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The Klingelnberg GmbH product range currently comprises: spiral bevel gear cutting
machines for the small and mid series; spiral bevel gear grinding machines; worm
and thread grinding machines; gear measuring and inspection machines and sub-
Liebherr Vezahntechnik GmbH was established in 1952 in Kempten, in the Allgaü region
of Southern Germany, and is renowned as a world leader in the design and manufacture
of CNC gear-
Klingelnberg AG mainly provides spiral bevel gear manufacturing solutions to the automotive industries with a range of cutting, grinding, lapping and dynamic testing machines. In addition they produce electrical measuring technology (vibration testing) and bevel gear cutting tool grinding equipment. Klingelnberg AG has developed from a former business sector of the Oerlikon Bührle, an internationally renowned machine tool company, and has owned the famous Maag gear company since 1988.
The Sigma Pool is a strategic partnership which was established in 1991 between,
at that time, the four major European gear machine and equipment manufacturers: Klingelnberg
GmbH, Liebherr Verzahntechnik GmbH, Maschinenfabrik Lorenz GmbH and Oerlikon Geartec
AG. The joint marketing partnership was established in order to provide better services
to clients and to strengthen their existing market position and the partnership
has, without doubt, been a complete success story since its inception. SInce the
formation, the Lorenz and Oerlikon companies have been taken over by Liebherr and
Klingelnberg respectively. The Group provides not only the complete range of gear
/ spline cutting, shaping, grinding and measuring equipment, but also full training
programmes, consultation, planning, service and sub-
The Sigma Pool Group constantly strives to bring new developments and technology to manufacturing and engineering in order to maintain its position as the leading force in the Global gear industry. A brief summary of some of the technology available is detailed below:
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