Flat -grinding or eccentric which is better. Which grinder is better? Eccentric…

Choosing a grinding machine for wood

For professional and domestic purposes, a grinding machine is often necessary to polish some kind of coating or remove the old layer. Most often wood needs wood. Pilomatterals of ideal quality are rarely found on sale that do not need preliminary preparation, and they are much more expensive. Therefore, a grinding machine for wood should be at hand for every master.

How to choose from the whole variety of grinding machines, because all tools use one abrasive material. sandpaper, but the results are different. This happens due to the fact that different models have their strengths and weaknesses.

Some grinding machines are needed for rough cleaning, others polish the surface better. Those cars that are not designed to work with large areas are good for point work in hard.to.reach places.

It is necessary to understand for what types of work the tool will serve, for general leveling of the surface or for finish grinding, because in both cases a different tool will be required.

Ribbon grinding machine

The ribbon grinding machine (abbreviated LSM) got its name because of its principle of operation, in which sandpaper in the form of a ring, continuously moves with the help of built-in rollers around the sole.

LSM for grinding wood can be used for rough cleaning. in preparation before thinner processing. This grinder is the most productive compared to other models. She is able to cope with a large volume of rough grinding, but it is not recommended to perform finish processing.

It is used during carpentry work on wood, not designed for further painting, so that subsequent finish grinding with another tool takes less time. When installing sandpaper with fine grain, you can achieve average quality processing of the material.

Such a machine is good to use close to the wall, but only one side line.

  • When working, the machine leaves a lot of scratches, the number of which can be reduced if grinding along the wood fibers.
  • With inaccurate use, it can make a hole on the surface of the material, which will be difficult to remove.
  • Due to the features of the design, it is impossible to get to hard-to-reach places, such as corners and grooves.
  • Issues loud noise during operation, so it requires special headphones.
  • The action of the video implies the elevation of the tape in front and back, so the grinding occurs only in the center of the abrasive tape.
  • It is difficult to clean the vertical surfaces.

Planning grinding machine

A flat.grinding machine is also called a vibrational, vibration grinding machine. She can perform finish work before painting, varnish coating. It is suitable for grinding large surfaces, but its performance is lower compared to the strip model, but it makes it much less than the noise.

The platform in this model has a rectangular shape and is equipped with spring clamps for fastening sandpaper. On the bottom there may be Velcro for better holding the skin, but it is not on all models. To remove dust during operation on the platform, holes are provided, connected to the output for connecting the vacuum cleaner, or a container for collecting dust.

It works due to small circular vibro movements performed with a high frequency of its lower working surface-a grinding platform. Eccentricity (oscillation amplitude, platform stroke) of the platform movements on average is from 2 to 5 millimeters. In small, square models, it can be 1.5 mm. The frequency of platform vibrations varies greatly depending on the model, on average it is 12,000 stake/min. It is good if the frequency adjustment is provided.

Plateau of the plate of a flat.grinding machine

This model has a significant drawback. when grinding, it can leave round traces. “lambs” if a sandstone or other garbage falls between sandpaper and the surface during sandpaper and the surface. Such a defect occurs due to insufficient dusting, and is eliminated by sandpaper with smaller grain in several iterations. Therefore, the surface is first carefully cleaned, the construction vacuum cleaner is used to immediately remove all foreign elements.

Traces of garbage that fell under the sole of a grinding machine

The grinding area is limited, models with a platform of more than 2 mm are difficult to grind high-quality to the walls close to the walls-in the inner corners, at a distance of about 4-8 mm to the surface perpendicular to the grinding. She will just beat the sole against the wall and this can ruin the product.

Eccentric grinding

Eccentric grinder is also called orbital. She has a round sole for which sandpaper is glued on Velcro. There are holes on the sole of the orbital machine, into which dust falls during grinding. Dust accumulates in a special vacuum cleaner and it must be periodically cleaned. Instead of a vacuumber, you can connect a construction vacuum cleaner.

Devices and nozzles

The price of a manual grinding machine makes you think about the need for its acquisition and many try to make an analogue of corner grinding, a drill or a home.made device.

Both for an angular grinder and a drill, there are special nozzles that allow grinding wood.

Velcro disk on a corner grinder

For grinding wood with a corner grinder, special circles with Velcro for sandpaper are used.

When grinding, corner grinding is taken in different directions with neat movements. From a collision with a nail hat or sudden movements, a grinding circle is torn. Using paper of different granularity, you can carry out rough and medium grinding of a wooden surface. At the same time, the speed of work will be faster than with other grinding machines.

It will be difficult to perform finishing work, t.to. She needs to work very carefully so as not to damage the product. The tool will constantly take aside, tear out.

The nozzle does not have a dusting, which is why the garbage will constantly accumulate under sandpaper and interfere with work, leave scratches, and speed decreases. The disk is cleaned, grinding the metal for several seconds. During this time, all sticking dust particles burn out.

Nozzle on the drill

To adapt the drill for grinding work, you will need a special nozzle, similar in design with a nozzle for angular grinder. a grinding plate. Often the nozzle is complete with an adapter in order to install it both in a cartridge of a drill or electric screwdriver, and on a corner grinder.

