Beckman Coulter Microfuge 22R Refrigerated Microcentrifuge

Beckman Coulter Microfuge 22R refrigerated benchtop microcentrifuge, Cat No 368826, used for pelleting DNA, RNA and proteins and for general microtube work in research laboratories. The nameplate on the rear of the unit reads MICROFUGE 22R Centrifuge, CAT NO 368826, SER MHB09J021, 120V, 6.9A, 60Hz, with a manufacturing date of 2009-06-24 and Made in Germany. The unit is a self-contained refrigerated microcentrifuge with a maintenance-free brushless drive, published maximum speed of 14,000 rpm (up to approximately 21,920 x g) and a temperature control range of roughly -10 to +40 degrees C, allowing samples to be held near +4 degrees C at full speed. Cooling is provided by an integral R-134a refrigeration system (0.140 kg charge per the rear notice label). The front control panel carries analog-style rpm/rcf, time and temperature scales with START, STOP and DOOR keys and two adjustment knobs, and the lid is a spring-assisted hinged type marked PRESS HERE TO CLOSE. The chamber is fitted with a black fixed-angle microtube rotor with 24 numbered positions for 1.5/2.0 mL tubes, shown installed in the photos. The rear panel includes the IEC power inlet, rocker power switch and fuse holder; a detachable power cord is shown with the unit. The bowl and exterior show general cosmetic wear and residue consistent with laboratory use, and an American Laboratory Trading service/inventory sticker is affixed to the front housing. The unit sits loose on a bench and requires no decommissioning beyond unplugging. Operating condition has not been verified and no field notes on function were provided; the centrifuge is offered as-is with the rotor pictured.