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Graduated Glass Centrifuge Tube
Original price was: ₹34.00.₹10.00Current price is: ₹10.00.
Quick answer: A graduated centrifuge tube is used to hold a sample during centrifugation, with a conical base and graduation marks that allow the volume of the sedimented material to be read directly after spinning.
When a sample is spun at speed in a centrifuge, denser components such as solids, precipitates or cells are forced outward and settle at the bottom of the tube, while the lighter liquid remains above as the supernatant. The tapered, conical base of the tube concentrates this sediment into a compact pellet at the tip, and the graduation marks along the tube allow its volume to be read off directly, without needing to transfer the sample elsewhere.
This makes the graduated centrifuge tube useful wherever a sample needs to be separated by centrifugation and the amount of solid material quantified or the clear liquid above carefully removed for further use.
Technical Specifications
| Parameter | Detail |
|---|---|
| Body material | Laboratory glass |
| Design | Conical, tapered base with graduation marks |
| Function | Separates and measures sedimented material after centrifugation |
| Rotor compatibility | Confirm tube dimensions and rated speed match your centrifuge at enquiry |
Applications
- Separating precipitates or solids from a liquid sample
- Estimating sediment or cell pellet volume after centrifugation
- General sample preparation in biology and chemistry laboratories
- Teaching demonstrations of centrifugal separation technique
Care & Handling
- Always load tubes in balanced, matched pairs opposite each other in the rotor
- Confirm the tube’s rated speed matches or exceeds your centrifuge’s operating speed
- Inspect the tube for cracks or chips before every use, especially the conical tip
- Clean and dry thoroughly between different samples to avoid cross-contamination
Why Choose LabEquip
LabEquip supplies centrifugation and sample-preparation glassware alongside our wider lab glassware range and chemistry lab equipment to schools, colleges and research laboratories across India. For bulk or institutional requirements, contact us and our team will help confirm the right tube for your centrifuge.
Frequently Asked Questions
What is a graduated centrifuge tube used for?
It is used to hold a sample during centrifugation, with a conical base and graduation marks that allow the volume of the sedimented material to be read directly after spinning.
Why does the tube have a conical bottom?
The conical, tapered bottom concentrates the denser sediment into a small pellet at the tip, making it easier to see, measure and separate from the supernatant liquid above.
Can this tube be used in any centrifuge?
The tube should be matched to a centrifuge rotor of a compatible size and speed rating; confirm the tube’s dimensions and rated speed against your centrifuge before use.
What is the tube commonly used to separate?
It is commonly used to separate solids from liquids, such as precipitates from a solution or cells from a suspension, by spinning at speed.
How should the tube be balanced during centrifugation?
Tubes should be loaded in matched, balanced pairs of equal volume and mass opposite each other in the rotor to keep the centrifuge running safely and evenly.
Does LabEquip supply graduated centrifuge tubes for bulk or institutional orders?
Yes. LabEquip supplies graduated glass centrifuge tubes to schools, colleges and laboratories across India, including bulk and institutional orders. Contact us for a quotation.
Last Updated: September 2026
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