What is the difference between the eccentric grinder from the orbital

What Grinder Is Better Eccentric or Vibratory?

Very often in everyday life people have a need for repair work in the apartment, on the dacha. Many are faced with the need to level out, sand down, remove the old layer of paint, etc.д. Such processes can be done manually with good old-fashioned sandpaper, but then a lot of time would be spent.

To optimize such actions, it is worth buying special equipment designed for such purposes, namely, a grinder. The domestic markets are full of all sorts of varieties. They differ in the principle of operation (there are belt, vibratory, orbital), type of power (mains or battery), power, quality of assembly and parts and other parameters.

This article will present a rating of eccentric grinders. In recent years they are preferred by users. They are versatile devices, with which it is easy to handle any surface.

What is better a vibrating or eccentric grinder

How to choose a grinder Perhaps nothing is more difficult than making a choice. Especially if you have a vague idea of what you practically need from the proposed. This is almost always the case with grinders. Most of these tools include only an angle grinder. Not one hundred percent reasonable. Directly angular grinder, or angle grinder, first appeared on the Russian market, immediately won popularity because of its functionality. But at the moment on the market with angular grinder successfully neighboring flat, eccentric, belt machines, many subspecies. With all this universal tool is unacceptable. No matter which machine is good in this case. How to choose the most suitable one? What questions to ask yourself not a salesman to direct your attention in the purchase?

Let’s try to understand it all.

What do I need, the first question, addressed first to myself personally: What model do I need, prof as it is also called domestic? the answer is free as for all power tools the general rule acts: the basic difference of the professional tool from amateur (household) consists in its rich motor-resource, not greater time of continuous work. Prof. class tools are usually those designed for multi-shift work in a saturated mode of operation. Requirements for such machines are higher, respectively, the material from which the parts are made, more robust, and the design of power tools means that it is resistant to heavy loads.If you intend to work from case to case, there is no need to spend money on a professional tool. With 20 hours of work for a month will simply manage household models. Already at this point, their weight is not the size, you, less than the tools for experts, which means that use them more convenient.The undeniable advantage of an amateur tool is its low price.

Question 2: Why do I buy a grinder? Here, without the help of a salesman, you can not do without. It should not explain the following: According to the principle of operation grinding machines are divided into flat, eccentric, belt and not angular. The machines belonging to the listed groups, different accounting system sanding, with which they are better managed later as it is also called another type of work. Let’s explain their features in detail.

Let’s start with the larger group. Flat grinders, as it is also called vibrating machines, are named so because of the flat sole that performs reciprocating movements with small amplitude, but with very high speed.

These devices are designed for final surface treatment before painting or varnishing, removal of paint or varnish deposits before repainting, etc.д. wood, stone, plastic, composite materials, metal.

These devices are subdivided into rectangular sanders and not delta sanders. The latter are distinguished by the small size is not made forward soleplate, the shape resembles the base of an iron. Deltashlifovalnye machines are easy to manage with the processing of hard-to-reach areas are not small details (furniture, window frames, hollows are not corners, chamfers do not t. д.).

Choosing for himself a vibratory sander recommend to check the amplitude of the movement of the sole. This is one of the principal features of this type of tool. The simpler the amplitude, the faster the surface processing is not the rougher the similar oil will be. If the machine naturally has the function to adjust the frequency of vibration, then set the different modes for processing those otherwise speaking of other materials.

We recommend choosing a model equipped with a built-in vacuum cleaner. About so the principle detail should be narrowed, whichever type of grinder you give preference. There is no doubt that the dust generated by sanding is harmful to health, in addition, the quality of sanding in the removal of dust will increase significantly, and the wear of sanding sheets are not the machine itself is planned slower.

For abrasive material on the surface grinders use emery on woven as it is called non-woven base. Mounting the abrasive on the machine soleplate depends on its type. For machines with a rectangular machining surface, it is created by means of clamps, which fix the ends of the sanding sheet, or by means of velcro. Only Velcro is used for delta sanding tools. All types of attachment. its pros and cons. So, machines with clamping mounts are cheaper (it’s easier to pick up consumables), but Velcro mounts are more convenient. When, such a wonderful thing as a brake of the sanding pad, limits the acceleration at idle, extends the life of the machine does not exclude uneven sanding at the edges.

Comparative analysis of grinders

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What Everyone Should Know

Today no one works with an emery on a wooden bar anymore. This really is an outdated method, which, although effective, but does not give the proper result. It should be understood that every year finishes are getting thinner and thinner, and any unevenness on the wooden surface will be clearly visible. Of course, the wood grinder for home use need not the most expensive, but about this we will talk a little below. Another thing is if you work in the production, where you have to process wooden workpieces on a daily basis. Here the choice is obvious. the tool must be professional. But in general, we can talk about a relatively low cost, although much depends on the manufacturer.

