TPT September 2022

I NDUS T RY

Olimpia 80 commissions HF tube mill for West African market

Forming (#9 stands) and sizing (#4 stands) sections are engineered to assure the best

OLIMPIA 80 recently installed a new tube mill in Ivory Coast, West Africa. The line was installed and commissioned for a large local company that already produces welded steel pipes. The tube mill is a HF tube mill for carbon steel that covers the range from OD 12mm up to OD 63.5mm and wall thickness from 0.4mm up to 1.1mm and all the related hollow sections. It will include a specific vertical accumulator engineered for high speed and thin strips.

Olimpia 80 recently installed a new tube mill in Ivory Coast, West Africa

cut-off machine, is a cold saw system, high speed and the tube mill can deliver up to 140m/min real max speed. It was successfully tested with the following sections: 25 x 25 x 0.4mm, 30 x 30 x 0.5mm and 50 x50 x0.6mm.

performances and quality for the thin tubes and two motor control the forming area and one motor control the sizing section. The welding section have a system with three adjustable rolls. The tube mill is complete with four turks heads. Before the cut off machine is installed an oiling system for the surface protection was developed. The

Olimpia 80 www.olimpia80.com

EFD Induction celebrates success of Weldac tube and pipe welders

There are also sustainability factors to consider including high efficiency, reduced material usage, improved output power and lower cooling water requirements. These are beneficial for companies that wish to lower their environmental impact. In addition to the welders, EFD Induction is also selling more pre heating equipment. “Painting of pipes after production is something that’s becoming more and more popular,” Mr Lavergren said. “So, the producers need a pre-heater in their production lines. We have a comprehensive range of solutions for this as well – with all the same benefits.” EFD Induction has recently joined forces with induction charging expert IPT Technology. The two companies will soon merge under the name Evolgy. “Yes, we are expanding the scope of our operations even further,” Mr Lavergren said. “Electrification is the future, and we are now perfectly positioned to help our clients find the best technological solutions for them to reach both their production and sustainability goals.”

in our high-frequency welders and we believe we lead the industry in terms of technology and electrical efficiency.” With the new efficient SiC transistors in the high-frequency inverter power modules welding output has been increased. EFD believe that SiC inverter technology gives an efficiency above 91 per cent average – seven per cent more than previous systems and 35 per cent more than vacuum tube converters. The design of the Weldac with SiC inverter modules always indicates the total efficiency from the mains supply to the welding coil terminal. For specific standard setups, the efficiency has been measured to be above 95 per cent, the company added. “In fact, during the testing of the transistors, the inverter efficiency was measured at 99.3 per cent at full output current,” Mr Lavergren added. Along with a constant high electrical power factor – 95 per cent at all power levels – there are substantial cost savings. Particularly important these days, with power prices soaring to previously unheard-of heights EFD said. “The modest extra cost of a Weldac very quickly pays off with the much lower costs during operation,” said Mr Lavergren.

ACCORDING to EFD Induction’s section manager for in-line systems, Morten Lavergren, Weldac tube and pipe welders continue to be popular with customers globally after a number of recent sales. “Recently we have sold six welders to a client in South America and 16 to a major European producer. We have also just sold our first Silicon Carbide (SIC) Weldac in China and have good contracts in Australia,” he said. Mr Lavergren added: “Without a doubt the unique Weldac efficiency plays a key role in the sales. Our design has proven to work extremely well for use

EFD Induction www.efd-induction.com

Morten Lavergren says that Weldac tube and pipe welders continue to sell globally

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SEPTEMBER 2022