ProNews_1_06_EN.pdf - Kemppi

More documents

Recommendations

Info

” Significant cost savings can be achieved just by power savings. Precise arc control Do you need a welding machine for workshop use next to a welding table or for heavy-duty shipyard conditions, fitted with a 50-metre long extension cable You can rest assured that Kemppi has provided the solution you are looking for many times before. Kemppi engineers have designed the Kemppi Pro Evolution welding system to be digitally operated, so that, when welding at long distances, the extension cables used can be as light as possible. The system only requires a 3-cored copper connection cable for data transmission between the power source and wire feeder. This feature allows the arc to be accurately controlled using a lightweight cable set, which is easy to carry. Power-efficient alternative Kemppi Pro Evolution power sources have a power factor of 0.93, which makes them considerably more power efficient than other products in the same class. Due to their outstanding efficiency, Kemppi power sources are as much as 30% more power-efficient than those of many competitors. Significant cost savings can be achieved just by power savings, when the machine is used for years at numerous welding sites. For example, the power requirement for a 420-ampere Kemppi Pro Evolution welding machine at 400 amperes and an arc length of 36 volts is just 27 amperes per phase. Exceptional performance The Kemppi Pro Evolution impresses with its performance. Even the smallest power source in the series is a serious powerhouse. The Kemppi Pro Evolution 3200 delivers 320-amperes with a 100% duty cycle. Attention should be given to the fact that the maximum voltage capability for Kemppi Pro Evolution 3200 and 4200 power sources is the same. Due to the high voltage capacity and outstanding duty cycle performance, the 320 ampere 3200 power sources have enough capacity to provide full welding power even when using long extension cables. Lightweight and compact All Kemppi Pro Evolution power sources are the same size. Kemppi Pro Evolution power sources are smaller and considerably lighter than many other, similar machines. The small size and light weight of the machine allows greater options for mobility and easy mounting at welding sites. • 6 Kemppi ProNews 1 • 2006
Text: Pirjo Pöllänen. Photos: Daewoo Shipbuilding & Marine Engineering Co. Ltd CASE DSME trusts Kemppi Pro Evolution One of the largest shipyards in the world, Korean DSME (Daewoo Shipbuilding & Marine Engineering Co. Ltd) chose Kemppi Pro Evolution. “The easy selection of welding parameters on the wire feeder control panel, the small and lightweight power sources, easy to mount on a single transport cart and, of course, Kemppi’s equipment support and advice were the decisive factors,” explains project engineer Christian Werner. Another important factor for the shipyard was the fact that four wire feeders could be operated with a single power source. Located on Geoje Island in Korea, the DSME shipyard specialises in the construction of freight and tanker vessels, but also has a major presence in the passenger liner industry. The size of the shipyard is indicated by the sheer number of employees: some 1,500 specialists work in engineering and R&D, while over 10,000 professionals are involved in the actual construction of vessels. The shipyard completes approximately 200 vessels each year. Kemppi Pro Evolution – application framework German IMG (Ingenieurtechnik und Maschinenbau GmbH) designs and manufactures production systems for the shipbuilding industry. IMG delivered the first automatic girder welding machine to the DSME shipyard in 1995. Ten years later, a second automat was developed, as a new and different technical platform required a lesser degree of welding mechanisation. In terms of welding technology the automats are much the same, with both using Kemppi technology. Kemppi Oy Service Technician Jani Vestola has served as technical support in Korea at the DSME shipyard since installation and start-up of the welding automat. He describes the purpose of the automat by explaining how girders are welded in a ship hull as follows: ”An approximately 20 metre long and over 10 metre wide sheet is lying on the work surface. 15–20 upright beams or girders are pre-tacked to this,” he explains. The system is designed precisely for use in tacking. The actual welding of beams is done by means of submerged arc welding. The welding automat has 43 guns, 21 of which are in front and 22 behind. The automat has eleven Kemppi Pro Evolution 3200 power sources, and in each tacking phase welding is done with eleven guns simultaneously. Four Promig 501 wire feeders, which are operated according to the programmed phasing, are connected to one Kemppi Pro power source. In the first phase guns 1–5 in the front row and 1–6 in the back row are in use. In the second phase guns 6–11 in the front row and 7–11 in the back row are used. In the third phase guns 12–16 in the front row and 12–17 in the back row are in use. In the fourth phase guns 17–21 in the front row and 18–22 in the back row are used. • Kemppi ProNews 1 • 2006 7
Page 1 and 2: Kemppi customer magazine 1/2006 EN
Page 3 and 4: Kemppi ProNews updated EDITORIAL Yo
Page 5: Photos: Julian Hickman, Blueharbour
Page 9 and 10: Text: Antti Syrjä, Quality Manager
Page 11 and 12: Text: Ari Kangasmäki, Sales Direct
Page 13 and 14: Text: Pirjo Pöllänen IN CO-OPERAT
Page 15 and 16: welded. The machine has a welding b
Page 17 and 18: New dimension in TIG and MMA weldin
Page 19 and 20: The Little Giant of Welding MinarcT
Page 21 and 22: easily avoided and welding applicat
Page 23 and 24: ”The competitors had great team s
Page 25 and 26: Photo: Aker Yards Kemppi - The Joy
Page 27 and 28: CERN facts: The award was presented
Page 29 and 30: Kemppi receives prestigious interna
Page 31 and 32: Kemppi Oy Subsidiaries Kemppikoneet

ProNews_1_06_EN.pdf - Kemppi

Create successful ePaper yourself

Delete template?

Save as template?