Let’s try to understand what grinder to choose and what to look for when buying. Not everything is as complicated as it might seem at first sight.

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What Grinder Better Eccentric or Orbital

The eccentric sander. for clean sanding of all surfaces

(orbital) is one of the universal “garage” tools, allowing the home craftsman to facilitate the performance of sanding virtually all surfaces are not materials.

What models are available for the eccentric grinder?

Pneumatic orbital grinder has a fairly common device. On a round backing pad, referred to as the soleplate, is fixed a removable sanding sheet, which does not make the means of making a smooth surface to any material. Different models differ in the method of mounting the sanding sheet, in addition to the material of its manufacture. With grinders used sheets made of the following materials:

According to the method of attachment tools are divided into two groups: with clamping not with Velcro. Tools with clamping cheaper to use, as well as the grinders themselves, but consumables have the lowest price. The main main advantage of slot models with Velcro is the ease of changing the grinder. The design of the grinder a can include a dust extraction as it is also called a device that allows you to connect an external vacuum cleaner.

Orbital grinder is comfortable for narrow finishing sanding. Grinding quality is ensured due to the fact that the sole plate simultaneously performs reciprocating and rotational movement. This distinguishes orbital models from other sanding tools. For example, the vibrating grinder performs only rotational movements, thus providing the necessary vibration.

difference, eccentric, grinder, orbital

What parameters you should pay attention to when choosing a grinder?

The most important technical parameter for any tool is its power. Orbital

The eccentric sander can have a power of 150 to 1000 watts. Depending on the model, this machine can be used for household or professional purposes. Machines with a power rating of approx. 400 watts are ideal for polishing various workpieces.

Unlike similar tools, the pneumatic orbital sander has a round base plate. The diameter of the soleplate of different models can vary significantly. The universal tools with a diameter of 125 mm are considered to be. The “RPM” of the tool is the most important indicator of its performance. It is best to work with models that have a soft start function, allowing you to gain speed without jerks. Achieve perfect grinding results can be achieved by using models that have a speed controller.

Pneumatic eccentric grinder can be equipped with additional functions:

Control by means of electronics and additional functions allow the master to select the optimal mode of operation of the machine, depending on the characteristics of the processed material.

For example, painted surfaces are processed at low speeds, hard materials. at high speeds. With the right type of sandpaper, the grinder can be used for polishing surfaces. As a result, the purchase of such a model eliminates the need to purchase additional tools, such as a polishing grinder. Hard grinding discs are used on flat surfaces, soft. on curved surfaces.

How to choose a grinder. Types of grinders on the principle of operation.

This video explains in detail which grinders

are, consider the principle of operation of each type

Lesson 4 ” Orbital and eccentric grinders in what is the difference. Risk overview ” ( painting )

Greetings, you! To begin with, I recommend good online shopping. goods and services at an affordable price: the Field

How to choose the right grinder?

What is needed in order for the eccentric grinder to meet all the requirements of the home craftsman and was able to solve the tasks at hand? The answer is one. choose the right tool, taking into account the important parameters. Experts recommend paying attention to the following criteria:

difference, eccentric, grinder, orbital
  • power;
  • rotation speed;
  • Availability of smooth adjustment of rotation;
  • The frequency of oscillation of the grinding plate;
  • the diameter of the plate;
  • the possibility or impossibility of changing the size of the stroke of the eccentric;
  • Availability of dust extraction;
  • weight.

Let’s look at the important parameters of choice in more detail. The power of the machine directly affects the quality of grinding, but more powerful models have a significant weight and are less convenient to work. Adjustment of rotation and frequency of oscillation allows you to choose the optimal mode of grinding. The speed range can be between 2 000 and 13 000 rpm, but usually 5 000 to 6 000 rpm is sufficient for home use. The maximum speed should not be the decisive factor in your choice, as it is mostly unnecessary.

important from a practical point of view is the availability of functions such as speed stabilization, soft start, etc.п. These extra features can significantly improve the quality of grinding. It is desirable for the machine to have a function to change the eccentric stroke. The average performance is 2 to 6mm. Finer stroke values result in higher quality of workmanship. Rough grinding requires a longer stroke.

It should be noted that the models with the function of changing the stroke of the eccentric relate to the expensive price segment, so for domestic purposes is not always advisable to buy them.

