The Champion HR7D-12 Reciprocating Air Compressor is a powerful and rugged machine that is perfect for any mid to large sized shop. With its pressure-lubricated design, it can handle multiple users at once with ease, making it a perfect choice for shops with around 10 employees. The mineral or synthetic oil options make it easy to keep this machine running at peak efficiency, and the duplex units ensure that you always have a backup in case of an emergency. Order your Champion HR7D-12 today and rest assured that you're getting a top quality product that will serve you well for years to come.