The air compressor housing (or casing) is a core structural component of an air compressor, typically used to enclose key moving and sealing parts such as the compressor rotors, cylinders, and valves. It serves as the 'backbone' for the entire machine, facilitating gas compression, energy conversion, and structural support. The design must balance high strength, airtightness, and heat dissipation, as its assembly precision directly impacts the compressor's efficiency, noise levels, and service life.