It is very difficult to work with such a nozzle with a drill, more difficult than with a corner grinder. It constantly leads, the drill pulls out of the hands so that you can get an injury or stretch. The shortcomings that were listed above are also relevant, in the chapter about the nozzle for angular grinder.

But, if there is no other choice, then it is better to find a plate for grinding, which has a soft rubber between the sole and the mount, which will be easy to bend if you keep the drill not evenly.

Grinding nozzle for the Flexo Fix drill

Such a floating effect of the nozzle will slightly simplify the grinding process, but will not relieve all other shortcomings of this method.

Homemade grinder

If desired, you can independently make a tape.type grinding machine. Grinder. But this process is laborious and traumatic, requiring the skills of working with wood, metal, an electrician, welded work skills will come in handy.

  • Find the necessary materials: metal scraps, springs, rollers, bearings, electric motor and wires.
  • Make a strong basis for attaching the device.
  • Install a countertop suitable in size.
  • Install parallel racks with an electric motor and a drum with a grinding tape tensioner.
  • Collect and attach drums and electric motor.
  • Set a grinding tape.

Which grinder is better than eccentric or vibrational

Perhaps there is nothing more complicated than making a choice. Especially if you vaguely imagine for yourself that of the proposed for you, in fact, you need. Such a macar in most cases came out with grinding machines.

Most of these tools include only an angular grinder. Not completely justified. Specifically angular grinder, or corner grinding machine, first appeared on the market, immediately gaining popularity due to its own functionality.

But now in the market with a corner grinding machine, flat.grinding, eccentric, ribbon machines many of their subspecies are successfully adjacent. At the same time, a universal tool is unacceptable. Any of the cars is good in this case.

How to choose a more suitable? What questions you need to ask for yourself not to the merchant what to pay attention to the purchase?

We will try to figure it out everywhere and all this.

What is necessary, the 1st question, addressed first for myself: what model I need, the profiles as it is called everyday life? The generally accepted rule applies to him for nothing for all power tools: the main difference between a professional tool and an amateur (domestic) is his rich motorsurs of a no longer time of continuous work. It is customary to attribute those created for multi.sized operation in a saturated operating mode to the professional class of tools. The requirements for such machines are higher, respectively, the material from which the parts are made is stronger, and the design of the power tool involves its resistance to huge loads.If you intend to work from an option to an occasion, there is absolutely no need to spend money on a professional tool. With 20 hours of work within a month, household models will simply be managed. Already now, their weight is not sizes, you are less than the tools for professionals, which means to use them more conveniently.The indisputable plus of an amateur tool is its low cost.

Question 2: Why am I getting a grinder? Here without the help of the seller, you can not do. He should not explain the subsequent:

Following the mechanism of operation, grinding machines are divided into flat.grinding, eccentric, tape non.angular tape. In cars belonging to the listed groups, various accounting systems of grinding, with the use of which they are better controlled later, then they are also called another type of work. We will explain their features in more detail.

Planning grinding machines

Let’s start, perhaps, with the largest group. Planning grinding, as vibrational machines also call it, are called so because of a flat sole that makes reciprocating movements with a malehan amplitude, but at a very high speed.

These devices are provided for the final surface processing before painting or varnishing, removing the influx of paint or varnish before re.painting not t.D. Using them polish wood, stone, plastic, composite materials, metal.

Such devices are divided into grinding machines with a rectangular processing surface not delta grinders. The latter are distinguished by a small size of the sole that is not brought forward, in shape resembling the base of the iron. Delt.grinding machines are simply controlled with the processing of inaccessible places of not small details (furniture, window frames, cavities are not corners, chamfers are not t. D.).

Choosing a vibrational grinding machine for ourselves, we advise you to control the amplitude of the sole. This is one of the important features of this type of tool.

The simply amplitude, the more freaks the surface processing is not the more rude to the oil will be.

If the machine has a natural function of adjusting the frequency of oscillations, then various modes are set for processing those in other words of other materials.

We advise you to choose a model equipped with an integrated vacuum cleaner. You should see such a fundamental detail, no matter what kind of grinder you prefer. There is that the dust formed during grinding is harmful to health, not counting the quality of the grinding when dusting away will significantly increase, and the wear of the grinding sheets of not the machine itself is planned slower.

For abrasive material on flat.grinding machines, a skin on the woven is used as it is also called a non.woven base. Fastening the abrasive on the sole of the machine is depending on its type. In machines with a rectangular processing surface, it is produced using clamps that fix the ends of the skin, or using Velcro.

flat, grinding, eccentric, which

Only Velcro is used for deltas.grinding tools. All types of fastening. their virtues are not shortcomings. So, cars with clamping fastening are cheaper (it is easier to choose consumables for the current situation), but the mounting with Velcro is more convenient.

When, such a delightful thing as a grinding sole brake, limits acceleration during idle work, expands the machine resource does not exclude uneven grinding at the edges.

Comparative analysis of grinders

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

This video describes in detail what grinder is, the principle of work of each type is considered

Eccentric grinding machines

While introducing you to the principle of their work, you should mention this occasionally used form of grinding machines as orbital. In orbital grinder, the round processing surface revolves around its axis. But this is not perfect enough.

