The doctor centrifuge is a compact laboratory centrifuge for short spins of a small number of samples, such as separating serum or settling sediment in clinics and small laboratories. It reaches up to 3,000 RPM with a five-stage speed regulator, and its resiliently mounted motor limits vibration while running. A removable angle rotor holds eight 15 ml tubes.

Key features

• Compact centrifuge for short spins of a small number of samples
• Reaches a maximum speed of 3,000 RPM
• Five-stage speed regulator
• Resiliently mounted motor prevents vibration during running
• One removable angle rotor supplied
• Takes 8 × 15 ml tubes at a time

Technical specifications

Frequently asked questions

What is a doctor centrifuge used for?

It is used for short, low-speed spins of small sample batches, for example separating serum from clotted blood or settling urine sediment, in clinics, hospitals and teaching or small laboratories.

Which tubes can I use?

The rotor takes 8 tubes of 15 ml at a time. Use centrifuge tubes rated for spinning, and check the tubes are not cracked before every run.

How do I balance the tubes?

Place tubes in opposite positions in the rotor and make sure opposite tubes have the same weight, using a tube filled with water as a balance if needed. An unbalanced rotor causes vibration and wears the motor.

Can I run fewer than 8 tubes?

Yes, as long as the load is balanced. Use an even number of tubes placed opposite each other, never a single tube.

What do the five speed settings do?

The regulator has five stages, so you can pick a gentler or faster spin. Start with the lowest setting that gives a good separation. The exact RPM per stage is given in the instruction manual.

How do I convert RPM to RCF (g-force)?

RCF = 1.118 × 10⁻⁵ × radius (in cm) × RPM². Measure the radius from the rotor centre to the tube bottom. Protocols that give g-force can then be converted to the RPM you need.

What safety precautions should I follow?

Close the lid before starting, never open it while the rotor is spinning and wait until the rotor has stopped completely. Keep the centrifuge on a firm, level bench and do not leave it running unattended.

How do I clean and maintain it?

Switch off and unplug the centrifuge, remove the rotor and wipe the chamber and rotor with a mild disinfectant. Clean spills immediately and inspect the rotor for cracks or corrosion.

The centrifuge vibrates or is noisy. What should I check?

Check that the tubes are balanced, the rotor is seated properly and the machine is on a level, stable surface. Stop using it if the vibration continues and contact us.

Can I get a GST invoice and a bulk or institutional quotation?

Yes. Labmart supplies colleges, hospitals, pharma companies and government laboratories across India and issues a GST invoice with every order. For bulk or institutional quantities, send us the size and quantity you need and we will share a quotation.