This Rotary Paper Board Sheeter is fit for jumbo roll paper sheet into required size, with advanced technology from Europe, it has features of high speed, flexible unwinding unit, high production capacity and reliable working.
PLC is an instant system that is different from personal computers. In the traditional relay-based motor control system, the entire system is almost completely re-made every time the design is changed, which is not only time-consuming and laborious. At the same time, the relay has the disadvantages of poor contact, wear and bulk, which causes cost. Increased, low reliability, difficult to repair and other issues. In order to improve these shortcomings, the United States DEC first published in 1969: Programmable Controller (Programmable Controller).
At present, there are many kinds of PLC controllers on the market, which vary according to the manufacturer and the applicable place. However, each type of label can be divided into large, medium and small according to the complexity of the unit; while the general factory and school usually use small PLC. Among them, the Japanese F series and China's A series PLC are more popular with Chinese people.