How it works: in a complete T-run cycle, the computer according to the setting material values​​, the first control the DZ1 work, expected to finish within the time t1, then the stability of the time t2, the total weight. DZ2 work in t3 cutting time, send a continuous and stable material, and to ensure that the end of the time t3, just send a set amount of material, then the stability of the t4 time, total weight, then calculate the expected end and under the feed end of the two measurement value, that is the exact value of the next Yu (static measurement values​​), then times under the expected value and set value automatically to compensate for the error is spread to the next cycle. Is the preferred energy-saving one of the dispensing equipment of the National Building Materials Bureau.