Centrifuge Machine, Laboratory Centrifuge 4000 RPM, 6 x 20ml | 110V Lab Benchtop Centrifuges with Speed Control and Timer

Bought this for my 12 year old science loving son. He's used it a lot and it has held up well. Not many kids ask for a centrifuge for Christmas but I'm glad he did.

Purchased this centrifuge for my boutique mobile lab services. On the third use it stopped working. Contacted Amazon customer support was referred to the seller. Communications with the seller doesn’t allow for video upload due to size. My only recourse is to leave this one star review.

Easy and convenient.For lab work.

Actual Max RPM is 2820 (890g RCF) making half the power as stated. Timer doesn’t turn the machine off so not sure what the point is. Measured max RPM (see pic) 47Hz = 2820 RPM Measured with vibrochecker Diameter is 20cm (radius 10cm) Measurements at various knob settings 1/2: 960 RPM 103g RCF 5/8: 1320 RPM 195g RCF 3/4: 1920 RPM 412g RCF 7/8: same as max Tubes are 20cc 10cm depth 18mm ID 2.7ml tubes will sit low so added something in bottom Timer doesn’t function to turn off the device nor does it have a bell or something. Noise is as expected, not overly loud. Value I would still say is worthwhile given excellent price, will work for most needs as long as your RCF requirements are low. Why lie about the power. If it wasn’t for that I’d be happy to rate 5 stars for now. Will see how long it lasts.

I recently picked up the NORJIN Electric Lab Laboratory Centrifuge Machine and after several runs, I’m genuinely impressed with how well it performs for its price point. It accommodates six 20 mL tubes at once, which is great for batching multiple samples. The built-in timer and speed-control knobs give you decent control over run conditions — I’ve used it for 10-minute spins and 20-minute spins with success. It’s compact enough for a benchtop setup and surprisingly quiet in operation. Balanced load matters (make sure tubes are paired and balanced) — the instructions emphasise symmetric loading. Where it could improve: The very highest speed/RCF is modest compared to high-performance centrifuges. If you need ultra-high speeds (10,000 rpm+ or >5,000×g), this isn’t the ideal pick. The rotor is fixed for 20 mL tubes across six positions — if you foresee dramatically varied tube sizes (e.g., 50 mL or micro-tubes) you may need additional adapters or a different model. Ensure you buy for the correct voltage (e.g., AC 110 V) and confirm shipping/instructions/support are appropriate for your region. My verdict: For small-scale lab work — biology, chemistry, educational labs, or hobbyist use — this centrifuge does exactly what I needed: reliable separation, durable, easy to use, good value. As someone who runs a boutique store but also values precision in small equipment setups, this gave me solid performance without breaking the bank. If your needs are basic to moderate, go for it. If you’re in an intensive research/clinical environment requiring high throughput, consider stepping up to a more advanced model.

Quiet motor will purchase another one

I’m a mobile phlebotomist and it works just fine for me. I centrifuge in my truck while driving from one location to the next and I have no issues. Great buy in my opinion.

Only used 6 times and stopped working. Can't get ahold of seller to try trouble shooting.