Angle grinder and grinder: how are they different?
What is the difference between an angle grinder and a grinder. The main functions of the angle grinder. Types and purpose of grinders.
Distinctive Features of Angle Grinder
The range of grinders is quite large and, in terms of engine power, they are divided into household and professional ones. The former have low power, simplified functions, and shorter runtime. For home renovation and construction, a great option. The latter are distinguished by greater performance and power. The professional angle grinder is equipped with a spindle speed control and can work for a long time without shutdown. Households are equipped with a handle and have a power of 1.5 kW.
Manufacturers equip an angle grinder with various useful functions:
- Balancing, which stabilizes vibration, preventing the disc from beating against the treated surface;
- Control of the number of revolutions of the disk;
- Speed control;
- Soft start. It is convenient to work with such devices. They start at low revs and gradually gain power;
- Automatic shutdown of brushes if an electrical failure occurs.
The angle grinder is equipped with an angle gear, brushes (cutting, roughing, brushing, dish, cup) or discs of different sizes. Suitable for working with an angle grinder are diamond cut-off wheels that can be used to work on granite, concrete and asphalt, as well as abrasive cut-off wheels, which have proven themselves well when cutting ceramics, stone, metal, slate.
Angle grinder and grinder: how are they different?
Construction and repair work is not complete without cutting, cleaning and grinding various surfaces: metal, wood, stone. Therefore, you cannot do without a quality angle grinder or grinder. Angle Grinder. The colloquial name for an electric tool, the main purpose of which is the abrasive processing of metal, as well as other materials. Today, such a tool is widely used for cutting metal, stone and wood, as well as for processing various building materials, including brick and concrete. Another name for the instrument. Angle grinder. The name familiar to everyone "Angle Grinder" appeared due to the fact that the first samples of an angle grinder appeared in the Soviet Union only in the 70s and they were produced in Bulgaria. The tool has a cylindrical body, attachment and side handle.
Features of the grinder
If it is necessary to sand the material in places where a regular angle grinder cannot reach, it is recommended to use a straight grinder. This is a type of electric tool designed for polishing metal, plastic or wood surfaces. There are many types of grinders on the market, most of them are equipped with a vacuum cleaner that collects shavings, sawdust and other waste.
The following types of grinders are on sale:
- Tape. Good option for polishing large surfaces. Grinding is carried out unidirectionally using a belt located on rollers. Can be used instead of a plane;
- Vibration or surface grinding. Has a flat sole, is equipped with a vacuum cleaner, suitable for grinding wood, plastic, metal;
- Eccentric or orbital. The outsole resembles a circle, used for working with curved and convex surfaces;
- Polishing, which is used to polish painted and metal surfaces;
- Brush. During grinding it rotates on its axis.
As you can see, the angle grinder and the grinder have similar functions. Are used for polishing, grinding and cutting various building materials. But an angle grinder is best used for cutting metals, while a grinder is suitable for cleaning and polishing surfaces.
A sander is a type of power tool for grinding and polishing surfaces of various materials, such as plastic, metal, wood.
Many types of grinding machines have the function of collecting sawdust, shavings, in a word, waste from the work performed. The vacuum cleaner can be either built-in or additionally connected.
How to choose a sander?
Before proceeding with the purchase, you need to decide what specific device you need and what functions it should perform. The tape machine is designed to work instead of a planer. That is, the work of the tool is a rough roughing of paint and leveling the surface. For vibration, work on wood, plastic and metal is more common. Such a machine produces high-quality cleaning and polishing of the material. The orbital sander is designed to work with convex and curved surfaces. Thus, before purchasing this kind of tool, it is important to decide on what surface you will work on and what requirements the electrical appliance should meet.
Angle grinder and grinder – how they differ
An angle grinder is the colloquial name for a power tool designed for abrasive processing of metal or other types of material.
