Choosing a centrifuge often comes down to a tradeoff between a compact microcentrifuge and a more specialized clinical instrument. In the centrifuges mixers and shakers category, that tradeoff is clear with the Plasma PRP Microcentrifuge and the Medline 642M. One is a new microcentrifuge with an LCD display and two rotors; the other is a New - Open box clinical centrifuge with a Medline model number.
Quick verdict
Pick the Plasma PRP Microcentrifuge for small-tube work. Pick the Medline 642M when you want a straightforward centrifuge and do not need variable speed settings.
Plasma PRP Microcentrifuge vs Medline 642M at a glance
| Plasma PRP Microcentrifuge | Medline 642M | |
|---|---|---|
| Price | $52.71 | $109.99 |
| Condition | New | New - Open box |
| Model | LXJ-4 | Medline 642M |
| Speed | 4,000 rpm | Single-speed |
| Intended use | Microcentrifuge for clinical medicine, biology, chemistry, genetic engineering, immunology | Clinical lab centrifuge |
Where each product wins
The Plasma PRP Microcentrifuge wins for tube flexibility. It takes 0.2 to 2.0 mL tubes in an 8-tube angle rotor, has extra PCR tube capacity, and comes in at the lower end of the price spread.
The Medline 642M wins for a more specialized lab orientation. It is made in the United States and sold as New - Open box, so it appeals to a buyer who wants a designated lab instrument rather than a multi-tube microcentrifuge.
Product notes
Plasma PRP Microcentrifuge High-speed LCD Display Centrifuge Lab & 2 Rotor New
This microcentrifuge uses a 4,000 rpm angle rotor and accepts 0.2, 0.5, 1.5, or 2.0 mL tubes in an 8-tube layout, with extra capacity for PCR tubes in a 0.2 mL x 8 x 2 format. It runs on 110V and is designed as a compact, light, low-noise unit for bench work. That makes it a sensible fit for tube-based sample preparation and general biology, chemistry, or immunology tasks. One limitation is that it has no timing control, so you will manage spin duration by hand. Its price is the lower of the two, which helps if you need a practical workstation centrifuge without spending as much as the Medline.
Medline 642M Single-Speed Clinical Lab Centrifuge Tested Working
The Medline 642M takes a straightforward approach with one operating speed. It is marked New - Open box and comes from the United States. It carries the phrase "Tested Working," a useful sign that the unit is ready for medical or lab use. Because it focuses on one operating speed, it keeps the routine simple and predictable for labs that process samples in the same way each day. The tradeoff is the higher price relative to the microcentrifuge; you are paying for a different type of instrument, one that is less about tube variety and more about consistent, repeatable spins.
Final choice by use case
Choose the Plasma PRP Microcentrifuge when your use case is small-tube work. Choose the Medline 642M when your use case is a consistent, no-frills workflow.

