The numerical control jig machine uses multiple air valves to share the same air source and air chamber. When each intake valve of more than two sets of intake valve assemblies is opened, there is a slight delay time difference between each other. When each exhaust valve of the jig is opened, there is a slight delay between each other. The above-mentioned time difference can be adjusted online, or it can be zero; in a working cycle of the jig machine, multiple inlets can be carried out. Due to the use of the air valve system that is reduced to zero, the multiple pulsation working state is formed, which can improve the pulsation waveform and frequency of the jig machine, which is beneficial to the sorting process.

Intelligent automatic control system, using PLC to automatically control the full set of equipment one-button start, simple operation, convenient maintenance, emergency stop in accident, automatic alarm, online monitoring system.

Multiple pulsation jigging machine has the characteristics of reasonable structure, improved sorting effect, increased frequency of jigging machine, and convenient adjustment, etc., which is especially good for high-precision sorting of fine coal.