Ring Layer Mixer
A ring layer mixer is a high-speed industrial machine used for the continuous mixing, granulating, and coating of powders, granules, and liquids. It operates on the principle of centrifugal force, where high-speed tools rotate at peripheral speeds of up to 50 m/s, forcing product components against the chamber wall to form a dense, concentric ring.
Design and working principle
Core Technology and Operation
The defining feature of this system is the formation of a "ring layer" that enables intense friction and rapid processing within a compact footprint.
- Centrifugal Force: Rapid rotation of the mixing shaft (up to 1,000 RPM) creates a centrifugal effect that moves products into a ring layer along the cylindrical drum wall.
- Plug Flow Mixing: Materials move through the chamber in a plug-flow manner, ensuring consistent residence times and minimal back-mixing.
- High Shear Intensity: The massive speed difference between the rotating tools and stationary wall creates high shear, which is ideal for deagglomerating and dispersing materials.
- Short Residence Time: Processing is exceptionally fast, often taking only seconds, which protects temperature-sensitive ingredients from heat damage despite the high energy input.
Technical data
Ring layer mixers are versatile tools used across several high-output industries.
- Chemical & Detergents: Micro-granulation and densification of detergent base powders.
- Food Industry: Homogeneous mixing of liquid or pasty components into dry substances, such as powder batter mixes.
- Pharmaceuticals: Accurate agglomeration and dispersion for tablet masses or binder mixing.
- Pulp & Fiber: Ideal for fiber decomposition and the preparation of suspensions like pulp slurry.
Specification
| Model | Mixing chamber diameter | Mixing chamber length | Residence time | Throughput rate | Residence time | Throughput rate | Approximate dimensions mm | ||
| unit | mm | mm | Second | [m3∕h] | Second | [m3∕h] | Length | Width | Height |
| RM150 | 150 | 1000 | 21 | 0,4 | 9 | 1.7 | 1800 | 150 | 200 |
| RM200 | 200 | 1300 | 29 | 0,7 | 12 | 3,4 | 2400 | 220 | 290 |
| RM300 | 300 | 1500 | 33 | 1,0 | 14 | 4,5 | 2700 | 260 | 330 |
| RM500 | 500 | 2500 | 55 | 3,2 | 23 | 15,3 | 4300 | 500 | 630 |
| RM600 | 700 | 2800 | 61 | 4,1 | 25 | 19,4 | 4800 | 580 | 710 |
| RM980 | 980 | 4000 | 88 | 10,1 | 37 | 49,5 | 6400 | 1100 | 1500 |
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