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VWR Mini Shaker, Cat # 12520-956
The VWR Mini Orbital Shaker, Cat # 12520-956 is in like new condition. Variable speed range from 100 RPM to 1,200 RPM on a 3mm orbit. Timer up to 9,999 minutes. Loads up to 8lbs. All of our equipment will be fully tested to perform at factory specifications before being shipped.
The VWR Mini Shaker, Cat # 12520-956 includes:
- > NIST Calibration and Preventative Maintenance Report
- > Power Cord
- > Operator's Guide
- > Full 180 Day Parts and Labor Warranty
VWR Mini Shaker Specifications
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Speed Range
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100 to 1,200 RPM
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Speed Accuracy
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2%
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Orbit
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3mm (0.125 in)
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Timer
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1 sec to 9,999 min
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Maximum Capacity
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8lbs up to 1,000 RPM
5lbs over 1,000 RPM
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Tray Dimensions (L x W)
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11.75 x 8.75 in (29.9 x 22.2 cm)
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Overall Dimensions (L x W x H)
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17 x 11 x 4 in (43.2 x 27.9 x 10.2 cm)
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VWR Mini Shaker Manual
 Click Here to View the Technical Specs for the VWR Mini Shaker
VWR Micro Plate Digital Orbital Shaker - Marshall Scientific
- Validate that the power supply and PCB deliver stable, correct voltage outputs across all necessary connections, ensuring reliable operation
- Thoroughly inspect the display for any dim, flickering, or dead pixels; replace affected elements to maintain full readability and operational clarity
- Test the full range of button functionality, confirming responsive, accurate input recognition across all settings
- Conduct a detailed inspection of bearings and bearing housing, identifying any worn or damaged bearings, and replace as needed to prevent operational disruption
- Examine the drive belt for signs of cracking, fraying, or material breakdown; replace as required to ensure sustained performance
- Measure and adjust motor drive belt tension to optimal specifications, securing reliable and efficient power transmission
- Verify accuracy of the onboard timer, confirming proper functionality and replacing if it deviates from expected performance
- Calibrate shaker rotation speed with a NIST-traceable tachometer, validating precision within specified operational limits
- Run the shaker continuously for an 8-12 hour testing period, closely observing the shaking platform for smooth, consistent motion, while monitoring for any error indicators such as knocking, skipping, or unusual vibrations
- Perform a comprehensive cosmetic inspection to confirm the device’s exterior meets aesthetic and quality standards, free from visible damage or wear
Technician Inspection and Recertification Checklist: Shakers
The Following Checklist Is to Be Performed on All Incoming and Outgoing Pieces of Equipment
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Task
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Completed?
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Remarks?
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Validate stable, correct voltage outputs from power supply and PCB
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Completed
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Inspect display for dim, flickering, or dead pixels; replace as needed
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Completed
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Test button functionality for responsiveness and accuracy across all settings
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Completed
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Inspect bearings and housing for wear; replace as needed to prevent disruption
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Completed
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Examine drive belt for cracking, fraying, or material breakdown; replace as required
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Completed
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Measure and adjust motor drive belt tension to optimal specifications
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Completed
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Verify onboard timer accuracy; replace if it deviates from expected performance
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Completed
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Calibrate shaker rotation speed using a NIST-traceable tachometer
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Completed
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Run 8-12 hour continuous test; observe platform for smooth, consistent motion
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Completed
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Perform comprehensive cosmetic inspection for quality standards compliance
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Completed
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To View More of Our Recertification Protocol Click Here
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