By . Air Compressor. At Wednesday, August 15th 2018, 04:55:40 AM.
For the people who want a more powerful model, there is Westward 4B220 portable air compressor. This machine uses a powerful Briggs engine. Its powered by a powerful 5.5 HP motor. The machine uses a 2 cylinder pump made of cast iron. It has a horizontally placed tank which has a rated capacity of 20 gallons. It uses a four cycle aluminum block engine. The machine has 21 oz engine oil capacity and 12 oz of compressor pump oil. The machine uses a time tested reliable type H tank which makes it one of the longest performing and most reliable machines that you can buy.
Oil free systems are a bit more technical so sometimes are more expensive. Often they are louder than an oil lubed compressor, but the air delivered through one of these pumps is of a better quality. They are found for home use, and are great because they are low maintenance and start up quick in cold weather.
All reciprocating air compressors throw out some oil with the air they compress. When the tank reaches its designed pressure limit, a switch will interrupt electrical power to the motor. Simultaneously, a certain amount of oily air will be released into the shop environment. You may see oil collecting on the wall behind the compressor and on the pump and compressor as well over time. This is not cause for alarm but periodic cleaning may be needed.