Saw blades for wood for grinders. Disc for grinder on wood: general characteristics and types. Cutting circle. Grinding and roughing work Universal disc for angle grinder

The angle grinder (angle grinder), popularly known as the "grinder", is a professional universal device that is used for a variety of purposes. With it, you can carry out a lot of work: cutting, grinding, polishing, saw cut and processing of various raw materials. When choosing a suitable model, you must understand its design features, evaluate your financial capabilities, as well as consult with a specialist.

Due to the wide variety of existing models, the choice ideal solution could be a real disaster. In any case, the emphasis should be placed on the purpose of the proposed equipment. Wooden structures need the appropriate grinding wheels for a wood grinder. The same applies to metal - it is processed only with suitable tools.

Varieties of grinding discs

Currently on sale big variety disks on a grinder, and it happens to a simple layman quite difficult to choose grinding wheel for grinders on wood. To understand in more detail existing types, it is necessary to divide the assortment into the following categories:

1. Abrasive wheels. Such a consumable is particularly versatile, so it allows you to carry out accurate and high-quality events with minimal resource consumption. In addition, there is the possibility of additional polishing. Due to these characteristics, abrasive-type tools are one of the best.
2. Circles with diamond-coated- are very popular. Segmented and solid type models are available on the market. Depending on this option, the scope may differ. Both solutions are able to provide accurate cutting of any materials with the highest density. Among them: stone, metal and concrete products.

The blades for the grinder may resemble most modern saws, but they are made of other alloys. Initially, such goods were considered rare, but now they have spread very widely. Perfect option- combination of carbide and tungsten.

Woodworking discs

If you intend to purchase saw blade on wood for bolarka, be sure to study the basic principle of operation of such a device. What features should be considered when purchasing a disk for angle grinder on wood?

The first thing you should pay attention to is the different standard diameters. Most compact solution has a size of 115 millimeters. However, many experts prefer to buy a wood disc for a 125 mm grinder, which is explained by great practicality. In addition, it is angle grinders on the 125th circles that are in special demand not only among representatives of professional fields, but also among home craftsmen.

It is no secret that a material such as natural wood is a specific heterogeneous raw material, so for its processing it is necessary to use different circles. Use classic models for metal or concrete structures Absolutely forbidden. If this is not taken into account, the tool will simply fail or burn out.

When choosing suitable products for grinding, pay attention to the diameter of the installed shaft. Standard value equals 22.2 millimeters. Initially, there were several divisions, so the marking value remains quite large. At present, most standard models have a diameter of 125x22.2mm.

And although the allowable size of the angle grinder is 230 millimeters, it is not advisable to give preference to such sizes for wood processing. When working with large products, you expose yourself to the risk of dangerous damage and injury. Ideal dimensions represented by the range 115x22.2 - 125x22.2 mm. Yes, and circles of class 125 are the most versatile, so they can be used to solve a wide range of production operations.

After careful study of the specifics grinding discs for a grinder on wood, you can proceed to the search suitable models, which will ensure the safest and most efficient processing of such a valuable material as natural wood.

Types of cutting wheels

When buying a cutting disc, take responsibility for choosing the “right” model and pay attention to a number of design indicators. Among them:

1. circle diameter.
2. depth of cut in wood.
3. features of the teeth (shape, number, frequency).

If you want to use a cutting disc, consider the following recommendations:

In order not to make a mistake with the choice suitable solution, pay attention to the following selection features sawing consumable tools.

1. It is necessary to choose rounded cutouts that are made strictly towards the shaft.
2. Optimal Thickness disk is 2 mm.
3. The depth of the cuts made sometimes reaches 20 millimeters.
4. The cutout may be empty, but in some cases it is filled with a composition of copper.

Necessary equipment

In many cases, working with materials involves carrying out polishing, grinding, as well as peeling procedures.

It's no secret that cutting wood is a very dangerous occupation, but even an inexperienced worker can do sanding an array. The main thing is that he has the required equipment at his disposal. Enough to deal with basic principles forthcoming work, and everything will be successful.

In most cases, peeling involves petal discs. After a thorough study of the specifics of the product, you can be sure of its functionality and effectiveness.

From the name you can understand what are the features and principle of operation consumable tool. His work zone may not have large quantity petals sandpaper. This structure may resemble fish scales. As for papers with a low roughness, they provide a soft polishing of elite woods.

