Grinding Machines and Types

Machines in which grinding wheels are fitted and grinding is done, such machines are called grinding machines. On the basis of their function, they can be divided into two parts. Ordinary grinding machines are widely used. These are called rough or snagging grinders. The following types of grinders are included in this category.

Types of Grinding Machines:
Following are the types of grinding machines:

1. Bench Grinder
These types of grinding machines are fixed on a workbench or table. Gear or pulley is fitted in it. For rotating the big-size gears or pulley a handle is also fixed. It contains one or two grinding wheels. Edges of cutting tools can be made with this grinder. Provision can be made to operate these with power also.

2. Hand Grinder
This grinder is also fixed on the workbench or table. There is a provision of moving the grinding wheels with a level as shown in the figure.

3. Pedestal Grinder
Types of Grinding Machines – Pedestal Grinder
These types of grinding machines are operated with electric power. This is fitted on a pedestal frame separately on the ground. A grinder wheel is fitted each on both sides of the shaft of the electric motor.

Tools rests are also provided with them. These are the most widely used in the workshops. Edges of all types of cutting tools are made with these grinders. Apart from this, molded articles can also be cleaned with it.

4. Portable Grinder
Portable Grinder and Flexible Grinder
This is a small grinder operated with electric power. It can be easily carried anywhere. Grinding can be done by holding it in hand. It is used for cleaning heavy welding jobs.

On one end of the motor shaft, a grinding wheel is fitted and on the other end, a handle or switch for operating the machine is fixed according to our convenience. It should be used carefully since there is a possibility of getting an electric shock.

5. Flexible Grinder
These types of grinding machines are shown in the figure. The electric motor in this grinder is fitted on such a basis that it can be moved in any direction. A flexible shaft is fitted on the motor shaft with the help of a coupling. On one end of the shaft, a grinding wheel and handle are provided. Large jobs can be easily grinded with this grinder.

6. Precision Grinder
In this type of grinder, a movable spindle is fitted in the grinding wheel. This spindle is fitted on a table along with its motor. With this spindle, the grinding wheel can be turned in forward, backward, left, or right direction in running condition. Jobs of excellent finish and accuracy are grinded with it. These grinders are of the following types: