A machining center is composed of mechanical equipment and a numerical control system. Complex parts are processed using a machining center that is controlled by computer programming. The machining center is equipped with a tool library and an automatic tool changing device. After one clamping, the workpiece can automatically complete various processes such as milling, drilling, boring, reaming, and threading on two or more surfaces. Moreover, automatic tool changing can be completed during the machining process, greatly improving production efficiency and automation.

There are many factors to consider when choosing a machining center, including machining specifications, production efficiency, economic benefits, machining accuracy, investment situation, and technical services. The demonstration must be conducted with the joint participation of the process department, equipment maintenance department, user department, and technical improvement department, so that the equipment's processability, processing accuracy, production efficiency, reliability, maintainability, and economy meet the needs of higher-level departments and organizational development. After the approval of the demonstration report, relevant personnel should be organized to select products from 3-5 manufacturers for detailed comparison, and form the technical parameters of the bidding documents.

Tool presetters, automatic measuring devices, tool monitoring systems, cutting state monitoring devices, self-adjusting control devices, various diagnostic devices, etc. are all accessories of machining centers, which are often seen on machine tool quotations. Choosing one that is practical and reliable plays a significant role in improving the efficiency and quality of machining centers. In addition, some accessories must be selected, such as machine tool cooling protection device, chip removal device, spindle oil temperature control device, etc. The use of these devices will result in excellent machining performance, stable machining quality, and also extend the service life of the machine tool.