The grinding machine tool desktop. Machine grinding and grinding table

If you often have to deal with cutting tools or drills, then you notice that they have a tendency to lose their sharpness. Naturally, in this case they can not perform their functions in full. The grinding machine desktop will allow to correct a situation. However, you first need to understand the features of its use.

Description and application

So, the bench grinder is a small device equipped with rotating abrasive wheels. Due to its small size, it can be installed not only in production conditions, but also in a home garage.

Used grinding machine grinding table for sharpening knives and tools used to mount structures, drills, scissors, axes. Naturally, this procedure can be done manually, but it will take a long time. In addition, you can use a grinding machine tool for cleaning tools from rust, polishing some surfaces with a felt wheel.

Advantages

The device has the following advantages:

• Simplicity and reliability of design. It may take a very long time to operate the machine under proper operation. Put the device directly on the table.
• A different landing diameter for grinding wheels.
• The possibility of using additional disks: felt, metal brushes. This tool is most often installed on universal devices.
• Quite low noise and vibration.
• Dust protection of the main elements of the apparatus. This extends the life of the equipment.
• Ability to adjust the tool stop.
• Protective screen. It is necessary in order to prevent the ingress of chips or sparks into the eyes.

Construction device

So, the bench grinder has a fairly simple structure:

1. Asynchronous electric motor. It is able to provide a relatively low speed of rotation of the circles and a relatively low noise level.
2. Grinding wheels (abrasive). They are located on both sides of the engine in parallel to each other. One of them has a large grain and is used for rough machining of the tool, and the second - for fine grinding. The upper part of the circles is covered with a protective cover. Most often in the work used corundum circles.
3. Stand. It serves as a support for the tool being processed. It can be adjusted in height and turned at the right angle. If you want to choose a grinding machine for grinding a table with an additional function for processing drills, then note the presence of special grooves for them.
4. Transparent protective screen. He will not let sparks and metal shavings get in your eyes.
5. Power on / off button.
6. Power cord.

The grinding machine is additionally equipped with a lamp to illuminate the working area.

Specifications

Before you select the device, you need to understand its parameters. The grinding machine desktop with two sanding discs basically has such technical characteristics:

• Voltage during operation: 220 V.
• Power: from 200 W to 5 kW.
• The diameter of the circle: 15-25 cm, and its thickness: 1.6-3.2 cm.
• Speed of rotation of the spindle at idle: 1300-2980 rpm.
• Weight: about 3 kg.

Types of apparatus

If you decide to purchase a grinding machine bench, the types of devices should be considered. Classify the product as follows:

1. Universal. It can handle completely different tools. Such a device is equipped with usual and special devices, by means of which the product can be fixed.
2. Special. Such a machine serves for sharpening only one kind of tools, therefore it has a narrower range of applications.

In addition, there is a grindstone for wet processing and a grinding-grinding machine. In the first case, a circle is used at low revs, while its part is necessarily in the tray with water.

Grinding and grinding machine table, the price of which can fluctuate within 1200-70000 rub., Instead of one circle is additionally equipped with a grinding belt. This makes the device multifunctional.

Features of product selection

If you decide to buy a grinding machine, how to choose a product is the most important question. Here the following parameters should be considered:

• Device type. If you are engaged in frequent, but unprofessional sharpening of different tools, it is better to choose a universal option. The home appliance can work continuously for no more than 20 minutes. After work, he should have the same amount of rest. Professional devices can work much longer.
• For what the product will be applied. You may need additional circles: with metal bristles or felt.
• The cost of the device. If you do not need to use it too often, then do not buy an expensive machine.
• Permissible circle size.
• The maximum size of the tool that will be processed.
• Frequency of spindle rotation.
• Additional functions and accessories.
• Manufacturer. It is better to give preference to those manufacturers who have a good reputation.
• Power. At home, you do not need a very powerful device.

Terms of use

In order for the tool to work properly for a long time, and you did not get injured, it must be used correctly. Observe the following operating instructions:

1. During work, try to apply the tool without a slope, skew and the whole plane to the circle.
2. Sharpening often provokes incandescence of the blade. In order to avoid such a situation, it is necessary to control the speed of the revolutions of the sharpener - it should be low. In addition, the stone should be periodically dipped in water.
3. If the blade has a uniform burr all over the edge, then the tool can be stopped. To the necessary "ideal" it can already be brought manually.
4. The presented device does not require special care, however, it should not be kept in dust. Periodically it will be necessary to remove metal shavings and dust.
5. In order to use the presented tool, professional skills are not needed. However, instructions for using it should be read.
6. During the work you need to be attentive and focused. No unnecessary things or tools should stop you. After use, the machine must rest.
7. If the unit is defective, do not repair it yourself or plug it into an outlet. It is better to turn to a special service, where the device will be diagnosed and its functionality restored.

That's all the features of grinders. Good luck!