Spacers And Floating Spacers; Adapters; Bottle Adapters; Multitube Adapters - Beckman Coulter Avanti J Series Instructions For Use Manual

Spacers and Floating Spacers

Spacer
Floating
Spacer

Adapters

Many rotors can accommodate a variety of tube sizes by using adapters that line the tube cavity or
bucket. Adapters are fabricated of several different kinds of materials, depending on the rotor and
the tube to be used in them. Some of the common materials are acetal, modified polyphenylene
oxide, polyethermide (PEI), polyethylene, rubber, polypropylene, and glass-filled or foamed
polypropylene.
Tubes or bottles used with adapters can be filled (and capped, if applicable), according to the type
of tube and the design of the rotor being used.

Bottle Adapters

Bottle
Adapter

Multitube Adapters

Adapters are used to enable centrifugation of multiple tubes in the bucket of a swinging-bucket
rotor or in a fixed-angle tube cavity.
PN JR-IM-10AG
Quick-Seal tubes require spacers made of anodized aluminum, with or without
floating spacers. The particular combination depends on the type of rotor being
used and the tube size.
• In swinging-bucket and fixed-angle rotors, the top of the tube must be
supported.
• In vertical-tube rotors, the entire cavity must be filled.
Plastic spacers have been tested for centrifugation between 2 and 25°C. If
spacers are centrifuged at temperatures significantly greater than 25°C,
deformation of the spacer and tube may occur.
Bottles are often supported during centrifugation in bottle adapters that fit
inside the rotor buckets or cavities. The adapters are usually ribbed for strength
and support a variety of bottle sizes.
To prevent the bottles from stretching or breaking, a plastic sleeve, or adapter,
must be used around each Beckman Coulter 1-liter bottle during centrifugation
in J6 series rotors. In other rotors, if the bottles fit snugly in the buckets, the
adapters are not required. (Refer to the applicable rotor manual.)
Tubes, Bottles, and Accessories
Spacers and Floating Spacers
2
2-7