The round working surface of eccentric machines, in addition to rotational machines, makes oscillatory movements, combining the orbital non.rotational types of movement.

Such a difficult trajectory of movement allows you to create a more uniform grinding of the processed curved-conapulla surface with uniformly using an abrasive. Speaking differently, the field of activity of eccentric grinders is very exterminated.

They are well controlled with various curved surfaces are not good for cleaning, polishing, polishing wooden products, metal, plastic, and additionally for a particularly narrow grinding.

Vibration or eccentric grinding machine

Eccentric grinding machine: choice, repair, reviews

Vibration or eccentric grinding machine is created for processing wooden, in addition of iron objects. With its help, you can easily remove varnish or paint from the surface. Additionally, it is possible to process plastic parts.

Sometimes grinding machines are used to clean up sharp corners. In this situation, almost everything is depending on the design features of the model.

For example, we are talking about working soles. You will like it stiff or soft. In thickness, the working surfaces also differ.

If we consider the main characteristics, then the maximum power and frequency of rotation are distinguished.

How to repair

Repair of an eccentric grinding machine should be carried out in a workshop where our client has the necessary tools. A vulnerable place of this device is a rotor.

It can come out of the system for various reasons. In this case, a person should find out initially. If you set a goal to disassemble a grinding machine, you need to disconnect the working sole.

For this purpose, you need to use a cross.shaped screwdriver.

The working sole on a special sleeve is attached, and for the possibility of moving it to the side, you will need to make a lot of physical efforts. After which the sole can be removed by taking it with your hands on the sides. Then fundamentally remove the device electric motor.

Rotor in grinding machines, usually placed at the top. First of all, its winding is examined for integrity. Next, you need to check his contacts. Sometimes the inconsistent can be broken down.

You can solve this problem quite simply, just by buying a similar detail.

Eccentric hamstring training in athletes

How to choose a grinding machine

The choice of eccentric grinding machine is based on assessing the characteristics of the device. The maximum power indicator should fluctuate around 3 kW. The whole spectrum will allow you to process even iron items at a good speed. The speed of rotation in this case should be at the mark of 5 thousand. rpm. The level of oscillations is welcome on the indicator 14 thousand. movements per minute.

With all this, the pressure of the noise created should be less than 80 dB. Additionally, you should pay attention to the thickness of the sole of the device. If it is planned to work only with wood, then it should be 3.

2 mm. At the same time, for the metal, the indicated parameter should be than two 4 mm. All as a result will ensure small wear of the working sole. There is an approximately high.quality eccentric grinding machine in the region of 6 thousand.

Makita trademark devices

The designated company usually creates grinding machines only for processing wooden surfaces. Models are used of course also by specialists. Of their features, it is necessary to say the highest power.

Additionally, they are able to be tied up by the highest level of oscillations. The vibration error is approximately 1.5 m/s. In most cases, handles are cut separately into the set.

The high.quality model of the grinding machine of the presented brand in the region of 7 thousand will cost.

Reviews about the Makita V5030 model

This eccentric grinding machine has excellent reviews. Some buyers choose this model due to the availability of a fairly dense canvas. When using it, even iron objects are processed. For example, it is possible to delete paint on iron surfaces. The maximum power of the designated grinding machine is equal to 3 kW.

Therefore, the highest speed of load is equal to 12 thousand. rpm. The pressure of the created noise is approximately 70 dB. The protective sleeve in this case the manufacturer provides for. Such a macar, breakdown of the model occurs quite occasionally. The disadvantage must be emphasized by a very small power cable. The presented grinding machine is worth in the region of 5500

Grinding machine Makita V5041

This model is completely suitable for stripping surfaces of various shapes. Probably buyers choose the device due to not bad characteristics.

In our example, the indicator of the maximum power is at the mark of 3 kW. The entire assortment became probable thanks to the installation of a high.quality single.phase motor. Its maximum frequency is 30 Hz.

The power of a grinding machine is carried out only through a network with a voltage on the verge of 230 V.

The length of the cable in our example is 3 meters. Also separately in a standard set, a user can find a spare working sole. Its thickness is equated with 2 mm. For metal processing, the indicated power tool is poorly suitable. This is all due to the purpose that the sole is done non.grained. This eccentric grinding machine in the store is about 5900

Bosch devices

Bosch is very popular today, and the creation of grinding machines has long been engaged in. Probably the owners immediately note the excellent quality of the details.

Working sole wear is very small. Electric motors, usually two.phase. They are capable of working from a network in your home with a voltage of 220 V.

At the same time, the parameter of the maximum frequency will hold at the mark of 30 Hz.

If you have a conversation about design features, then the forms of handles deserve attention. They are made very excellently and hold comfortably in their hand. Such a macar, the user is able to clean the surface for a long time.

It is also necessary to note a huge area of ​​working sole in certain models. The grainness of the canvas depends in this case on a certain modification. There will be an approximately eccentric grinding machine of the designated brand in the region of 6 thousand.

Than an interesting Bosch 220A model

If you believe the reviews of the hosts, then this model is able to process very small details. The maximum power of the device is located around 3 kW. Because of this, the productivity of the presented power tool is not bad. But for experts it is not suitable. This is mainly due to a small width of the working surface.