The quality indicators and the degree of processing are determined by the grain size of the material, so polishing and grinding are performed taking into account the established requirements.

Despite the great popularity of petal models, you can use other expendable materials. For example, very good decision can become a sticky disk universal purpose. Most modern nozzles have the ability to quickly change Velcro. The cost of used sticky discs is much lower than the cost of whole flap discs, however low price characterizes a short service life. In any case, universal sticky models are effective both in processing and in grinding the most various materials which explains their great popularity.

Tool characteristics and work quality

Even if you have purchased the most expensive polishing and grinding equipment, this does not mean that the quality of work will be maximum. What is it connected with? It's very simple: for successful processing, you must use exclusively dried wood. Raw material is unsuitable for this kind of activities. If this feature is not taken into account, the result obtained may not be the most pleasant. When choosing a wood disc, make sure that the selected raw material matches established requirements and standards.

In some cases, it becomes necessary to carry out cleaning work to remove the old layer of paint, varnish or fungal formations. good polishing and grinding tools always work the best way, however, provided that the material is prepared taking into account the basic technological requirements. You must understand that polishing and grinding discs for angle grinders are not suitable for primary processing operations, so they must be equipped with additional roughing attachments.

When choosing the right nozzle, you will be able to feel their effectiveness in those cases where you need to carry out cleaning old surfaces which are covered with several layers of paint. This result is explained very simply: most nozzles are a kind of metal plate, on which there is a wire bristle, placed closer to the outer circumference in a radial or perpendicular manner to the disk.

Finishing actions are started in those cases when the workpiece takes on a preliminary shape. The end result can be determined by the types of nozzles that are used to solve the problem.

An angle grinder can also be used as a cutter, as well as grinding and polishing machines. The expansion of functionality is provided by the use of different types disks.

And so, if you are faced with the question: “how to successfully polish or sand a wood structure”, be prepared to take a responsible approach to studying the basic subtleties and recommendations. As for the tools that will be applied in the future, they include:

If you intend to choose the right equipment for the grinder, consider not only the diameter, but also many other markings. With the help of inscriptions, you can clarify the exact purpose of the tool and select the best option for your purposes.

Modern Bulgarian is one of the most convenient and useful devices. To improve the quality of its work, it is necessary to take care of additional nozzles and discs that will make the processing of wood, metal, or any other raw material accurate and complete.

Bulgarian, being a universal tool for home master or a professional, is used when performing a variety of operations for cutting materials, grinding, peeling various surfaces etc. Sooner or later, every owner of this tool asks the question: is it possible to work on wood with a grinder, and what nozzles are needed for this?

The only operations with wood that can be performed with an angle grinder (angle grinder) without fear are grinding and peeling, and then using special nozzles. Cutting wood of course will work, but it is strictly forbidden! The Internet is full of shocking photos showing what the use of an angle grinder as a tool leads to. cutting tool on wood.

The main arguments against use of angle grinders for sawing, the following.

1. This machine is not designed for sawing wood.
2. Since the wood has a viscous and soft structure, the saw blade can jam in it. As a result, the grinder is often pulls out of hand, and it flies in an unpredictable direction (in the leg, on the arms, in the stomach, etc.), causing deep wounds to a person or amputation of fingers. Even fatal cases have been documented.
3. When cutting wood, it happens very quickly saw blade heating which causes it to lose strength. At the slightest distortion or excessive pressure, it can fly apart. Since the spindle speed of the angle grinder is high, the fragments of the tool scatter at the speed of shrapnel and enter deeply under the skin of a person. The user is lucky if the fragments do not fly into the head or eyes.
4. Despite the risk of using saw blades with teeth, some angle grinder users ignore this fact and continue to install circular discs with large teeth or improved carbide tips. If, when cutting wood, a hard knot or the remainder of a nail gets into it, then the tooth or solder breaks off, clings to the next saw tooth and is thrown out at the speed of a bullet. The consequences can only be guessed at.
5. Ignoring all the warnings, angle grinder users install a circular saw of a larger diameter on the machine than the protective cover. This is the most dangerous option for using angle grinders.

Based on the foregoing, sawing a tree with an angle grinder is possible only at your own peril and risk, and then if this is a single or infrequent operation.

