Laboratory Tweezers

November 1, 2021

Laboratory tools are as essential as the reagents and substances with which the experiments are carried out. One of the most important is the laboratory clamp, a metal or wooden instrument that allows you to firmly hold containers and other glass or plastic materials.

What are they?

They are a type of fastening element that can be made of wood or metal depending on the type of clamp. Metal clamps are those that allow you to hold different glass objects (such as burettes, flasks and funnels) or to carry out more elaborate assemblies. They have a double nut to be attached to a foot or laboratory support or to a frame or grid depending on the assembly to be carried out.

Metal tweezers consist of two parts:

An instrument or cylindrical rod: Connects with the support or grid by means of a double nut lock. This latch allows for both horizontal and vertical adjustment and can be rotated for easy mounting.

A metal clamp: Similar to a pair of pliers. It is composed of two arms that hold the neck of the jars or glass elements by means of a screw that is manually adjusted. Each arm is covered with cork, felt, plastic or PVC to avoid direct contact of the glass with the metal.

What are they for?

Tweezers can vary in size, materials, opening angle, and other details. Depending on the type of clamp we will find different functions.

Three-finger gripper: It can hold thin rods and elements with very large diameters, since its opening angle reaches almost 180 degrees.

Wooden clothespins : They are common tools very similar to clothespins. They allow us to hold the test tubes while we heat or handle them. These clips are unsupported and must be held at the longest end.

Plastic clips: These allow you to hold hot containers. Some resist temperatures up to 200 ° C. They are especially useful for handling electrically charged items.

Fischer forceps: They are known as burette forceps. They have a double clamping in two close points, which prevents the burette from bending.

Crucible tongs : They are shaped like pliers or scissors and have an end adapted to hold a crucible while it is heated to high temperatures.

Dissecting forceps and slide forceps: Can be found in biology and medical laboratories. They are used to hold objects used in a dissection.

Dr. Loony Davis5
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Born and raised in Brussels in an English family, I have always lived in a multicultural environment. After several work experiences in marketing and communication, I came to Smart Water Magazine, which I describe as the most exciting challenge of my career.
I am a person with great restlessness and curiosity to learn, discover what I do not know, as well as reinvent myself daily, someone who is curious about life and wants to know. I enjoy sharing knowledge.
This is my personal project but I also collaborate in other blogs, it is the case, the most important web on water currently exists in the US, if you are interested you can read my articles here.

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