Buy an air compressor, is not a simple walk-style, out of 'the process, you will find the following problems occur:
What are your skills? 240V single-phase (up to 12cfm fashion)? 415v three-phase (16cfm fashion to 800cfm)? Petrol-driven (up to 40cfm fashion)? Diesel-driven (from 12cfm fashion to 900cfm)?
Of course, you can skip it and buy the old compressor, but make sure you get the right compressor, you will need to know the compressor is currently on the market Shang's Butong types.
Some compressor energy efficiency, while others use a high power tons.
Some compressor to a lot of noise, you almost can not hear the other. You need a low noise compressor?
Compressor power and performance is also worth considering. It is a large workshop? Or similar dental surgery, much less need low power.
Before you even consider buying an air compressor, you need to work out what you really have the power to use in your place of business.
If you have only single-phase 240V available, you will need to see your choice of 240V. You will need to find a 240V compressor, can provide the highest performance, it is also energy saving.
If you have a three-phase power supply then you will need more energy conscious.
Choose the right air compressor can save thousands of dollars, and the difference in running the day in case of problems, because of the lack of pressure, or run a smooth and steady operation.