Grinding for what you need an eccentric grinder. Circles fastening

Eccentric grinding machine: features and principle of operation

Among the whole variety of power tools, harsh requirements of T.to. This technique is created to give the final type of processed surface. There are a significant set of types of devices created for grinding and polishing: angular, tape, vibration, brush, etc.D. Each of them is created for certain purposes. Respectively, the quality of processing they have different.

The main goal of finishing work is to bring surfaces to an ideal state. This cannot be achieved by mechanical devices. Grinding units will help to quickly and efficiently perform this work.

There are several types of such devices that differ in functionality, principle of operation, class. For delicate finishes, it is recommended to use an orbital grinding machine.

Thanks to the soft soles of rubber, the device will allow you to carefully perform such types of work:

The main feature of these machines is that in addition to eccentric rotation of the sole, a radial. This provides high.quality polishing of planes of various slopes and curvature.

Device and principle of operation

Orbital grinder provides good decoration of planes due to their constructive features. The device of the unit is presented at

The principle of operation of the tool is not complicated and presented with the following moments:

• The working circle is mounted on the sole;
• the drive is attached to the basis;
• When the device is turned on, the abrasive rotates around its axis;
• A pulse that makes it hesitate is filed on the sole.

note! Both movements occur in parallel, from which the trajectory of the course of abrasive elements is not repeated. Due to this, the quality of polishing is ensured.

What is an eccentric type grinding machine

Ashm is a tool that appeared in the second half of the last century. For the first time, the German company Festool began to engage in the release of such devices. They are used for grinding metal, wood and even plastic.

The quality of processing in these power tools is in no way inferior to models that are equipped with a conventional grinding disk. Ashm also process materials evenly, without damaging their surface.

Additional Information! A huge number of such devices are produced today and therefore people often do not know how to choose an eccentric grinder for wood and metal.

How to choose an eccentric grinder

It seems to some that choosing an Ashm is quite simple. However, this Deleko is not so. To purchase a good and inexpensive tool, it is not enough to simply study the rating of grinding machines of eccentric. You also need to get acquainted with the parameters that you need to pay attention to when choosing.

Power

When buying Ashm for a home, it is necessary to consider the power of the device. To choose the most optimal option, you need to decide on the sphere of use of the tool. For example, for home use, you should not buy too powerful models. The most suitable choice will be a device with a capacity of about 300-400 watts.

If you often need to grind hard and rough surfaces, you will have to find the model more powerful. Ashm, which will be given from 700-800 watts are ideal.

Frequency and amplitude of oscillations

This is one of the most important indicators that must be taken into account while choosing a new grinder. The fact is that it is the productivity of the device and the quality of surfaces that depends on the frequency and amplitude of the oscillations.

For thin grinding, models with a minimum amplitude of about 2-3 mm are suitable. If you need to engage in rough grinding, then you will have to look for a power tool with higher indicators.

The diameter of the platform

Picture 2 on the diameter of the working platform depends on which nozzles can be used for grinding

All grinding machines are equipped with special platforms, with which nozzles are attached for surfacing. In the top grinding machines of eccentric, models are included in which the diameter of the plate is 125-150 mm. This is the optimal size that is suitable for working with metal surfaces and wood.

Additional Information! There are models on sale in which the diameter is not so large. They are used for thin grinding of small products.

Operating conditions

When choosing a grinding machine, it is necessary to take into account the conditions for its operation. For example, if it is rarely used at home to process wood, you do not need to buy too expensive Ashm. Any budget model is suitable for this.

If this device is bought for everyday use and processing of solid surfaces, you will have to familiarize yourself with the rating of the most powerful eccentric grinders. Budget models are not suitable for such tasks.

Ergonomicity

It is recommended to purchase ergonomic and mobile models that can be used away from sockets. They are equipped with special batteries, which allow the use of ASHM anywhere, regardless of whether they are connected to the power source.

The ergonomic of the tool is affected by its dimensions. Do not purchase too large grinders, since using them is not very convenient. It is recommended to buy compact models. They sit well in their hands and work more conveniently.

What is the difference between an eccentric grinder and vibrational

Grinding machines of both types are designed for one purpose. processing and polishing of wooden and metal surfaces. But between the units there are important constructive differences.

