The PreCool ASC30 is an auto sample changer for NMR that includes sample cooling. It is designed as a safe, simple, compact device that holds samples waiting to be measured at about 4°C. This minimizes the degradation of temperature sensitive samples. The sample carousel at an easily-accessible height, and the samples are transported into the superconducting magnet by the sample changer, so there is no need for a ladder or stairs to load samples into the Pre-Cool ASC30 sample changer. In addition, since the ASC30 pickups the sample holder not the NMR tube, it is possible to safely transfer sample tubes with a variety of shapes and sizes.