Fisher Marathon 21K/BR

Sorry, this unit has just been sold. Please contact us for alternatives.

Item: 1279 CENTRI


All products ship from our 30,000 sq. ft. Haverhill, MA warehouse

Contact Us

Call 978-521-2221
to request information & pricing for item 1279 CENTRI

90-Day Warranty

American Instrument Exchange
Contact us for all your used lab equipment needs

1023 Western Ave.
Haverhill, MA 01832

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


Shipping Policy

Fisher Marathon 21K/BR refrigerated benchtop centrifuge

  • Max speed: 13,300 rpm
  • Max capacity: 4 x 290mL
  • Temperature range: -20°C to 40°C
  • 90 day warranty

The Fisher Marathon 21K/BR refrigerated centrifuge is being sold with a 4 x 290mL swinging bucket rotor and two buckets.

Fisher Marathon 21K/BR refrigerated benchtop centrifuge specifications

Speed range

0 to 13,300rpm, depending on rotor selection


4 x 290mL

All of our equipment is used and reconditioned. 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.

Our technicians inspect all rotors, including any buckets, gaskets and overspeed disks. Fixed angle rotors are closely inspected for body integrity; swinging bucket rotors supplied with buckets are checked for proper weight distribution. When possible we run each rotor in a compatible centrifuge to make sure the rotor spins properly.

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

Please call 978-521-2221 or email us today for pricing and additional information regarding the Beckman TJ 25 benchtop centrifuge.