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The base of a presetter or measuring machine is that part of the system upon which all other subsystems and components are mounted or installed. The material for this foundation is very critical. This is especially the case when the equipment has to be used on the shop floor and not in a climate-controlled room or equivalent. The equipment must quickly adapt to its environment without any loss of accuracy and precision. Since 1968 ZOLLER has exclusively used a special light alloy of greater tensile strength than for example gray cast iron. Further, light cast alloy is able to uniformly accommodate temperature variations quickly and evenly. As opposed to granite, light cast alloy has the advantage of not affecting the coordinates and introducing errors into measuring machines. Another example is the encasing of glass scales in light cast alloy housings. Such renowned companies as Zeiss also use light cast alloy for their coordinate measuring machines. Granite is meant for equipment used in climate-controlled rooms and its costs must be taken into consideration when considering the purchase of a measuring machine.
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| Source: C. Pfau | Date of issue: 17.05.2004 | |
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