Chemistry is mainly about separating and mixing materials. Separating is done in a centrifuge, where materials are put into a
container and spun around at very high speeds. The individual substances then separate within the container in relation to their mass, which is how they are separated. The precise mixing of substances is done mainly with dosing systems and mixers. These are made out of several tanks and pumps, within which the substances are mixed together with extremely high levels of precision. The market for machines used in the
chemical and pharmaceutical industry is under high pressure to be as innovative as possible. Machines change very quickly over generations and are constantly upgraded in terms of their efficiency, power and ability. Additionally, it is important that an inspection and cleaning process is done before working with a used machine. It is also necessary that a comprehensive document outlining the tasks formerly undertaken by the machine is available. It is particularly useful to find out, whether there are manufacturer specifications for the further use of a second-hand machine. Generally, many pieces of equipment have to be replaced due to health and safety reasons, for example, seals. With the necessary technical knowledge, a used machine can be transformed into a fully functioning machine.