A wood sander is an indispensable tool when performing finishing work in country house. Using a sanding machine allows you to speed up the process of sanding and polishing wooden surfaces - wall cladding, floors, furniture, decorative elements. Wood sanders are convenient and compact, allowing you to perform high-quality leveling of any wooden surface.
There are several main types of sanders for household use; their different designs and operating principles determine their purpose. For construction and repair, carpentry and carpentry work, the following types are used: grinding machines:
- Belt sanders (LSM) are tools for aggressive and rough processing of wooden, plastic, and metal surfaces.
- Vibratory grinders (VSM) allow for softer processing due to circular movements with small amplitude. The grinding surface of the orbital sander has rectangular shape, which makes it easier to process corners.
- A type of flat vibratory sander is a delta sander; it is distinguished by a triangular shape of the sole. The delta sander is convenient for processing small and hard-to-reach areas, corners, recesses and recesses.
- An eccentric sander refers to a tool that allows you to grind a surface to a polished state due to a combination of rotational and oscillatory movements of the sanding pad. But an eccentric sander is not suitable for processing small surfaces and internal corners.
Application of belt sanders
Belt sanders are used where it is necessary to quickly remove a fairly thick layer of material, for example, for sanding unplaned boards or removing old paint from surfaces. LSMs are also used for precise fitting of parts and processing of the cut line.
The material is processed using an abrasive belt, closed in a ring and stretched on rotating rollers. When moving, the tape removes a fairly thick layer of material, comparable to the work of an electric planer. The thickness of the removed layer depends on the grain of the abrasive belt.
When choosing a blade grinder, you need to pay attention to two parameters: the width and length of the abrasive belt used and its rotation speed. The area of the processed surface depends on the width, and the aggressiveness and degree of processing depends on the speed. Standard sizes tapes for LSM are as follows: 76x457 mm, 76x533 mm, 76x610 mm. The belt width of semi-professional sanders may be larger - 100 mm, but they are rarely used for household needs. The belt speed is usually in the range from 150 to 500 meters per minute, the power is from 400 to 1200 W. Useful functions include smooth regulation of the belt rotation speed and an automatic belt centering device, which prevents it from slipping off the rollers even during rotational movements.
There are two types of abrasive belt for blade grinders, with an abrasive layer of aluminum oxide or zirconium. Zirconium tape provides a deeper but more aggressive finish and promotes scratches that need to be treated with a less grainy tape. For processing metal surfaces, it is better to choose a zirconium tape; it can be used to sharpen cutting surfaces.
Surface processing using a belt sander is carried out as follows: place the machine on the surface to be processed without distortions, and, without putting pressure on the machine, make smooth longitudinal or circular movements along the surface of the material. If precise fitting of parts is necessary, grinding is carried out with short-term translational movements or using a bounding frame.
Application of orbital sanders
The operating principle of these tools is similar: grinding is carried out through light circular and oscillatory movements of the grinding surface with an amplitude of up to 5 mm. Sheets of sandpaper with different grain sizes are used as an abrasive material, secured to the sole using clamps or Velcro.
Vibratory sanders provide high quality processing and are used for grinding almost any material: wood, plastic, metal, plaster and putty, as well as for removing corrosion products and old paint and varnish coatings.
The degree of processing depends on the amplitude of vibrations: for rough processing, an amplitude of 4-5 mm is chosen, for fine grinding - 1.5-3 mm. For household models, the rotation speed is usually adjusted in the range of 2000-5000 rpm, and the oscillation speed can be in the range of 25,000 per minute. The ability to regulate the eccentric amplitude, rotation speed and oscillations are very useful options for a VSM.
An important parameter is the power of the VSM; it is usually in the range of 150-600 W. The higher the power, the greater the productivity and continuous operation time of the tool. Another important factor determining the use of a VSM is the shape and area of the grinding pad. It can be square, rectangular or deltoid.