How to choose a grinder for wood

The farm often has to grind something, clean the old paintwork. Most of the work with wood. Few of the manufacturers sell perfect products. Unless the carpenter. And if there are perfectly processed boards, then their price is such that you will involuntarily want to polish them yourself. Even taking into account the fact that the work is tedious and uninteresting. Therefore, wood grinding machine is one of the tools that should be in the home arsenal.

There are different types of grinding machines that perform one type of work, but with different results. There is a tool for rough (preliminary), medium (intermediate) and thin (finish) grinding. Part of the tool can even perform polishing.

A tree for grinding wood can be of different pitchfork, size, performance

To choose a grinding machine for wood, first of all, you need to decide for what type of work you need it. For rough grinding. aligning of irregularities, height changes. one type is suitable for finishing grinding. bringing to ideal. another type. over, both problems can be solved using equipment of different types.

Corner grinder. corner grinding machine

The well.known corner grinder can also be used to polish wood. She copes well with the function of rough grinding. Of all the possible tools, this is the most productive. If it is necessary to quickly align the large wooden surfaces. grinding floor, walls, log house. this is work for angular grinder. Minus. the surface is very uneven, you have to align all pits and humps for a long time. If this is still “passing” on the log house, then for any carpentry, the result is unsatisfactory. If only there is an opportunity to purchase another tool, use a corner grinder for grinding wood.

For wood, red emery circles are used. this is a special abrasive

For corner grinders there are special nozzles for grinding wood. The best option is petal or plate circles with sandpaper of different granularity. When installing them, the working plane is below the protective casing, you can work safely, you can move in any direction. It is necessary to carefully process places with protruding hats of nails and screws. We lower the tool on top, carefully move. A grinding circle is easily torn easily, so be careful.

Changing the granularity of the grinding circles used, you can carry out coarse and medium (intermediate) grinding. The work will take less time than if any other wood grinding machine is used. But it may take more time to bring to a flat surface, since, with a lack of experience, there will be more flaws.

When grinding wood, sandpaper is clogged, the speed of operation is reduced. In addition to reducing speed, there is another sign. the smell of burning wood. It is not necessary to change the disk right away, you can restore its performance. To do this, for several seconds, grind the metal. All adhering. resin, wood fibers, dust. burns out, the surface is cleaned, the processing speed increases again. This Focus, by the way, can be used with other grinder.

Such a nozzle is used if you need to quickly change sandpaper

If you have to clean and change circles often, a bar with Velcro is installed on the corner grinder. Replacing the sandpaper is much simpler and faster. weeded/stuck. a second business. But working with a nozzle is more dangerous. Due to its height, the grinding area is above the level of the protective casing, it does not perform its functions. During the start, it happens, it flew off an unreliable record or even the nozzle itself. They have small weight, there are no injuries serious, but this is still injuries. The angular grinder with a smooth start helps to reduce risks, but, still, it is necessary to work in gloves, protective clothes with tightly fastened sleeves, in boots that cover legs, goggles.

Ribbon grinding machine

It is called that due to the fact that sandpaper has the shape of a tape that is continuously moving with rollers. Therefore, such a grinding machine for wood is also called “endless”.

The tape grinder for wood is designed for black and intermediate leveling of the surface. By installing sandpaper with smaller grain, you can achieve processing of medium cleanliness. This is enough for carpentry that do not go under painting. To bring to an ideal condition you need a grinding machine for a different type of wood. over, to eliminate long longitudinal scratches, it will have to be carried out with a stepped grinding, several times changing the granularity. the scratches remain deep.

The ribbon grinding machine is good, if you need to remove the old coating. paint lacquer

What is a good tape grinding machine for wood? It has good performance. The tape on it is installed in such a way that one side is sanded close to the wall. What are its shortcomings? Due to the design, not all points can be “getting”. For example, corners, shaped recesses, grooves and other small details. It is not always possible to “crawl” between two details (when processing the railing, for example). Another drawback is that most of the strip grinder has a substantial mass, to work on weight, emphasizing vertical surfaces, is difficult. But on the horizontal plane. they are the most productive.

The following shortcomings are a high noise level, not the largest polishing spot. It makes noise so much that working without headphones is extremely uncomfortable. Why a small spot of grinding, because in appearance it is quite large? Even with a large width, the tape grinds only in the center-part in front and behind is not used due to the fact that it is raised to serve on rollers.

Technical selection criteria

Any tool is divided into classes that differ in a working resource (and price). And a grinding machine for wood can be household or professional. Household are designed for short continuous work with interruptions. Basically, they recommend working no more than 3 hours a day, periodically taking breaks of 15 minutes.

Professional models are designed to work for 8-12 hours, breaks are rarely needed or not needed at all. The working resource of such a tool is many times more. For this, strong and reliable (read. expensive) materials are used. In addition, the performance of such equipment is much higher, as a rule, there is a greater number of adjustments.

To choose a machine for grinding wood, you need to pay attention to the technical parameters

When choosing, the first thing you have to decide is what kind of class your car should be. I must say that some manufacturers and household class are not bad, and some also have semi.professional rulers. This is an intermediate class, as a rule, for private use, it is optimal in combination of price/quality. Even professionals use some models.

