WIRE 2012
Big is more than just beautiful
EWMenn GmbH has shipped the largest flat-die thread roller ever designed and built at the South Westphalian manufacturer’s facility to Schraubenwerk Gaisbach GmbH (SWG) Production. Weighing in at 42 tonnes the new Model GW 161-HX is used for producing extra long screws used in the construction fastener industry.
T
he machine incorporates innovative new design elements that have resulted in a very “operator friendly” and easy handling machine. EWMenn highlights that particularly noteworthy features of the new model include the new
Crash Recovery System as well as a newly designed Feeding System for extraordinarily long products. “If you want to sell screws you should know how screws are
made.” These words are attributed to Reinhold Würth and explain why in addition to distributing screws he decided to enter into screw production in 1958. The production department in the basement of the original Adolf Würth OHG was the beginning of today´s Schraubenwerk Gaisbach GmbH & Co. KG, better known as SWG Production. The company has existed independently under this name since 1967. The business relationship with thread rolling machine
manufacturer EWMenn is as old as SWG itself. It is a quite close relationship that Reinhold Würth mentions in the chronicle issued on occasion of SWG’s 40th
anniversary. In this chronicle
he describes how he explored the market and personally visited the “home of the fastener industry”, the Siegerland and Ruhr regions of Germany prior to entering into the manufacture of fasteners. In the end he purchased his first thread rolling machine from EWMenn. The relationship has expanded over many years and now 45 thread rolling machines at SWG carry the EWM logo initials. In late 2010 yet another EWMenn machine was delivered to SWG, literally taking the cooperation with SWG Production to an even higher level. The new GW 161-HX is the largest machine EWMenn has built in its almost 100 year history. And it arrived to SWG Production just at the right time.
Special fasteners – an increasingly important segment Today SWG Production produces approximately 11 million
pieces or 70 tonnes of screws – per day! The development of self-drilling ASSY woodscrews was a breakthrough for SWG Production. Even today this type of fastener from the German Hohenlohe area represents a benchmark for the industry. SWG Production has achieved a technological advantage in producing specialised fasteners for wood construction. These screws are
Hall 15 Stand E42
used for reinforcement and connection of wooden construction elements. Lengths can exceed 1,000mm in diameters between 3mm and 14mm. This segment of the market has assumed increasing importance for SWG Production. Keeping up with production technology by finding more efficient
solutions presented quite a challenge. The requirements for higher output rates and shorter setup times required taking action. Plant manager Mathias Blinzinger says: “Of course we have had production machines for these long parts before the GW 161-HX, but some processes were not thought out well enough.” This includes, according to Blinzinger, the feeding
146 Fastener + Fixing Magazine • Issue 73 January 2012
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