The most important parameter when choosing an angle grinder is disk size. The diameter of the disc determines the depth to which the device will cut the material. Also, do not forget that during operation, the disc gradually erases and becomes smaller, thereby reducing the cutting depth.
Availability of a soft start system
The angle grinder is a fairly powerful power tool, therefore, when it is turned on, the mains can be extremely stressed. The soft start system of the angle grinder helps to avoid such peak loads. over, the smooth start of the grinder significantly reduces the physical wear of parts and the likelihood of damage to the processed material. This starting also reduces the likelihood of injury, since the mechanical jerk when turned on is eliminated.
In the line of Dnipro-M grinders there are two models with a soft start system. MShK-2300P and MShK-2700. These are rugged power tools built for the toughest jobs.
Pneumatic angle grinders
Although electric angle grinders rank first in popularity, pneumatic angle grinders are also in demand.
In order for the tool to function as efficiently as possible, it is necessary to choose a high-quality compressor for it. It is selected depending on the pressure and efficiency indicators. The efficiency of machine operation depends directly on the quality of the compressor. The peculiarities of interaction with a pneumatic drive include the fact that the air must be cleaned of all kinds of oils, impurities and moisture. If the pneumatic angle grinder weighs less than the electric model, this advantage is offset by the weight of the hose. However, every experienced craftsman will take this as a small compensation for the high quality of the work.
Choosing an angle grinder for home use
The simple household angle grinder for home use is designed for infrequent, short-term and low-effort use. As a rule, the choice of an angle grinder for home use is not difficult, because they differ in minimal characteristics:
- Affordable price;
- Lightweight body, weight up to 2.5 kg;
- The tool does not overload the power supply;
- Minimum power 500-900 W;
- The minimum size of replaceable discs is 115 – 125 mm for simple work.
You can find a suitable model for home use on the website dnipro-m.Ua.
What is the correct name of an angle grinder
The invention of the "angle grinder"
The construction of the world’s first angle grinder began in Germany. In 1954, a tool appeared at one of the German factories that we are so used to calling an "angle grinder". Grinders have come a long way to arrive at the modern angle grinder. First there was a machine that operated with a foot pedal. It did not in the least resemble a modern "angle grinder" in appearance, but the functions were similar. By the twentieth century, a portable sander appeared, vaguely reminiscent of a huge ancestor. Next is the first hand-held grinding machine. Now its size was not so large, it became more convenient to work. And so, in the middle of the twentieth century, the first angle-type machine appeared, familiar to almost all of us.
Modern models of angle grinders differ significantly from the first inventions. Angle grinders of the domestic manufacturer InterSkol have a huge innovative potential. Every year, new functions are invented, which greatly facilitate the operation of the tool and increase safety. Here and brushes with self-shutdown, and speed controllers.
Title and brief description
Among the many terms that describe a tool, the most correct would be an angle grinder, or angle grinder. Most people consider cutting metal to be the main function of an angle grinder. In fact, the grinder is also suitable for other abrasive work with metal, tiles, stone, ceramics, wood. A huge selection of attachments allows you to perform a huge range of jobs with just one "angle grinder". That there is one possibility of sharpening tools and removing rust from metal products.
What is the danger of an angle grinder?
The history of using the angle grinder is filled with many tragic facts, but "the wolf is not so terrible as it is painted." Of course, with improper use, haste, carelessness, an angle grinder can injure not only the employee, but also the people around. Avoiding this is simple – to learn and always practice the safety rules established for this tool.
This is what ignoring the safety instructions leads to:
- Working without glasses – a lot of sparks and small particles, metal fragments fly out from under the disc of the angle grinder. They are sharp and hot. If such a particle gets into the eye, it can permanently deprive eyesight. Glasses should be closed type and fit snugly to the face. If you replace them with a mask, it will be generally perfect.
- Failure to use the blade guard. During contact with the surface, the working wheel sometimes collapses. In this case, the element shatters into small parts. The protective cover sets the direction of this flight and removes the debris away from the worker.
