As a result, Coperion now offers the ZSK 26 twin screw extruder that fulfills all of the pharmaceutical industry’s guidelines and covers throughputs of 5-20 kg/h, depending on application and materials to be processed. The ZSK pharma extruder series is now available with new, completely integrated Coperion K-Tron K3 pharma feeders. Coperion and Coperion K-Tron will be available to discuss these and other new developments in the fields of feeding, extrusion, and material handling at this year’s Interphex (April 28-30 2020, New York NY, USA, booth 2042).
Combined with the already well-known characteristics of its ZSK pharma extruders, Coperion has equipped the ZSK 26 with some new developments. Like the ZSK 18, the ZSK 26 pharma extruder’s process section is designed to be free hanging. Thanks to this new design, the product contact parts are optimally accessible from all sides, greatly simplifying machine dismantling and cleaning. The dual-cycle cooling system, which safeguards cooling of both the process section as well as the motor by using water, has now been fully integrated into the extruder’s base frame. Likewise, the vacuum pump as well as the KCM control unit for Coperion K-Tron’s highly accurate feeders are housed in the base frame. Together, these measures markedly reduce the entire extrusion system’s space requirement. Moreover, they enable simple, quick extruder startup at the operator's location and facilitate production, cleaning and maintenance by separating product-contacting and non-product-contacting machine areas.
Reproducible, High Product Quality
All Coperion ZSK pharma extruders are compactly designed, easy to service, and optimally accessible for cleaning and maintenance. For the highest possible flexibility when feeding liquids and solids as well as during mixing and product melt devolatilization, Coperion uses a modular system for the extruder’s process section, comprised of several barrels in which self-cleaning screws co-rotate. The Do/Di (outer-to-inner screw diameter) of 1.55 enables secure scale up within the entire ZSK pharma extruder series. The 11.3 Nm/cm³ specific torque enables high throughputs at low screw speeds and thus low product temperatures. The product components’ thermal load in the temperature-controlled ZSK process section is also low. Complete integration of the ZSK pharma extruders with Coperion K-Tron’s newest line of pharmaceutical feeders ensure exact adherence to the formulation and reproducible high product quality.