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SKU Ohaus-30553085
Ohaus
Ohaus 30553085 4 x 750ml Swing Out Rotor ID Sealable
$2,500.00
In stockOhaus 30553085 is a sealable swing-out centrifuge rotor with four 750 mL buckets, carrying the Ohaus ID designation within the Frontier 5000 rotor series. At 3 L total it is the largest-volume rotor in this catalogue, for bulk pelleting and cell harvesting rather than tube-scale work. Maximum speed and RCF are not stated in the documentation held for this listing.
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Description
Ohaus part number 30553085 is a swing-out rotor taking four 750 mL buckets, carrying the ID and Sealable designations in the manufacturer’s part name. Ohaus lists it within the Frontier 5000 rotor series.
In a swing-out rotor the buckets pivot to horizontal as the rotor comes up to speed, so the sediment collects flat at the base of the vessel rather than up its wall as it would in a fixed-angle rotor. That matters for bulk pelleting, where the pellet has to survive decanting, and for any work where the interface between pellet and supernatant is read or resuspended. Four 750 mL positions gives 3 L per run, the largest volume in this catalogue, against 4 x 500 mL on the fixed-angle 30553086 and 4 x 200 mL on 83041011.
Large swing-out rotors are the case where load balance and rated limits matter most, so we will not publish anything we cannot source. The documentation held for this listing does not state a maximum speed, maximum RCF, bucket or rotor material, temperature rating, containment rating, or whether buckets, bottle adapters and sealing components are supplied with the rotor. Request the current Ohaus rotor specification for 30553085 and confirm the packing list before ordering.
Frequently asked questions
What capacity does this rotor give per run?+
Four positions at 750 mL, so 3 L in total, per the Ohaus designation for part 30553085. That is the largest per-run volume in this catalogue.
Are the buckets and bottle adapters included?+
Not documented on this listing. Swing-out rotors are frequently ordered as a rotor body with buckets, adapters and seals as separate part numbers, so confirm the full packing list against the Ohaus specification for 30553085 before raising a purchase order.
Why choose a swing-out rotor over a fixed-angle rotor at this volume?+
The buckets swing to horizontal at speed, so the pellet forms flat at the base of the vessel rather than against the wall. That makes decanting the supernatant cleaner and the pellet easier to resuspend, which is usually the deciding factor for bulk harvesting. The fixed-angle alternative in this catalogue at comparable scale is 30553086 at 4 x 500 mL.
What does the Sealable designation cover?+
Sealable is Ohaus's designation in the part name. We hold no manufacturer documentation stating what containment the sealing arrangement provides or which components deliver it, and we will not infer a containment claim. Take that from the Ohaus specification for 30553085 and assess it against your local biosafety requirements.
What are the maximum speed and RCF?+
Not stated in the documentation we hold. This matters more at 750 mL per bucket than anywhere else in the range, since rated limits fall as bucket load rises and must be derated for dense samples. Request the current Ohaus specification for 30553085 and run at the lower of the rotor's and the centrifuge's rated limits.
Which centrifuges does it fit?+
Ohaus catalogues 30553085 within the Frontier 5000 rotor series. A rotor of this size is particularly dependent on the specific instrument's drive and chamber, so confirm the part number against your centrifuge's approved rotor list before ordering.