- Respirator when working with stone materials. When the angle grinder cuts stone, concrete, marble, a lot of dust is created, which must be inhaled by the operator. The dust not only clogs the airways, but also gets into the throat. All this is dangerous to health, therefore it is better to play it safe using protective devices.
Work clothes often have a loose fit. This is done for convenience, so that nothing hinders movement. But when working with an angle grinder, you should refuse such a robe, because wide pants can be touched by a rotating disc. He quickly "grips" the tissue and injures the body. Light outfits with open arms and legs are also taboo.
What is the angle grinder used for?
This sharp cutting tool is essential when working with stone, metal, concrete. The device also copes well with marble, granite and other rocks. It can be used in any field of activity, but most often the angle grinder is found:
- In the hands of a plumber – he cuts pipes with it, removes rust from their surface;
- In construction and repair work – again cutting pipes, as well as channels, ceramic materials;
- In the operations of the Ministry of Emergency Situations – an angle grinder cut cars after an accident, open access to the premises in case of fire, and more.
A lot of dust from the angle grinder, in addition, sparks and small fragments of the cut material fly in all directions. Therefore, the first rules when working with an angle grinder are the presence of a special shield (protection on the mechanism disc itself) and gloves made of non-combustible material.
How to Work Your Angle Grinder Correctly to Avoid Injury: 3 Ways to Use and 10 Safety Tips
An angle grinder (angle grinder) or, as it is also called, an angle grinder should be in the arsenal of every master. She is a faithful assistant in repairs: not a single laying of ceramic tiles or a cut in concrete can do without this tool. What can we say about large-scale construction and dismantling work: here the angle grinder is a real queen, second only to a jackhammer.
Every builder knows how to work correctly with an angle grinder, but even professionals make mistakes. Injuries sustained from an angle grinder are the responsibility of the surgeon and may not always be curable. The article will skip all the horrors of severed fingers to move on to the main thing – safety, which is not always found in standard instructions. But first things first.
Why is one better than the other – let’s compare similar models
For a detailed comparison, let’s take the most popular models from both manufacturers with similar technical characteristics:
- Angle grinder Makita GA9020SF with a mains motor power of 2.2 kW and an admissible disc diameter of 230 mm.
- Bosch GWS 22-230 JH angle grinder – with the same power of 2.2 kW and the same outer diameter of the disc – 230 mm.
As you can see, the power of the drives is the same, which makes it possible to saw and grind with large wheels with a diameter of 230. Bosch and Makita cost the same, the price is the same, about 3.5 thousand UAH.
What do we get for such a cost:
- Reliable brushed motor with excellent power, Makita has a more revving one – 6600 rpm;
- Robust dustproof housing;
- Adjustable protective cover;
- Reliable fastening with a turnkey clamping nut;
- Two handles – the front one, which can be set and fixed in three positions, and the back one – without adjustment;
- Three-year manufacturer’s warranty;
- Automatic shutdown when the disk is jammed.
As for the set of electronic additional functions, both grinders have a soft start and speed control (spindle speed).
The German manufacturer took care of safety and ruled out unintentional restarting, the Bosch angle grinder has a lock button. But the Japanese angle grinder includes another very important function – maintaining constant engine speed. This means that the motor torque does not drop even when the unit is used at maximum load. Simply put, such an angle grinder will not stall, the revolutions will not drop, the power will not decrease, which is very important when cutting thick metal, with rough grinding.
When comparing the weight, it can be seen that the Makita angle grinder is slightly heavier, but it clearly wins in terms of comfort when working. She has an anti-vibration system installed. As a result, we get:
- Less vibration during stripping (2.5 versus 3.5 for Bosch) and when sanding (6 versus 7.5 for Bosch);
- Lower sound pressure level.
