How can I purchase air compressors without stepping on minefields?

1. How to choose the right model?

It is suggested to purchase compressors according to the actual gas consumption requirements. When purchasing power frequency air compressors, it is suggested that 1.1-1.2 times of the peak gas consumption value is the most appropriate. If the model is too large, the unloading (idling) time will be too long and electricity charges will be wasted. If conditions permit, please give priority to permanent magnet frequency conversion air compressors. The air supply range of frequency conversion air compressors is 10-100, and constant pressure air supply will not waste electricity charges due to unloading (idling), when purchasing a permanent magnet variable frequency air compressor, it is generally recommended that more than 1.3 times the peak value of gas consumption is the most appropriate.

The performance of the air compressor is still stable.

The key component of the air compressor is the screw head. For the air compressor, the head is just like the CPU of a mobile phone and a computer, which is directly related to the service life of the air compressor. At present, the better heads on the market include Atlas Copco and gran klin, followed by Shouli, Ingersoll Rand, Hanzhong AA/AB heads, and Hanzhong AC or Tongrun heads. The most common head is Bowes, which is not necessarily bad. But as long as the brand head quality is generally not bad. If the company stops production due to poor air compressor quality, the loss must be much higher than the cost of ordering an air compressor.

3. Energy efficiency & specific power

when purchasing an air compressor, don't just look at the surface price. As an industrial product, the air compressor is still very particular about the price and the goods. The priority should be the specific power of the machine. The purchase cost of the air compressor often only accounts for 5% of the total service life of 10 years, the rest of the maintenance cost accounts for 5%, and the maximum consumption cost is about 90% of the electricity cost. Therefore, it is important to buy an inappropriate air compressor, the loss is not just the tens of thousands of dollars when buying air compressors, and the huge electricity bills generated by low energy efficiency. It will certainly greatly increase the cost of production and operation.

4. Imported machine

at present, 98% of the products in the domestic air compressor market are assembled in China. Oil-injected screw machines must not blindly follow such oral agreements as believing that overseas production is pure import. Unless it is an oil-free model, if you have to buy pure import, please be sure to provide the customs declaration certificate of the corresponding production batch of the equipment.