Table of contents:
- The principle of operation of the belt sander
- Varieties of belt grinders
- Tips for choosing a belt sander
Video: How To Choose A Belt Sander
2024 Author: Douglas Hoggarth | [email protected]. Last modified: 2023-12-16 13:29
- The principle of operation of the belt sander
- Varieties of belt grinders
- Tips for choosing a belt sander
The principle of operation of the belt sander
The belt sander is a kind of hand-held power tool for sanding wood, plastic, metal, ceramics and other surfaces. It is used for polishing and leveling various surfaces. The principle of operation of such a device resembles the operation of a tracked tractor. The main working tool of a belt-type sander is an abrasive belt, which is glued into an endless circle and moves along two guide rollers. When it comes into contact with the treated surface, grinding occurs. Depending on the material to be processed, the thickness of the removed layer, tape of various widths and grain sizes can be used. The coarser the grain, the larger the layer that is removed.
Varieties of belt grinders
It is customary to distinguish two types of belt grinders, depending on the scope of application:
- Household - designed for short work and small household tasks. They have low power, low performance, limited number of functions, as well as affordable cost, compact size and light weight.
- Professional grinders are designed for intensive and continuous work. Therefore, higher requirements are imposed on them, in particular, such devices are in many ways superior to household grinders in terms of the quality of materials, reliability of units, functionality and productivity. However, their cost is higher.
Mostly there are flat-bottomed belt-type grinders. They resemble a plane. Angle grinders or a belt file with a narrow abrasive belt can be used to process parts in hard-to-reach places.
Tips for choosing a belt sander
When buying a belt sander, first of all, you need to answer the question for what kind of work it will be used and, depending on this, select a device according to such technical parameters.
Power is the main parameter for the operation of any power tool. The more powerful the belt sander motor, the higher its performance and the longer it can run without stopping or overheating. For household purposes, devices with a power of up to 700 watts are suitable.
The speed of the belt is an important parameter when choosing such a device. It is measured in meters per minute and ranges from 200 to 500 m / m. Devices that have a high belt rotation speed are suitable for processing large surfaces, and a small one for grinding small parts, when it is necessary to do the job accurately, almost jewelry. In order not to have to buy several devices at once to perform various tasks, the advantage should be given to a grinding machine with the ability to electronically adjust the speed of rotation of the abrasive belt, which is capable of performing any task.
Dust collector - thanks to its presence, the quality of work is improved and the safety for the health of others is increased. In addition, the dust container extends the life of the tool. There are two types of belt sanders, which are equipped with a plastic or reusable dust bag, or can be connected to an industrial vacuum cleaner that forces dust in the process. Such devices are equipped with a special adapter.
The soft start system is a very useful addition to all the functionality of a belt sander. It will allow you to smoothly start the engine, which increases the resource of such electrical equipment and thereby increases its wear resistance.
The presence of special devices that simplify the process of working with a grinder:
- Angle stop - required to obtain a precise cut or a flat parallel surface.
- Support frame - is a kind of limiter that prevents damage to the workpiece.
- Vise or special stand - allows you to turn a portable hand-held power tool into a stationary machine.
- Additional handles - make work more comfortable.
In addition, when choosing a belt sander, special attention should be paid to the material from which the abrasive belt is made, its width and grain size.
Typically, abrasive belts are made from a variety of materials. It can be ordinary fused alumina or ceramic coating, silicon carbide and other materials. The basis of the sanding belt is paper or polyester. The grain size of the tape depends on the quality of the material to be processed. Coarse grain has a high penetration depth into the treated surface, so it must be used to remove a thick layer. The fine-grained belt has a large number of cutting points, which makes it suitable for grinding difficult-to-penetrate materials, as well as removing thin layers.
The width of the belt must be matched to the dimensions of the belt sander. The correct abrasive belt ensures excellent machining quality and extends tool life.
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