cold form grades of carbon steel, two grades of stainless steel and corrosion resistant steel. Throughout production in-process monitoring is reinforced by SPC stations, at which operators carry out dimensional and profile checks to predetermined sample plans. With a current total of 17 European Technical Approvals


final product testing has inevitably become a critical, not to say significant investment, activity for MKT. So much so that the company expects to start construction of a completely new testing house in Spring 2011. One reason for that investment reflects MKT’s rare status as one of only three fixings manufacturers to have approval confirmed according to the Deutsches Institut für Bautechnik (DIBt) general technical approval Z-21.3-1906, for an anchor system capable of withstanding dynamic loads. Developing the MKT Injection System VMZ Dynamic required a “very substantial investment” in the equipment, a hydraulically controlled rig standing some three metres high, required to carry out tests lasting for up to four days. Currently shoehorned into the existing testing room the dynamic testing rig, which exerts sustained tension on the anchor from all different directions, will take its place in the new testing house, close to MKT’s Hall 4, which in addition to housing the company’s warehouse and logistics operation has training and seminar facilities. When it comes to travel the Injection System VMZ is already


an experienced globetrotter. 11,600 M20 versions of the VMZ anchor carry the load of the armoured concrete ceiling in the two 5.8 kilometre long Clem Jones road tunnels, 60 metres below and ten metres into the bedrock beneath the Brisbane River, in Australia. ‘Down under’, in every respect, MKT has proven its credentials here with a product designed to create the equivalent of undercut anchor security using chemical technology – effectively combining the benefits of bonded and


tunnel applications including fixing rails, pipe clamps and cable channels, or tracks in the ICE passage between Munich and Nuremburg; during the construction phase of the Gotthard tunnel in Switzerland; and in the Schloßbergtunnel, Heidelberg. Seats and railings in some of the most prestigious sports stadia in the world also owe their security to MKT. They include the FIFA World Cup Stadium in Kaiserlautern, one could say MKT’s home ground; but also the Berlin Olympic Stadium; and in Abuja, Nigeria the National Stadium Complex. From the Mercedes Benz Museum in Stuttgart, to the ABC Tower in Bonn, and an Abu Dhabi Mosque, MKT anchor systems have also fixed natural stone facades. Once again the opposite side of the world MKT anchors were used in the construction of the Beijing Metro. “Often, of course,” says Stefan Weustenhagen, “because MKT supplies the reseller, we do not hear the final destination for the anchor systems we are despatching every week to all parts of the world.” Wherever its products do come to be


used one thing is clear; MKT is without question today firmly established amongst the, perhaps, ten or twelve fixings technology manufacturers capable of meeting the needs of the construction industry across the globe.


expansion anchors for both cracked and non-cracked concrete applications. The galvanised steel, A4 stainless steel or high corrosion resistance steel threaded stud features a series of conical expansion elements, which when combined with a two component injection resin, provide extremely high load bearing capacity even at minimum edge distance and spacing. The VMZ system holds European Technical Approval ETA-04/0092 for a torque controlled bonded anchor in diameters from M8 through to M24. The DIBt approval for dynamic loads applies to the MKT Injection System VMZ Dynamic in galvanised steel sizes 100mm M12, 125mm M16 and 170mm M20. The 125mm M16 version is also available in highly corrosion resistant steel for outdoor applications and tunnels. MKT anchor systems have also been used in European


www.fastenerandfixing.com 41


MKT Injection System VMZ used in Clem Jones tunnel - seen under construction left


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