Eccentric machines, which are also called orbital, are equipped with an eccentric, which makes it possible to make reciprocating or circular movements. The power of such units is an average of 170-750 W. Use them for cleaning, polishing and polishing parquet, furniture, and car body.

Round workpiece of grinds allows you to use the unit for specialized or curved parts

Vibration devices, also known as flat.grinding, are equipped with a rectangular platform with mounts for an abrasive canvas. In the process, it is necessary to perform reciprocating movements by the device to align the material. The grinding device is suitable for polishing wood and metal, plastic and stone, composites.

Attention! To achieve more accurate grinding when using PSM, you need to move it at high speed, but with a low amplitude.

Thus, the difference between the tools consists mainly in the form of a working nozzle. Due to the features of the design of PSHM and orbital machines, they demonstrate different results when applying.

Which grinder is better to choose. eccentric or vibrational

Buy vibration grinder or eccentric for the house depends on the goals set. Both devices allow you to remove old paintwork, process a car body, polish furniture, doors and other blanks.

In this case, flat.grinding models are more often used for rough peeling of wide surfaces. The degree of accuracy of polishing largely depends on the abrasive installed on the sole. But in general, machines with a rectangular platform provide careless black cleaning. With their help, it is convenient to remove the old coatings, so that then to achieve perfect smoothness with other devices.

Grinding machines with a rounded nozzle provide thinner polishing. They are more often used for finishing work, when the material should not only be cleaned, but make it as smooth as possible.

Better eccentric grinding machine or vibrational. also depends on the features of the polished part. Plant.grinding models with a flat rectangular sole are well suited for processing shelves, steps, window frames and door leafs.

If the surface is curved or has decorative elements, then it is more convenient to use the orbital grinder to polish it. The rounded sole allows you to process radii and small parts of a non.standard shape without unnecessary difficulties.

The scope of use in planning grinding machines as a whole is narrower than in orbital

If a grinding unit is needed for professional use, then it is better to buy models of both types at the same time. In this case, the devices can be used alternately. for a rough peel and finish stripping.

Specifications

There are several parameters that are worth paying attention to when choosing. It is advisable to learn more about everyone.

Power

There is a direct dependence: the more powerful the device is, the more manufacturing the work will be, respectively, the less time a person will spend to process a specific surface. If the device is used for household needs, power up to 1000 watts is enough.

Rotational speed

The purpose of the tool depends on the equipment. For example, if you have to process solid materials, you will have to work at high speeds. For polishing, you can use low rotation speed.

Professionals recommend paying attention to the ability to adjust the rotation of the shaft to configure the tool to a specific type of work.

The size of the equipment

The size is directly related to the work area. For example, if you have to work in a limited space, you will have to look for equipment with a small size of equipment.

Weight

As a rule, the most heavy units are professional, since a powerful engine is installed in them. This indicator must be selected individually, depending on the physical capabilities of the user (only this approach will be correct).

A smooth start

Modern devices are often equipped with a smooth start function. This means that when starting the turnover, it will be recruited gradually, it is extremely important if jerks need to be avoided.

The length of the cord

In recent years, the manufacturer began to provide consumers with the choice of cable length. This is very convenient if it is not possible to use the carrying. just pick up the unit with a long wire.

Revolutions adjustment

This is a useful function, because it turns the usual grinding machine into a universal tool. By adjusting the speed, you can select the use mode.

Protective functions

The more expensive the unit, the more protective functions he has. For example, you can choose a device equipped with automatic shutdown when overheating. There is also a function that protects the operator from random launch.

Rubber overlays on the handles

Rubber overlays help in work, because with prolonged use, the hands can sweat, because the device will slide. Rubber overlays avoid this difficulty.

Vacuumber

This is an additional equipment of the unit. There is no vacuum cleaner in standard configuration, and therefore it needs to be purchased separately. At the same time, you need to make sure that such an addition is suitable for a specific type of grinding machine.

Popular manufacturers

There are a large number of different grinding machines from different manufacturers in stores of construction equipment. But experts recommend paying attention to the following brands:

For many years, these manufacturers have been producing construction electronic and pneumatic equipment, and have proven themselves from consumers.