If you have to cut a tree constantly, then it is better to purchase a special machine for this purpose, or use a jigsaw. In extreme cases, the grinder can be used as a drive and make a circular out of it, fixing the apparatus rigidly on the frame.

What are the circles for cutting wood

Despite the danger of using angle grinders for cutting wood, tool manufacturers still produce saw blades for it.

Circular saws

The photo below shows "dangerous" saw blade for the grinder, although its diameter corresponds to the protective casing of the grinder with a maximum working tool of 180 mm. There are saws with soldering and a smaller diameter.

On the next photo you can see a less dangerous version of the circular saw. It provides protection against jamming, and it is implemented due to a small set of teeth in different directions.

Chain saws

A saw blade made using a chainsaw chain reduces the risk of injury when the tool jams. This nozzle is designed in such a way that the chain fixed on the inner disk (base) has non-fixed landing.

If the chain is jammed in the material being processed, the base continues to rotate, and the tool does not pull out of the hands.

These chain discs for the grinder have many modifications, and with their help you can cut branches in the garden, as well as use them for rough cutting of thin boards.

In addition to cutting chain disc can be used and how rough, for example, for removing the bark, as well as for cutting cups in log cabins and modeling.

Saws with few teeth

Also for the grinder, in order to increase the safety of working with wood, tool manufacturers produce cutting discs with a small number of teeth.

Small diameter discs can have 3 teeth, and large diameter discs can have 4, as shown in the following photo.

These discs for grinders remarkably cut wood both along the fibers and across. In addition, with the help of a saw blade, you can cut grooves, make various cuts and spikes in the workpiece. But when working with an angle grinder, one rule should be followed: you need to install a cutting disc of such a diameter on the grinder, for the use of which it is designed by the manufacturer, that is, do not exceed its dimensions. Circles of smaller diameter can be set.

Tungsten Carbide Discs

Tungsten carbide discs for angle grinders have appeared on the market not so long ago and have made a kind of revolution in the field of woodworking.

This versatile disc has no teeth. Instead of the latter, there are segments around the circumference of the nozzle. cutting disc similar in appearance to diamond circle for cutting concrete. With the help of a tungsten carbide wheel for an angle grinder, you can very easily cut wood of any hardness and viscosity. In addition, he is not afraid of nails, screws and other metal inclusions that may be in the workpiece on his way.

This is the safest wood saw blade for an angle grinder.

Its price on the Internet is about 700 rubles. But if you take into account possible consequences use of circular saws, this is a low price for safety.

Wood sanding attachments

For wood processing, in addition to cutting wheels, there are specially designed for installation on angle grinder nozzles, with which you can peel, grind, brush and mill wooden surfaces.

Peeling nozzles

If you need to remove a layer of paint or other coating from wooden surface, you can install a peeling nozzle on the grinder. Available for sale a large number of various nozzles for peeling works. They differ in shape, design, and in the types of work that can be performed with this tool.

The photo below shows disc nozzles. with spikes or chips with which you can easily remove upper layer wood, grind the end of the board, etc.

The next cutter, due to the fact that the spikes on it are located on a flat plane, allows leveling various wooden surfaces. For example, if 2 boards on the floor at the end connection are on different height. With this nozzle, the defect is easily eliminated, and the boards are joined in the same plane.

There are also peeling nozzles twisted wire. They can be made in the form of a metal cup with a wire inserted into it.

Or in the form of a disk with coils of wire clamped in its central part.

These brushes are used if you need to quickly peel off old paint from a wooden surface or rust and paint from metal.

The next photo shows a brush with a smaller diameter wire, and it is used for finer roughing work on wood and metal.

In addition to stripping, this cork brush is often used for brushing wood, that is, giving it the effect of aging. If this effect is to be applied on large surfaces, in professional field, then for brushing it is better to use special manual machines with wide brushes.

Sanding and polishing tips

For grinding various surfaces, including wood, there is a special nozzle for angle grinders on sale, consisting of a metal base, on which it is fixed with Velcro emery grinding wheel. The nozzle is screwed onto the grinder shaft and tightened with an open-end wrench.

Often it is equipped with an adapter for fixing it in a drill or drilling machine chuck.

The grinding wheel is not used for polishing surfaces. Instead, they are installed on the nozzle felt discs that are fastened with Velcro.

