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Beckman Coulter MLS 50 Swinging-Bucket Ultracentrifuge Rotor, 4 × 5 mL, 50,000 rpm

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Centrifuge Class
High-Speed, Ultracentrifuge
Rotor Type
Swing-Out
Max Speed
50000 rpm
Max RCF
302000 × g
Tube Volume
5 mL
All 9 specifications
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Specifications 9

Brands
Beckman Coulter
New/Used
Used
Centrifuge Class
High-Speed, Ultracentrifuge
Rotor Type
Swing-Out
Max Speed
50000 rpm
Max RCF
302000 × g
Tube Volume
5 mL
Sample Capacity
4 positions
Detail
Rotor Included

Product description

Beckman Coulter MLS 50 rotor with 4 × 5 mL capacity, 50,000 rpm and approximately 302,000 × g RCF.

The Beckman Coulter MLS 50 is a high-speed swinging-bucket ultracentrifuge rotor designed for Beckman Coulter Optima MAX and MAX-E ultracentrifuges. It supports small-volume sample processing with a capacity of 4 × 5 mL and a maximum speed of 50,000 rpm.

  • Rotor type: Swinging-bucket
  • Maximum speed: 50,000 rpm
  • Maximum RCF: Approximately 302,000 × g
  • Capacity: 4 × 5 mL
  • Tube compatibility: Thin-wall or thick-wall tubes, depending on the tube configuration
  • Material: High-strength anodized aluminum
  • Weight: Approximately 1.5 kg
  • Temperature use: Suitable for refrigerated applications
  • Lid: Screw lid with safety lock
  • Included components: Four 43.9 g buckets/hangers, replacement lid gasket 975001, and replacement bucket gasket 824412

The swinging-bucket design positions tubes horizontally during centrifugation, supporting efficient sedimentation and sharp fractionation. This Beckman Coulter ultracentrifuge rotor is suitable for molecular biology, biochemistry, cell biology, biotechnology, and sample-preparation workflows, including applications involving nucleic acids, proteins, organelles, and subcellular fractions.

The rotor is described as rarely used and in very good used condition, with no visible damage, corrosion, or imbalance. It has been tested and is ready for use.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 4 November 2026