PromaXX is a Sino-German joint venture with rich experience in the extruder pasts industry. The German shareholder Extruder Experts GmbH & CO.KG is an international renowned brand in the extruder industry. We are specialised in producing screw elements, shafts, barrels, gearboxes for twin-screw extruders, and we also provide our customers a series of Twin-Screw Extruder for Pharma-& Lab-Extrusion, also the maintenance equipments for extrusion. PromaXX is not only spare parts manufacturer but also extrusion solutions provider!