OS-2000 Open-air Shakers (Dual-Action Models)

OS-2000 Open-air Shakers (Dual-Action Models)


Dual-action benchtop platform shakers accommodate flask up to 6L. The most versatile shakers at a reasonable price offer an ideal solution for your mixing needs. 

For more information or to place an offline order call 1-800-745-2710


We Accept Trade-ins!

Don’t forget to tell us about any unused

instruments taking up space in your lab.


Safety Features

  • Worry-free operation.
    - Automatic shaking speed adjustment in case of excessive workload such as unbalanced load placement, unusual vibrations caused from unstable floor or external shock.
  • Automatic run is available with non-volatile set point memory after power interruption, indicated in control display.
  • Audible/Visible alarm activated by shaking speed deviation.
  • Shaker protection system against over-current, stalled platform check. (Stalled platform check is only for OS-4000)

Operational Features 

  • Microprocessor PID control and shaking speed calibration.
  • Dual-action shaking motion: orbital or reciprocating.
  • Speed range: 10 to 500 rpm.
  • Timer range: 1 min. to 999 hr 59 min.
  • Adjustable shaking amplitude.
    - 12.7mm or 19.1mm for OS-2000
    - 19.1mm or 25.4mm for OS-3000
  • User friendly control panel.
    - Lab Companion s unique VFD-bright, clear, easy to read.
    - Durable membrane touch switch and control knob.
  • Speed is basically set and displayed in increments of 1 rpm. Also speed increment interval can be set among 1, 5, 10 rpm according to users preference.
  • Built-in RS-232 port and USB port for external control and data collection.

Constructional Features

  • Wide speed range even with heavy workload.
    - Equipped with a maintenance-free BLDC motor to generate smooth, quiet, uniform, and yet powerful shaking motion.
  • Repetitive task can be easily performed as the platform stops where it starts.
    - Stopping the shaking platform always at the same position is highly beneficial for automated dosing or sampling process.
  • Pleasant test environment by the smooth acceleration and deceleration control.
    - Smooth start and smooth stop function prevent chemical spills from flasks or test tubes.
  • Low-profile design minimizes vibration or sliding caused by the high speed shaking motion.
  • Various accessories.
Model OS-2000 OS-3000
Motion type Orbital or Reciprocating motion selectable
Amplitude Size
(mm / inch, dia.)
12.7, 19.1 / 0.5, 0.8
(Standard 19.1 / 0.75)
19.1, 25.4 / 0.8, 1
(Standard 19.1 / 0.75)
Speed Range (RPM) 10 to 500
Accuracy 1% of set speed (>100rpm) / 1 (<100rpm)
Timer 1 min. to 999 hr 59 min.
Max Load (kg / Ibs)
10 / 22.0 at 500 rpm in Orbital shaking motion
8.5 / 18.7 at 500 in Reciprocating shaking motion.
Dimensions Platform (W D) (mm / inch) 320 260 / 12.6 10.2 350 350 / 13.8 13.8
Exterior (W D H)
(mm / Inch) 1)
354x388x146/ 13.9x15.3x5.7 409x508x141/ 16.1x20x5.6
Net weight (kg / Ibs) 22 / 48.5 28 / 61.7
Electrical Requirements (230V, 50/60Hz) 0.3 A 0.3 A
Cat. No. AAH3D1115K AAH3D1215K
Electrical Requirements (120V, 50/60Hz) 0.6 A 0.6 A
Cat. No. AAH3D1165U AAH3D1265U
GMI Certified Service means:
  • Healthy operation of your instrument
  • Helping to ensure the quality of your results
  • Lowering cost of ownership through multilple service agreement options
  • Prolonging instrument serviceable life
  • Safe Operation of your equipment
  • Minimizing downtime increases productivity and minimizes revenue loss
  • Instrument Evaluation Services
  • Contract Refurbishing
  • Relocation Services
  • Equipment Finder Service
  • Training Courses
  • Depot Repair
  • Instrument Decommisioning & Disposal Services
Service Agreements

Preventative Maintenance Visit
('tune up', including cleaning, lubrication, and adjustments)
1 Service Visit
Service Visit 1PM
1 Service Visit
1 2
Parts and Labor    

Discounted Parts
Discounted Labor (As needed)

Lab Equipment Replacement Parts & Accessories

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  • Warranties from 90 days to a year as well as multi-year service agreements are available.

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Unlike small-time businesses and brokers, GMI goes beyond offering money-back promises. We offer real product warranties.
Apart from our meticulous inspection processes, GMI’s available warranties and multi-year service agreements guarantee customer satisfaction - no need to go through frustrating and time-consuming product returns!
Additionally, all items are thoroughly cleaned and professionally packaged/crated with care to insure they arrive in your lab ready for use.