General choice parameters

Although the grinds of wood are different, there are general points that you need to pay attention to when choosing. Here they are:

  • Power consumption. This is an indirect performance indicator. The smallest wood.grinding machine has power. 120 watts, the most powerful. about 1.2 kW. But the power also depends on the type, so the stripes are usually more powerful, because it requires a greater force to stretch the tape, as well as energy is spent on the operation of the compressor that removes dust from the working area. So the power of a grinding machine should be compared in the same type of models, but not in different.
  • The length of the cord. Everything is simple here. The longer the cord, the more mobile the tool.
  • The presence of rubber linings on the handles. They contribute to a more convenient capture of equipment. The handles should “falls” well in the hand.

These are the common points that you need to pay attention to. Now about what is important for grinding machines of different types.

Ribbon

When choosing a strip grinding, you need to look at the following parameters:

    Long and width of the tape. Tape width. from 6 mm to 100 mm. You can process small parts with a narrow canvas, wide increases performance. The length of the tape depends on the model. It is clear, the longer the tape, the longer it works without replacement. When buying a second ribbon.type grinder, try to find a model with the same length. less consumables will be required.

You still need to pay attention to how convenient it is to change the tape. There are also models that allow you to quickly change the brushes. Sometimes spare brushes even come in the kit.

Popular models of tape grinding machines

The manufacturer of the size of the tape (width/length) is the speed of the tape

Eccentric (orbital)

In addition to all the described general parameters, the choice of an eccentric machine for grinding wood has its own nuances:

  • The value of the eccentricity. That is, the amplitude of deviations during circular motion. It happens from 2 mm to 8 mm. The larger this figure, the higher the processing speed, but below its “cleanliness”.
  • The diameter of the sole. It is 90 mm, 100 mm, 125 mm and 150 mm. Professionals prefer to work with a diameter of the sole of 150 mm. They have the highest performance and for this size there is a large selection of sandpaper of different grainness, no problems with spare parts.

The selected model still needs to be tested in the store. To do this, install a disk of sandpaper on the platform and turn on the tool. Vibration should not be felt at all. This means that it is well balanced and it will be convenient to work.

Popular models of eccentric grinding machines

Manufacturer model capacity of rotation of the discrete of oscillation platforms Platform discore (eccentrite) price

Vibrational

First of all, you need to choose the shape of the sole. It is rectangular (most often), square or iron. The sandpaper mounting system here is pressed, just a piece of sandpaper is pulled by the desired size and is fixed with clamps. For the normal operation of dusting in stretched paper in the right places (holes in the platform), you need to make holes. It is best to connect a vacuum cleaner for dust removal, since the presence of dust under the platform leads to a large number of scratches. That is, instead of grinding, we get a spoiled part. This is an important point.

How to choose a grinding machine

If you need to achieve the most even and smooth plane, you can not do without a grinder. With its help, the work, if it does not become itself, then, in any case, it will require much less time and effort. One thing remains. to understand how to choose a grinder from a great variety.

The basic principle is this: the design determines the scope of application. Consider different types of grinder, starting with the most popular. We hope that this review will help you understand which grinding machine is better for your tasks.

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.

Examples of models for specific tasks

Choosing SHM, it is necessary to accurately decide on the tasks that are to be completed. As an example, you can disassemble a specific situation: a grinder for a car. which is better.

For the repair and grinding of a car

For initial processing, you can select the STURM BS8511U unit. It is ideal for the initial cleaning of metal surfaces, and tearing the paintwork. This is a very useful unit if you need to repaint certain parts of the car, before this cleaning the surface.

Unfortunately, the unit is not suitable for finishing polishing. And therefore, for further auto repair, you can use a special SCN machine 1200/180 00000020585, designed for polishing.

The information provided is enough to understand what grinder are, and independently choose an unit for home, cottage or professional needs.

Choose a grinder

To make a choice, you need to clearly understand the purpose of each type of grinding machine. At first glance, the principle of operation of grinding machines is the same. grinding the surface of the material using abrasive equipment.

In each specific task, one type of grinder will prove itself brilliantly, and the other will not give the expected result. For example, eccentric machines are not available for the treatment of internal corners, and vibrational grinders are within the power of this.

We will analyze the types of grinding machines and determine the scope of each of them.

General features

  • Most of modern grinder is equipped with a dust system: a construction vacuum cleaner is connected through a special pipe or there is a bag for collecting dust. This makes the process of work cleaner, the tool itself is controlled better, and the consumption of abrasive equipment is reduced.
  • By type of power, machines are divided into network and battery. The advantages and disadvantages of wireless grinders are obvious. mobility and independence from the mains, but the operating time is limited by the battery charge.

Eccentric grinding machines (orbital)

Eccentric slices are considered the most effective and universal tool for polishing and grinding surfaces. In industrial production and in private use, they show the best result in the quality of surface processing.

Polishing and grinding are possible thanks to the combination of rotational and eccentric movements of the sole. The sole rotates in orbit and at the same time scrolls around its axis. Such a complex movement of an abrasive allows you to effortlessly grind with a minimum number of disadvantages.

flat, grinding, eccentric, which

A machine weighing from 1 to 3 kg, equipped with a round sole with Velcro, to which an abrasive circle is attached on a felt basis. Soles are two sizes. diameter: 125 and 150 mm.

