What are the differences between an oil-free compressor and an oil compressor?
The air compressor in the oil and non oil generally refers to how much oil air compressor exhaust port of the exhaust gas, there are large amount of oil engine oil, the oil content of oil machine is 0.01ppm, so the oil content to distinguish air compressor oil and non oil. There is no air compressor it does not use oil, lubricating oil, instead of using the resin material lubrication, so the final exhaust gas oil called oil free air compressor, but at present the quality of the air compressor is not very satisfactory, the domestic general is no oil lubricated with oil. Air compressor gas tank occupies a certain space, but it has no fixed shape and volume. The pressure applied to the closed container in the air, the air volume is compressed, so that the internal pressure increases. When the external force is removed, the air in the internal pressure, and return to the original volume. The fruit in the container has a movable object, when the air is to restore the original volume, the object will be container air pressure outward play it. This principle is widely used in production and life. For example: the ball into the compressed air and gas more, more hard ball;
At present, oil free air compressor is improved with development of base oil air compressor. The two main ways: one is water instead of oil, another is in the rotor with self lubricating coating, because the bearings on both ends of the rotor speed to oil lubrication, so it is necessary to make the compression space space lubrication rotor bearing and rotor seal each other, it is because of this high speed sealing the machining accuracy of oil free air compressor is quite high, the cost is great. And there is a huge problem is again good sealing technology are damaged. No fault oil air compressor in the event of a host header, too the head is only too accurate, host manufacturers maintenance, greatly increase can't repair, even if you can repair, need to pay huge amounts of money and a lot of time to repair. Therefore not large enterprises should not blindly purchase oil free air pressure Machine.
