AS18-5V Rotor: Fixed-Angle Capacity at 6,000 rpm

AS18-5V (cone bottom)（19400035）

Rotors are often specified separately from the instruments they run in, and the listed parameters here are the ones that determine whether a protocol can be transferred onto it. The AS18-5V carries an 18-position format taking 5 mL tubes, with a cone-bottom geometry noted in its name.

The stated limits are 6,000 rpm and a maximum RCF of 4020 ×g. Rotor capacity is 5 mL ×18. These figures define the separation envelope; they do not describe what sample types the rotor is validated for.

The rotor body is stainless steel, with aluminum buckets. Biosealing is listed as present, a detail relevant where aerosol containment during spinning is part of the site’s safety requirements.

The excerpt attributes these figures to DM0636, while the specification block lists 19400035 as the model. The relationship between the two identifiers is not explained in the source.

A buyer would need to confirm which centrifuge the rotor is compatible with, whether the bioseal is a lid accessory or integral, and what documentation accompanies it. None of that is stated here.

Also unstated: tube dimensions and wall thickness the buckets accept, the rotor’s maximum service life, and any derating for the aluminum components.

The rotor’s value lies in its stated limits, and the procurement risk lies in everything the listing leaves unstated. Compatibility confirmation belongs before purchase, not after delivery.

Why it matters:
Rotor specifications are only actionable when matched to a specific instrument and protocol. Verify compatibility, tube fit, and sealing configuration with the supplier before ordering.

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