125 mm soles are easier, designed for a smaller area and for more delicate work than grinder with a sole of 150 mm. Electric motors consume from 200 to 900 watts. greater power provides greater performance.

When installing equipment, it is important that the holes on the sole of the grinder coincide with the holes of the abrasive circle, otherwise the process of dusting will be difficult.

They are used for rough or delicate grinding on large surfaces, for interlayer processing of materials and coatings, for polishing, processing large surfaces along and across the fibers. Often, machines of this type are used in carpentry and machine gunners.

With the help of Ashm, volumetric, profile and curved surfaces are processed. Working with an eccentric grinder, it is unlikely to spoil the workpiece: make grouts, burn the material or overdo it with a depth of grinding.

The level of noise and vibration is less than other types of grinding machines.

The disadvantages are obvious: eccentric machines are not suitable for processing internal corners and recesses. Small performance in comparison with tape grinder.

Planning grinding grinders (vibrational)

These cars have a mass of 1 to 3 kg, equipped with a rectangular sole with a clamping mechanism along the edges, which fixes grinding paper. There are models with the ability to fix the equipment to the sole with Velcro.

The sole makes reciprocating movements in the ring orbit, due to this, grinding or polishing is carried out. The power of the electric motor of this tool is from 150 to 600 watts. There are two types of soles: standard. 100 x 200 mm, and miniature options with a base of about 100 x 100 mm.

It is simple to make a choice here: mini.grinding machines are suitable for narrow places, they are easier and more maneuverable standard.

Designed for delicate processing of large flat surfaces. Occupy an intermediate place in the purity of processing parts between the strip and eccentric. With the help of a flat.grinding machine, the finish grinding of different surfaces is carried out: wood, plastic, stone.

Advantages: the ability to grinding and polishing internal angles, the availability of consumables and the moderate cost of the grinder itself.

Disadvantages: high noise relative to orbital.

Deltavoid vibration grinders

The peculiarity of this tool is a compact light case. the mass of the tool up to 1 kg; Delterine grinding sole, due to which these machines are called “iron”. Electric motor power up to 300 watts.

Grinding in hard.to.reach places is carried out due to the fact that the triangular sole makes quick fluctuations with a small amplitude.

Equipment (grinders) for this tool is not sold everywhere and it costs more expensive sketches on a paper basis or grinding circles.

With the help of deltavoid grinder, thin grinding of protrusions, deaf angles, edges, profiles, cleaning the adhesive, processing of objects with small details and complex surfaces are performed.

Deltavoid vibration grinds. especially good in carpentry, manufacturing furniture, stairs, in automobile bodywork, is used both the main tool and in addition to eccentric or vibration grinds.

Ribbon grinder

In tape grinder, the equipment, an abrasive tape glued in the form of an endless ring, moves in one direction along two end rollers, one leading one, the second rotates freely.

Linear grinding and high abrasive speeds provide high performance, but at the same time requires increased control over the grinding process.

Weigh lnm up to 7 kg, and the power of the electric motor varies from 500 to 1500 watts.

Three main standards of tape grinder are distinguished by the length of the grinding tape: 457 mm, 533 mm, 610 mm.

Ribbon grinding machines are suitable for rough grinding of surfaces made of wood, metal, plastic, mineral building materials. Often used when removing old paint or varnish, alignment of putty.

Due to high performance, a large amount of material is quickly removed, and in combination with large grain abrasive, the strip grinder can perform the function. The quality of grinding is not the best indicator of this tool, often when processing, shells and scratches appear.

Tools. select a vibration grinder

Vibration grinding machines are designed to mechanize one of the most monotonous and painstaking work. grinding flat surfaces. For hours to “shorten” the grinding bar, achieving the ideal surface, or get the same result in a few minutes of work of the grinder? The answer is obvious.

It is not surprising that the grinder won folk love and received a worthy place on the shelf of every master. Today, a large number of different vibration grinders are presented on the market. Before its acquisition, you should understand the main differences of these machines and hiding behind these differences in the possibilities.

It should be noted that vibration grinds occupy a certain area of ​​application between tape and eccentric grinders. Vibro-grinding, as the name implies, acts due to vibration, more precisely, the reciprocating movements of the sole with a sheet of abrasive material mounted on it.

This is their difference from eccentric machines, where the sole moves along a complex rotational trajectory. The device of vibration grinds is simpler, so they are, on average, cheaper than eccentric, but the likelihood of traces (scratches) on the surface processed is higher, therefore, for finishing, polishing they are worse.

In comparison with ribbon, vibration grinds win in the purity of the resulting surface, but lose in performance.

In this comparison, you can also mention corner grinders (in productivity are close to strip, but to achieve a flat surface without round traces from a grinder is a difficult task even for an experienced master) and renovators with a grinding nozzle (they may well replace a small vibration grinding with a deltoid sole).

As can be seen from the picture, the vibration grinder. the tool is quite universal. But the wider the range of the capabilities of the tool, the more it is more expensive. At the same time, a universal tool always loses to highly specialized, and its price can be many times more expensive. Therefore, before choosing a grinder, you should clearly understand what it will be used for. and not expect it from it.

Why can a vibration grinder be used specifically?

