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GGP August 2017

88 M A C H I N E R Y www.ggpmag.com August 2017 It features a highly flexible cutting module, capable of machining almost any shape of profile. This also has the capacity to switch between profiles without changing tooling. The ProfteQ twin or quad welder brings this same focus on flexibility to profile welding, delivering a 90° weld externally or internally or standard 45° joint. “ProteQ is a FOM-GS Group partner and it’s brought a similarly innovative approach to welds,” says Lee. “The flexibility it delivers is key. 75% or more fabricators dual-source, so having the scope to seamlessly switch between profiles makes it a highly innovative solution. “This combined with a welding platform that adds to standard welding capacity makes it a brilliant platform for anyone entering the market.” ETL welds are pitched by Promac as a solution for the internal or external welding of windows. This focus on a single side rather than dual butt-weld means that joints are said to retain a high weld-strength – just 5% less than a standard 45° joint. “You get the appearance of a traditionally jointed window without impacting on weld strength. The trade off is that we would argue that its one side or the other. “If you want the very best timbertype aesthetic in a PVC-U window Timberweld is it,” says Lee. “You get a 90° joint inside and out and it looks great. One downside is that the process is protected and you do need a licence for it. “There’s also a compromise on weld strength because you’re welding less of the window, although use of a thermal insert, for example RCM, would go some way to addressing this.” Promac again offers a manufacturing platform, this time in the form of the Urban miller with different cutters and a special Urban welder with two or four heads, which has the capacity to simultaneously weld all four corners at 90°. “It’s about where you pitch the product. If you’re doing limited numbers but at a high premium, the finish is exceptional. “It’s not really a high volume solution, although you can increase it by switching from manual milling to CNC milling. “The Kruba CNC, for example, significantly reduces milling The ProfteQ machining centre and ProfteQ timber look window time, and is can process eight bars simultaneously.” The Kruba 6024 CNC machining centre also delivers a major advantage, in that in common with the ProfteQ’s External/Internal TimberLook machining centre, it allows fabricators to work different systems. Seamless welds “It’s a bigger investment but the Graf SL4FF seamless corner weld is in a class of its own for weld strength,” Lee continues. “The zip-weld technology creates an incredibly strong joint and also an exceptional finish in volume manufacture.” Launched in 2014, the SL4FF has been singularly influential in driving this reshaping of the market. Pre-cleaning to exacting tolerances then zip welding the corner joint whilst controlling the flow of sprue, its development has gone hand-in-hand with the increased demand for foils. The SL4-H FF is the latest addition to the SL4FF family, introducing a new capability to insert welded transom and mullions into a seamlessly welded frame or sash. “The H-Weld represents an important step forward in the technology, improving adaptability, capacity and efficiency, which are key in volume production,” says Lee. “It’s not going to be the right machine for everybody because of its footprint and because it’s a sizeable capital investment. “If you’re doing the volume and you want to manufacture a premium product it is, however, phenomenal in what it does in terms of efficiency and finish.” So are the days of the ‘standard’ high volume 45° weld numbered? “We sell machinery for standard welds and I’m sure we will continue to do so,” says Lee. “Premium and traditional or timber-type effect welds are, however, taking a consistently growing share of the market and I can’t personally see that changing. “The market is there – homeowners know about it and for any fabricator, being able to access that is going to be increasingly important going forward if they’re to remain competitive.” ProfTeq quad vertical machine


GGP August 2017
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