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Freezer/Mill® Cryogenic Grinders

The Freezer/Mill® is a programmable cryogenic mill specifically designed for grinding and pulverizing tough or temperature sensitive samples. Samples are placed in a sealed cryogenic grinding vial then immersed in liquid nitrogen (LN). The samples are cooled to cryogenic temperatures then pulverized 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.

The new high resolution display of our Freezer/Mill® Cryogenic Grinders is user-friendly and includes the following features:

  • Run history which is uploadable to a thumb drive via USB
  • Training videos and manuals that can be viewed on the screen.
  • A complete listing of accessories

Cryogenic Grinding Applications include: 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 include: Animal tissue, plastic and polymers, yeast cultures, pharmaceuticals, food products, electronic components, textiles, hair, teeth, bones, plant tissue, packaging, patches (e.g. nicotene).

6875D 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.

6875 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.

6775 Freezer/Mill® Cryogenic Grinder

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.