It is also often used for sanding wooden surfaces. petal emery wheel. It is called from so because it consists of many petals fixed on its plane, made of sandpaper. The grit size of the latter can be selected based on the requirements for the treated surface. For rough sanding, emery with a large grain is suitable, and for finishing - vice versa.

The better to grind a tree - with a grinder or a grinder - depends on what you are going to prepare the wooden surface for. If under application regular paint, you can use a grinding wheel. If for varnishing, then the grinding wheel installed on the grinder cannot be used, since it will give small radial scratches on the surface of the wood, which will clearly appear after applying the varnish. In this case, longitudinal grinding is used for grinding. belt grinder(the emery belt moves longitudinally) or vibrating, where the same emery wheels are used.

Safety measures when working with a wood grinder

If you still decide to use the grinder as a tool for cutting wood, then you should remember some safety measures that cannot be ignored.

1. Before installing the tool on the angle grinder, it must be disconnected from the power supply.
2. Under no circumstances do not remove the protective cover from the angle grinder. This is the only barrier between the circular saw and your skin. In some cases, it will be able to protect your face from flying tool fragments.
3. When working with a grinder on wood and not only the use of protective gloves is a must.
4. Do not use large and powerful angle grinders for sawing wood. If the saw jams, you will not be able to hold the tool in your hands.
5. Do not use saw blades with large teeth, as the likelihood of them catching on hard wood fibers increases significantly and, accordingly, the likelihood of pulling the tool out of hand increases.
6. LBM must have speed controller to be reduced to a minimum. If there is no regulator in the device, then it is better not to risk your health. In extreme cases, the regulator can be made by hand, and installed in an extension cord socket.
7. The grinder should be kept during sawing strictly at a right angle. From any slightest distortion, the circular saw can collapse.
8. In no case should you fix the start button of the device, because in an emergency you will not be able to stop the tool and minimize injuries.

corner Sander(angle grinder)

A wide range of power tools on the Russian market is designed to facilitate different types self made. If in the professional sphere the purchase of specialized equipment is simply necessary, then in everyday life it is not always rational to spend money on an expensive tool, which, after performing certain work, may not be useful at all. The most popular power tool is the angle grinder (angle grinder). The scope of its application is not limited to metal processing - grinding wood with a grinder is carried out using special nozzles.

For those who do not know "Is it possible to process wood with a grinder?" this article will be helpful. For grinding and polishing wooden products or large surfaces of the array, you will need to purchase the appropriate nozzle - a circle. For angle grinders of different sizes, nozzles are selected that are designed for a certain rotation speed. Special discs designed for wood processing must be carefully selected. The disc must match the dimensions of the tool; a special nut is used to secure it.

When working with angle grinders, it is necessary to strictly observe safety precautions and use only factory wheels that are suitable for a particular model of power tool.

Wood processing grinder

Coarse wood grinding discs for angle grinders

There are several varieties of circles that differ in shape, material of manufacture and purpose. As a rule, the wood blank must first be subjected to a rough surface treatment, after which it is subjected to fine or final detailing of the coating with abrasive segments.

For such work, a special attachment for a grinder for grinding wood is intended. The most requested are:

• Roughing circles. Such a grinding attachment for a grinder is best used to remove a layer old paint. Suitable for lacquered finish which cannot be removed manually. It can be a wooden floor painted several times or a window sill. The design of abrasive discs consists of a disc and metal bristles made of elastic wire. Nozzles are available with different location steel bristles. Depending on achievement desired effect the villi can be placed along the entire perimeter of the disc parallel to the instrument or perpendicular to the segment - as in a conventional brush.

• Cord brushes are a disk with a large abrasive coating designed to perform rough grinding and removal of irregularities on a wooden surface. With the help of this tool, the wood blank acquires its final shape. Productivity of works in comparison with the usual manual tool is much higher.

• End discs. Nozzles are used when you need to align the product from the end. Such processing requires oblique cuts and the edges of the workpiece. The execution technique is identical to the file, but the abrasive is more effective than hand tool. When working with a segment, it is important to have skills and then such a simple tool can completely replace moulder cutter in terms of edge processing.

With the help of a grinder for polishing wood, you can completely restore furniture covered with varnish and paint. After this stripping, the thickness wooden base practically does not decrease, but the newly painted furniture will look beautiful and impressive.