Which angle grinder is better: Bosch or Makita
An angle grinder, as a cutting and grinding tool, is relevant for any repair, both home and professional. The device is universal – it all depends on which angle grinder to use in terms of power, and which attachment to install on it. They buy it not for one-time use, but for many years of service. In order not to get into a mess when choosing and not to get a cheap toy that breaks after several times of use, special attention should be paid to the manufacturer.
Today in Ukraine the most popular manufacturers of grinders are Bosch and Makita. Their tools are durable, practical to work with. Both companies are actively working to improve their technology. Thanks to the introduction of various technical innovations, the buyer receives not only a reliable angle grinder for work, but also great additional functions.
Which angle grinder is better, Bosch or Makita, is an ambiguous question, because both of these brands are winners of all kinds of ratings and trendsetters in the Ukrainian technology market. In short, for long-term loads and professional work, we recommend Bosch angle grinders, and for home use you will not find a better machine than the small and functional Japanese Makita. Buying a Makita angle grinder means getting an excellent helper for both home and professional repairs and construction projects.
Makita – about the brand and benefits
The Japanese brand Makita is known not only for quality technology, but also for constant innovation. There is no better technology in the world today than Japanese ones. The bright red Makita logo on the angle grinder indicates that it will function perfectly and will clearly provide comfortable operation. Japanese materials are known to be of high quality, factory assembly, strictly controlled. The service life is long, and the reliability has been proven by many decades of operation of Japanese devices, including angle grinders.
The assortment should be noted separately. Although we said at the beginning of the article which angle grinder is more suitable for the home, the brand’s catalog contains models for both domestic use and complex professional tasks. For household work, they are taken more for the simple reason that most angle grinders are compact in size, light in weight, and low in noise. And with a light and quiet machine, you can work for a long time and not get tired.
Among Makita grinders you can choose:
- Powerful networked machines for cutting metal, for grinding various surfaces. They are relevant for work indoors, or close to home. The power is excellent, but there is a network cable binding to the outlet.
- Small battery models. They are good because they are always ready to work anywhere, you just need to monitor the battery charge.
The design includes one-hand angle grinder and two-hand angle grinders.
A very generous arsenal of electronic functions is also pleasing:
- Adjustment of the spindle rotation speed, depending on what material is being processed;
- Smooth start (no jerk at the start);
- Support of constant speed (the engine does not stall under load).
Japanese angle grinders are safe to use because they are equipped with:
- Anti-jamming protection;
- Lock button against accidental activation;
- Spindle blocking when changing an accessory.
The more electronic "lotions" in the device, the higher its price, but it is a pleasure to work with such an angle grinder. But, to the credit of Makita, it should be noted that even the cheapest of their models are very ergonomic, with well-thought-out algorithms for protecting against injuries, and very functional.
The angle grinder has several features that have made it popular in the construction market:
- "Soft start" is a function due to which, when starting work, the tool does not break out of the hands of the master. The power tool starts to accelerate from a low speed, gradually gaining power.
- Self-disconnection of brushes is inherent in expensive and high-quality tools. If the angle grinder is disconnected unexpectedly from the mains, the brushes are automatically switched off.
- Balancing makes work much more convenient and comfortable.
Angle grinder – An angle grinder is a power tool used for cutting, grinding and other material handling.
An angle grinder differs from a simple grinder not at all in that it is intended for grinding corners, but in that the axis of the abrasive disc in it, unlike a drill, is located at right angles to the motor shaft.
There are a lot of grinders, but all types of CMM have common features that distinguish them from grinders:
- CMM can work on different surfaces – straight, corner, etc.
- Many of these machines have the function of a vacuum cleaner, which collects the chips that form during operation.
Angle grinder and angle grinder are the same thing. Is it so?
In order to deal with this controversial question: "are the angle grinder and the angle grinder the same?", First of all, we need to find out what each tool is individually. An angle grinder is popularly called a power tool designed for abrasive processing of metal and other materials.
