50 ml Tube Holder, Solid Aluminum
This tube holder is machined out of a 1.5 lb aluminum block and has the dimensions of a standard 2ml deep well microplate. It is used with the MiniBeadbeater-96 cell disrupter. One or two 50 ml screw cap centrifuge tubes are placed completely inside the cold block and the contents shaken in a "wall to wall" direction. The block can be pre-cooled in a freezer or, at cryo-temperatures, with dry-ice or liquid nitrogen.
Included with each vial block are 25 sterile, polypropylene 50 ml screw cap tubes (Stockwell brand, part # 3252).*
*Important note: To maximize the efficiency of heat transfer, this aluminum tube holder was designed to fit with close tolerance to a Stockwell brand 50 ml tube. Other brands of 50 ml centrifuge tube may not fit properly. If you need to use a different brand tube, please check with us first for compatibility.
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An important accessory for the MiniBeadbeater-96 when temperature control is a concern*. Typically, a vial filled with beads, sample and extraction media warms up ~10 degrees per minute of beadbeating. Our 2 ml vial holder (capacity 48 vials) and 50 ml tube holder (capacity 2 tubes) are machined out of high-heat-conductivity aluminum. The vial holders are pre-cooled to low temperatures to provide strict maintainence of low sample temperature during the bead beading process. The cooling efficiency of a close fitting, cold aluminum vial holder is far superior to cold-room air or cold air attachments used by other bead mill cell disruptors.
* Nucleic acid extraction of microorganisms or tissues in the presence of nucleic acid extraction media generally do not require temperature control.