Vacuum conveying is a closed pipeline conveying method that can eliminate dust environmental pollution, improve the working environment, reduce environmental and personnel pollution of materials, and improve cleanliness; Due to pipeline transportation, it occupies a small space and can complete powder transportation in narrow spaces, making the workspace beautiful and generous; At the same time, vacuum conveying can reduce manual labor intensity and improve work efficiency, and is the majority of powder material conveying methods.

Why can't the vacuum feeder run at low speed?

Because bearings operate without lubrication at low speeds, dynamic pressure bearings refer to bearings that work in a lubricated state. In a non lubricated state, the two surfaces of dynamic pressure bearings that rotate come into contact with each other, which not only reduces work efficiency but also causes significant metal wear!
Dynamic pressure radial bearings can be roughly divided into single oil wedge bearings and multi oil wedge bearings according to their structure. Single oil wedge bearings have integral and split types, while multi oil wedge bearings have multi oil wedge, stepped surface, and so on. According to the different structural divisions of radial bearings, their operating load capacity also varies! That is to say, the state of high-speed operation is different!
I am not very familiar with the phenomenon of qi and blood in dynamic pressure bearings, but I think it may be related to temperature. During the operation of dynamic pressure bearings, high temperatures are generated, and at the same time, coolant is constantly added, causing a temperature difference in the lubricant between the bearings