The DF-4 electromagnetic ore sample crusher utilizes the principle of electromagnetic vibration to directly drive the vibration tube to hit and crush materials at a high speed (3,000 times per minute). It has the advantages of high efficiency, small size, light weight, no noise, and no dust. It is a sample preparation tool that can replace various types of sample crushers (and all kinds of mortars) for quickly preparing analytical samples. It is widely applicable to laboratories in various industries such as mining, building materials, cement, metallurgy, chemical engineering, coal, and grain. It is particularly suitable for the preparation of fly ash samples in thermal power plants.

Performance characteristics： 

1. Using the principle of electromagnetic attraction, it drives the material tube to quickly crush materials into a fine state.

2. Without transmission components, it has the advantages of small volume, light weight, long service life, and is suitable for users with small sample preparation quantities.

3. It has a fast crushing speed and is fully enclosed, eliminating the drawback of dust flying. It is an upgraded product of disc and eccentric rotation crushers.

4. It is suitable for coal, mining, cement, electric power, chemical industry, import and export commodity inspection departments to quickly crush various samples.

Technical Parameters：  

1. Feed particle size	15mm
2. Discharge particle size	<200 mesh; experimental analysis can be conducted without sieving
3. Loading capacity	40-80g (around 60g is optimal)
4. Working time	0-5 minutes, adjustable (generally not exceeding 2 minutes)
5. Power supply	220V 50Hz
6. Working current	6A
7. Weight	18kg
8. Overall dimensions	220*250*250mm

The number of material cups can be equipped according to the types of samples to be crushed, with each cup dedicated to a specific sample. There is no need to clean the material cup after grinding the sample.