What Are Belt Sanders
Among the many tools used for giving your workpiece a good finish, a belt sander is one of the top choices that help you with shaping and finishing different materials including wood and metal. The machine consists of an electric motor that automatically turns a pair of drums on which mounted is a continuous loop of sandpaper. You may use a handheld belt sander or move it over different work material. There are stationary or fixed belt sanders which involve the movement of materials directly to the sanding belt.
These belt sanders can be mounted on your work bench. This way, you can make your belt sander a bench sander. You can combine your stationary belt sander with a disc sander.
The Purposes for Using Belt Sanders
A belt sander is used for mainly shaping and finishing wood along with other materials. It comprises of an electric motor that turns a pair of drums. A continuous loop of sandpaper is mounted on the drum. Allowing to move over the material a handheld belt sander is operated by moving a material which is called fixed or stationary belt sander to the sanding belt. These tools are mainly used only for the early stages of sanding process.
Having an aggressive action on wood grain, belt sanders can also be used to remove post-haste on material. By fitting with fine grit sand paper, they are often used for eliminating paints or wood finishing. This tool can also be used to attain an entirely smooth surface.
No other devices are as capable as belt sanders are as the savagely violent force and the high speed of its beats other. The sanding belts are kind of stiffen abrasive cloth which are fitted over two drums of cylinder shape. The belt is allowed to make loop continuously as the motor starts to rotate causing a tension. That results in slipping the belt onto the drums. Most disc sanders have an adjustment tracking lump of round shape. By turning the knob, one can keep the belt on running and so, the belt will be centered.
How a Belt Sander Works
There are a large number in varieties of Belt sanders. But the method goes same for each operating unit. The sanding belt stretches across the two wheels of the sanding device after the user activates the machine. After that, the belt endlessly shifts round the rotating components. The set-up of the sanding belt is done in a way that it makes a loop around the front and the rear wheel and so, it causes the tension. The tension then creates a force similar to tread on the rear wheel to move forward.
Sanding parallel to and keeping it back and forth continuously on the wood grain at the time of making the flat boards smooth is necessary to keep scratches away. This is the right tool to make the narrow edges of the boards smooth.
Clamping few boards altogether and simultaneously, sanding all the edges is time-saving which is known as the gang sanding technique. If you are able to maintain the balance of the wide sanding belt on a single board by ignoring the narrow edge, you can then expect a better result to come.
Standard Sizes of Belt Sander
Belt sanders are of four standard sizes. The accepted sizes of the belt available are: 3”x18”, 3”x21”, 3”x24”, and 4”x24”.
The 3x21-inch model: A 3x21-inch sander is one of the most popular sizes of belt sander. Using this model, you can experience the best combination of power, speed, along with balance at the same time.
The 3x18-inch model: This specific model fits better for the users of beginner level. It becomes easier to control for the users having smaller hands with this compact size.
The 3x24-inch model: The stability is lesser of a 3x24-inch model and is not at all easier to control. This device provides no lesser sanding surface than a 3x21-inch does.
The 4x24-inch model: The model of disc sander is designed for heavy-duty sanding. This model is used for sanding on the large and flat surfaces. Since the model is hard to control, it can cause severe damage unfortunately if it goes in the hands of an inexperienced DIYer.
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