Freezer/Mill^® Cryogenic Grinders

Laboratory Equipment for Sample Preparation & Handling

Programmable cryogenic mill specifically designed for grinding and pulverizing tough or temperature sensitive samples

Key Features
- High resolution display user-friendly applications and view training videos and manuals
- Access run history uploadable to a thumb drive via USB
- Cryogenic Grinding Applications DNA/RNA or protein extraction from tough tissue samples and yeast cultures,THC extraction, forensic testing, drug testing, RoHS/WEEE and volatiles extraction, contamination testing in pharmaceutical products and packaging following USP method 232.
- Typical samples animal tissue, plastic and polymers, yeast cultures, pharmaceuticals, food products, electronic components, textiles, hair, teeth, bones, plant tissue, packaging, patches (e.g. nicotene).

Samples are placed in a sealed cryogenic grinding vial in the Freezer/Mill®, then immersed in liquid nitrogen (LN). The samples are cooled to cryogenic temperatures then pulverised by magnetically shuttling a steel impactor back and forth against two stationary end plugs.

Each Freezer/Mill® cryogenic grinder has an insulated nitrogen tub equipped with an LN sensor. A touch screen control panel controls the grinding cycles, grinding time, impact rate as well as pre-cooling and cooling times.

Since the vial is closed, the cryogenic grinder maintains integrity of its contents, hazardous or critical samples are easily controlled, cleanup is simplified and cross-sample contamination is eliminated.

FreezerMill® Accessory Manual

CG-200 Freezer/Mill® – Cryogenic Grinder

The Cole-Parmer CG-200 cryogenic grinder (formerly SPEX SamplePres FM-6775) features:
- Small cryogenic mill that grinds up to 0.1 – 5 grams of sample
- Insulated liquid nitrogen tub is equipped with LN level sensor
- Lid safety interlock for operator protection
- Grinding Vial Sets offered in a variety of materials including polycarbonate, stainless steel, and Cr-free steel
- Grinding chamber holds one small grinding vial or one microvial set

CG-400 Freezer/Mill® – High Capacity Cryogenic Grinder
- Large cryogenic mill that accommodates sample sizes ranging from 0.1 – 100 grams
- Liquid nitrogen required for operation
- Equipped with liquid nitrogen level sensor, insulated case and lid safety interlock switch for operator protection
- Grinding Vial Sets offered in a variety of materials including polycarbonate, stainless steel, and Cr-free steel
- Grinds samples in the 0.1 – 100 gram range
- Grinding chamber holds one large grinding vial, one mid-size vial, four standard grinding vials or four microvial sets
- Auto-Fill System available for automated filling with liquid nitrogen – Order model number 6875A Freezer/Mill

CG-500 Freezer/Mill® – Dual Chamber Cryogenic Grinder
- High-Throughput, cryogenic grinder with dual cooling & grinding chambers
- Accommodates 0.1 – 100 grams per chamber
- Magnetically driven impactor is the only moving part so there are no mechanical linkages or bearings to fail
- Auto-Fill System available for automated filling with liquid nitrogen
- Liquid nitrogen required for operation
- Equipped with liquid nitrogen level sensor, insulated case and lid safety interlock switch for operator protection
- Grinding Vial Sets offered in a variety of materials including polycarbonate, stainless steel, and Cr-free steel.