In this regard, equipment for wet grinding and dust-free dry input systems are preferred. If the equipment is selected for a process in which the ignition of substances cannot be excluded under certain circumstances or if the operating and safety instructions are not observed, the technical specification for the purchase must include a provision for an explosion-proof design of the production machine or plant. When selecting equipment, attention should be paid to the flexibility of the design solution: whether it allows the production of a narrow or wide range of products, and whether it is possible to change the technological parameters during the production of a particular product. The more versatile the production line, the less investment will be required when one product range is removed from production and another is introduced.
Another very important criterion for equipment selection is the suitability of the plant for the production of pharmaceutical products. For example, the metal parts that come into contact with the product must be made exclusively of high quality stainless steel and the sealing material must meet FDA (Food and Drug Administration) standards. The equipment should be easy to clean and sterilize. It is necessary to pay attention to the modern design of the equipment and> not only for aesthetic reasons, but also from a practical point of view. The dimensions of the equipment should allow its installation and operation in the existing production room. Based on its weight, the load on the floor is calculated, which should not exceed the permissible value. Elements of the equipment should, if possible, be set aside, easily dismantled, opened or slid to provide easy access for maintenance and cleaning.
An important prerequisite for successful competition in the industrial equipment market is the manufacturer’s ability to modify the basic design of the plant on customer’s request, as well as to equip the supplied plant with components to the order of the pharmaceutical company. In other words, the best supplier is the one that offers not only machinery and equipment, but also engineering and consulting services.

Before a pharmaceutical product goes into mass production, it must be obtained in a laboratory and undergo quality and pharmacological testing. A finished quality product obtained on laboratory equipment is easier to reproduce in industrial conditions on production scale equipment of the same series.
Therefore, it is more convenient to deal with those manufacturers who supply equipment of the same series in different typical sizes – from laboratory to industrial plant. Thus, the scalability of the process by using equipment from one particular supplier is an essential criterion for the selection of pharmaceutical equipment. Sometimes the investment even in laboratory equipment is significant. Therefore, it is important to have a pilot laboratory at the equipment manufacturer’s plant, where representatives of the pharmaceutical company, accompanied by the manufacturer’s technologists, can make trial batches of the product. This approach to the selection of equipment allows to make an optimal choice and avoid errors in investment. In addition, the choice of equipment is influenced by the availability of warranty obligations of the supplier and the availability of spare parts. Therefore, it is necessary to request information from the manufacturer about the cost of spare parts and their approximate service life in order to estimate in advance the costs of the enterprise for the operation of the purchased equipment. Indirect confirmation of the reliability and efficiency of the equipment of a particular manufacturer are positive reviews and recommendations from consumers of this equipment. Therefore, before making a purchasing decision, it is necessary to request from the supplier a list of pharmaceutical companies that have previously purchased equipment from him, as well as a list of equipment that was supplied to them. When selecting an equipment supplier, it is necessary to pay attention to its economic situation and internal organization, which are not limited only to the current results of economic activity. From the point of view of the reliability of subsequent warranty service and the guarantee of spare parts supply, it is preferable to work with suppliers who are not separate companies, but are united in one group and have offices all over the world. Weakening of market conditions in one country and deterioration of the position of one enterprise of the group, as a rule, does not affect the position of other enterprises of the group.