Technical characteristics of eccentric grinders

A significant parameter affecting performance is the diameter of the circle of vibration, which is also called workers, grinded in other words of an eccentric course. The higher the move, the higher and performance. The effort with which the user presses on the instrument at one time of work also affects the result of grinding.

It should be borne in mind that the highest performance performance is not necessarily needed. For example, while working with lacquered surfaces, accuracy is more important during work. Data on the cross.cutting of the circle of vibration indicate how accuracy there is an option to work.

With unspoken grinding, the strong pressure slows down the rotation of the grinding plate, which provides especially a good final result. The main rule says: the smaller the circle, the cleaner the grinding, and opposite. Such a macar, a small circle of vibration is not just suitable for unspeakable grinding, but large (in a composition with a massive engine). for processing huge surfaces with the highest performance of chips removal.

Attention! The higher the grinder speed, the more frisky, at the same time coarser surface processing. Massive tools are characterized by the highest performance.

Brake system of grinder.

The eccentric machines of certain manufacturers will first interfere with the surface of the surface, and then turn on. The grinding plate brake, go, just saying, the automatic braking system prevents the formation of grooves when plate plate on the material if the machine is already turned on.

The dialects of grinding plates for eccentric grinders, which are 115, 125 and 150 mm, are the most convenient. Often, already in the very title of the instrument, there is an indication of the size of the plate. Grinding plates with a diane of 115 and 125 mm in particular, good for processing are concave.convex surfaces, and additionally different roundings. The plates with a diane of 150 mm, on the contrary, are not just suitable for gross work and created for huge flat surfaces. As a result, with a large cross more of a grinding plate, depending on the granularity of grinding circles and vibration circles, grinding performance above. If you need clear work in narrow places, a car with a plate of the smallest dialect is preferable.

Most of the eccentric grinding machines have the function of dust removal. It can be performed by several methods: through the sole, with the help of dust carrier, in another way with the help of a hose and a bag for collecting dust. Of course a model where, of course, disconnect a vacuumber or change its position.

The best household tool

The grinder of the domestic class is used for episodic work with a short duration. It has a small power engine, a limited number of useful options for choosing a processing mode.

Zoshm-450-125 bison-inexpensive in its class

Inexpensive, simple and convenient tooling tools. Designed for half-willed and finished grinding and polishing work. It is possible to smoothly change the number of revolutions through electronic setting. Comfortable work is facilitated by light weight and two.component handle.

BlackDecker KA-198-Optimal for its own car

The compact with an ergonomic grinder body will successfully fit into the kit for the care of her own car. Perfect for performing thin grinding and polishing processes before coating the surface of varnish or enamel. Formed dust captures a bag of dust. With intensive work, a vacuum cleaner is connected.

• High performance when polishing.
• Suitable for processing large surfaces in area.
• The main purpose is thin grinding and polishing of metal planes.

Hammer OSM-430-commercial use in a private workshop

The eccentric orbital machine equipped with a powerful engine will perform an expanded series of operations: cleaning, grinding and polishing surfaces made of wood, metal and plastic. The optimal processing mode is facilitated by the electronic system of adjusting the speed numbers. Abrasive equipment-grinding and polishing circles are fixed by means of “Velcro”.

Interskol Ashm 125/270E. the lightest

Easy practical unit for rough and finishing grinding. Performs polishing operations. Processes wood, metal, plastic. It is possible to use the premises. the peel and smoothing of irregularities on plastered or putty surfaces. Thanks to a small mass, it is convenient to work under the ceiling.

Ruobi Ros300A. the highest quality

A rather powerful, qualitatively assembled eccentric grinding machine will make it rude and finishing the products of plastic, metal and wood products. The capabilities of the unit allow restoration work with ancient furniture. An advanced innovative dust removal technology has been introduced into the design. a cyclone mechanism has been installed.

• He copes with his purpose perfectly. polishes and polishes perfectly.
• High assembly quality.
• Great price for household model with advanced characteristics and configuration.

Network eccentric grinders

The pluses of tools that function from the network include high power, duration of continuous operation. At the same time, the length of the wire rarely exceeds 2. 3 m, so it is more difficult to use them in places removed from the outlet. For productive grinding, you need to buy a carry in advance, which is not always practical and convenient. The popularity of network Ashm is due to a low price. With the same technical characteristics, battery models are more expensive. Based on the results of testing from 10 nominees, 6 network devices were included in the rating of eccentric grinders, which were recognized as the best in quality, productivity and ease of operation.

