PTM is a specialized manufacturer of highly developed heavy-duty submersible mixers for biogas plants. With many years of experience in dealing with the most demanding applications, we have extensive knowledge of the demanding technical requirements of biogas plants. We have used this practical knowledge to develop a range of mixers that combine maximum efficiency with unparalleled durability. Inspired by the idea of creating a machine that combines virtually indestructibility with the highest level of functionality in one product, our engineers have used the latest simulation methods to develop a propeller shape that is characterized by the highest level of efficiency and effectiveness. More >>