Grinding attachment for a grinder - how to grind a tree with an angle grinder. Disc for a grinder on wood: how to choose the right grinding and cutting wheel? Cutting disc for wood

corner Sander, which is commonly called a grinder, is not intended for processing wooden products. Even with proper selection of working circles, such operations are unsafe for health. Manufacturers producing discs for wood grinder 125 refer to this aspect in operational conditions, but not all people pay attention to this warning.

Working discs for angle grinders

In modern industry for the grinder, several types of discs are provided:

1. Abrasive wheels, which are divided into grinding and cutting wheels, are quite fragile if they are not used for their intended purpose. The range of operations for which they are designed is performed perfectly.
2. Discs with diamond-coated that are used to process building materials and hard rock stone. Subdivided into solid and segmented. Segmented discs are more suitable for grinders for metal.
3. Working circles for circulars, which experts do not recommend using in the processing of wooden products. It is better to choose saw blades adapted for the grinder, which are also popularly called a milling cutter.
4. Chain discs for grinders. Although outwardly they resemble shots from horror films, they cope with wood operations. the best way. They consist of a circle, along the edges of which a chain is applied like on a chainsaw. High-quality steel allows you to perform various operations with lumber, or rather, milling, modeling, stripping and cutting holes in logs.

When choosing wood discs for a grinder, you need to pay attention to the following points:

• the diameter of the circles should not exceed the diameter for which the grinder is designed;
• select the main details should be only those that are allowed for manipulation with the tree;
• sometimes you have to remove the protective cover, which is unsafe.

Therefore, you should try to select only those working circles that are provided for these tools, taking into account the diameter of the grinder and the material. Experimenting with power tools at high speeds may result in injury.

The nuances of using each type of circle

Diamond wheels can be called universal because they are suitable for almost any material. For processing building stones and other hard rocks, this disc is ideal. But segmented diamond-coated wheels are not used for metal processing, and they will not cope with wood either. Lumber usually hides many surprises in the form of knots and structural heterogeneity.

Metal abrasive discs 125 may be used to cut through wood. But at the same time:

• the thickness of the material should not exceed 4 cm (and it will have to be cut on both sides);
• it is necessary to take a break regularly to check the circle;
• change it at the slightest sign that the part has led;
• change a worn disk in a timely manner.

And you should also be prepared for smoke and the smell of burnt wood. It can take more circles to process lumber than a steel plate.

The use of circular discs for an angle grinder 125 is dangerous to health and life. Although there are advisers on how to adapt a circle for a circular grinder, it is better to refuse such recommendations. If only because the speed of rotation on the angle grinder is higher, because of which there is a danger of breaking the circle and increased vibration of the power tool. Circular circles are very fragile, and during their use on the grinder, there is a possibility of injury from flying fragments.

In such cases, it is better to use a milling cutter for a circular saw. It is distinguished by the shape of the tooth and the presence of special expanders, which eliminates jamming, minimizes the appearance of a reverse impact and the occurrence of vibration.

For lumber processing, it is best to use chain discs on wood. The tool steel used for their manufacture is able to withstand loads and not shatter into fragments.

The service life of such a circle with a chain is several times longer than that of a cutter, in addition, it can always be sharpened. But the price of chain discs for a wood grinder 125 or 230 exceeds 2 thousand rubles.

Safety first!

Convenience at the use of angle grinders in transactions with wooden material overshadows safety.

However, you can minimize the risk by observing some conditions:

1. When working with a grinder, use safety glasses and overalls.
2. The protective cover must not be removed.
3. Do not use a defective wheel in work, as well as discs on which there are even the most minor defects.
4. When working with a grinder, you should hold the tool with both hands.
5. It is impossible to lay the grinder until the rotating part stops completely.
6. The cord from the tool should be at a distance from the working circle.
7. Refrain from planned actions with a grinder if you feel unwell and in a state of intoxication.
8. Use wheels that are strictly suitable for the diameter of the tool and designed to work with the selected material.

These rules will help to avoid unnecessary injury when using the grinder in woodworking.

When choosing working discs for a grinder when buying, you should remember that it is better to spend a significant amount once, but to purchase a circle with a chain for a long time. It will help to perform many operations when working with lumber, as well as raw logs.

If the wheel is needed for a one-time use, you can opt for a milling cutter. Such a disc can also be used in working with aerated concrete and other materials. The cost of the cutter is lower than the chain cutter, but also exceeds the price of the abrasive device.

The most extreme case is the purchase of a cutting abrasive disc. But you should be prepared for strict observance of safety precautions: there is no need to swallow smoke and “enjoy” the aroma of burnt wood. In any case, such savings can cause irreparable harm to health, as well as lead to additional costs.

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 intended for grinding and polishing various surfaces. Since the wood is not polished, a wood grinding disc for a grinder is used in this sector.
• 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, saw blade on wood for a grinder 125x22.2 mm through a nozzle can be installed 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 the diameter and, accordingly, the depth of cut, but also by the shape, frequency and number of teeth.

