PTM is a manufacturer of sophisticated, submersible mixers for biogas plants. As a specialized manufacturer of high quality mixing equipment with many years’ experience in handling the most challenging applications we have an in-depth knowledge of the sophisticated technology requirements of biogas applications. We have applied this practical knowledge to develop a range of mixers that combine maximum efficiency with unparalleled durability. Dependent on boundary conditions these mixers are available in propeller diameters of 2,500 mm, 1,400 mm, 1,000 mm and 650 mm. More >>