Types of CMM:
- Angle Grinder – Most Similar to Angle Grinder
- Polishing CMM – designed for grinding and polishing metal and painted surfaces
- Belt CMM – suitable only for grinding, as the grinding belt moves unidirectionally
- Vibrating CMM – also called surface grinder
- Eccentric BL or orbital
- Brush SHM – grinds with rotating brushes
Summing up all of the above, we can conclude that these two power tools: an angle grinder and an angle grinder are one and the same, in principle. They are 98% identical. But often, all the same, an angle grinder is used for cutting metals, and for further processing, an angle grinder is already used. Why did the angle grinder and angle grinder, almost identical power tools, come to be called the same word? The answer to this question lies in history. Since the 1970s, a new tool has been imported from Bulgaria to the USSR – an angle grinder. The resourceful proletariat gave its name, simple and close to the people – "angle grinder".
The company "Everest" offers two types of grinders. This tool will become your irreplaceable assistant in your work. Cutting tiles, plastics, wood and metal, sanding various surfaces – everything will be "on the shoulder" with an angle grinder. information in the catalog of the Everest campaign
Orbital sander and eccentric machine
Vibration grinding and eccentric are similar in principle of operation. The engine drives the eccentric connecting rod, which is located on the shaft. The eccentric transmits vibrational movements to the working sole, which actually removes the layer of the processed material. We can say that grinding occurs with a certain amplitude. The only difference between the GSHM and the eccentric in the shape of the sole: in the GSM it is flat and it can only polish flat surfaces, and in the eccentric it is round and it is also suitable for wavy surfaces.
The degree of grinding largely depends on the abrasive of the nozzle we use. The nozzle itself (skin) is attached to the sole with special clips. The surface is processed slowly, but very high quality, therefore GSHM and eccentric models are used mainly for finishing grinding. Here is such Interskol PShM-115 / 300E can be recommended for those looking for good value for money.
Vibration devices are used for wood processing, for example, for sanding doors, for decorating rooms, for restoring furniture (to remove an old layer), as well as for cleaning and grinding a car body. If you have a carpentry workshop, then GSOM will find a worthy place among the tools that you regularly use.
Wall grinders are similar in principle to angle grinders and polishing machines. However, the working disk is rather large here (225 – 370 mm), it is attached in a different way and there is an extension rod in the design (it does not always come with the device). They work exclusively from the mains, so using them in the absence of an outlet will not work.
The main purpose of wall grinders is grinding and polishing the walls after plastering. Also, coarse nozzles can be used to remove old paint and dried, non-peeling old wallpaper. over, the SSM allows you to process a large area in a short time. The device is suitable for finishers who regularly have to prepare walls for painting, plastering or wallpapering.
The main design difference of PSHM from other types of grinders is the presence of an elongated shaft (similar to the trunk of an elephant) and the longitudinal arrangement of the spindle relative to the axis of the device. The spindle allows you to install different types of attachments for processing metal, wood or leather.
The overwhelming majority of models operate from the network, since the device, according to its purpose, must work for a long time. However, a rechargeable model can be purchased for work in the absence of electricity. There are also pneumatic-type devices powered by a compressor. They are somewhat cheaper than other types and are convenient for working outdoors, in high humidity (when there is a possibility of electric shock).
Here is an example of such a PSHM – model Makita GD0600
Due to the design of PSHM, they are convenient to use for cleaning surfaces in hard-to-reach places, for example, narrow holes. It is also convenient to clean welded seams, for example, on heating pipes, when the seam is located on the back wall of the pipe near the wall, and you simply cannot crawl with other devices. We should also mention such an area of use as leatherworking. Leather craftsmen use drills (not to be confused with dental equipment) to treat the ends of the leather, polishing them with a variety of attachments.
PSHM is worth buying if you are engaged in leather processing or the manufacture of decorative wood products. It is also suitable for boring holes (instead of files) and stripping hard-to-reach places.