All in one unit from micro tube rotors to multi-place swing rotors.
A reliable trump card for centrifuge operations.
The CAX-371, a high-performance refrigerated centrifuge that combines functions of high speed micro centrifuge and versatile low speed centrifuge into one compact model, meets a wide range of applications.

*1 In case of CAX-371. The reduction rates of power consumption vary from model to model and may vary from one product to another.

 2Activating the power-saving [ECO] mode can also help reduce the power consumption during the waiting time (standby cooling) by allowing the temperature control bands to be changed.The chamber can cool down to the set temperature within approximately 3 minutes (*2) after release from ECO mode.

*2 Under the conditions: set temperature of 4℃ at an ambient temperature of 25℃.

Power consumption at ECO mode


  • Measurement conditions: Set to 4℃ at an ambient temperature of 25℃ while centrifugation is stopped.
    (Rotors in use: CAX-371: TS-7C+7215-06)
  • The values shown above are average values obtained by measuring the units.


Three-step acceleration and three-step and natural deceleration


Initial values for acceleration and deceleration characteristics are set from 0 to 500rpm, however, they can be varied up to maximum speed in 100rpm increments by function settings.

From micro tubes to 250ml bottles

The CAX-371, with the ability to accommodate micro tubes to 250ml bottles or deep well plates, is ideal for wide range of applications. Using an optional bucket cap kit B43311*, various types of rotors including swinging bucket rotors of biohazard-proof can be mounted.

Convenient flashing function

Convenient flashing function allows operation with preset centrifuging conditions.

*Bucket cap kit B433 is an optional kit.
11 This highly sealed rotor, which has been tested and certified by the Health Protection Agency (HPA, UK) to be compliant with the International Standard (Annex AA of the IEC 61010-2-020), meets requirements for biohazard safety. [Bucket cap kit B433] is an optional kit.

Compact Design

Compact design for minimum space requirement



With its compact design of 462mm width and 559mm depth it is ideally suited to applications where space is limited.

Easy to see and operate control panel


asy-to-see LCD monitor display shows various information including remaining run time, error messages, rotor types in use and records of centrifugal operation. The monitor can display in English or Japanese.

7*Indication displays on the control panel in the photo is different from displays of actual operation.
Dual color LED display allows the user to monitor the operation status just by looking the display; red indicates that the rotor is spinning while green indicates the rotor is stopped.


9Popular user-friendly Jog Dial equipped with an <ENTER> button on top enables setting to be changed quickly and more surely.

Safety & Ecology

Flap-drive system for safer and more efficient operation


Innovative Flap-drive system employed to maintain safe and efficient centrifugal operation allows a margin of error and eye-balancing of sample tubes.
*Some rotors are excepted.

  • The CAX-371 is equipped with a function to automatically reduce the rotation speed and shut the system down if it is being run over the imbalance tolerance limit.
  • Non-chlorine, ozone-friendly refrigeration medium which has zero ozone layer destruction coefficients is adopted.

One-push rotor locking knob

With a single knob push, the rotor can be quickly and securely fixed.
*Some rotors are excepted.

Flex-Spin Drive

The Flex-Spin Drive features a flexible motor shaft that equalizes minor imbalances without damaging the centrifuge or triggering the imbalance protection system. This allows excellent tolerance for minor differences in sample volumes.




Maximum Speed


Maximum RCF


Maximum Capacity

1,000ml (250ml x 4)

Control System

Microprocessor control (feedback system)

Drive Motor

Induction motor

Drive System

Flex-Spin drive system (Direct drive with an automatic alignment function)

Data Entry

Jog Dial

Temperature Setting Range

From -9℃ to +35℃ (1℃ increments)

Speed Setting Range

100 to 15,000rpm (100rpm increments)

RCF Setting Range

10 to 21,130G
(10G increments for the range less than 300G,100G increments for the range over 300G)

Time Setting Range

From 10 sec to 50 sec, in 10 sec increments, from 1 min to 99 min, in 1 min increment
or <F–> for free

Safety Devices

• Imbalance detector, • Lid interlock, • Lid open/close detector, • Abnormal speed detector,
• Over-current circuit breaker, • Rotor identification system, • Motor over-current detector,
• Abnormally high or low chamber temperature detector.

Additional Functions

• Three-step acceleration characteristics selection, • Three memory function,
• Three-step deceleration characteristics selection, • FLASH (momentary spin) function,
• BART Code selection, • Power saving (ECO) mode.


HFC134a (280g)

Rated Voltage

AC120V, AC220/230/240V

Rated Current

120V : 12A, 220/230/240V : 6A

Power Requirements

Single phase 50/60Hz, AC120V 15A, AC220/230/240V 8A

Power Consumption(Heat output)

1,040W (900kcal/h)


Rated breaking current 120V : 15A, 220/230/240V : 7.5A

Protection Against Electric Shock

Class I

(except protruding portion)

462W x 559D x 939H mm, (table height; 776mm)

Net Weight

118kg (120V) 123kg (220/230/240V)

Environmental Requirements

Ambient temperature range:10 to 35℃, Relative humidity:30 to 85%,
Atmospheric pressure:700 to 1,060hPa

Accessories Included

• Operator’s manual 1, • Warranty Card 1, • BART Cord table 1,
• Clear storage case for operator’s manual 1, • Attaching screw for clear storage case 1,
• Spanne 1, • Leveler 1, • Rotor locking knob 1, • Drain plug 1


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