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VWR Standard Multistir 9 Multi-Position Magnetic Stirrer, Cat. #: 12621-042

Our Price: $595.00

Condition: Fully Recertified and Tested to Perform at Manufacturer Specifications
Warranty: 180-Day Full Parts and Labor (Click for Info)
Typically Ships Within: 1 to 3 Business Days

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Product Code: VWR-MS9042

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Description

Recertification Protocol

Technical Specification Sheet

VWR Standard Multistir 9 Multi-Position Magnetic Stirrer, Cat. #: 12621-042

Maximum Stirring Volume
9 x 250ml

Stirrer Speed
60 to 1,400 RPM

Platform Size
12.5 x 11 in (31.8 x 27.9 cm)

Features

Mix up to 9 vessels simultaneously for high-throughput workflows
Microprocessor-controlled motor ensures consistent stirring performance
Ramping function gradually reaches set speed to prevent splashing
Excellent speed stability: ± 5 RPM (60 to 250 RPM), ± 2% (250 to 1,400 RPM)
Durable glass-filled nylon top plate with white reflective surface
Position indicators simplify vessel placement and monitoring
Low-profile design fits easily into fume hoods and tight spaces
Spill-resistant housing channels fluids away from internal components

The VWR Standard Multistir 9 Multi-Position Magnetic Stirrer, Cat. #: 12621-042 is a high-performance stirring solution designed for laboratories requiring synchronized, uniform mixing across multiple vessels. This unit can stir up to nine 250 ml containers simultaneously with speeds ranging from 60 to 1,400 RPM, controlled by an analog knob with clear dial markings. A built-in ramping feature gradually increases speed to minimize splashing, improve magnetic coupling, and deliver reliable low speed stirring. The microprocessor-controlled motor maintains speed stability within ± 5 RPM at low ranges and ± 2% at higher speeds. The 12.5 x 11 in. glass-filled nylon top plate is chemically resistant, features position indicators, and provides a reflective white surface for enhanced visibility. With its low-profile, spill-resistant design and durable cast metal base, the Multistir 9 fits easily inside fume hoods and offers best-in-class reliability.

All of our equipment will be fully tested to perform at factory specifications before being shipped.

INCLUDED:
The VWR Standard Multistir 9 Multi-Position Magnetic Stirrer, Cat. #: 12621-042 includes:

> Operator's Manual
> Power Cord
> Full 180 Day Parts and Labor Warranty

VWR Standard Multistir 9 Multi-Position Magnetic Stirrer, Cat. #: 12621-042 Specifications

Stirrer Speed	60 to 1,400 RPM
Stirrer Speed Stability	± 5 RPM (60 to 250 RPM) ± 2% (250 to 1,400 RPM)
Maximum Stirring Volume	9 x 250ml
Platform Size	12.5 x 11 in. (31.8 x 27.9 cm)
Plate Material	Glass filled nylon
Control	Analog
Weight	14.75 lb. (6.7 kg)
Dimensions (L x W x H)	17 x 11 x 4 in. (43.2 x 27.9 x 10.2 cm)
Electrical Requirements	120V, 50/60Hz, 75W

Downloads

Technical Specification Download

Operator's Manual Download

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Hot Plate Stirrers Inspection and Recertification Checklist

Inspect Display and Replace Any Dim/Dead Pixels (If Applicable).
Inspect Ceramic Top for Any Cracks and Replace If Necessary.
Inspect Functionality of All Buttons/Knobs.
Use Magnetic Stir Bar Alongside NIST Tachometer to Confirm RPM of Internal Motor (If Applicable).
Inspect Internal Wiring Inside Case.
Clean Internal Parts and Vent Any Internal Debris.
Check Feet to Confirm Plate Sits Properly Balanced.
Replace All Parts That Were Removed on Internal Inspections.
Confirm Temperature with NIST Traceable Temperature Probe (If Applicable).
Ensure Cosmetics Are Acceptable.

Technician Inspection and Recertification Checklist: Hot Plate Stirrers

The Following Checklist Is to Be Performed on All Incoming and Outgoing Equipment

Task	Completed?	Remarks?
Inspect Display and Replace Any Dim/Dead Pixels (If Applicable)	Completed
Inspect Ceramic Top for Any Cracks and Replace If Necessary	Completed
Use Magnetic Stir Bar Alongside NIST Tachometer to Confirm RPM of Internal Motor (If Applicable)	Completed
Inspect Internal Wiring Inside Case	Completed
Clean Internal Parts and Vent Any Internal Debris	Completed
Check Feet to Confirm Plate Sits Properly Balanced	Completed
Replace All Parts That Were Removed on Internal Inspections	Completed
Confirm Temperature with NIST Traceable Temperature Probe (If Applicable)	Completed