Freezer Mill 6970 EFM – Large High-Throughput Cryogenic Mill
The latest advance in cryogenic grinding. Our 6970EFM Freezer/Mill® is a large high-throughput cryogenic mill that accommodates samples from 0.1 – 100 grams (0.1 – 50 mL). It is specifically designed to grind through the toughest samples and temperature sensitive samples through the use of magnetically-driven impactors. The 6970EFM is available in single and dual grinding chamber models for increased sample throughput. Chambers can be programmed for independent operation and different protocols, providing flexibility and speed.
Typical Samples
Typical samples include
- Plant & animal tissues
- Seeds
- Plastic and Polymers
- Pharmaceuticals
- Food products
- Electronic components
- Textiles
- Hair
- Teeth
- Bones
Features
Features of the Spex Freezer/Mill 6970EFM include:
- For samples that are impossible to grind at abmient temperature
- Backed by SPEX SamplePrep’s 40 years of experience in cryogenic grinding
- DNA/RNA extraction without shearing
- No loss of volatile compounds
- Samples are maintained at Liquid Nitrogen (LN) temperatures
- Vials can be cleaned or discarded to eliminate possibility of contamination
- Totally enclosed LN auto-fill system with no LN exposure
- CE Compliant
- Unique maintenance free design, only one moving part
- Entire system is controlled by a touch screen interface capable of storing up to 10 grinding programs for rapid process replication and consistency
- Grinding vials available in a range of sizes from 0.1 to 100g
Specifications
| Dimensions | 22.0in (56cm) high x 18.25in (46.4cm) wide x 17in (43.2cm) deep |
| Voltage | 240V/50Hz |
Vial Volumes
| Micro | Small | Medium | Large | |
|---|---|---|---|---|
| Maximum Capacity | 0.5mL | 4mL | 25mL | 50mL |
| Recommended Sample Capacity | 0.1-0.2mL | 1-2mL | 5-10mL | 10-20mL |
| Recommended Sample Capacity (approx) | 30-200mg | 1-4g | 40g | 10-40g |
Applications
SPEX Freezer Mills are suited to a wide range of different samples, these include:
Life Science
- DNA/RNA extraction
- Yeast analysis
- Pharmaceuticals
- Drug testing
- Cannabis research
- Food testing
- Animal tissue
- Plant tissue
- Human tissue (incl. hair, teeth, bones, etc.)
Materials Science
- Plastics and polymers
- Composite materials
- Textiles
- Electronics
- RoHS/WEEE
Application Examples
| Potato |  |  |  |
| Beef Lung |  | |  |
| Hair |  | |  |
| Polyethylene Beads |  | |  |
| Plastic Toys |  | |  |
| Dog Treats |  | |  |
End Plug Extractors
SPEX FreezerMill® on CSI Miami
| Micro | Small | Medium | Large | |
|---|---|---|---|---|
| Part No. | 6757 Polycarbonate cylinder, stainless steel end plugs and impactor | 6751 Polycarbonate cylinder, stainless steel end plugs and impactor | 6881 Polycarbonate cylinder, stainless steel end plugs and impactor | 6801 Polycarbonate cylinder, stainless steel end plugs and impactor |
| Maximum Capacity | 0.5mL | 4.0mL | 25mL | 50mL |
| Recommended Capacity | 0.1-.02mL | 1-2mL | 5-10mL | 10-20mL |
| Recommended Capacity | 30-200mg | 1-4g | 5-40g | 10-40g |
| Diameter (Length 137mm including end caps) | 9.5mm | 22mm | 38.5mm | 57mm |
| Freezer Mill 6770/6775 | 1 Set (3 total) | 1 | NA | NA |
| Freezer Mill 6870/6875 | 4 Sets (12 total) | 4 | 1 | 1 |
| Freezer Mill 6870D/6875D | 8 Sets (24 total) | 8 | 2 | 2 |
| Freezer Mill 6970 | 8 Sets (24 total) | 8 | 2 | 2 |
| Note: Capacities are a guide and will depend on density. |
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