The centurion cell washing system can simplify work and save time in the washing of blood cells for antiglobulin reagent tests. The instruments 12 place rotor accepts both 10 x 75mm and 12 x 75mm tubes. Being a manual cell washing system means our users can be precise and sure of exact saline amounts administered by themselves. These machines are perfect for performing blood grouping, blood typing, cross matching, ABOcompatibility, RH testing and the Coombs test procedure. - A manual washing cycle includes the following steps: - Filling with saline solution - Centrifuging at (usually ) 3,500 rpm for 1 min - Decanting the supernatant - Resuspending the sediment between cycles Cell Washer Accessories PLEASE NOTE our Cell washing machine is supplied complete with rotor and 2 x 12 holders Rotor for CW12 2 sets supplied, 12 of each size High quality Polypropylene. Autoclaveable. The rotor in this device can be detached and efficiently functions as a holder in which test tubes can be filled, centrifuged transported, incubated and emptied without the necessity for individual handling. Adaptors for CW12 Our adaptors enable the rotor to handle both 10 x 75mm and 12 x 75mm tubes.The included rotor carries 12 tubes but can operate with any balanced load of fewer tubes and any combination of sizes as long as these are properly balanced. This offers complete flexibility for the user.