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Grinding Machines

About Grinding Machines

These days we use power tools to do most of the heavy lifting in construction and manufacturing. Tools like grinding machines and electric cutting machines reduced the time and effort required for them to a significant extent.

Technology has replaced manual labour in lots of different areas. Today, it is possible to complete a task that used to take many days in a matter of a few hours using modern technology. This is great because we can get more done in less time and spend less money. But to do a task efficiently, you have to use the right type of equipment for the right tasks. Read this article to know more about grinding machines and accessories. Having a better understanding of them will help you make the right choices when you are making the purchase.

Different types of grinding machines

Grinders are useful for a variety of different needs. You can use a grinder for polishing a surface, removing excess material, filing an uneven metal surface, or finely reducing the size of an object. But for each one of these tasks, you need a different type of grinder. To understand which type of grinder to use, it is important to know about the major types of grinders out there and how to use them. Read this article to know about the four most common types of grinders people use.

Surface grinding machine

The major distinguishing feature of a surface grinding machine is its adjustable head. Depending on the workpiece, you can either lower down the head or lift it up. But it can be more flexible than that. Even when you adjust the height of the head, the grinding wheel of the machine allows further forward and backward adjustments to suit your workpiece. The reason why most people use a surface grinding machine is to remove excess material from the surface. It is almost similar to the filing. It does not produce any polishing effect on the material.

Gear grinding machine

Gear grinding machines are similar to surface grinders in function. However, they are designed for removing excess material from the surface of shafts. Therefore, the structure of a gear grinder is significantly different from a surface grinder. The design of gear grinders gives importance to precision rather than speed. But as the pitch of the gears varies from each other, you will need a set of different grinding heads as well. If you don’t want to change heads between jobs, you can get a global gear grinding machine instead. Such machines come with adjustable heads.

Die grinding machine

These are handheld grinders and smaller in size compared to other machines for that matter. To make it easier to handle, there will be a compressor unit that is separate from the handheld grinder. This air compressor provides power to the die grinder through a strong hose. But there is another type of die grinder that does not require an air compressor. Instead, those machines directly run using an electric motor. However, the downside of such machines is that they are not as powerful as the ones that run using air compressors.

Belt grinding machine

As the name suggests the abrasive part of a belt grinder is a rotating belt. The belt works on the surface like sanding paper. Similar to surface grinders, the primary purpose of belt grinders is to remove unwanted material from the workspace. But unlike regular surface grinders, belt grinders can produce a smoother and cleaner finish. The belt also experiences wear and tear as the machine works. Therefore, you will have to replace the belt when the abrasiveness of the belt wears off. Belt grinders are very useful when you want to grind away excess material from the metal surface.

Tips on how to buy Grinding Machines

Finding the right grinding machine is much harder than you might think. Because there are so many different types of machines that come in different sizes and offer a variety of features, it can be hard to determine the right one. If you happen to get the wrong machine, you will end up wasting a lot of money. But how exactly do you make sure that you are getting the right one? In fact, it is fairly easy if you know what criteria to consider when you are shopping for them. Here are some tips that you can follow when you are shopping.

  • Look for the types – The first thing to look for when you are buying a grinding machine is its type. The machine you are buying should be suitable for your work. If you want to polish a metal surface, a regular surface grinder will not work. Similarly, a belt grinding machine is not useful for removing excess material from gear shafts.
  • Choose disk size or belt size – The size of the belt also matters a lot. While bigger belts or bigger grinding disks are great for covering a large surface area in less time, it takes them more time to remove material from a given surface area. Nor are they great for precision. On the other hand, a narrower belt or disk provides higher levels of precision while covering less surface area.
  • Check on power source – Most grinding machines run either using a battery or by drawing power from a wall power outlet. The performance characteristics of the grinding machine vary quite a bit depending on the power source. Generally, grinders that run on battery prioritise portability over performance.
  • Look for weight and size – The weight and size of the machine dictate how and where you can use it. There are really large grinding machines that are not meant to be operated handheld. Therefore, you will have to keep the machine fixed and move the object that you want to shape or polish instead.

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Question & Answer

What is the use of an angle grinding machine?

Angle grinders are probably one of the most versatile grinding tools out there. They are useful for a variety of different tasks, like polishing, sharpening, cutting tiles and pavers, and routing out mortar. Because they come in a lot of different sizes, it is also easy to find an angle grinder for any job. Another benefit of them is that they are not that expensive to own. You can find an angle grinder of decent quality for really low prices. In order to get the most out of an angle grinder, you will also need a set of different disks.

What is the difference between grinding and polishing?

The major difference is that grinding involves the removal of a significant amount of material from the surface. Grinding is necessary for removing saw marks and any other tangible defects on the surface. Grinding does not give you the final finish that you want on a surface. Even though it can remove rough edges, it will still leave the surface looking dull. Polishing, on the other hand, is a much finer type of grinding. The abrasives for polishing are microscopic particles. Also, it will only remove a tiny bit of material from the surface.

Can you use an angle grinder as a sander?

When there is a need to remove a lot of material from a large wooden or metal surface, the easiest way to do it is to improvise using an angle grinder. It is also relatively easy to convert an angle grinder into a sander. All you need to use is a few flap discs. However, these should be disks that are specifically designed for an angle grinder. Unlike grinding disks, flap disks use an overlapping arrangement, or flaps, of sandpaper in the form of a disk. These disks can be incredibly effective when you use them with an angle grinder.

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