Small-Scale MX Kneader Features Four-Flight Technology
Making international debut appearances at several events earlier this year was the new four-flight Laboratory Kneader MX 30 from Buss AG of Switzerland. It was reportedly very well received amongst global compounders. BUSS is reportedly already taking orders for the machines. Visitors were able to view the new laboratory Kneader with its barrel assembly in the opened position. The low screw speed permitted a clear view of the working principle of the four-flight Kneader, namely the dual rotational and oscillating motion of the screw and its combined axial and transverse mixing action, which together ensure an extremely high quality of mix.
Featuring a 30 mm diameter screw, the Laboratory Kneader MX 30 rounds off the MX Series at the lower end of the performance range. It is rated for outputs of 5 to 25 kg/hour and/or for batch quantities upwards of 300 g and has a maximum screw speed of 800 rpm. The temperature control system of the Kneader barrel permits processing temperatures of up to 280°C. Like the larger machines of the MX Series, the MX 30 is particularly suitable for the compounding of heat- and shear-sensitive polymers and for the production of compounds highly filled with reinforcing and other fillers. Equipped with a discharge extruder, a pelletizer and a user-friendly control system with touch panel, this laboratory Kneader is technically as versatile – in process terms – as the larger models of the MX Series.
Designed especially for research and development and for such other applications as process and formulation development and optimization, the MX 30 is the first laboratory Kneader to feature four-flight technology. Thanks to the high conveying stability and the linear output to speed ratio, the processing parameters obtained with the MX 30 can be reliably scaled-up and applied to larger MX Kneaders. The hinged Kneader barrel assembly is particularly advantageous as the state of the product – that is to say, the progress made in the compounding process in the various barrel zones – can be checked visually.
Besides being the ideal laboratory extruder for formulation and product development, the MX 30 is a versatile small-scale compounding line for the production of sample quantities for customers’ trials or for the small-batch production of a wide diversity of compounds. An optional range of accessories, e.g. metering systems for material feed or different pelletizers, enable the MX 30 to meet virtually any requirement.