While doing grinding work grinder choice of tool is not so significant compared to the presence of well-dried wood and the absence of cracks on the surface.

Grinding wheels for gentle processing and their areas of application

To perform wood grinding with a grinder, nozzles of a universal design and with a special gentle coating are used. Such mechanical restoration intended for the production of certain works:

• The petal disc is used for grinding the array. The design of this segment corresponds to its name. His working surface equipped with a large number of trapezoidal sandpaper petals that overlap each other like fish scales (three-quarter overlap of the previous row). With this arrangement of the petals, the abrasion of the nozzle occurs much more slowly.

This is the most common type of attachment for a grinder for wood grinding, which performs a soft surface treatment, and the tool itself is less traumatic. To achieve the desired degree of processing and High Quality the disc is selected according to the grain size. The size of the abrasive determines how quickly and efficiently the irregularities on the wooden surface will be removed.

The polished coating at different stages of processing may remain a little rough or be perfectly even without the slightest flaws and hooks. The final result can be achieved with a consistent transition from abrasive discs with a coarse-grained fraction to segments for finer processing. Therefore, you will need several discs per grinder for grinding wood, which will change in stages.

For use petal nozzle certain skills are required, which means that training before performing responsible work will be simply necessary.

• Wheels for soft grinding. Universal nozzle on the grinder for grinding wood appeared on the market relatively recently and is distinguished by a special design and high functionality. Rough work is intended to perform removable disks with desired grain size, which are attached to the sticky base of the nozzle. In this regard, the abrasive tool received the appropriate name - sticky disc.

The main advantage of a wheel grinder for wood grinding is the quick change of a worn-out removable disc: the whole procedure takes place without removing the main nozzle, which is fixed with a nut. First you need to purchase a sticky attachment for grinding on a grinder, so that later, without any difficulties, you can replace the worn abrasive segment.

How to choose sanding attachments for an angle grinder

Circles should be selected according to the main parameters:

• outer diameter (with large sizes, the processing process is accelerated and the service life is increased);
• bore diameter (circle setting bigger size to a smaller one is possible with the help of a special adapter);
• thickness (the greater the thickness, the longer the segment will last);
• grain size (the fraction must correspond to the type of processing: a coarse abrasive for rough work, and a fine one for soft processing and creating a finish coating);
• type of segment (suitable for special nozzles for processing wooden surfaces).

Reference! The diameter of the shaft in modern angle grinders for wood is 22.2 mm.

What you need to know when working with a grinder

Update floor covering(parquet), furniture or facade of the house, where there are wooden structures or individual elements, is performed using a grinder for grinding, which is equipped with different nozzles. Therefore, it is not surprising that angle grinders for wood polishing are in demand among professionals and in everyday life. But in order to choose the right tool for the job, you need to carefully examine the wooden surface for the presence of fungus, cracks and bumps. A video is provided to help beginners who want to know "How to properly grind a tree with a grinder".

For each angle grinder model in without fail should be chosen grinding head, only in this case will the safe performance of work be guaranteed and high-quality processing surfaces. Before you start working with a grinder (wood sanding), you need to make sure that the disk is properly fixed. Move corner car on the surface it is necessary to smoothly and not allow vibration of the tool.

When working with an angle grinder for grinding wood, it is unacceptable to use discs of small thickness (high rotation speed and load lead to a break in the circle, which is fraught with injuries).

The cost of circles for woodworking

The price of a tool for polishing a wooden surface is not high, but depends on the material, diameter and thickness. The table shows average cost abrasive tool in major cities Russia:

Handmade requires application quality tool, and an angle grinder with nozzles greatly facilitates the work and speeds up the process of processing a wooden surface.

An angle grinder, a power tool familiar in working with metal, is also effectively used for processing other materials. Many people put a wood disc on the grinder without thinking about safety.

Is it possible to cut a tree with such a disc and what types auxiliary tool there are Bulgarians, let's figure it out.

There are special wood cutting discs designed for this job, but this is rather an exception. In addition, such a disk is not suitable for every angle grinder.
Let's consider several options.

