Need to spin samples or stir them? That's the first decision when you're looking at lab mixers and centrifuges. The Electric Overhead Stirrer Max.40L Digital Lab Mixer Time & Speed Adjustable 120W and the Medline 642M Single-Speed Clinical Lab Centrifuge Tested Working are priced just about one percent apart, but they are designed for opposite jobs. The stirrer keeps large volumes of liquid moving; the centrifuge separates fluids and particles. This head-to-head helps you choose.
Quick verdict
Pick the Electric Overhead Stirrer when your work is about mixing large volumes with adjustable speed and time. Pick the Medline 642M Centrifuge when you need consistent, repeatable spinning for clinical lab separation. At a price spread of only 1%, the decision comes down to the task, not the tag.
Comparison table
| Product | Price | Price bar | Best for |
|---|---|---|---|
| Electric Overhead Stirrer Max.40L Digital Lab Mixer Time & Speed Adjustable 120W | USD 109.02 | Large-volume liquid mixing | |
| Medline 642M Single-Speed Clinical Lab Centrifuge Tested Working | USD 109.99 | Clinical fluid and particle separation |
Where each product wins
The Electric Overhead Stirrer wins for mixing. It offers a 40L/10.57gal capacity, a 100-2000rpm speed range, and a 120W motor that can handle demanding fluids. The digital tube screen and 0.8-10mm drill clamping range make setup adjustable.
The Medline 642M wins for separation. It is built as a single-speed clinical centrifuge, so the spin is consistent and repeatable. Its open-box condition is paired with the "Tested Working" claim in the product name, which points to a functional unit.
Product notes
Electric Overhead Stirrer Max.40L Digital Lab Mixer Time & Speed Adjustable 120W
The headline here is capacity. This stirrer is rated for up to 40L and runs from 100 to 2000rpm, making it a strong fit for large-scale mixing. The digital tube screen keeps time and speed adjustments readable, while the 0.8-10mm drill clamping range works with common stirring shafts. With a listed maximum torque of 40N·cm and maximum viscosity of 30000mPa·s, it is built for heavier liquids. The main limitation is scope: it is not designed for centrifugal separation. If your workflow calls for spinning down samples, this unit cannot fill that role. As a new mixer, it is ready to mix from the moment it is set up, but your needs must be mixing-heavy for it to make sense.
Medline 642M Single-Speed Clinical Lab Centrifuge Tested Working
The Medline 642M is a purpose-built clinical centrifuge. Its single-speed operation delivers a consistent spin for standard separation procedures, and the "Tested Working" wording in the product name suggests you are getting a functional unit. It is listed in new open-box condition, so the centrifuge itself should be ready to use even if the packaging shows some signs of handling. The trade-off is flexibility: there is no speed adjustment, so you cannot dial in different rpms for different tubes or protocols. It is the right choice when your lab's main job is repeatable centrifugal separation, not variable-speed mixing.
Final choice by use case
Choose the Electric Overhead Stirrer for a lab that mixes large volumes or handles high-viscosity fluids. Choose the Medline 642M Centrifuge for a clinical lab that needs dependable sample separation. Because the two tools serve different functions, there is no single winner; the correct choice depends on whether you need to mix or spin. With prices that close, let your workflow decide.