The use of eccentric (orbital) sanders
Orbital sanders are similar in principle to rectangular orbital sanders, but are distinguished by greater productivity and a finer degree of grinding and polishing due to the complex oscillation path. Surface treatment is carried out with a grinding disc with a diameter of up to 150 mm; special sanding wheels with different grain sizes or grinding felt attachments are used as an abrasive attachment.
The power of orbital sanders is usually 200-650 W, the speed is up to 13,000 per minute, the eccentric oscillation speed is up to 24,000 per minute. Regulating the number of revolutions and oscillations, as well as adjusting the amplitude of the eccentric, like the VSM, are very useful functions.
All grinding machines are characterized by the formation of large amounts of dust during operation. Some models are equipped with holes in the sole for collecting dust and a dust collector. This option is very useful when working indoors, so if possible, you should pay attention to models with dust collection. Also important point is the length of the cord - with a short cord you will have to constantly use an extension cord. You can also choose a cordless sander. When purchasing, you should pay attention to the shape of the handle and the weight of the tool, holding it in your hands for some time, trying out the inclusion and regulation of modes.
Video - review of wood sanding machines
- Types of machines
- Features of application
- Draw machines
- Vibrating apparatus
- Eccentric machine
- Homemade option
- Drill grinder
- Popular models and costs
The wood sander is widely used in industrial enterprises and in everyday life, where various surfaces are processed during production process or during construction and renovation work.
Using such a compact device, craftsmen quickly and efficiently grind or polish floors and walls, restore dilapidated furniture and clean the surface of old paintwork.
Types of machines
Modern equipment with such functionality can be divided into several types according to the operating principle and design features of grinding units. When choosing a wood sander, you need to focus on its purpose, for which we suggest familiarizing yourself with the main types of equipment and its features.
Tape(LSM). The main purpose of belt sanders is rough processing of wood.. Depending on the interchangeable attachment, they can also be used for processing metal and plastic parts.
Vibrating. Such samples are used where it is necessary to carry out delicate grinding of the workpiece using circular movements of small amplitude. The working “sole” of the vibrating units is made in the shape of a rectangle specifically for processing corners. One of the varieties of such a device is a delta grinder, characterized by a triangular working element that provides for processing recesses and recesses, as well as hard-to-reach areas.
Eccentric (ESM) or orbital. This unit is capable of not only grinding, but also polishing, after which the material acquires a perfectly smooth surface. This effect is achieved due to the oscillatory-rotational movements of the device plate. However, it is worth noting that such equipment is not suitable for small surfaces and internal corners.
Features of application
When choosing a grinding machine for home use, make sure that this model is suitable for the intended procedures and can fully perform the assigned tasks.
Each type of sander has its own characteristics and recommendations for use, which we suggest you briefly familiarize yourself with.
Draw machines
Belt sanders are purchased by those who plan to remove an impressive layer of wood from a workpiece. IN this segment good electric tools are represented by the Bosch and Makita brands, which are very popular among craftsmen. They perfectly process unplaned wood and remove old, thick layers of paint from carpentry. A belt sander will come in handy if you need to adjust furniture elements or sand the ends and cut points.
The operating principle of this type of machine is the effect of abrasive material on the workpiece. So, an sanding belt stretched on rollers along a ring moves at a given speed, removing a thick layer of material, just like an electric plane does. The thickness of the removed layer and the quality of work can be adjusted by the grain size of the tape and the number of revolutions of the working element, and the width of the abrasive affects the area processed in one pass.
In most cases, the presented brands of belt sanders are equipped with a standard belt 76x457, 76x533 or 76x610 mm, so it is convenient to process with their help wood material of various sizes, choosing the optimal version of sandpaper. Semi-professional units can be equipped with abrasives over 100 mm wide, but home craftsmen are unlikely to need such equipment. Standard rotation speed parameters for these machines vary from 150 to 500 m/min with a power of 400 to 1200 W.
When choosing belt-type grinders, give preference to samples with speed control and automatic centering of a tensioned abrasive made from zirconium or aluminum oxide. As practice shows, for more gentle work, choose aluminum oxide tape, such as shown in the photo.