What Grinder is Better Eccentric or Orbital

The eccentric grinder. for clean sanding of any surfaces

(orbital) is one of the universal “garage” tools, allowing the home craftsman to facilitate the performance of sanding virtually all surfaces are not materials.

What models are eccentric grinders?

Pneumatic orbital grinder has a fairly common device. On a round support plate, referred to under the sole plate, is fixed removable sanding sheet, which does not make the means of making a smooth surface at least any material. Different models differ in the method of mounting the sanding sheet, in addition to the material of its production. The sanding machines are used with sheets made of the following materials:

According to the method of attachment tools are divided into two groups: with clamping not with Velcro. Tools with clamping are cheaper to operate, as well as the grinders themselves, no consumables there have the lowest price. The main main advantage of playing slots models with Velcro is the ease of changing the grinder. The design of the grinder can be equipped with a dust outlet, as it is also called a device that allows you to connect an external vacuum cleaner.

The orbital sander is comfortable for narrow finish sanding. Quality is ensured by the fact that the base plate simultaneously performs reciprocating and rotational motion. This distinguishes the orbital models from other sanding tools. For example, a vibrating grinder performs only rotational motions, thus providing the necessary vibration.

What parameters should be paid attention to when choosing a grinder?

The most important technical parameter for any tool is its power. Orbital

The eccentric sander can have power from 150 to 1000 watts. This machine can be used for household or professional purposes, depending on the model and purpose. The tools with power around 400 W are ideal for sanding various workpieces.

The pneumatic orbital sander has a round base plate, which is very different from similar tools. The diameter of the soleplate can vary greatly from model to model. Tools with a plate diameter of 125 mm are considered to be universal. “Speed is the most important variable of performance. It’s easiest to work with models that have a soft-start feature that allows you to gain speed without jerking. Models with a speed regulator for perfect grinding results.

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The pneumatic eccentric grinder can be equipped with additional functions:

Control by means of electronics and additional functions allow the master to select the optimal mode of machine operation, depending on the characteristics of the material to be processed.

difference, eccentric, grinder, orbital

For example, at low speeds, painted surfaces are machined, at high speeds, hard materials. With the right type of grinder, the grinder can also be used for polishing surfaces. As a result, the purchase of such a model eliminates the need to purchase additional tools, such as a polishing grinder. Hard sanding discs are used on flat surfaces, soft. on curved surfaces.

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How to choose a grinder. Types of grinders on the principle of work.

This video explains in detail about what grinders

be, reviewed the principle of each type

Lesson 4 ” Orbital and eccentric grinders. what’s the difference. Risks overview ” ( Painting )

Greetings, you! To begin with, I recommend good online stores. Affordable products and services: the Field

How to choose the right grinder?

What you need in order for the eccentric grinder to meet all the requirements of the home craftsman and be able to solve the tasks? The answer is to choose the right tool with important parameters in mind. Experts recommend paying attention to the following criteria:

  • power;
  • rotation frequency;
  • the availability of smooth adjustment of rotation;
  • Frequency of oscillation of the sanding pad;
  • the diameter of the pallet;
  • the possibility or impossibility of changing the stroke of the eccentric;
  • availability of dust extraction;
  • weight.

Consider the important parameters of choice in more detail. The power of the machine directly affects the quality of grinding, but more powerful models weigh significantly and are less convenient to work. The presence of adjustment of rotation and frequency allows you to select the optimal mode of grinding. The speed range can range from 2,000-13,000 rpm, but as a rule, models with an indicator of 5,000-6,000 rpm are quite sufficient for home needs. Do not be guided by the maximum rpm when choosing, because in most cases they are not required.

difference, eccentric, grinder, orbital

important from a practical point of view are functions for speed stabilisation, soft start, etc.п. These additional features offer a significant increase in grinding quality. It is desirable for the machine to have a stroke control function. Average values are 2 to 6 mm. A smaller stroke enhances the processing quality. Rough grinding requires a long stroke of the eccentric shaft.

It should be noted at once that models with the function of changing the magnitude of the eccentric stroke belong to the expensive price segment, so to solve home tasks their purchase is not always advisable.

The diameter of the plate is another important parameter. On average, this value is 125-150 mm. There are models with a smaller diameter. A tool size of 125 mm across is considered universal. effective are grinders with a 150-millimeter soleplate. Before picking up this or that model, it is worth investigating the market of consumables in the region, as there is a high probability that later it will be difficult to pick up abrasive sheets.

What they are?

Designed to be used in combination with various materials. For woodworking, choose models with the largest platform size and a huge stroke capacity. They allow you to successfully work even the corners of floors and walls. The mini versions are comfortable to use in inaccessible places, have a small-sized platform and low power. For works on metal PRM used in machine shops, also in the manufacture of doors, fence constructions.

