Materials - Beckman Coulter Avanti J Series Instructions For Use Manual

Materials

Most Beckman Coulter J series rotors are made of aluminum and are anodized to protect the metal
from corrosion. (The JS-13.1 and JS-7.5 rotors are painted with polyurethane paint and are not
anodized.) The anodized coating is a thin, hard layer of aluminum oxide formed electrochemically
in the final stages of rotor fabrication. A black or colored dye may be applied over the oxide for rotor
family identification. The coating can be damaged if careful cleaning procedures are not followed.
Therefore, it is especially important to clean aluminum rotors with brushes that will not scratch the
anodized coating and to use a noncorrosive, neutral-pH detergent. Refer to
and maintenance procedures.
Windshield
Aluminum-
Composite
Interface
Outside
Wall
Snap
Down
PN JR-IM-10AG
Some J series rotors have attached windshields to
reduce air friction. The windshields are made of
anodized aluminum
Canisters used in some J-Lite rotors are made of
lightweight carbon fiber epoxy composite. The
Sealing
lightweight canisters make the overall rotor weight
Surface
significantly lighter than a comparably sized all-
aluminum rotor. Each canister has a sleeve washer,
made of polytetrafluoroethylene and polyetherimide
Sleeve
(PEI), which acts as a sleeve between the canister and
Washer
the aluminum rotor body. A lubricated ethylene
propylene rubber O-ring inside the canister closure
helps create a secondary seal during centrifugation.
Transparent plastic covers are available for some
Vent Plug
swinging-bucket rotor buckets, to help contain spills
Cover
and glass particles in the event of tube breakage. The
Spring
covers are made of high-impact polyetherimide (PEI).
Latch
Each cover requires an O-ring.
The O-rings or gaskets in rotor assemblies with lids are
made of Buna N elastomer and maintain atmospheric
pressure in the rotor if they are kept clean and lightly
coated with silicone vacuum grease. Plug gaskets in
vertical-tube rotors are made of thermoplastic
polyester elastomer and do not require coating.
Rotors
General Description
CHAPTER 7 for cleaning
1-3
1