Saw blades, blade and chain hybrid for chainsaws

These cutting discs can be used to cut boards up to 40 mm thick, with extreme care. Rules, non-observance of which lead to injuries:

The saw blade has metal base and a chainsaw chain fixed around the perimeter

1. It is strictly forbidden to remove the protective cover if the diameter of the disc exceeds the dimensions of the casing - your angle grinder cannot be used.
2. The angle grinder must run at the RPM indicated on the disc. Otherwise, the chain may jump off and its components may fly apart.
3. Safety goggles and thick gloves are required. It also does not hurt to wear thick canvas clothes.

IMPORTANT! Use normal discs for circular saw, on an angle grinder is strictly prohibited.

The same applies to diamond cutting discs on concrete. They are unsuitable and dangerous for sawing wood products. Firstly, the work efficiency is extremely low, especially considering the cost of the disk. Secondly, you can simply burn the workpiece.

And finally - such a disc can jam in the cut at any moment, and you will get hit by the grinder's body. Here is an example of a disc for a grinder, with which you can saw a tree with extreme care.

The design of the circle provides protection against jamming with the help of side teeth that expand the width of the cut. The disk has a diameter of 115 mm, and its dimensions allow you to work without removing the protective cover.

The wood disc fits completely under the protective cover

Some homegrown "masters" fit standard circular saw blades under, the work is done with the protective cover removed. Most often, such experiments end tragically. The unfortunate master receives severe injuries, and a fatal outcome is also possible.

At the same time, the construction markets are full of offers of saws for a grinder for wood. Sellers will assure you that in the hands of a professional, the use of such a tool is completely safe. This statement is true as long as these very hands are safe and sound.

All photos from the article

At present, the angle grinder, popularly known as a grinder, is deservedly considered one of the most universal tools. It is in the arsenal of almost any good owner. With such an assistant, it becomes possible to quickly and effortlessly cut, grind, polish, peel or saw almost any material with your own hands.

The secret of such unheard-of popularity is the simplicity of the instrument. The instruction for the grinder provides for fastening a certain disk or nozzle to a rotating shaft.

After that, depending on the purpose of the disk, you can perform certain work. The scope of application can be varied, but in this article we will focus more on cutting and processing wood.

Tip: according to most experts, it can only be used for fragmentary work. Moreover, this must be done very carefully, the risk of injury is too high.

General characteristics and purpose of disks

The range of this product is simply huge, in each sector there are dozens of types of products. But all this mass can be divided into several main areas.

Disk types

• Wheels or discs with an abrasive coating are designed for grinding and polishing various surfaces. Since the wood is not polished, this sector uses grinding disc on wood for the grinder.
• Diamond-coated wheels are more used in construction, they are segmented and solid. With their help, especially durable materials are cut, such as stone, concrete monolith and, in some cases, metal. For carpentry, such products are not used.

• Saw blades for wood for grinders, visually practically do not differ from circles for a circular saw. But they are made of a completely different metal. Until recently, this product was a rarity, now there are quite a lot of high-quality wheels for wood made of tungsten carbide on the market.

Important: in no case, do not even try to set the circle from the circular to the grinder. Theoretically, this can be done through an adapter, but circular discs designed for low speeds and in the grinder, in the vast majority of cases, they warp or simply scatter.

• Regardless of the purpose, all circles have several standard diameters. Most small disk on wood for grinder 115 mm. But the most popular is a wood disc for a 125 mm grinder.

• Wood is a specific material, so you should not take circles for it designed for cutting concrete or metal.. These materials require high strength and high speed, in a tree such a circle can simply get stuck, which will lead to its destruction or burn your grinder.
• The shaft diameter in all modern angle grinders for wood is standard and is 22.2 mm. But, in the recent past, there were several gradations, so you should pay attention to the markings. For example, a wood saw blade for a grinder 125x22.2 mm can be installed through a nozzle on a thin shaft of an outdated machine, but if the shaft is thicker, your circle will be useless.

Important: the maximum diameter of a manual angle grinder is 230 mm. So, even if you manage to find a wood disc for a 230 mm grinder, then it is better to refuse to install and use it. The point is that what larger diameter, the higher the chance of injury, especially when working with wood.

cutting wheel

In view of the fact that this tool is characterized by high speed and cannot be rigidly fixed in the hands, for such circles, high-strength tungsten carbide is taken, and therefore the price for them is solid.

A cutting disc for wood for an angle grinder 125 mm is classified not only by diameter and, accordingly, the depth of cut, but also by shape, frequency and number of teeth.