First seen at the October 2017 IPF International Plastics Fair in Tokyo, JSW has announced that its compact TEX34αIII high-performance compounding extruder is now also available on the European market.
The TEX34αIII model, which features the EZ easy-change tie-bar system for easy barrel changes, replaces the slightly smaller TEX30α small-lot extruder. With a screw diameter is 36 mm, the extruder’s high torque density (18.2 Nm/cm3) enables effective yet gentle compounding at low screw speed and at low temperature, without adversely affecting throughput. Should torque rise to an unacceptably high level, a torque limiting function protects the machine by disengaging the drive motor and gearbox, so that the screw stops rotating. Throughput typically reaches up to 500 kg/h in talc-filled polypropylene, 250 kg/h in masterbatch compounding and 150 kg/h with polymer blends such as ABS and ABS/PC, etc. The TEX34αIII is available in two different models: standard and ultra-compact; in the latter case, the control cabinet is built within the footprint of the machine frame, saving space and installation time. The specifications and performance of both versions are the same.
The extruder is equipped with JSW’s NIC (Nikko Intensive Cylinder) mixing barrels which feature longitudinal grooves on the inside of each barrel. This benefits mixing performance by allowing more polymer to pass through the larger gap between the depth of the grooves and the screw. The special JSW screw element is the TKD (Twist Kneading Disc), with twisted instead of conventional straight flights, which results in less pressure on the flights and achieves good dispersive mixing with low screw wear - important when compounding abrasive materials.
The control system boasts a 15-inch colour LCD control panel on both models, resulting in more comfortable and faster extruder operation; aside from the extruder, the control system can integrate optional auxiliary equipment such as gravimetric feeders, side feeders, pelletizers. Customers can however choose to use a PLC (programmable logical control) system of their own choice, instead of the JSW EXANET system.
Monitoring is possible via a web browser on desktop PCs, from which processing conditions can be adjusted via the network.