BERG is an expert in the development and manufacture of the most reliable oil-free screw compressors. The ZX series is the exquisite screw compressors that come from this strong tradition of two-stage and air cooled systems. The ZX offers a rugged design and low operating costs for industries where high quality, oil-free air is the key solution. BERG Kompressoren has reached a new milestone: Being a German company certified to ISO 8573-1 CLASS 0, setting the standard for air purity. Every machine is tested to ensure that it meets specifications, complete safety, and no surprises. ZX oil-free compressors are really easy to use and have no maintenance issues.