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This Beckman J2-21 Floor Standing Centrifuge was removed from a university lab where it was surplus to requirements.
We have replaced the lid and repaired an area of cracked plastic underneath it. It is very stable. There are some cracks around the gas strut area. They do not appear to affect the operation of the unit.
The unit is functional and has a comprehensive service history.
The centrifuge holds a vacuum well and has been tested at:
5,000rpm10,000rpm15,000rpm20,000rpm (Max).
It ran fine at all these speeds but the needle isn't totally in sync with the control knob.
It has been tested at the following temperatures:
0ºC our thermometer read -15.8ºC20ºC our thermometer read 21.2ºC
It appears to probably have a cooling issue. The compressor etc runs fine. It just appears to drop lower than it is set. When set to higher temps, it takes quite a while to heat up.
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