Thermo Scientific Sorvall ST 40 Benchtop Laboratory Centrifuge

Thermo Scientific Sorvall ST 40 benchtop laboratory centrifuge, catalog number 75004510, serial number 41755310, built in 2015 (nameplate, photo 3). The ST 40 is a general-purpose, non-refrigerated benchtop centrifuge used for routine sample processing such as clinical sample separation, cell culture work, conical tube spins and microplate processing. Per Thermo's published data for the ST 40 series, the unit accepts Auto-Lock rotors with a maximum capacity of 4 x 750 mL in swinging-bucket configuration and reaches a maximum speed of 15,200 rpm and approximately 23,314 x g, depending on the rotor fitted. The front membrane keypad provides speed (rpm/RCF), time, acceleration and deceleration profile selection, bucket/rotor selection, pulse, motorized lid open, and start/stop control, with a digital display of run parameters. Six stored program positions are indicated on the left side of the panel. The nameplate rates the machine at 120 V, 60 Hz, single phase, 12 A, 1400 W power consumption, with maximum kinetic energy of 51.7 kNm and maximum filling material density of 1.2 g/cm3. It is CSA and UL listed and marked IVD; the unit was manufactured in Germany. The centrifuge was photographed in place on a wire lab shelf with its power cord present; the lid was closed, so the installed rotor and bucket set are not shown and are not confirmed as included. No information on run hours, service history or operational testing was provided with the photos.