MACHINERY | LAB COMPOUNDERS
Right and below: Labtech’s latest 26mm twin screw extruder can be used with co- and counter-rotating screws to handle both PVC and other thermoplastics
Like other Labtech machines, the MicroCom- pounder can be supplied with various options, including gravimetric feeding systems, liquid feed- ers, and downstream water baths, air cooled conveyors and a selection of pelletisers. Each barrel zone is equipped with both water cooling and electric cartridge heating and the maximum processing temperature is 400°C. Labtech has also further developed the
feeding passes through an intermeshing, co-rotat- ing twin-screw arrangement that lets exhaust air pass while re-introducing particles back into the compounding process,” says the company. There is no need for replacing filters or back-flushing. The company claims that, in certain applications, the FSE system can enable an increase in throughput of up to 30%.
As its name suggests, Thailand-based Labtech Engineering focuses on lab-scale processing equipment. Its latest and smallest twin screw compounder to date is the modular 12mm MicroCompounder, which has been designed to process 3x3mm size pellets as well as powders. While suitable for processing very small quantities of material for research applications, the company says it can also produce larger quantities and claims a maximum output of around 4kg/h.
16mm version of its co-rotating twin screw extrud- er to include water cooling and electric heating on both the upper and lower barrel modules. This is said to allow for very precise temperature control at each zone, as well as more rapid cooling. The maximum barrel temperature is 400°C, making the machine suitable for most compounding options. Highly corrosion resistant screws and barrel inserts are also available. Labtech also now offers a miniature single-layer cast film and sheet line. Built around a 16mm, 30-L/D single-screw extruder, the unit is said to be well suited for masterbatch producers needing to carry out quality checks during production as only a few hundred grams of material is required for each test.
Flexible for PVC For compounders working with PVC and other thermoplastics, Labtech offers a machine with 26mm screws that can operate as a co- or counter- rotating unit. Company President Peter Jurgensen says the machine presents new possibilities for compounders that want to produce, for example, masterbatches based on both PVC and other thermoplastics.
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IMAGE: LABTECH ENGINEERING
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