Skip to main content
v2026.11,610 entries · CC-BY 4.0

Ask a research-administration question

Answers are drawn from CASRAI and the rest of the CASRAI corpus, with a link to every source.

Answers are AI-generated from CASRAI’s own published pages and can be wrong, so check the linked sources before relying on one; your question is logged without personal data — never sold, never used to train a third-party model — to show us what CASRAI is missing, so please do not type personal or confidential details. How we use this

CASRAI is the reference for research administration — bookmark it for the next question.

Ohaus 83041009 4 x 50ml RB/FA or 15ml RB/FA Fixed Angle Rotor

SKU Ohaus-83041009

Ohaus

Ohaus 83041009 4 x 50ml RB/FA or 15ml RB/FA Fixed Angle Rotor

in Centrifuge Rotors

$565.00

In stock

Ohaus 83041009 is a fixed-angle centrifuge rotor with four positions listed for either 50 mL RB/FA or 15 mL RB/FA tubes, within the Frontier 5000 rotor series. It is the only dual-format rotor in this catalogue, covering both common conical tube sizes from one part number. Maximum speed and RCF are not stated in the documentation held for this listing.

Buying through procurement?

Generate a formal quotation for 1 × this item, plus our W-9 — everything your finance department needs to raise a purchase order.

Ordering several items? Add them to your cart, then create one quote for the whole cart.

Description

Ohaus part number 83041009 is a fixed-angle rotor with four positions, listed by Ohaus as taking either 50 mL RB/FA or 15 mL RB/FA tubes. Ohaus catalogues it within the Frontier 5000 rotor series.

This is the only rotor in this catalogue listed against two tube formats. For a bench that runs both 15 mL and 50 mL work it removes a rotor change between protocols, which in practice is the main reason to prefer it over the single-format alternatives here: 30472305, 30314834 and 30314832 in 15 mL, and the larger 30553086 at 4 x 500 mL.

What the documentation held for this listing does not say is how the smaller format is accommodated, whether by direct fit or by adapters, and whether any adapters are supplied. It also states no maximum speed, RCF, material or temperature rating, and rated limits commonly differ between the two loadings of a dual-format rotor. Request the current Ohaus rotor specification for 83041009 before assuming one rating covers both configurations.

Frequently asked questions

What tubes does this rotor take?+

Four positions, listed by Ohaus for either 50 mL RB/FA or 15 mL RB/FA tubes under part number 83041009. Confirm the tube dimensions the rotor is cut for against the manufacturer's specification before ordering consumables.

Are adapters needed for the 15 mL format, and are they included?+

Not stated in the documentation we hold. A rotor listed for two tube sizes may accommodate the smaller one by direct fit or by adapters, and we will not assume either. Confirm the arrangement and the packing list against the Ohaus specification for 83041009 before ordering.

Does the same speed rating apply to both tube formats?+

Not something to assume. Rated limits for a dual-format rotor commonly differ between loadings, and no rating of any kind is stated in the documentation we hold. Take both figures from the current Ohaus specification for 83041009.

Which centrifuges does it fit?+

Ohaus catalogues 83041009 within the Frontier 5000 rotor series. Confirm the part number against your instrument's approved rotor list before ordering.

What are the alternatives if I only run one tube size?+

For 15 mL only, this catalogue lists 30472305 at 8 places, 30314834 at 12 and 30314832 at 30. For larger volumes, 30553086 is a fixed-angle rotor at 4 x 500 mL. A single-format rotor generally gives more positions per run than a dual-format one at the same footprint.

Related products

Referenced across the research world

University of Cambridge logoColumbia University logoCrossref logoUniversity of Edinburgh logoHarvard University logoUniversity of Oxford logoPrinceton University logoStanford School of Medicine logoUniversity College London logoORCID logoUniversity of Cambridge logoColumbia University logoCrossref logoUniversity of Edinburgh logoHarvard University logoUniversity of Oxford logoPrinceton University logoStanford School of Medicine logoUniversity College London logoORCID logo
  • University of Cambridge logo
  • Columbia University logo
  • Crossref logo
  • University of Edinburgh logo
  • Harvard University logo
  • University of Oxford logo
  • Princeton University logo
  • Stanford School of Medicine logo
  • University College London logo
  • ORCID logo

View CASRAI adoption →