Desktop Electric Lab Centrifuge 4000 RPM - Low Speed Benchtop

In this review of the Desktop Electric Lab Laboratory Centrifuge, the bottom line is simple: it is a compact, low-speed benchtop unit suited to small labs, classrooms, and hobbyist medical practice where routine sample separation of small volumes is needed. The reviewer found the biggest reason to buy is the combination of a 6 x 20 ml capacity with a 0-60 minute timer and a 0-4000 rpm speed range, which covers many basic separation tasks while remaining quiet and compact enough for limited bench space.

Key Features

• 6 x 20 ml capacity: Holds six tubes up to 20 ml each so multiple samples can be processed in one run, improving workflow efficiency.
• Maximum speed 4000 rpm: Provides sufficient centrifugal force for low-speed separations with a maximum relative centrifugal force of about 1790 g.
• Timer control: The 0 to 60 minute timer (or continuous operation) lets users set precise run times for reproducible results.
• Speed dial: Simple analogue speed control enables gradual adjustment up to 4000 rpm for different sample types without complicated programming.
• Compact and quiet design: Small bench-top footprint and generally low noise make it suitable for offices, classrooms, and smaller labs.

Who It's For

This centrifuge is best for educational labs, small clinical or research groups, and anyone needing a simple, low-speed benchtop unit for routine separations of blood, cells, or particles. It is especially appropriate where space is limited and runs are typically small-volume (20 ml or less per tube).

Those who need heavy-duty, high-speed ultracentrifugation, very large capacities, or industrial continuous use should look elsewhere, as this model is designed for intermittent, lower-speed work rather than high-throughput or long-duration heavy-duty cycles.

Pros & Cons

Pros

• Compact 6-tube rotor saves bench space while processing multiple 20 ml samples at once.
• Simple speed and timer controls make it easy to operate without advanced training.
• Quiet and suitable for classrooms or small labs where low noise is preferred.
• Good value for basic separation tasks given the included tubes and straightforward features.

Cons

• Mixed reports on long-term durability and occasional failures mean reliability can vary between units.
• Not suitable for high-speed or large-volume centrifugation beyond its 4000 rpm limit.

Specifications

Brand	CALU LUKY
Capacity	6 x 20 ml tubes
Maximum speed	4000 r/min
Maximum relative centrifugal force	1790 g
Timer range	0 to 60 minutes or continuous
Power	AC 110V 60 Hz

Our Verdict

The Desktop Electric Lab Centrifuge is a practical, budget-friendly choice for small labs and educational settings that need reliable low-speed separations of up to six 20 ml tubes. It offers sensible speed and timer controls, a compact footprint, and good value, though buyers should be aware of mixed feedback on long-term durability and avoid using it for high-speed or industrial workloads.

Frequently Asked Questions

Can this centrifuge run continuously?
Yes, it can be set to run without a timer limit as well as for durations up to 60 minutes.

What power supply does it require?
The unit is designed for AC 110V 60 Hz power input.

How many tubes can it hold and what is the tube size?
It holds six tubes with a maximum volume of 20 ml each.