The involuntary cell washing system for the serological testing makes routine tasks possible in transfusion center laboratories. A rotor of either 12 or 24 tubes can be used as required. Both the rotors accept the quality tubes of 10 x 75 mm or 12 x 75 mm. For using the 10 x 75 mm tubes, adapters No. 1019 is used. Maximum capacity of swing-out rotor is 24 standard tubes of dimensions 10 x 75 mm or 12 x 75 mm and maximum speed of 3,500 RPM/min. Its maximum RCF is 1,438. The product's dimension is 278 x 333 x 420 mm, weighs approximately 24 kg and has air cooling refrigeration.