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Plastic Test Tube Rack
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Plastic · Accessories

Plastic Test Tube Rack

High-Purity PP · 18/20/25 mm · Stackable · Autoclavable

Manufactured from high-purity polypropylene (PP) via precision injection molding, available in 18mm, 20mm, and 25mm hole diameters to accommodate various tube types including test tubes, centrifuge tubes, and culture tubes. Features a sturdy construction, stackable design, and drainage holes—autoclavable at 121°C for routine laboratory use.

18 – 25 mmSpecification
PPMaterial
18 – 25 mmHole Diameter
10 – 24 tubesCompatible Tubes

Specifications are subject to confirmation with your enquiry.

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PP 18 / 20 / 25 mm Stackable 121°C Autoclavable

📐 Features:
High-purity PP · 18/20/25mm diameters · Stackable · Autoclavable at 121°C · Sturdy · Multi-tube compatible

  • Material — High-purity Polypropylene (PP)
  • Hole Sizes — 18mm / 20mm / 25mm
  • Compatibility — Test tubes, centrifuge tubes, culture tubes
  • Sterilization — Autoclavable at 121°C
  • Design — Stackable with drainage holes
We will follow up on your inquiry as soon as possible. Custom sizes supported Samples available
Specifications

Specifications

Standard specifications for plastic test tube racks. Specifications marked Customizable are available upon request.

Request custom specs
SpecificationMaterialHole DiameterCompatible TubesDimensions (approx.)Autoclavable
18mmPP18mm10-15mm tubesVarious121°C
20mmPP20mm15-17mm tubes/centrifugeVarious121°C
25mmPP25mm20-24mm culture/large tubesVarious121°C
Dimensions are typical values. All specifications feature drainage holes.
📌 Customization Options:
• Custom hole diameters available
• Custom well counts
• Color options (transparent / blue / custom colors)

Product Description

I. Overview

The plastic test tube rack is an essential accessory for organizing test tubes, centrifuge tubes, and culture tubes in the laboratory. Manufactured from high-purity polypropylene (PP) via precision injection molding, the rack features a sturdy, smooth, burr-free surface for safe handling.

Available in 18mm, 20mm, and 25mm hole diameters to accommodate different tube sizes. The stackable design maximizes bench space, and drainage holes at the bottom allow efficient liquid drainage after autoclaving. Autoclavable at 121°C—a practical tool for routine laboratory operations.

🔬 Product Advantages:
High-Purity PP — Chemical resistance and autoclavable
Multiple Hole Sizes — 18/20/25mm for various tube types
Stackable Design — Space-efficient storage
Drainage Holes — Quick drying after sterilization
Sturdy Construction — Secure tube placement

II. Key Performance Parameters

  • Material: High-purity Polypropylene (PP)
  • Manufacturing: Precision injection molding
  • Hole Sizes: 18mm / 20mm / 25mm
  • Compatibility: Test tubes, centrifuge tubes, culture tubes
  • Sterilization: Autoclavable at 121°C (reusable)
  • Design: Stackable with drainage holes

III. Material & Manufacturing

The product is manufactured from medical-grade polypropylene (PP) resin in a cleanroom environment. The rack features a robust structure with precisely dimensioned holes for smooth tube insertion and removal. The smooth surface facilitates cleaning and disinfection.

Applications

Typical Applications

Tube Storage

Temporary tube placement during experiments

Tube Drying

Upside-down drying of cleaned tubes

Sample Organization

Neat storage of centrifuge and culture tubes

Teaching Labs

Tube distribution and management for students

Applicable Fields

  • Chemistry Labs Routine test tube operations
  • Biology Labs Centrifuge and culture tube management
  • Teaching Labs Student experiment organization
  • Clinical Labs Temporary sample tube storage

Selection Guide

I. Select by Tube Diameter

Tube TypeTube DiameterRecommended Hole Size
Standard test tubes10-15mm18mm
Standard centrifuge tubes15-17mm20mm
Culture tubes / large tubes20-24mm25mm

💡 Selection Tips: 18mm — For standard glass test tubes (12-15mm)
20mm — For 15ml/50ml centrifuge tubes
25mm — For large culture tubes and sample tubes
For mixed tube types, choose 20mm as a general-purpose option.

Operation & Maintenance

Operating Guide

03

I. Preparation

  • Inspect the rack for any visible damage or deformation
  • Autoclave at 121°C if sterile conditions are required
04

II. Operating Steps

  1. Insert tubes into the corresponding holes
  2. Ensure tubes are placed vertically and securely
  3. Multiple racks can be stacked for space efficiency
  4. After autoclaving, invert or tilt to allow drying

💡 Tips from Experienced Technicians: "Choose the right size" — Tubes should have slight resistance when inserted—not too tight, not too loose.
"Dry after autoclaving" — Invert or tilt the rack to allow drainage holes to work effectively.
"Stack with care" — Ensure stable stacking to prevent tipping.

Care & Notes

Show care & notes

⚠️ Safety Notes

  • Wear lab coats and gloves during operation
  • Replace immediately if deformation or cracking is observed
Do not
  • Avoid contact with strong organic solvents

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Need Plastic Test Tube Racks?

Contact our team for pricing and inventory. Custom hole sizes and bulk orders available.

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Plastic Test Tube RackSpecification 18 – 25 mm Get a Quote