The equipment can remove old paintwork, scratches, corrosion and oxidation marks. Triangular or dell-shaped bottom plate is indispensable for restoration of old furniture and furnishings. It is convenient for paint stripping window frames and door jambs. Models with optional tooling can work with a round nozzle, substitute for eccentric counterparts.

Technical characteristics

The quality of the tool is determined by its parameters. Before you figure out how to work properly with an eccentric grinder, you need to study its technical characteristics.

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

Work eccentric orbital grinders have not only horizontal surfaces. that’s why another parameter. tool weight. is so important. The more powerful the machine, the heavier its motor is, the more uncomfortable it is to operate the machine by weight. Mass of a household SSM is about 1.5-2 kg.

Deltoid grinders

This is a separate class of vibratory floor grinders, because their main difference is the delta-like soleplate. Popularly, the deltoid grinder is called “iron.

Some manual grinders of this type have a rotating working pad. In these machines, the triggered angle of the emery can be changed simply by turning the machine’s sole plate.

Thanks to its tiny dimensions, the “iron” has good “passability” and is used for machining complex surfaces, e.g., for car body repairs.

Polishing grinders

Polishing machines are mainly used for sanding (polishing) car bodies. In its appearance, the polishing machine is very similar to an ordinary angle grinder, but differs from the angle grinder in the following ways.

  • The handle is located on top of the housing, i.e. parallel to the work tool.
  • The machine has a low minimum spindle speed (from 800 rpm), which is very important for polishing work. For comparison, the angle grinder may have this figure in the range of 2800 rpm.
  • There is a function to keep the revolutions at the same level even under load.
  • Polishers are always available with adjustable speed and soft start.

Polishing machines can also be of the cordless type.

You should know that the cordless grinder is able to work effectively only 20-30 minutes, after which it is required to put it on a recharge.

Planetary grinders

This type of grinder is used for polishing and grinding stone surfaces, such as in the manufacture of fireplaces, window sills, countertops, and other items of this material. The planetary planetary grinder consists of an electric drive and a planetary grinding base.

As equipment on this device use a flexible grinding discs with a diamond coating. The machine is equipped with nozzles for water cooling in the place of treatment and has a socket for connection with a vacuum cleaner. The latter is connected to the CMM to remove stone dust when “dry” grinding the material.

Mosaic sanders

Mosaic-grinder is used for processing of mosaic and concrete monolithic floors, as well as stone coverings. With the help of this technique you can:

  • level out the various potholes and repair defects in the flooring;
  • level floors flat;
  • to give the surface a certain degree of roughness before coating it with various decorative and protective compositions;
  • polish large areas of concrete coatings.

As equipment on the concrete in mosaic-sanding machines are used special cutters. frankfurters. Also these cutters grind and floor mosaic.

Polishing grinders

Polishing grinders are used primarily for grinding (polishing) car bodies. By its appearance, the polishing machine is very similar to the usual angle grinder, but differs from the angle grinder on the following features.

  • The handle is located on top of the housing, i.e. parallel to the working tool.
  • The machine has a low minimum spindle speed (from 800 rpm), which is very important for polishing work. For comparison, the angle grinder may have this figure in the range of 2800 rpm.
  • The speed can be controlled at the same level even under load.
  • Polishing machines are always available with adjustable speed and soft start.

Polishing CMM can also be of the cordless type.

Please be aware that the battery-powered sander can only work effectively for 20-30 minutes, after which it needs to be put on a charge.

What types of grinders are there

The polishing machine (PM) is an indispensable tool for all kinds of finishing works: polishing and grinding of metal, wood, concrete, stone and other surfaces. Therefore, it is not difficult to guess that the choice of grinder is made taking into account the types of work that are expected to perform in each case. Existing types of grinders can level out irregularities in different materials, eliminate height differences, to perform rough and finish sanding of surfaces. They differ not only in their design, but also in the principle of operation.

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than fifty models of “orbital machines” are on the market today. From the popular brands stand out:

bo. Among these products are compact and cheap eccentric machines.

Bosch. Wide range of quality models, mostly medium and large (over 600 W) power, medium size. The main part of the models are equipped with useful options (no-load braking system, adjustment of the speed and eccentric stroke). Upper medium price range.

Makita. Wide range of models that are suitable for both garage work and for trade workshops. Equipped with a good dust extraction system, have adjustable blade speed and eccentric stroke. Some models have additional removable handles.

Deltoid grinders

This is a separate class of vibrating CMMs, because their main difference is the delta-like soleplate. Popularly, the delta grinder is called “iron”.