  • for grinding wood, metal, plaster and putty;
  • removal of old paint, paintwork, rust;
  • processing of parts made of plastic, stone, gypsum;

You can also mention quite exotic applications like felting felt and preparation of solutions (in vessels attached to vibrating soles).

Based on the listed possibilities, Vibration grinder is widely used in woodworking, repairing and manufacturing furniture, repair and decoration of premises, bodywork when repairing cars.

Characteristics of vibration grinder

The sole of the vibration grinder is driven by the engine. Engine power consumption (as for most power tools) is one of the most important parameters.

But for vibration grinder, this parameter is greatly associated with the following parameter. the amplitude of the oscillations. The larger the amplitude, the faster (but at the same time. rude) the surface occurs.

In each specific tool, the engine power is selected optimal for the amplitude used-from 120-250W for an amplitude of oscillations of 1mm to 400-600W for 5mm.

Therefore, it would be more correct to choose an amplitude, and only then, from the determined range, to choose power based on how large volumes and what surfaces will be processed. Remember. the harder the polished material, the greater power will be required to grind it.

At the same time, you should carefully opt for the tool with minimal power. Even if it is not planned to process anything stronger than soft varieties of wood, the power supply will not be superfluous. any electric motor will last much longer if it is not used at the limit of power.

Another important parameter is the number of fluctuations in the sole per minute, in other words, the speed of its movement.

Different speeds are required to process various materials: so, plastics and lacquered surfaces should be treated at minimum speed. so that the temperature increasing with friction does not spoil the surface.

At medium speed, it is recommended to process soft metals, for example, aluminum. On high. hard wood and metals.

What to do if the machine is purchased not to process one specific material? In this case, the presence of a speed control is necessary. it will give the instrument the required versatility.

flat, grinding, eccentric, which

The parameters associated with the size and shape of the sole affect which details can be processed by vibration grinding.

The larger the size of the sole, the easier it will be to process large surfaces.

But, at the same time, a machine with a larger area of ​​the sole, to maintain performance, should also have a greater engine power; And, ultimately, a greater price.

When choosing from two cars with the same power and different area of ​​the sole, it should be borne in mind that the performance of a machine with a larger sole will be noticeably smaller. However, some models have interchangeable soles.

The shape of the sole can be rectangular, closer to square or deltoid. It is believed that the rectangular shape of the sole is preferable to the square due to universality: moving the machine forward by the wide side of the sole, you can achieve a better effect on large surfaces, and the narrow side allows you to penetrate the grooves and angles, where you can’t climb a wide side.

Deltoid shape of the sole allows you to process parts of complex shape, with internal angles and grooves. Minus of deltoid sole. to such soles, the mounting of a grindle is possible only on Velcro.

The grinder mount on different models can be performed using T.n. Velcro or with clamps. The main difference between these methods is in the price of grinders.

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In the clamps, as a rule, any grinding paper can be fixed. both on fabric and paper.based. Velcro requires slices on a special fabric basis, the price of which, as it is easy to guess, is much higher.

Eccentric grinding machines (orbital)

Eccentric slices are considered the most effective and universal tool for polishing and grinding surfaces. In industrial production and in private use, they show the best result in the quality of surface processing.

Polishing and grinding are possible thanks to the combination of rotational and eccentric movements of the sole. The sole rotates in orbit and at the same time scrolls around its axis. Such a complex movement of an abrasive allows you to effortlessly grind with a minimum number of disadvantages.

A machine weighing from 1 to 3 kg, equipped with a round sole with Velcro, to which an abrasive circle is attached on a felt basis. Soles are two sizes. diameter: 125 and 150 mm. 125 mm soles are easier, designed for a smaller area and for more delicate work than grinder with a sole of 150 mm. Electric motors consume from 200 to 900 watts. greater power provides greater performance. When installing equipment, it is important that the holes on the sole of the grinder coincide with the holes of the abrasive circle, otherwise the process of dusting will be difficult.

They are used for rough or delicate grinding on large surfaces, for interlayer processing of materials and coatings, for polishing, processing large surfaces along and across the fibers. Often, machines of this type are used in carpentry and machine gunners. With the help of Ashm, volumetric, profile and curved surfaces are processed. Working with an eccentric grinder, it is unlikely to spoil the workpiece: make grouts, burn the material or overdo it with a depth of grinding. The level of noise and vibration is less than other types of grinding machines.

The disadvantages are obvious: eccentric machines are not suitable for processing internal corners and recesses. Small performance in comparison with tape grinder.

Planning grinding grinders (vibrational)

These cars have a mass of 1 to 3 kg, equipped with a rectangular sole with a clamping mechanism along the edges, which fixes grinding paper. There are models with the ability to fix the equipment to the sole with Velcro.

The sole makes reciprocating movements in the ring orbit, due to this, grinding or polishing is carried out. The power of the electric motor of this tool is from 150 to 600 watts. There are two types of soles: standard. 100 x 200 mm, and miniature options with a base of about 100 x 100 mm.

It is simple to make a choice here: mini.grinding machines are suitable for narrow places, they are easier and more maneuverable standard.

