MSK-SFM-DS Compact Laboratory Disc Mill – Ring and Puck Crusher & Grinder
The MSK-SFM-DS is a compact laboratory disc mill featuring a manganese steel grinding assembly. Also known as a ring and puck mill or shatterbox-type mill, it is designed for rapid crushing and grinding of small samples before further fine milling or analysis.
Suitable for coal, ores, rocks, and ceramic compounds with a hardness below Mohs 8, the mill accommodates approximately 50 g of material in its 100 mL grinding jar. A fixed operating speed, adjustable timer, and lid safety interlock support convenient laboratory sample preparation.
Key Features
- Rapid sample preparation: Crushes and grinds suitable materials to approximately 80–200 mesh, depending on the sample and processing time.
- Manganese steel grinding components: Ring and puck assembly for crushing and pulverizing laboratory samples.
- Adjustable timer: Set the processing duration from 0 to 5 minutes.
- Lid safety interlock: Cuts power if the lid is opened during operation.
- Secure installation: Four mounting fixtures allow the mill to be fastened to a firm platform.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | MSK-SFM-DS |
| Mill Type | Compact disc mill / ring and puck mill / shatterbox-type mill |
| Power Supply | 220–240 V AC, 50/60 Hz |
| Motor Power | 200 W |
| Specified Current | 2.5 A |
| 120 V Operation | Requires a suitable step-up transformer rated at least 600 W; specified 120 V current: 5 A |
| Operating Speed | 825 rpm |
| Timer Range | Adjustable, 0–5 minutes |
| Grinding Components | Manganese steel ring and puck assembly |
| Grinding Jar Capacity | 100 mL |
| Sample Load | Approximately 50 g, depending on material density |
| Grinding Jar Dimensions | 120 mm internal diameter × 37.5 mm depth |
| Feed Sample Dimensions | Less than 20 mm in diameter and 35 mm in height; samples must fit within the available grinding space |
| Sample Hardness | Below Mohs 8 |
| Typical Output Fineness | Approximately 80–200 mesh, depending on material properties and grinding time |
| Safety Protection | Lid interlock with power cut-off |
| Mounting | Four fixtures for fastening to a stable platform |
Typical Applications
- Crushing and pulverizing coal, ore, and rock samples.
- Preparing ceramic compounds and sintered samples for further fine milling.
- Laboratory sample preparation for materials research and analysis.
Operating Notes
- Install the mill on a firm, stable platform and secure it using the mounting fixtures.
- Use a separate room or suitable noise-controlled area during operation.
- Clean the grinding jar, ring, and puck before each use to reduce cross-contamination.
- Process only samples below Mohs 8 and within the specified feed dimensions.
- Keep the lid closed during operation and do not bypass the safety interlock.
- Use suitable sieves after grinding when a defined powder size fraction is required.
