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				Four press methods, same outcome: P/O/WEBER's quality convinces 1 Single-acting pressing of powdery substances with Models 8, 10 and 10 H at room temperature and up to 300 °C eg. KBr, metal powder, ceramic powder, … 2 Double-acting pressing of powdery substances at room temperature eg. KBr, metal powder, ceramic powder, … 3 Pressing of plane materials, plates and foils Pressure plates for all types of presses and hot/cooling-plate systems for all types of presses up to 500 °C eg. planiform composites, aluminum foils, adhesive materials, polymer materials, … 4 Cold-isostatic pressing of substances in all axial directions with KIP-Models at room temperature eg. graphite, ceramic, carbide, synthetics, metal powder, …
				A widespread procedure for the manufacturing of compacts is crushing and mixing a sample with dry KBr-powder (potassium bromide). The mixture first is filled into an evacuable press tool. Then, under defined pressure in lab presses, transparent disks, the compacts, are produced. The method is uncomplicated and indispensable in the preparing of hardly soluble substances for infrared spectroscopy and X-ray fluorescence analysis. KBr stays transparent from ultraviolet wave-lengths wide into the infrared spectrum. This is why the method is applicable at both sides of the wave-length spectrum.
				For all P/O/WEBER press tools, for the exchangeable inserts and for micro-inserts there is a rule of thumb to calculate the maximal load at room temperature: For compacts up to a diameter of 8 mm the extrusion press die can be put under a pressure force of max. 0,8 kN/mm2. For compacts with a diameter of 9 mm and more the load may be up to 1 kN/mm2. Maximal load in dependence of temperature, Model 10 H: Temperature 20°C / 100°C / 200°C / 300°C kN max. 100% / 100% / 75% / 50% Unless the press die's handling is easy, some concentration and caution is required: The hardened stainless steel is fragile and flaw sensitive to strokes and falls. Therefore the preparation of the press tools is not advisable on very hard working surfaces like glass or stone. When inserting the upper press die into the matrix, it should be turned several times without pressure, so that the press material is apportioned evenly. P/O/WEBER's tools are manufactured so precisely, that usually less than 0.1% of the press material gets lost through creeping. After use you should remove carefully the adhering residues from all parts of the press tool. Especially potassium bromide and other salts can damage its high quality surfaces. Because press tools in use must not be greased, we recommend the storage in a desiccator with dehumidifier.