Oil-free screw compressors are ISO 8573-1:2010 grade 0 certified to achieve 100% oil-free for most critical applications. These compressors are highly efficient and robust in design and are reliable heavy-duty machines that ensure the productivity of your business. Completely avoid the need to replace the motor bearing and motor shaft seal due to wear and leakage. Oil free air screw air compressor will reduce the operating cost for the enterprise through its dynamic efficiency!