The liquid gravimetric loss-in-weight feeder fulfills ATEX requirements and can be connected to each of the barrels of the extruder process section. This flexibility in feeding also applies to the API gravimetric loss-in-weight feeder. It can be mounted on the first barrel or fourth barrel of the process section. This allows the use of the ZSK extruder for processes requiring process lengths of 32 L/D as well as of 20 L/D.
The gravimetric feeders also offer flexibility in their ability to handle a wide variety of materials, with even difficult flow characteristics and variable feed rates. This flexibility, coupled with superior digital weighing and controls technology, ensures high accuracies in materials feeding, all critical to the continuous pharmaceutical process.

• With a maximum throughput rate of 10 kg/h, the ZSK 18 MEGAlab is suitable for both wet extrusion and hot melt extrusion (HME) on a laboratory scale. 
• For wet extrusion processes the system comprises more than ten different die plates with various numbers of die holes and die hole diameters. For hot melt extrusion applications, the ZSK extruder is equipped with a die head that has several exchangeable nozzles to provide different strand diameters.
• The die head offers additional bore holes for PAT (Process Analytical Technology) sensors.

The ZSK extruder itself and all peripheral equipment are very compact in size and are movable on wheels for optimum usage in laboratory conditions. The GAMP control system, as well as the water-cooling manifold, is integrated into the stainless-steel base frame of the ZSK extruder. Thanks to plug & play connections commissioning is possible in the shortest times. 
Due to geometrical consistency within the ZSK series the ZSK 18 MEGAlab system allows proven scale-up to bigger ZSK extruder sizes and higher throughput rates. This is one of the most important requirements for successful laboratory installation.