The MAAG Group, a global leader in the development of conveying and processing systems for the plastics industry, introduced a groundbreaking innovation after more than four years of intensive research and development: the first gear pump specifically designed for the continuous conveying of rigid PVC (polyvinyl chloride). The extrex⁶ EC opens a completely new chapter in PVC extrusion technology.

Rigid PVC is considered a particularly challenging conveying medium due to its thermal sensitivity and tendency to decompose. Conventional gear pumps often reach their limits when it comes to these requirements – deposits, material combustion, and process instabilities have been virtually unavoidable until now. The extrex⁶ EC was therefore developed specifically for this challenge: its gap-free design without dead spaces effectively prevents material from sticking and remaining in the pump. This significantly reduces the thermal load on the PVC – and thus also the risk of decomposition.

Technological highlights of the extrex⁶ EC:

·         Gap-free design without dead zones: The innovative design eliminates dead spaces and thus potential extended dwell times of the material in the pump. This prevents thermal decomposition and ensures a stable, clean process.

·         Up to 50% increase in extruder efficiency: The uniform, pressure-stable delivery significantly reduces the load on the extruder. Depending on the application, either the material throughput can be significantly increased or, at constant throughput, energy savings of up to 50% can be achieved in the extruder.

·         Reduction of the process temperature by up to 10°C: The special design of the pump enables optimized temperature control in the melting process. This reduces the thermal stress on the material and makes the use of expensive stabilizers partially unnecessary – a considerable economic advantage.

The extrex⁶ EC thus offers a reliable and economically attractive solution for conveying rigid PVC – and sets new standards in terms of process reliability, product quality, and resource efficiency. With this new development, the MAAG Group once again reinforces its innovative leadership in plastics processing and makes a significant contribution to the sustainable optimization of extrusion processes.