Vibrating apparatus
The principle of operation of vibration technology for sanding wood is similar to the previous version. Here the process is performed with light oscillatory-rotational movements with an amplitude of up to 5 mm using ordinary sheets of sandpaper. The type of sandpaper grit depends on the tasks at hand; this rule remains the same for all types of equipment. The abrasive material is fixed to the “sole” of the machine with Velcro or using a special clamp provided by the design of the unit.
By tradition, let's turn to Bosch and Makita grinding machines, which are rightfully leaders in the carpentry market among similar devices. In addition to their main purpose, they remove metal products corrosive manifestations, remove paint, remove plaster and putty material. By adjusting the amplitude level, you can choose the degree of grinding, from coarse to finer. Household versions of machines have a speed of 2000 - 5000 rpm, and their oscillation speed is within 2500 per minute.
The power of such units can range from 150 to 600 W, and when purchasing a tool, these parameters are among the most important. The higher the power rating of the grinding device, the longer you can work without interruption on such equipment, and its performance will also be significantly better.
Eccentric machine
Despite some similarity between orbital sanders and vibrating samples, it is worth noting their higher performance indicators. This machine allows you to get a perfectly polished surface without much effort. The working process here is carried out using a disk element with a diameter of up to 150 mm. As an abrasive, eccentric units are equipped with emery wheels or felt attachments, which are indispensable for polishing procedures.
Even a beginner without experience can work on an eccentric unit with his own hands; the main thing is to correctly determine the optimal power on the device. Returning to the representatives of the Makita and Bosch families, we note that their power varies from 200 to 650 W at speeds of up to 13,000 per minute. As with any choice of grinding tool, in this case it is worth giving preference to machines with the ability to select the vibration amplitude and speed, which will make it easier to complete the tasks.
An orbital wood sander from the two leading manufacturers discussed above costs from 4,000 rubles, and its cost may vary depending on technical characteristics and configurations. In order not to overpay in vain for unnecessary options, think in advance about what and how you will do with such a machine.
Homemade option
Sometimes the price of a factory tool makes you think about making a grinder yourself, especially if you need to do a one-time job on a small scale. Many craftsmen build a grinding machine from a familiar grinder, which, in principle, is an angle grinder, but some differences still exist. It is worth remembering that the grinder operates at high speeds, and it weighs a lot, so without experience and a “stuffed” hand, it can be difficult to handle. In order for grinding with an angle grinder to give the desired result, you need to be able to use attachments and polishing wheels specially designed for such purposes. Unlike a traditional grinder, a wood grinder has much lower speed and is inferior in weight.
If you are determined to convert an angle grinder into a grinding machine for processing floors or other surfaces, which will be in no way inferior to factory samples, you will have to modify electrical diagram original tool. Here you will need to additionally equip the angle grinder with a speed regulator, which helps reduce their number. You will also have to buy a set of special attachments, but this is a consumable item, and its purchase is relevant in any case.
Drill grinder
The characteristics of grinding units make it possible to produce a compact hand-held power tool from a conventional drill, for which it is equipped with an additional attachment. Depending on the nature of the work performed, a drum or disc element can act as a working attachment. The support plate with a shank for clamping into the drill chuck is made of plastic or rubber, covered with sanding material. A part with a flexible shaft can be installed on a tool operating in manual mode, and if there is a rigid shaft, it is better to attach it to a securely fixed drill. If grinding is performed using abrasive drums, then the working surface of the grinding machine must be placed parallel to the axis of rotation.
As you can see, you can make a grinding machine with your own hands from a drill or grinder in a short time, without resorting to complex schemes and expensive components. Such a compact device is capable of processing wooden surfaces, polishing hard materials and removing old paintwork, which is necessary when performing construction and repair procedures, as well as restoring furniture.
Popular models and costs
If you want to choose a reliable factory device, we recommend that you familiarize yourself with the table containing popular equipment models, their main characteristics and estimated prices.
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Power, W |
Speed, m/min |
Price, rub. |
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Wood as one of the most popular and convenient finishing materials does not cause any particular difficulties during processing.
