At present, there are 100# angle grinder shields with diameters of 120mm' 125 # and 65438+247mm150:170mm180: 200mm2m.
Angle grinder, also known as grinder or disc refiner, is an abrasive tool for cutting and polishing FRP.
The common models of angle grinder are divided into 100 mm (4 inches), 125 mm (5 inches), 150 mm (6 inches), 180 mm (7 inches) and 230 mm (9 inches) according to the specifications of accessories used, which are small sizes used in Europe and America.
Electric angle grinder is used to grind, cut, remove rust and polish metal components by using high-speed rotating thin plate grinding wheel, rubber grinding wheel and steel wire wheel. Angle grinder is suitable for cutting, grinding and brushing metal and stone, and water is not allowed during operation.
Guide plates must be used when cutting stone. For models equipped with electronic control devices, grinding and polishing operations can also be carried out if appropriate accessories are installed on such machines.
The angle grinder is designed for grinding, and the function of sawing is not the original intention of the designer. Therefore, please choose a high-quality saw blade with more than 40 teeth, and keep operating with both hands and take protective measures. Because it's too dangerous.
Because of the high rotating speed of the angle grinder, when using the saw blade, you can't press it hard when cutting the edge, and you can't cut hard materials with a thickness of more than 20 mm Otherwise, once it gets stuck, it will cause the saw blade and the cutting edge to break and splash, or the machine will bounce out of control, damaging items and hurting people!
Extended data:
How to use angle grinder to cut slices correctly;
Angle grinder is very popular in many families, and it is an economical primary transformation tool. Angle grinder, commonly known as hand grinding wheel, is an electric grinding tool, which is suitable for cutting, grinding and scrubbing metal and stone, and water is not allowed during operation.
Guide plates must be used when cutting stone. For models equipped with electronic control devices, grinding and polishing operations can also be carried out if appropriate accessories are installed on such machines.
Of course, the angle grinder is also an absolutely violent tool. The rotation speed of the angle grinder is very high, often reaching tens of thousands of revolutions. If used improperly, it is easy to be dangerous! Therefore, how to use the angle grinder correctly has attracted the attention of woodworking enthusiasts. The following are the steps and precautions for correctly using angle grinder in Wanguan Hardware & Electric Network Finishing.
The labor protection articles required to use the angle grinder are:
1, protective gloves, can prevent hands from being injured by sparks generated by grinding, and reduce the injury consequences caused by contact with the rotating grinding wheel.
2, protective glasses, to avoid sparks flying eyes.
3, safety helmet, protect the head.
4, labor insurance shoes, anti-smashing, anti-slip.
5. Work clothes.
6. Dust masks (if necessary), such as cleaning rust, polishing, cutting cement, asbestos and other materials and easy-to-get dust with wire brushes.
First, the preparation work before using the angle grinder
1, Angle grinder should have someone who's in charge, check it regularly to ensure normal operation.
2. When replacing a new grinding wheel, please cut off the main power supply. At the same time, check whether there is any crack on the grinding wheel before installation. If it is not easy to distinguish with the naked eye, lift the grinding wheel with solid wire, and then tap it gently with a piece of wood to listen to its sound. Metal sound is superior, but silence is inferior.
3. The angle grinder must have a firm and suitable grinding wheel cover, and the bracket shall not exceed 5mm from the grinding wheel, otherwise it shall not be used.
4. When installing the grinding wheel, the nut should not be too loose or too tight. Check whether the nut is loose before use.
5. After the grinding wheel is installed, it must idle for 2 ~ 3 minutes to see whether its operation is balanced and whether the protection device is appropriate and reliable. During the trial operation, two workers should be arranged, one of whom stands on the side of the grinding wheel to start the grinding wheel. If there is any abnormality, the other party will immediately cut off the power supply at the power distribution cabinet. In case of accidents.
6. All users should wear protective glasses, not facing the grinding wheel, but standing on the side. When using the angle grinder, gloves are not allowed, and it is forbidden to use cotton yarn to wrap the cutter for polishing.
7. Before use, check whether the grinding wheel is in good condition (there should be no cracks, cracks or disabilities) and whether the grinding wheel shaft is firmly and reliably installed. Whether there is sundries between the angle grinder and the protective cover and whether it meets the safety requirements, and then start the angle grinder after confirming that there is no problem.
References:
Baidu encyclopedia-angle grinder