
RoSM-300
Our system solution combines loosening, gentle mixing, and precise sieving of non-metallic powders in a compact process module.
Achieving a high level of quality and increased screening yield with low space requirements and energy consumption was the motivation behind the development of the assonic high-performance vortex screen SONIC SPEED SCREEN™ RoSM series.
Our sieve baskets made of sintered stainless steel laminate or stainless steel mesh (20–5,000 µm) enable highly efficient sieving of fine powders. Direct ultrasonic and linear impact excitation of the sieve basket eliminates boundary layer resistance, ensures effective self-cleaning, and increases throughput by 1.5 to 10 times.

APPLICATION:
The RoSM-300 ensures effective screening of non-metallic powders in a compact process module. Agglomerates are reliably reduced, significantly reducing the oversize particle content. Thanks to customized paddle geometries, variable speeds, and low-frequency digital ultrasound excitation, the system can be optimally tailored to the product's properties.
Thanks to the pull-out and swivel unit, changing colors or products is quick and easy. The compact design allows for straightforward integration into existing systems – including the control system.
Available in food-grade versions as well as ATEX versions for Zone 20 and 22.
FEATURES AND BENEFITS:
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Continuous screening
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Visible screening process
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Self-cleaning sieve
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Adjustable ultrasound, rotor speed and inclination of the machine
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Sieves 20 - 2000 μm, stainless steel
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Quick screen change and easy cleaning
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Location-independent, mobile use
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Low energy consumption - small footprint
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Patented process with sieve elements made of sintered sieve fabric
KEY DATA:
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Approximately 50kg/h powder coating PAR at 250 μm
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FDA compliant
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Possibility of using inert atmosphere and oxygen control
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ATEX certification possible
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Small footprint
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Standalone machine
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Low CO² footprint
Here you can download our product flyer, which provides you with all the important information and details about our offerings. You can also watch our application video, in which we show you how to get the most out of our products.