Designed for delicate processing of large flat surfaces. Occupy an intermediate place in the purity of processing parts between the strip and eccentric. With the help of a flat.grinding machine, the finish grinding of different surfaces is carried out: wood, plastic, stone.

Advantages: the ability to grinding and polishing internal angles, the availability of consumables and the moderate cost of the grinder itself.

Disadvantages: high noise relative to orbital.

Brush

Such a device instead of a disk (like on ordinary grinder) has a roller covered with metal bristles. On top the roller is closed by a steel casing that protects the eyes of the operator from the hit of the metal and other dust. Also note that the additional handle has not a straight, but a curved shape for the convenience of using the device. Otherwise, this is an ordinary corner grinder.

Brush grinder are used to remove the paintwork and rust. For example, due to the fact that the roller of this device has a continuous bristle, the device copes better with cleaning the paint from the old iron gate than the same drill with a br. By the way, you can use rollers not only with metal wire, but also abrasive spraying. Rollers with an abrasive are convenient when working with wood.

In conclusion, I would like to say that all the grinding machines, except for the corner grinder, have a rather narrow specialization and are rarely applicable for ordinary homework. Therefore, they should be taken only if you have a home workshop or you periodically earn construction. Here is a rating of popularity of models of different types: we analyzed the number of grinding machines presented on the sale of a percentage (compiled on the basis of statistical data Yandex Market and E-Catalog):

  • Corner grinder. 62.5 %
  • Eccentric and vibration grinding. 18.2 %
  • Tape. 6.3 %
  • Lines. 5.3 %
  • Polishing. 4.7 %
  • Deltas.grinding. 1.4 %
  • Wall grinding. 1 %
  • Brushing. 0.6 %

As you can see, multifunctional corner grinders are more popular than other grinders.

General criteria for choosing a grinding machine

When purchasing a grinding machine, pay attention to:

Power. the most important characteristic of the tool. The greater the power, the higher the performance. But powerful cars are not akonally consuming electricity. In addition, they are quite heavy. If a machine is needed for household purposes, then there will be enough tool with a capacity of 600 watts. If, with the help of such a technique, it is necessary to solve the problem of processing metal, concrete or combined complex surfaces, then it is better to stop the choice on the model, the power of which is about 3,000 watts.

Rotation speed. manufacturers indicate this parameter when the machine is idling. The effectiveness of the tool with different metals also depends on the speed of rotation. For processing solid materials, high engine speeds are needed, but soft materials are processed at low speeds. Keep in mind that for working with high speed grinding, the operator must have a certain skill and qualification. The fact is that at high speeds, the grinder increases the progressive movement, therefore it is necessary to move it on the surface, which is processed, you need to quickly.

Equipment parameters. the depth of the cut depends on them, as well as the area covered in the surface processing. Grinders can be equipped with abrasive disks of the following sizes: small, the diameter of which does not exceed 150 mm, medium. from 150 to 200 mm, large. from 250 and above.

Mass is a fairly important indicator on which the convenience of work largely depends. There are light grinders weighing about 2-3 kg. But there are heavy units whose weight reaches 6 kg. Correctly evaluate your strength, choosing a tool for yourself. If it is powerful, but too heavy, it will hardly allow you to work with comfort.

The presence of a function of a smooth start. this option makes it possible to control the parameters of the electric motor, to keep their value in the safe range. Smooth start allows grinding more carefully.

Cord length. choose a model with which it is maximum. In this case, you will not have to use an extension cord.

In addition, the tool should be able to adjust the speed if you want to achieve maximum efficiency of its use. For comfortable and safe work with a grinder, the selected model should have a protective function, which include: blocking button, protection of the device from overheating, blocking the equipment of equipment, protection against vibration. For comfortable work, it is desirable that there are rubber linings on the handles of the grinder. With them, the instrument will not slip out of the hands.

Electric tool care advice

In order for grinding machines to serve for a long time, you need not only to be able to deftly manage them, but also to provide the necessary care. In addition, do not allow overloads, operate grinder in normal mode. If the manufacturer of the tool indicated the term of continuous operation, then it should not exceed it. Timely give a rest technique. When working corner grinding, do not neglect the protective casing. He not only provides a person with safety in the process of work, but also protects the electric motor from entering him and the bearing of dust and particles of metal.

In the course of working with the tool, do not use consumables that do not correspond to a particular model. After completing the work, wipe the surface of the grinder with a clean cloth to remove the pollution and traces of lubrication. If you wrap the grinder cord on the instrument, then you do not need to pull it too much, otherwise it will turn off after some time.

It is also necessary to conduct preventive maintenance of the tool. The frequency of its conduct depends on how often you work with a grinding machine. If it is used for domestic purposes and from case to case, then there is enough maintenance of maintenance once or two a year. But if you work with the tool intensively, at a professional level, then you need to ensure that it is always in working condition. To do this, you need to control the wear of the details and their timely replacement. In this case, prevention should be carried out once every 3 months, or even more often. During preventive maintenance, it is necessary to perform a thorough cleaning of the tool both outside and inside. It is recommended to wash the grinder with special compounds, check the moving parts for the degree of wear. It is also necessary to tighten all nuts, screws and bolts. If the technique needs lubrication, it is necessary to carry out it in a timely manner, as well as replace the faulty details or have served their nodes with new ones.