TPT July 2010

T echnology U pdate

Portable machines for facing and boring

HSB machines from Protem are designed to bevel, face and counter bore tubes and pipes at high speed, required when time and efficiency are crucial – especially in the oil and gas industry. Fully hydraulic – starting with the inside clamping system, the tool holder rotation and the feeding of the tools – the machines can be used either in the workshop as prefabrication PFM, or in the field as bevelling tools for high quality orbital welding. They will perform repeatable high quality welding geometry preparations from standard steel pipes to the most developed ones such as stainless steel, duplex, super duplex and others. The machines are easily transportable and it is possible to insert them into the tubes to be bevelled with their lifting bracket. This can be done while two inside profile tracking tool holders rotate simultaneously on the tool holder plate to perform the bevelling, facing and counter boring, if required, at a very high speed on any oval pipe, leaving a root face at a constant width. Several models are available ranging from 6" to 60". Serco’s on-site machining units are

positioned and locked by means of a column/arm system resting on the outside diameter of the part to be machined, allowing internal machining. Machine installation is quick and easy. After a first visual positioning, using a simple device, a parallelism and concentricity within a 0.01mm precision can be achieved. A powerful air motor dries the tool rotation (hydraulic motors on request) and radial

automatic feed, with a choice of two speeds. The Serco range of portable products includes machining equipment, boring and surfacing machines, surfacing machines, grinding machines and lapping machines. Protem GmbH – Germany Fax: +49 7247 9393 33

Email: info@protem-gmbh.de Website: www.protem-gmbh.de

Serco TU600+RTJ

Weld head calibration becomes obsolete DESPITE orbital welding technology having passed the 50-year milestone, many orbital welding users are frustrated by the old- technology analogue controls used in many orbital weld heads, which constantly require calibration. According to John Emmerson, president of Magnatech, LLC, the industry has demanded that current digital technology replace older analogue technology controls, to maximise ‘arc on’ productivity and eliminate needless calibration. Electronic technology has made great advances in quality, performance and size reduction. Magnatech has recognised that digital technology must be integrated into the orbital welding marketplace, and has introduced a new line of enclosed autogenous orbital weld heads that use 100% digital technology. The company’s new 800 Series weld heads incorporate digital encoder drive motors, eliminating the need for weld head calibration. New construction techniques make the 800 Series cost effective, simple to field service, and engineered to be extremely durable. An ‘over-close’ collet clamping system and exclusive ‘full exchange’ water cooling system allow for true 100% duty cycle. Magnatech LLC – USA

Email: info@magnatechLLC.com Website: www.magnatechLLC.com

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J uly 2010

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