Dewalt DWE6423

The aggregate of the American company is equipped with a 280 watts engine. It provides a disk rotation frequency from 8,000 to 12000 rpm. Speed ​​can be changed using a regulator. The presence of a special element with hooks and a loop that facilitates the replacement of a grinder is provided. The installed Velcro for its fastening guarantees reliable fixation.

The diameter of the disk is 125 mm, and the platform is 2.4 mm. It is often bought for carpentry or small construction work. Small weight and rubber lining provide convenience of operation, and the presence of a separate counterweight practically excludes vibration.

The small size of the design allows the user to approach the processed surface. The device includes a vacuum cleaner that facilitates the support of cleanliness at the workplace.

• Blocking button lock;
• Build quality;
• Dusty switch;
• Revolution stabilization system;
• Rotation speed adjustment;
• Cord length. 5 m;
• Vibration is almost not felt.

Users note that small weight and a small distance from the sole to the surface of the stop of the arm reduces fatigue of the latter, allows you to better control the work of the tool. The owners estimate the technical parameters of the unit high, so the model recommend 97 % of respondents.

Wert Ees 125DE

Engine power in this model is 350 watts. The tool with a fluctuations frequency of 26000 stake/min works. The amplitude of the movement of the platform 2 mm and the diameter of the disc 125 mm are designed for the use of the unit only for processing even surfaces in domestic conditions, small carpentry workshops. The functionality provides for the possibility of adjusting the speed of rotation, blocking the launch button.

The case is made of durable materials, the handle has a rubberized surface, which provides good adhesion with hand. The inclusion button is protected from contaminants with a silicone cover. The presence of a plastic container with a filter for collecting dust is provided, but for a more efficient cleaning of the workplace, it is recommended to connect a vacuum cleaner. At the same time, the adapter is not included, but there is a sandpaper with a granularity of 80 grids.

• Small weight;
• Compact dimensions;
• Low price;
• Reliable engine;
• Lack of backlash;
• Revolutionary control regulator;
• Ease of use.

In the reviews of the eccentric grinder of the manufacturer, users note the ease of work, the absence of strong vibrations, the quality of the assembly of the main nodes. After an hour of work, the case does not heat up. The disadvantages include a cheap cord that tapes in the cold, the dubious device of the brush knot. The device is suitable only for wood, weak protection of the bearings does not allow you to polish metal surfaces.

Makita BO5031

In terms of technical parameters, the Japanese model is similar to previous nominees. The engine power is 300 watts, the rotation frequency is from 4000 to 12000 rpm, the diameter of abrasive paper is 125 mm. The grinder is also attached on the basis of Velcro. At the same time, in terms of movement amplitude, the tool exceeds the above units described. Its value reaches 2.8 mm.

The device is equipped with a speed regulator, a grinding circle, a paper vacuumber, which is installed on the pipe. The engine provides forced waste absorption. The lock button is provided. The main advantage is the versatility of the Makita unit. It is suitable for wood, metal, plastic, even surfaces and with the presence of bends. To reduce vibration, the case is equipped with rubberized pads. Its features and lack of overheating with long work guarantee the convenience of using the device.

• The ability to connect a vacuum cleaner;
• Speed ​​regulator with 5 positions;
• Double isolation;
• Compact dimensions;
• Small weight;
• Protection of the launch button from dust;

A big plus of eccentric grinding grinding makita highlight the presence of a good set of consumables. diamond and plate wheels, polishing nozzles made of sheepskin, foam rubber, felt. The disadvantages include the effectiveness of the vacuum cleaner, a short cord, the high cost of new circles, the lack of a case. 88 % of respondents recommend buying an unit.

Zoshm Zoshm-450-125

The compact machine for grinding surfaces from various materials is equipped with a 450 W engine. Using an electronic control system, rotation speed can be changed from 5,000 to 13000 rpm. The low price of the unit was reflected in the amplitude of oscillations, which is only 2 mm. 125 mm sole diameter is also characteristic of cheap tools.

