PTG vacuum screws play a key role in general manufacturing applications, spanning a wide range of industries. Vacuum pump technology aims to run cleaner, utilise less power, as well as generate less noise, vibration and heat. Holroyd Precision Rotors can help you achieve these aims. Our technical knowledge of helical forms and our expertise in grinding vacuum screws benefits our customers through efficient and effective vacuum screw design and manufacture. With many years of experience in the compressor industry, Holroyd Precision Rotors can produce screws to extremely tight tolerances across a range of materials.