The Mortar Grinder RM 200 comminutes, mixes and triturates by pressure and friction. The function of the scraper is to feed the sample material into the area between the mortar and pestle. This forced feed ensures that the whole of the sample is continuously subjected to the grinding and trituration process and is also intensively mixed.
The grinder pestle is not located in the center of the mortar but is offset; contact with the rotating mortar and the sample causes it to rotate automatically. The necessary grinding pressure is achieved by the weight of the pestle itself combined with the adjustable spring pressure acting on its axis.
Mortar Grinder
The RM 200 Mortar Grinder by RETSCH, enables efficient mixing and homogenization of powders, suspensions, and high-viscosity samples, ensuring reproducible preparation to analytical fineness.
Description
Mortar Grinder RM 200
The Mortar Grinder RM 200 can mix and homogenize powders, suspension and pastes, even for samples with high viscosity. The RM 200 is suitable for the proper and reproducible sample preparation to analytical fineness.
The sample grinder substitutes cumbersome hand mortars by a high performance drive with electronic control. The grinding set can be cooled and heated and is very easy to clean. Grinding sets of various material qualities are available which can be exchanged easily for optimum adaptation to various grinding tasks.
Product Advantages
🟦 Dry, wet, and cryogenic grinding for versatile sample preparation
🟦 Reproducible results with adjustable pestle pressure
🟦 Adjustable scraper pressure for optimized grinding performance
🟦 Closed, dust-tight grinding chamber with viewing windows
🟦 Tool-free exchange of mortar and pestle
🟦 Performance display for load control
🟦 Wide material compatibility for contamination-free grinding
🟦 Three scraper materials: PU, beech wood, PTFE
🟦 Pestle speed: 100 rpm
The Mortar Grinder RM 200 is suitable for a wide range of applications, including the processing of ashes, cement clinker, coal, coke, and slag, as well as chemical and pharmaceutical materials, drugs, and homeopathic substances. It is also ideal for food and agricultural samples such as cocoa nibs, nuts, spices, plant materials, oil seeds, and yeast cells, along with salts, silicates, soils, and tiles, ensuring reliable and reproducible sample preparation across diverse laboratory fields.
Functional Principle
Technical Data
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Applications | Grinding, mixing and triturating (dry & wet) | Field of application | Agriculture, biology, chemistry/plastics, construction materials, food, geology/metallurgy, glass/ceramics, medicine/pharmaceuticals |
| Feed material | Soft, hard, brittle, pasty | Size reduction principle | Pressure, friction |
| Material feed size* | < 8 mm | Final fineness* | < 10 µm |
| Batch size / feed quantity* | 10 – 190 ml | Grinding chamber volume | 700 ml |
| Speed (50/60 Hz) | 100 min⁻¹ | Speed setting | No |
| Pestle pressure setting | Vertical (knob + scale), horizontal (knob + visual/acoustic control) | Scraper pressure setting | Knob + visual control |
| Grinding tools material | Hardened steel, stainless steel, tungsten carbide, agate, sintered aluminum oxide, zirconium oxide, hard porcelain | Grinding time setting | Digital, 1–99 min / continuous |
| Drive | 1-phase motor with auxiliary capacitor | Electrical supply | Different voltages |
| Power connection | 1-phase | Protection code | IP 53 |
| Power consumption | 250 W (230 V, 50 Hz) / 290 W (120 V, 60 Hz) | Dimensions (W×H×D) | 400 × 480 × 370 mm (closed) / 400 × 550 × 510 mm (open) |
| Net weight | ~24.2 kg | Standards | CE |
*depending on feed material and instrument configuration/settings
