grinding machine

Everything you need to know about a grinding machine

A grinding machine which is popularly known as a grinder is a power tool or machine tool used for grinding. Just like other machine tools, it is a type of machining process that uses an abrasive wheel as the cutting tool. The abrasive grain on the wheel’s surface cuts a small chip from the workpiece through a shear deformation.

Today we’ll be looking at the definition, types, working principle, parts, operations, as well as advantages and disadvantages.

grinding machine


Grinding machine definition:

A grinding machine or grinder is an industrial power tool that features an abrasive wheel for cutting or removing chips from metal surfaces. It can also be defined as a process of metal cutting by using a rotating abrasive wheel from the surface of the workpiece.

Using a grinder on a workpiece that shows low surface roughness, will help to obtain high surface quality, accuracy, and dimension.

Read more: Parts of a Grinding Machine and their functions

The working principle of a grinding machine:

The working of a grinding machine is quite interesting and easier to understand. The grinder features an electric motor that supplies the motion power to the grinding wheel with the aid of a belt and pulley. The electric motor rotates at 150-15000 RPM, well it may vary according to the types of grinders. The v-belt and cone pulley play an important role are the grinding wheel start rotating and the operation gets done.

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Grinding machine diagram:


The followings are the operations that can be performed on a grinding machine:

  • Surface grinding operation.
  • Cylindrical grinding operation (internal and external cylinder grinding.)
  • Centerless grinding operation.
  • Form grinding operation.
  • Wet and Dry grinding operation.

Read more: Operations that can be performed on grinding machine

Grinding Machines Types:

The following stated below represent the various types of grinding machines:

Rough Grinders:

The rough types of grinders are categorized into:

  • Floor or bench grinders.
  • Portable grinders.
  • Abrasive belt grinders.
  • Swing-Frame grinders.

Precision Grinders:

Precision grinders are categorized into:

  • Surface grinders.
  • Cylindrical grinders (Plain, Universal, and centerless grinders.)
  • Tool and cutter grinders.
  • Internal grinders (chucking, planetary, and centerless grinders.)
  • Special grinders.
  • Read more: Types of grinding machines and their working


Grinding machine parts consist of the following parts:

  • Base or Bed
  • Table
  • Headstock
  • Tailstock
  • Wheel head
  • Cross-feed


Read more: Everything you need to know about a grinding machine

Advantages and disadvantages of grinding machines


The following stated below represent the benefit of using grinding machines

  • High surface finish and accuracy are produced.
  • Ability to machine hard material.
  • Less pressure can be applied to work.
  • Ability to work at high temperatures.
  • Offers highly accurate dimensions.
  • Ability to cut any type of metal at a speed rate.
  • It can produce a smooth surface

Despite the great advantages of grinding machines some limitations still occur. The following are the disadvantages of using grinding machines:

  • The tools are highly expensive.
  • Materials are removed little by little, making it a time-consuming process.
  • Operation is carefully done to avoid damage.

That’s it for this article, Understanding grinding machines. I hope the knowledge is attained, if so, kindly comment, share, and check other interesting topics below. Thanks!


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