Roller shaker with 6 or 10 rolls, with smooth rocking and rolling action and a fixed speed. Particular for mixing blood samples, solid and liquid suspensions and viscous samples. The unit can be used for all conventional tubes and cylindrical bottles. The easy removable rolls allow simple and quick cleaning of the unit from spilled samples. - Usable at 4 to 50 °C in incubators. - Suitable for continuous operation. - By removable rolls suitable for larger tubes. - Easy operation by foil keypad. Roller shaker with 6 or 10 rolls, with smooth rocking and rolling action and a fixed speed. Particular for mixing blood samples, solid and liquid suspensions and viscous samples. The unit can be used for all conventional tubes and cylindrical bottles. The easy removable rolls allow simple and quick cleaning of the unit from spilled samples. - Usable at 4 to 50 °C in incubators. - Suitable for continuous operation. - By removable rolls suitable for larger tubes. - Easy operation by foil keypad.