Some manual sanders of this type have a turntable. In such units, the triggered angle of the emery can be changed by simply turning the sole of the unit.

Because of their diminutive size, the “iron” has good “cross-country ability” and is used for hard surfaces, such as auto body repair.

Overview of eccentric grinders: characteristics and tips for use

CBN, or “orbital sander”, are considered to be the crowning achievement of grinders. They do not have high productivity, but the quality achieved at work is incomparable to any other tool.

Although they can be used on all types of surfaces, be it wood, metal or plastic, they are most popular in car repair shops. “Orbiters” are used for sanding and polishing parts of the body before or after painting. For super-fine polishing machines are used, but even an electric polishing machine can produce quality results.

The disadvantages of this tool are few, and all of them are in one way or another related to the peculiarities of the construction of the ESHM. First, the orbital sander should not be used on uneven areas or places with complex topography. the edge of the round sole can ruin hours of work by scratching the surface. Secondly, the eccentric grinder is of little use for processing corners, again because of its shape.

How to choose a power grinder

To choose a tool that will serve you for a long time and cope with all its tasks, listen to our advice:

  • Decide how much money you are willing to spend on an “orbital”. 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 the quality, as always, the price increases.
  • Quality and productivity are opposite when it comes to a power hobbing machine. If beauty is more important to you, choose the tool with a small eccentric, about 3 mm. If you want speed, the best choice is a model with a 150mm diameter soleplate and the stroke range of 5 to 7mm.
  • Amplitude of movement indicates the amount of displacement of the vertical axis of the base relative to the motor axis. The higher it is, the higher the performance, but the lower the accuracy of grinding. Indirectly, a large amplitude can be indicated by the diameter of the grinding “plate” of the ESHM.
  • Power is the main characteristic of all power tools. It affects performance and varies between 200 and 500 watts. power. more weight. Of course, it’s good to buy an eccentric sander with extra power, but do not get carried away. In addition, the cost of electricity also needs to be paid.
  • If possible, it is imperative that you hold the model in your hands and turn it on. And sometimes your hands will tell you which tool you feel most comfortable working with.

Extra features and functions

Modern power tools are packed with all sorts of electronic systems. Their main function is to protect the mechanical part of the device and make working with it as comfortable as possible.

The electronic system, for example, keeps the wheel speed constant regardless of the load on the motor. This improves performance and protects the electric motor from breakage. Almost all professional power tools are equipped with this feature.

The starting current limiter system protects the power supply from sudden voltage peaks and eliminates the so-called “start jerk”, when the tool tries to jump out of your hands.

Automatic sole brake will protect the operator and the work surface from accidental contact with the switched off grinder, whose circle continues to rotate by inertia.

in addition to electronic “devices”, the orbital sander, as a rule, has on board a branch pipe for connection of an industrial vacuum cleaner.

Look at the construction of the eccentric cover and the sanding pad. If they are metal, you are in luck. such a model is more durable and better protected against overheating.

The detachable power cord is easy to replace in case of damage. You don’t have to disassemble the tool and lose your warranty.

optional, but nice little things like lockable on/off switch, adjustable additional handles and rubber pads on the chassis complete the appearance of the tool and add a little more comfort when working with it.

Accessories for eccentric grinding machines

Grinding wheels come in different grit sizes, depending on their purpose. Different tools are used for different materials. Metal sheets can handle wooden surfaces, there are also universal attachments.

Buy eccentric orbital grinders in Minsk. store online

Disc sanding machines are designed to work with smooth and relief surfaces of different materials. The tool is considered universal due to the ability to perform both coarse grinding and fine polishing. But the traditional task for such devices is fine machining in the final stages of grinding. Buy an eccentric sander can repair cars, work with wood (sanding parquet, wooden walls and various details), metal, plastic.

Grinders of this type got their name from the name of the eccentric. the working disk, which is mounted on the shaft of the device, the axis of rotation of which does not coincide with the axis of the shaft.

The work surface of the tool not only rotates, but also vibrates. This guarantees a quality sanding with a high level of productivity.

Grinding discs of various diameters and grain sizes are used as accessories. They can be attached to the sole of the grinder with Velcro, which guarantees the convenience and ease of use.

Classification of eccentric grinders

By design (motor location) are distinguished grinders:

  • with a vertical motor. lightweight tools with a handle located on top, which work with one hand;
  • with the motor located horizontally. more massive devices that have an additional handle for easy handling of the grinder with both hands.

Also grinders are classified according to the level of professionalism. In the range of most manufacturers of power tools you can find and buy eccentric grinders for domestic or professional use. They differ in power, working life, and overall performance.