If it is necessary to carry out woodworking work, many people think about using a grinder as the main tool for work. In general, an angle grinder can be used, but its scope is limited. Yes, with using angle grinder can be sanded, polished and peeled wood. Now special nozzles used when working with wood have become very popular, but not all of them can be used.

To understand whether handle wood grinder, you need to study the device and the types of nozzles existing for it and what characteristics they have. So, any circle has its own diameter.

The most compact is 115 mm, which is more often used for grinding and simple processing. The most common diameter is 125 mm, it is not heavy, it is used for grinding and cutting workpieces. Nozzles from 180 to 230 mm are used in the tool high power and are more often used in professional construction.

Types of disks are usually divided according to production technology and purpose (for metal, for stone).

Abrasive coated discs

Is an universal disc- with his help can cut and grind both metal and stone. The abrasive coating consists of corundum, electrocorundum or silicon carbide. Among the advantages of these circles are:

• Cooling of consumables due to the porous structure of the disk.
• During the work is not blunted.
• Wide range and low cost.

The disadvantages include:

• The formation of a large sheaf of sparks during work.
• Strong burnt smell when cutting workpieces.
• Rapid wear.

The most common version of the attachment for the grinder, which is used when working with stone and metal. There are three types of diamond discs:

1. Solid. One-piece disc with a continuous diamond-coated edge. Designed for wet metal cutting.
2. Segmented, in which the cutting edge is divided into segments. Used for dry cutting.
3. Turbodisk with cutting edge in the form of a wave, in connection with which the contact area with the workpiece is reduced, which ensures the natural cooling of the circle. Can be used for both wet and dry cutting.

The diamond blade is wear resistant with very precise cut line, does not smell of burning, and the number of sparks during operation is minimal. Disadvantages include relatively high cost and low heat resistance.

The use of diamond and abrasive discs when working with wood is fraught with breakage of the grinder, and replacing them with circles used in circular saws or milling cutters is prohibited - these nozzles are designed for low speeds. The use of such circles in angle grinders can lead to breakage of the tool itself, so a new type of nozzle is becoming more and more popular: cutting disc on wood for a grinder, the use of which is theoretically allowed in woodworking.

Wood discs for angle grinders

Visually, they resemble a cutter, there are also discs with a chain surface. The most standard is a wood saw blade for a grinder of 125 mm in diameter, with an increase in diameter, the risk of injury and mutilation during work increases. The optimal thickness is 2 mm, and the cutouts should be rounded towards the shaft. There are three types cutting discs on wood for grinders, which differ in the shape of the teeth:

1. Trapezoidal fit for cutting chipboard medium density.
2. Variable beveled teeth are versatile and are well suited for occasional applications where material type and thickness are not known in advance.
3. Straight teeth are used for soft woods such as softwoods.

Wood sanding discs

For peeling works use a petal disk, working surface which consists of several strips of sandpaper of various grain sizes. This nozzle provides soft grinding, however, remember that you need to work with well-dried wood.

In addition to petal, the so-called sticky disk. It is a nozzle on which you can stick sanding paper of various grain sizes. The connection takes place with the help of a special adhesive paste applied both to the circle and to the sandpaper. Using a Velcro disc, you can process both wood and workpieces made of metal and stone.

There are special nozzles for brushing - the process of artificial aging of wood. They are brushes with metal, synthetic and sisal bristles, the choice of which depends on the stage of processing. So, metal brush suitable for primary peeling of the workpiece, synthetic bristle is intended for intermediate grinding, finishing polishing is performed with a sisal brush.

In conclusion, it should be noted that the angle grinder is not structurally intended for sawing wood and using carbide discs. For this there are special tools: circular saws, cutters. They have a lower speed, and the use of cutting discs for wood for grinders systematically leads to injuries, including those incompatible with life. It is possible to consider angle grinders as a tool when working with wood only in the case of grinding work.

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 it’s not at all easy to choose a grinding wheel for a wood grinder. 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 a diamond dusting - enjoy very wide popularity. 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 a wood saw blade for a 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 125 × 22.2 mm.

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 activity, 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 in 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 peeling nozzles.

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 in solving 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 way 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.

Angle grinder (angle grinder)

A wide range of power tools on the Russian market is designed to facilitate different types handmade. If in professional field purchase specialized equipment is simply necessary, then in everyday life it is not always rational to spend money on an expensive tool that, after doing a certain job, 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. To perform grinding and polishing of wooden products or large surfaces of the array, you will need to purchase the appropriate nozzle - a circle. For grinders different sizes nozzles are selected, designed for a certain speed of rotation. 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 designed. 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 disc with a coarse abrasive coating designed to perform rough grinding and removing irregularities 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. Its working surface is 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.

Sanded finish on different stages processing may remain a little rough or will be perfectly smooth 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 angle 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. The universal nozzle for 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);
• grit (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 selected 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.