Lab Centrifuge Tubes – 5 to 120 mL, Multiple Bottom & Cap Types

High-quality centrifuge tubes made from medical-grade polypropylene (PP), available in capacities from 5 mL to 120 mL. Suitable for routine sample processing, pelleting, and storage, these tubes feature precise molding, reliable cap sealing, and multiple bottom formats to support diverse laboratory workflows.

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Product Details

Product Info

Centrifuge Tubes for Versatile Laboratory Workflows

Kelabscience centrifuge tubes are engineered to support a wide range of laboratory procedures, including sample separation, pellet collection, preparation steps, and temporary storage. Manufactured from high-purity polypropylene (PP), each tube offers consistent clarity, dependable mechanical strength, and chemical compatibility with common laboratory buffers and reagents.

To meet diverse experimental needs, the product line includes capacities ranging from 5 mL and 7 mL low-volume formats to 50 mL, 100 mL, and 120 mL high-capacity tubes. Multiple bottom geometries and cap configurations allow researchers to select the most suitable tube type for each centrifugation or sample-handling workflow.
For smaller-volume workflows, see our Microcentrifuge Tubes.

Key Features

  • Wide capacity range: 5 mL, 7 mL, 10 mL, 15 mL, 20 mL, 25 mL, 30 mL, 50 mL, 100 mL, 120 mL

  • Bottom formats: Conical and round-bottom designs to support different pelleting behaviors

  • Cap types: Secure screw caps, including standard and color-coded options

  • Material: Virgin polypropylene (PP) providing clarity and broad chemical compatibility

  • Graduations: Optional marked or unmarked versions

  • Consistent molding: Uniform wall thickness for stable centrifugation performance

  • Packaging: Capacity-based bulk packaging—100 pcs/bag for ≤10 mL, 50 pcs/bag for 15–30 mL, 25 pcs/bag for 50–120 mL

Applications

Kelabscience centrifuge tubes are suitable for:

  • Routine sample pelleting and separation

  • Preparation steps in molecular biology and biochemistry

  • Cell culture washing and media exchanges

  • Environmental and food-testing sample handling

  • General laboratory storage and liquid transport

  • Industrial and quality-control testing workflows

During sample preparation, accurate liquid transfer can be paired with our Filter Pipette Tips to minimize aerosol contamination and maintain sample integrity.
For long-term cryogenic storage, see our Cryo Tubes.
Browse additional related items in our Centrifugation Category.

Structural Design & Material Performance

Each tube is precision-molded to ensure:

  • Uniform wall thickness for dependable mechanical strength

  • Smooth interior surfaces to reduce sample retention

  • Clear visibility for pellet inspection and volume assessment

  • Secure cap-to-tube engagement to minimize leakage during centrifugation and transport

Conical bottoms promote tight pellet formation, while round-bottom tubes offer reduced shear stress for sensitive suspensions.

Cap Options & Handling Convenience

Screw-cap designs provide reliable sealing for routine laboratory workflows, while optional color-coded caps improve visual identification in high-throughput environments. All tube and cap components use materials compatible with standard laboratory handling practices.

Packaging Options

To support bulk laboratory use, tubes are packaged according to capacity:

  • 5–10 mL: 100 pcs/bag

  • 15–30 mL: 50 pcs/bag

  • 50–120 mL: 25 pcs/bag

This structure maintains efficient storage while aligning with common usage volumes across laboratory settings.

Related Accessories

Kelabscience products are compatible with standard laboratory tube racks and storage systems. Additional accessories—such as freezer storage boxes and color screw-caps—are available to support workflow organization and reduce handling errors.

Specification

Centrifuge Tubes – Base SKU Overview

SKU Volume Bottom Type Cap Type Material Graduation Sterility Packaging
K-CT-05C 5 mL Conical Snap-cap PP Optional Optional 100 pcs/bag
K-CT-05R 5 mL Round-bottom Snap-cap PP Optional Optional 100 pcs/bag
K-CT-07R 7 mL Round-bottom Snap-cap PP Optional Optional 100 pcs/bag
K-CT-10C 10 mL Conical Snap-cap / Screw-cap PP Optional Optional 100 pcs/bag
K-CT-10R 10 mL Round-bottom Snap-cap / Screw-cap PP Optional Optional 100 pcs/bag
K-CT-15C 15 mL Conical Screw-cap PP Optional Optional 50 pcs/bag
K-CT-15R 15 mL Round-bottom Screw-cap PP Optional Optional 50 pcs/bag
K-CT-15COLOR 15 mL Conical Color screw-cap PP Optional Optional 50 pcs/bag
K-CT-20R 20 mL Round-bottom Screw-cap PP Optional Optional 50 pcs/bag
K-CT-25R 25 mL Round-bottom Screw-cap PP Optional Optional 50 pcs/bag
K-CT-30R 30 mL Round-bottom Screw-cap (inner-thread optional) PP Optional Optional 50 pcs/bag
K-CT-50C 50 mL Conical Screw-cap PP Optional Optional 25 pcs/bag
K-CT-50R 50 mL Round-bottom Screw-cap PP Optional Optional 25 pcs/bag
K-CT-50COLOR 50 mL Conical Color screw-cap PP Optional Optional 25 pcs/bag
K-CT-100R 100 mL Round-bottom Screw-cap PP Optional Optional 10 pcs/bag
K-CT-120C 120 mL Conical Screw-cap PP Optional Optional 10 pcs/bag

Professional Note

The table above summarizes the standard base SKUs. Additional configurations—such as sterile or non-sterile versions, graduated or non-graduated designs, color screw-caps, and inner-thread options—are available upon request. Please contact us for a full SKU list or customized specifications.

FAQ

What materials are the centrifuge tubes made of?

All tubes are manufactured from high-purity polypropylene (PP), a material widely used in laboratory consumables for its clarity, chemical resistance, and dependable mechanical strength.

What bottom styles are available?

The product range includes conical and round-bottom formats.
Conical tubes support efficient pellet collection, while round-bottom tubes offer gentle handling for suspensions and general sample processing.

What cap types are offered?

Depending on the capacity, tubes are available with snap-caps (5–10 mL) or screw-caps (15–120 mL).
Optional color-coded screw caps can be provided for improved sample identification in high-throughput workflows.

Are the tubes suitable for routine centrifugation?

Yes. Each tube is precision-molded with consistent wall thickness to support routine laboratory centrifugation.
Performance characteristics may vary by capacity and bottom format.

Are graduated and non-graduated versions available?

Yes. Selected capacities offer molded graduations for approximate volume reference, while unmarked versions are available for applications requiring a clear, unobstructed surface.

How are the tubes packaged?

Packaging follows capacity-based bulk formats:

  • 5–10 mL: 100 pcs/bag

  • 15–30 mL: 50 pcs/bag

  • 50–120 mL: 25 pcs/bag

Which accessories are compatible with these tubes?

Kelabscience centrifuge tubes are compatible with standard laboratory tube racks, storage boxes, and screw-cap formats commonly used across research and industrial laboratories.

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