Two.component handle provides reliability of model retention. The dust system provides for the removal of waste into a plastic container through multiple penetration at the base. The kit contains an adapter for a vacuum cleaner, grinding paper. The stiffness and length of the cable of 2 m slightly reduce the convenience of using the device. Do not recommend applying the model in the cold.

Which grinder is better? Eccentric or vibrational?

Eccentric differs from other types of machines in that its working part moves simultaneously in two directions. This is reciprocating, as in vibrational and circular movements. As a result, the disk goes in a circle, while at the same time looping around its axis. All movements occur in one plane in parallel processed surface. Rotation relieves material, vibration cleans and polishes the surface. The depth of processing is adjusted by pressing the machine.

Eccentric grinding machines by a power source are:

Electric is more convenient in that it can work for it almost wherever there is a socket. In extreme cases, you can use a battery or generator. But the pneumatic has its advantages. She works with compressed air. To do this, you need to install a compressor or a cylinder nearby, in which the air is under pressure.

Advantages of pneumatic grinders

The question arises: why mess with compressors and cylinders, when you can include a cord in a socket or put a generator and work without problems? But no. The difference between electric and pneumatic eccentric machines is significant.

• The tool working from the air does not have an electric motor. Therefore, it is much easier, from 1 kg to 600 g against approximately 1.5-2.2 kg of electric. During operation, the machine has to be kept in the hand for a long time. Therefore, the grinder is getting tired.
• With a light tool, it processes the surfaces better. Especially if they are located vertically or above.
• If there is no motor, then there are no many details that may fail. And the breakdown is a repair, often expensive. Or the need to buy a new tool. Thus, buying a pneumatic grinder, we save money and time.
• A pneumatic eccentric machine will last longer.

Specifications

The quality of the tool is determined by its parameters. Before finding out how to work correctly eccentric grinding, it is necessary to study its technical characteristics.

Important! The larger the amplitude, the worse the quality, but higher performance.

Eccentric orbital grinders are not only on horizontal surfaces to work. Therefore, another parameter is so important. the mass of the tool. The more powerful the machine, the harder its engine, the more uncomfortable it is to operate with the device by weight. The mass of household Ashm is about 1.5-2 kg.

Select Ashm

To choose a tool that will serve for a long time and cope with all the tasks set for it, listen to our tips:

• Decide how much money you are ready to spend on an orbiting. There are two classes of tools. household and professional. The former are suitable for short and irregular work, the latter are designed for frequent use and are very reliable. Together with quality, as always, the price increases.
• Quality and performance are opposite things if we are talking about Ashm. If beauty is more important to you, take a tool with a small eccentric. approximately 3 mm. If you need speed, the most suitable option will be a model with a sole diameter of 150 mm and an amplitude of the course from 5 to 7 mm.
• The amplitude of the movement indicates the amount of displacement of the vertical axis of the sole relative to the engine axis. The higher it is, the higher the performance, but less accuracy of the grinding. Indirectly, the diameter of the grinding “plate” of Ashm may indicate a large amplitude.
• Power. the main characteristic of all power tools. It affects performance and ranges from 200-500 watts. Large power. large weight. Of course, it’s good to buy an eccentric grinding machine with a power supply, but don’t get carried away. In addition, electricity costs also need to be paid.
• If possible, be sure to hold the model in your hands, ask to turn it on. Sometimes the hands themselves suggest which tool they are more comfortable working with them.

Rating of eccentric grinders

In the market of working tools, you can find many interesting OSM options, both Russian manufacturers and foreign. Some of them (judging by the ratings) are more popular among consumers and professionals, others. less.

If you choose a tool from the professional category for personal use, in this review it is recommended to pay attention to the models from “Metabo” and “Bosch”. They are convenient in work, equipped with a voluminous vacuumber, provide high quality grinding.

Network eccentric grinders

Orbital machines operating from the network are more often used in the professional field. Thanks to the constant power source, unlimited operation of the device is ensured, which allows you to process large surfaces in a short period.

These models are more convenient in everyday life and workshops with a small volume of work. Battery OSHMs are indispensable where there is no possibility of connecting to an electric network. But the operating time depends directly on the energy intensity of the battery, which requires periodic recharge.