A surface grinder is an extremely useful tool which can be used to make various types of cuts. This is possible because these tools use a variety of rotating discs of diamond or other material that grind small particles of materials into small flakes. A diamond plate is usually used on a grinding wheel along with various sized wheels and discs. When the wheel rotates at a high speed, the pressure inside the diamond causes the surface to be ground into a rough finish.
The best way to describe a surface grinder is to think of a small belt conveyor belt. The metal work being cut includes a variety of sharp edges along with the grinding wheel. The work is moved from the grinding wheel by using a series of clamping devices that clamp the work piece in position to be cut. After the surface is ground to a rough finish, the work is moved to another area and the process continues until all of the desired results have been achieved.
The most common type of this equipment is called a table top surface grinder. These are often used by electric grinders to grind small items such as screws and bolts. There are also hand held grinder types that can be used effectively and with greater precision than electric grinders. Most of the friction that occurs between the grinding wheels and the workpieces is due to the rotation of the discs. Because of this, grinding wheels with larger and heavier plates are needed to prevent the friction from damaging the workpiece.
A flatbed grinder is another type of surface grinder that uses a rotating bed of diamond or other material to move the abrasives across a flat surface. The flat bed of the machine is designed to move across a number of flat surfaces without touching any raised parts of the surface. This allows for the use of multiple diamond abrasive particles on one single flat surface. These types of surface grinders are often used by abrasive metal workers to fine tune flat designs on various metals. It is important to note that because of the large size of the rotating disk, there is sometimes an element of slippage which can lead to an undesired situation.
Another type of grinding wheel is a rotary vane grinder. Unlike a surface grinder, rotary vane grinder forces materials through a very large travel path. The grinder utilizes a series of gears and rollers to follow the belt movement of the abrasive wheel throughout the work piece. This method of grinding utilizes significantly more power than a surface grinder and can be very efficient when used properly. The largest disadvantage of this type of grinder is the time it takes to grind long, straight lines. If you need to grind curved lines then the rotary vane grinder is not the best solution.
There are basically two types of grinders that use a ball bearing rotary grinding wheel and a pinion type rotating wheel. Although the two types of grinding wheels have different names, they are both the same. Ball bearings are the most common type of milling machine wheels and they are typically found in portable, table top, and chuck wheel variations. The two types of grinding wheels, along with their unique characteristics, are necessary for the proper operation of every grinding machine.