I would like to ask what type of air compressors are used in the food industry

It depends on what purpose the air is to be used for. If it is to be used in food products, it’s recommended to use piston-type compressors; the air produced by screw compressors contains oil, and this is practically unavoidable. Even if an oil-water separator is installed later, I still think it’s not a good solution. If the air is meant to power tools or assembly lines, then it doesn’t matter. Moreover, piston technology is now quite mature, so maintenance is generally not required. The maintenance costs for screw compressors are much higher than those for piston compressors. It’s necessary to analyze the specific circumstances of your organization before making a decision

This post was last edited by whthday on 2015-6-26 at 12:41. Thank you very much for your advice. The air compressor I have is used for experiments, and the requirements regarding the quality of the gas are similar to those required for food or medical use. Currently, I am using an air compressor with four compressors and a capacity of 3 kilowatts. Because I’m not majoring in chemistry, and I don’t have any prior experience in this area. Some problems arose during the experiment. The main problem at present is the high consumption of gas, as well as the frequent startups of the air compressor units. Additionally, since the test site is located by the sea, the air is quite humid, which results in significant wear and tear on these units. The bearings need to be replaced every month. So now I’m considering whether to switch to another type of air compressor, and that’s when I thought of screw air compressors. I recently saw an oil-free screw air compressor on the Atlas website; I’m not sure if it would be suitable for use in the food industry. There is also a type of vortex air compressor. I have never seen these two types of air compressors before, and I am not familiar with their specifics; therefore, I would appreciate some guidance from the experts. Additionally, the piston air compressor I use is a multi-head type of compressor; more detailed information can be found on this link. Are there also many different types of piston air compressors? Do any experts have any more suitable machines to recommend? Thank you! Link to the model of the air compressor currently in use

Any model of compressor will do, as long as the pressure and flow rate meet the requirements. The key is to dehydrate, remove dust, remove oil, and add lubricant to the compressed air as needed, so as to meet the process requirements.

Oil-free screw compressors are more than sufficient. You can choose between domestically produced ones from Wuxi or imported ones; it’s up to you.

Is it troublesome to maintain it on a regular basis? For example, if some components break, can they be replaced by oneself without the need for the manufacturer to carry out repairs?

The food, pharmaceutical, and electronics industries generally have very high requirements for air quality, demanding strict standards regarding oil content, solid particles, and moisture levels. If the gas consumption is not particularly high, it is recommended to use an oil-free screw compressor. However, oil-free compressors are very expensive; as an alternative, an oil-minimized screw compressor along with a gas storage tank and a four-stage filter as well as a cold dryer should be sufficient to meet the requirements. If energy savings are a concern, a variable-frequency model can be chosen.

External parts can be replaced by oneself, but the internal parts are more troublesome. It requires special repair.