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The Heidenhain CT 2501 is part of the Heidenhain CERTO series which features incremental length gauges for measuring stations and multipoint inspection equipment with a very high system accuracy down to ±0.03 µm. The CERTO series harnesses special materials with low thermal coefficients of expansion.
The scale is made of Zerodur, while the plunger and holder are made of Invar. This ensures high measuring accuracy over a wide temperature range. The ball-bearing guide is specially matched to meet the high accuracy demands placed on the CERTO length gauges. The bearing and plunger are fitted so as to eliminate play during guidance, thus ensuring exceptional measurement accuracy. The gauging forces of the motorized CT 2501 length gauges can be adjusted in three levels on the controller and remain constant across the entire measuring range.