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Item 1267D CENTRI - Beckman Optima L-90K

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Beckman Coulter Optima L-90K ultracentrifuge

  • Maximum speed: 90,000 rpm
  • Rotors available, sold separately; call or email for info on available models
  • 90 day warranty

The Beckman Coulter Optima L-90K can generate 694,000 x g at its top speed of 90,000rpm, so your lab will be able to increase throughput by performing more separations in less time. Beckman’s Optima L series centrifuges utilize vacuum-encased, air-cooled induction drives to provide the most energy-efficient ultracentrifugation system ever made, as well as an environmentally friendly cooling system that is CFC-free. The Optima L-90K is perfect for applications such as high-purity plasmid DNA, subcellular particles and virus isolations. It is compatible with over 30 different rotors, including Beckman SW series rotors, NVT rotors, and zonal and continuous flow models. (Please call or email us for rotor supply and availability.) Additionally, imbalance-tolerant drive safety allows for tubes that are over- or under-filled by as much as 10%. If you’re looking for an ultracentrifuge for your labs routine separation needs, the Optima L-90K is a versatile, reliable, and easy to operate machine that can provide you years of great work.

Our technicians test the performance of all centrifuges and make sure the rotating assembly is properly balanced; the bearings, seals and gaskets on the spindle assembly are in good shape; and the controls work properly. If the centrifuge is refrigerated we also test to make sure that the machine reaches and hold temperature properly. All tolerances are measured and the exterior and interior of all units are fully cleaned. If the unit is being purchased with a rotor we test the rotor/centrifuge combination together.

Click Hereto see the Beckman Optima L-90K on the American Instrument Exchange YouTube channel.

Beckman Coulter Optima L-90K ultracentrifuge Specifications

Speed Range

1,000 rpm to 90,000 rpm depending on rotor selection


47.5”H x 37”W x 26.5”D


1,025 lbs.

Acceleration Profiles

Two (fast – 0rpm to set speed) (slow – 0rpm to 500rpm, then to set speed)

Deceleration Profiles

Three (fully dynamic, slow, no brake)

Noise Level

57 dBA


S Classification: uses all Beckman preparative rotors except Types 35 and 42.1 models

Please call or email us today for pricing and additional information regarding the Beckman Coulter Optima L-90K ultracentrifuge.


The photos aboveare representative. The equipment shown is currently in storage in our warehouse. In addition to testing each machine we clean all equipment thoroughly prior to shipment. We often have multiple units of each model in stock and sometimes we're unable to feature pictures of every single unit. At your request, we can provide pictures of the equipment in your order after it has been tested and cleaned.


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1267D CENTRI   -   Beckman Optima L-90K

American Instrument Exchange, Inc.
1023 Western Avenue
Haverhill, MA 01832

Phone: 978-521-2221
Fax: 978-521-8822


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