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Lab test tube clamps are essential for safely handling and manipulating test tubes during experiments. The right clamp ensures a secure grip, preventing accidents and protecting your samples. Selecting a clamp suited to your specific laboratory needs will enhance efficiency and safety.
DIE CAST ALLOY || Die cast alloy construction is strong and corrosion-resistant
WIDE JAWS || 3-finger jaws on clamp open to 3.5” (90mm) wide for holding a wide range of glassware sizes and volumes
PVC COATED PRONGS || PVC-coated prongs provide a strong, slip-free hold that won’t scratch objects. PVC coating can withstand heat up to 100°C for short periods of time but it is recommended you remove the PVC coating for extreme temperature uses
SWIVEL BOSSHEAD || Swivel bosshead for rotating clamped objects 360°. Bosshead attaches to rods up to 15mm in diameter. Clamp extends out approximately 5" from rod (not adjustable)
Steel wire test tube clamp made of high quality stainless steel, exquisite workmanship, steady, not easy to rust.
Tube heating glass tube tongs are comfortable to hold with your fingers and can protect your hands during experiments.
The lab test tube holder sprung tool that supports tool spring operation in this laboratory tube holder ensures safe holding at the correct pressure.
Chrome plated iron test tube holder is light weight, space-saving, self-locking clip, easy to use, suitable for students in the classroom or laboratory.
[Spring-Loaded Secure Hold] The spring mechanism maintains constant pressure on test tubes, preventing slippage during heating or mixing in and biology classrooms where sample .
[Steel Construction Durability] Made from sturdy steel that resists bending and , these clamps survive repeated cycles and chemical exposure in research facilities, outlasting plastic alternatives in daily use.
[Universal Standard Tube Fit] The 14.5cm length and jaw opening accommodate standard 10-25mm diameter test tubes, fitting most common lab in school laboratories and professional research settings.
[HeatHandling] The long 14.5cm handle provides safe distance from Bunsen burners and hot plates, protecting hands during experiments in organic chemistry and microbiology workstations.
Last update on 2026-10-15 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Lab Test Tube Clamps
Material
Stainless Steel: Offers excellent durability, corrosion resistance, and can withstand high temperatures, making it ideal for various chemical applications and autoclaving.
Plastic/Polymer: Lighter and often more economical, some plastic clamps are designed for specific applications where metal might react or cause contamination.
Type of Grip and Jaw Design
Standard Jaws: Most common, providing a general-purpose grip suitable for most cylindrical objects.
Rubber-Coated Jaws: Offer enhanced grip and help prevent scratching or breaking delicate glassware.
Angled or Specialty Jaws: Designed for specific tasks, such as holding tubes at an angle or in tight spaces.
Length and Reach
Consider the length of the clamp needed to safely reach into beakers, flasks, or heating apparatus without risking burns or spills. Longer clamps provide greater distance from heat sources.
Frequently Asked Questions
What is the primary function of a test tube clamp?
A test tube clamp's main purpose is to securely hold a test tube, especially when it is being heated or manipulated. This prevents accidental dropping, breaking, or spilling of the contents.
Are there different types of clamps for different materials?
Yes, while many clamps are versatile, some are designed for specific materials. For instance, clamps with rubber coatings are gentler on glass to prevent breakage, while robust metal clamps are better suited for high-heat applications.
How do I choose the right size clamp?
Consider the diameter of the test tube or glassware you'll be holding. Most standard clamps accommodate typical test tube sizes, but specialty clamps may be available for unusually shaped or sized items.
Can test tube clamps be used for purposes other than holding test tubes?
While designed for test tubes, many clamps can securely hold other small cylindrical laboratory items. Always ensure the clamp provides a stable and appropriate grip for the object being held to maintain safety.
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