Japan Steel Works High-performance extruder for research and development
Japan-based machine manufacturer Japan Steel Works (JWS) will be exhibiting its Tex-25-αIII laboratory extruder at NPE.
Japan Steel Works' (JSW) compact, 26.5 mm-diameter, co-rotating twin-screw extruder, which is used for developing various compounds and master batches in engineering and high-performance thermoplastics, is the smallest of all the nine ranges in the Tex-αIII series.
The compounding range of Tex-25-αIII covers all general purpose/engineering plastics recipes and extends to engineering plastics such as PEEK, PPA, PPS, LCP, PEI and PI as well as rubber/elastomer compounds like TPV. Its design allows for the processing of materials in all shapes and physical forms, including liquids, powders, pellets, flakes, chips and regrind. This makes the compounder ideal for research and development with frequent material and process changes, as cartridge heaters and a barrel-clamping mechanism enable easy and rapid barrel-section block changes. The total screw length/diameter ratios are available in 42:12-block, 52.5:15-block and 70:20-block versions.
According to JSW, the machine accommodates vented or closed barrel sections and side feeding of abrasive reinforcements, heat or shear-sensitive compound additives. Moreover, its wear-resistant, LSP-2-modified tool steel screws, and its barrels, which are made of a N60S nickel-based alloy, promise long life of barrel.
Other advantages of the Tex-25-αIII series include a new gearbox design combined with enhanced gears and bearings, screw shafts and barrels as well as individual barrel temperature control. The result is a high torque of up to 194 Nm per shaft combined with wider processing windows as well as more aggressive kneading and mixing. It also has a standard torque limiting function that disengages the motor and gearbox to stop screw rotation to protect the machinery. A low noise, water-cooled motor is optional, as is the direct drive instead of the standard V-belt drive available in Europe.
The Tex-25-αIII comes with JSW’s Exanet 64-bit Risc high-speed control system. Its 15-inch, colour, LCD touchscreen enables easy operation, optimum process control and monitoring, and is able to store thousands of operation conditions and process parameters. It can be integrated with auxiliary equipment as well – from JSW’s gravimetric feeders, side feeder, through to strand and underwater pelletizer units.
At NPE, JSW's booth will be in the West Hall, Level 2 in Hall B (W2111).