Category: Operation & Use
Topic: Centrifuge Installation & Set-up
Article Title: Loading the Rotor

Check the rotor for firm seating (see Installing the Rotor). With swing-out rotors, all rotor positions must have identical buckets. Certain buckets are marked with the number of the rotor position. These buckets may only be used in the respective rotor position. Buckets that are marked with a set number (e.g. S001/4) may only be used in the set.

The rotors and buckets may only be loaded symmetrically. The centrifuge containers have to be distributed evenly on all rotor positions. For authorized combinations see the section “Rotors and accessories” and “Loading the Rotors” in the operator’s manual supplied with the centrifuge. In the case of angle rotors all possible rotor positions must be loaded. (See the previously referred-to sections)

On certain buckets, the weight of the maximum load or the weight of the maximum load and the maximum weight of the completely loaded bucket are specified. This weight must NOT be exceeded. In case of exception, see "Centrifugation of materials or mixtures of materials with a density higher than 1.2 kg/dm3" in the operator’s manual. The weight specified for the maximum load includes the total weight of adapter, frame, centrifuging container and content.

In containers that also use rubber pads or cushions, the same number of rubber pads must always be used in the centrifuge containers.

Always fill the centrifuge containers outside of the centrifuge. No liquid should be allowed to enter the centrifuging chamber during filling. The maximum filling quantity for the centrifuge containers is specified by the manufacturer and must not be exceeded. In order to maintain the weight differences within the centrifuge container as marginal as possible, particular attention should be paid to the fill level in all of the containers. This will reduce the possibility of imbalance errors occurring, as well as allow a smoother operation of the centrifuge with consistently high-quality results.