https://www.aulisscomp.com/products/medium-pressure-screw-air-compressor/
The AULISS medium pressure air compression employs a German linear screw main unit, capable of reaching a maximum pressure of 30 bar. The main unit is designed with a full screw structure, heavy-duty pressure bearings, and a labyrinth seal, ensuring zero leakage under high pressure. The medium pressure air compressor features an integrated oil channel lubrication and internal pressure regulation system, ensuring flawless lubrication even under high pressure. This medium pressure screw air compressor maximizes the cooling function of the lubricating oil, using a high-pressure cooler and a specialized water cooling system to enable low-temperature operation under high pressure. This significantly extends the medium pressure compressor lifespan.