech is a robust, lightweight unit that offers customers an easy transition between multiple welding processes.

explains Bester.

New welding app launched at Tube 2016 A n innovative welding app was launched on the Sandvik stand at and tablets from the App Store for Apple and Google Play for android devices. Built with ease of navigation, the app

Tube 2016, specifically designed to meet welding professionals’ requirements when planning and performing welding projects. The app, Sandvik Welding, is availableand free todownload for phones

brings extensive information to hand for welding engineers, welders, specifiers, project engineers and owner operators. Brimmingwith useful technical data it al-

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June 2016

AFRICAN FUSION