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2021Investment into 2 redundant cooling devices and freshwater treatment plant with hyperfiltration and EDI
2020To respond market requirements for diamond coating of microtools GCT starts production with 7. Coating device
20196. Coating device starts its operation
2018GCT Celebrates 15-Years Anniversary
Re-certification according the requirements to ISO 9001:2015 through TUEV SUED Management Service GmbH
Launch of diamond coating layer MicroSpeed Plus and of diamond coated router with chip breaker and drill point
2017In June new operation rooms increases the production and office area around 44%. 
In November our 5th diamond coating facility starts operation.
2016Start of operation of a new diamond coating facility und several devices for optimized process control with overall investment of 1.4 Mio. Euro 
Launch of diamond coated single flute end mill
2015Re-certification according the requirements to ISO 9001:2008 through TUEV SUED Management Service GmbH
Introduction of an alternative system to improve the energy efficiency regarding SpaEfV
2014Launch of MicroSpeed coated thread mill and chamfering tool for aluminium and copper IMS
Additional sales partner for China/Shanghai area and South Korea
2013Launch of GCT MicroSpeed multilayer diamond coating
Launch of MicroSpeed coated tools for thread milling in technical ceramics
2012Launch of diamond coated end mills with two flutes and centre cutting tip geometry
Certification regarding ISO 9001:2008
2011Launch of diamond coated drills and routers with thicker diamond coating for the mechanical processing of technical ceramics and CFRP, CFP, GRP
2010Start of production in April 2010 with 3 diamond coating facilities; the investment is 3.5 Mio Euro
In the 2nd quarter 2010 the turnover increased by 60 % compared to the 1st quarter 2010
2009EXTRAMET AG is main shareholder of GCT GmbH
Investment in own diamond coating production in Weingarten
Launch of diamond coated end mills with two flutes and of router with extra fine spiral cut
2008Market development in Asia through sales partners in Taiwan and Korea
Launch of diamond coated drills in Europe
Obtain DIN EN ISO 9001:2000
2007    CemeCon AG is main shareholder of GCT GmbH
Launch of diamond coated routers in China and USA
2006Global marketing of diamond coating routers in Europe, Asia and USA
2005Use of diamond coated GCT router in mass production in Europe
2004Cooperation agreement with EXTRAMET AG
2003Foundation of GCT GmbH in Weingarten in July 2003 and start of tool production in Uhingen
Cooperation agreement with CemeCon AG
Josef-Bayer-Str. 3, 88250 Weingarten
Tel.: +49 751 - 50 91 58 0
Fax: +49 751 - 50 91 58 99