A separator includes a housing that is stationary during operation and designed as a tank having at least two openings. A drum located inside the housing can be rotated about an axis of rotation, the drum having an axis of rotation and at least one opening. A gap is formed at least in sections or continuously between the drum and the housing. The separator also includes a support and drive device having at least two support and/or drive units, which keep the drum suspended inside the housing, supported, and/or set in rotation. One of the support and/or drive units is a first magnetic bearing that at least axially supports the drum and to keep it suspended. At least one other of the support and/or drive units is axially supports the drum.

A separator includes a housing that is stationary during operation and designed as a tank having at least two openings. A drum located inside the housing can be rotated about an axis of rotation, the drum having an axis of rotation and at least one opening. A gap is formed at least in sections or continuously between the drum and the housing. The separator also includes a support and drive device having at least two support and/or drive units, which keep the drum suspended inside the housing, supported, and/or set in rotation. One of the support and/or drive units is a first magnetic bearing that at least axially supports the drum and to keep it suspended. At least one other of the support and/or drive units is axially supports the drum.

Provided is a centrifuge apparatus for a processing cartridge, including a rotary plate and at least one cartridge holder, and the cartridge holder is rotatable around its centre axis and arranged off-centre the centre axis of the rotary plate and comprises an inner side wall surrounding a through-going passage, wherein the through-going passage is able to accommodate the processing cartridge; and the inner side wall includes a resilient locking assembly for interaction with at least one cooperating first abutting surface on the processing cartridge, such that the processing cartridge may be inserted into the through-going passage and releasably secured by the locking assembly; and at least one stopping element for interaction with at least one cooperating second abutting surface on the processing cartridge, the at least one stopping element being arranged to retain the processing cartridge at a desired vertical level when the cartridge is releasably secured.

Provided is a centrifuge apparatus for a processing cartridge, including a rotary plate and at least one cartridge holder, and the cartridge holder is rotatable around its centre axis and arranged off-centre the centre axis of the rotary plate and comprises an inner side wall surrounding a through-going passage, wherein the through-going passage is able to accommodate the processing cartridge; and the inner side wall includes a resilient locking assembly for interaction with at least one cooperating first abutting surface on the processing cartridge, such that the processing cartridge may be inserted into the through-going passage and releasably secured by the locking assembly; and at least one stopping element for interaction with at least one cooperating second abutting surface on the processing cartridge, the at least one stopping element being arranged to retain the processing cartridge at a desired vertical level when the cartridge is releasably secured.

A method for separating a cell culture mixture utilizes a centrifugal separator including a stationary frame, a rotatable assembly and a drive unit for rotating the rotatable assembly relative the frame around a vertical axis of rotation. The rotatable assembly includes a rotor casing enclosing a separation space in which a stack of separation discs is arranged to rotate around an axis of rotation. The rotor casing includes a mechanically hermetically sealed inlet for supply of the cell culture mixture to the separation space and first and second mechanically hermetically sealed liquid outlets. The second mechanically hermetically sealed outlet is arranged at an axial end of the rotor casing and arranged so that the separated cell phase is discharged at the rotational axis.

An exchangeable separation insert for a centrifugal separator includes a feed inlet, a light phase outlet and a heavy phase outlet. Two of the feed inlet, light phase outlet and heavy phase outlet are arranged at a first axial end of the rotor casing. A first seal assembly seals and connects the two inlet/outlets to a corresponding inlet conduit and/or outlet conduits in the first stationary portion. The first seal assembly includes a rotatable part and a stationary part. The rotatable and stationary part are axially aligned and seal against each other. A first of the two inlet/outlets is arranged axially at the axis of rotation and a second of the two inlet/outlets is arranged axially outside of the first of the two inlet/outlets in such a manner that both the first and second of the two inlet/outlets are led through the rotatable part and the corresponding inlet conduit and/or outlet conduits are led through the stationary part of the first seal assembly.

An exchangeable separation insert for a centrifugal separator includes a feed inlet, a light phase outlet and a heavy phase outlet. Two of the feed inlet, light phase outlet and heavy phase outlet are arranged at a first axial end of the rotor casing. A first seal assembly seals and connects the two inlet/outlets to a corresponding inlet conduit and/or outlet conduits in the first stationary portion. The first seal assembly includes a rotatable part and a stationary part. The rotatable and stationary part are axially aligned and seal against each other. A first of the two inlet/outlets is arranged axially at the axis of rotation and a second of the two inlet/outlets is arranged axially outside of the first of the two inlet/outlets in such a manner that both the first and second of the two inlet/outlets are led through the rotatable part and the corresponding inlet conduit and/or outlet conduits are led through the stationary part of the first seal assembly.

A solid bowl centrifuge includes a rotatable drum having a cylindrical portion with length L.sub.1 and a conical portion with length L.sub.2, which, when added, give the length L.sub.T of the drum. A screw is arranged in the drum and is rotatable relative to the rotatable drum with a differential speed. At least two drum bearings for supporting the drum in the housing are spaced apart with a spacing L.sub.L. A spacing L.sub.L of the drum bearings for supporting the drum relative to one another is less than the length L.sub.T of the drum.

A solid bowl centrifuge includes a rotatable drum having a cylindrical portion with length L.sub.1 and a conical portion with length L.sub.2, which, when added, give the length L.sub.T of the drum. A screw is arranged in the drum and is rotatable relative to the rotatable drum with a differential speed. At least two drum bearings for supporting the drum in the housing are spaced apart with a spacing L.sub.L. A spacing L.sub.L of the drum bearings for supporting the drum relative to one another is less than the length L.sub.T of the drum.

The invention relates to a rotor (10) of a dual centrifuge wherein the rotor has a rotor head (12) and an additional rotational mechanism for at least one rotational unit (22) which is provided in the rotor head (12) and comprises a bearing unit (70) and a rotational head (24) that is connected to the bearing unit (70) which is rotatably mounted and can be driven relative to the rotor head (12) by an additional rotational mechanism, an opening (16) for the rotational unit (22) being provided in which the rotational unit is accommodated and by means of which the bearing (70) is arranged such that it is fixed relative to the rotor head (12). The invention is characterized in that the rotational unit (22) has a housing (26) in which the bearing unit (70) is accommodated and in which the rotational head (24) engages, and in that the housing (26) and the rotational head (24) form, with bearing unit (70), a structural unit, the housing (26) being mounted such that it cannot rotate relative to the rotor head (12) and such that it can be detached from the rotor head.