overhead stirrers

How to Shop for an Overhead Lab Stirrer

Researchers involved in R&D lab work and pilot plant production activities along with their purchasing departments may find it necessary to evaluate the need for and importance of options available when selecting overhead stirrers.  This post is designed to help you shop for an overhead lab stirrer. Among the points covered are stirring speed stirring…

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Tips on Selecting a High Performance Overhead Stirrer

Overhead stirrers are highly popular mixing instruments used to blend ingredients in research laboratories and pilot plants.  These units operate by means of motor-powered impellers of different configurations that perform the mixing operation. Being motor powered they can handle samples of higher viscosity than standard or hotplate magnetic stirrers operated with a different technology. In this…

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How Dynamic Viscosity Overhead Stirrers Work

Dynamic viscosity overhead stirrers are designed, in slang terms, to “go with the flow.”  What we mean here is that their power systems can accommodate an increase (or decrease as the case may be) of sample viscosity. In this post we’ll take a look at what goes into these precision lab devices and how they…

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Understanding Overhead Stirrer Terms

What’s “fuzzy logic?” It’s not a description of the “thinking” that seems to go on in Congress, but instead a term applied to a way technical equipment is automatically controlled.  In this post we list many of the terms you’ll need to know when you shop for an overhead lab stirrer.  Why You Should Understand…

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How to Automate Overhead Stirrer Operations

Overhead stirrers are called upon to perform multiple mixing tasks in R&D labs.  When several of these versatile overhead mixers such as offered by CAT Scientific are employed in the lab the researchers’ monitoring tasks are greatly simplified if the equipment is managed by a PC.  This post describes how to automate overhead stirrer operations.…

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How to Maintain Laboratory Overhead Stirrers

Laboratory overhead stirrers are one of two widely used instruments to mix ingredients in product research labs. CAT Scientific lab overhead stirrers, also called overhead mixers, have motor-powered stirring tools immersed in the sample beaker*.  The configuration of the stirring tools – generally termed impellers, paddles and blades – is selected based on the task…

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Specifying a High Viscosity Stirrer

Labs and pilot plants mixing high viscosity materials place special performance requirements on their overhead stirrers.  Viscosity of a fluid, as defined by Wikipedia, “is a measure of its resistance to gradual deformation by shear stress or tensile stress.”  It is due to friction between particles in a fluid that move at different velocities. As…

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Overhead Stirrer Operation Options

Multiple experiments or pilot plant trials utilizing overhead stirrers as part of the mixing procedures are greatly simplified when overhead mixers can be individually controlled via a computer program.  This sure beats lab assistants moving up and down aisles to check on the performance of each piece of equipment. A Windows-based PC program with comprehensive…

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Join Us At The Chemists Corner

The Chemists Corner is a site dedicated to cosmetic chemists and written by cosmetic chemists.  Its mission is primarily helping chemists get employment and being the best chemists they can.  Recently while reading much of what’s on Chemists Corner, I thought we might be able to help out a bit with some of the same…

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How to Shop for an Overhead Stirrer

R100C Overhead Laboratory Stirrer

Stirring is a common activity in research labs as scientists work to refine processing procedures.  Two of the most common techniques are magnetic stirring with or without a hotplate, and overhead stirrers. Benchtop overhead stirrers are not equipped with hotplates. But unlike magnetic stirrers they are able to process larger volume samples and samples with…

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