But to achieve a perfectly smooth surface, for example, under varnish, ordinary carpentry tools will not work. A wood sander can speed up and facilitate leveling.
This multifunctional device is presented on the market in various modifications, differing in design and application features.
Types of machines
There are several main types of sanders on sale. household use. Each grinding machine has its own design features and mechanism of action.
For carpentry, joinery, construction and repair work, the following types of power tools are chosen:
- belt sander for wood (LSM) designed for rough and aggressive processing of surfaces, including plastic and metal;
- brush sanders They allow you to highlight the texture of wood, removing more soft fibers, and remove layers of varnish and old paint. The working part is a roller on which a metal or abrasive nylon brush is mounted;
- Vibratory grinder (VShM) used for a softer finish. Gentle processing occurs due to circular movements and the small amplitude of the working tool. The sole has a rectangular shape, which makes cleaning corners easier;
- delta sander- a type of flat vibratory sander with a triangular-shaped sole. This device is suitable for processing hard-to-reach places and small areas, as well as recesses, corners, and irregularities;
- eccentric sander– a power tool that allows you to bring the surface being treated to an ideal condition, including plywood. This task is accomplished through the rotational and oscillatory movements of the sanding pad. The device has a high degree of productivity, but cannot be used for cleaning internal corners and small surfaces.
A wood sander is an indispensable tool for processing walls, floors, interior items and other decorative elements. It can speed up the process of grinding and polishing surfaces made of natural materials several times.
Angle grinder capabilities, discs for it
A grinder (angle grinder) can also be used for sanding wood. It can be used for rough processing.
This tool allows you to quickly clean wooden surfaces, in particular sand floors and walls. This universal device is capable of performing a variety of operations, with appropriate wheels for each: cutting, grinding and roughing (grinding).
A grinder can cut metal, stone, and wood. But it is not advisable to saw boards and other wood, otherwise the tool will overheat greatly. Wood saw blades for grinders resemble modern saw models, but different alloys are used for their manufacture. The only drawback of an angle grinder is the presence of various irregularities after work, which then take a long time to level out.
For grinding work, special red wheels are used. Good option– use of petal or disc wheels with a grain size suitable for each case.
Considering that the working plane is located under the protective casing, performing specific actions does not pose a danger to humans, which makes it possible to move the tool in any direction. The main thing is to be careful when working with surfaces that have protruding heads of screws and nails.
Pay attention! To make it easier and faster to replace sandpaper, it is recommended to install an attachment with a sticky surface on the grinder.
Draw machine
In a wood belt sander, the working element is represented by a belt fixed around two rollers. During their movement, the tape attached to the sole is brought into working condition and rotates at the required speed. It is the speed that is considered an important indicator of the operation of this device and it depends on the power, which can be in the range of 500-1200 W. There are tools equipped with an additional speed regulator, which allows you to select the most optimal option for each type of surface.
Belt sizes vary depending on the modification of the sanding machine. Most functional device this figure is the largest. At the same time, the weight and dimensions of the structure will also be significant. Special attention When choosing a power tool, you need to pay attention to the grain of the tape used. For ease of work, it is necessary to have several types of tapes with different grain sizes. One of the types of belt sanders for wood is a brush device that performs the roughest processing.
Orbital (eccentric) sander
According to the principle of operation, this device for processing wooden surfaces is similar to a VShM. The main distinguishing indicator is the higher productivity of the vibratory sander. In addition, processing is carried out more accurately and delicately thanks to the complex trajectory of the grinding element. The grinding is carried out with discs with a diameter of 15 cm. Abrasive circles of suitable grain size are molded onto them.
The disadvantage of an eccentric machine is the formation of excessive amounts of dust. But manufacturers supply models equipped with effective dust collectors, which allow work to be carried out in enclosed spaces.
Vibrating sander
The sole of a vibration-type technique can be triangular (iron) or rectangular. During processing, she performs circular movements with a small amplitude. The machine is used for those cases when it is necessary to obtain a high-quality surface, for example, to restore furniture before applying stain or varnish. Sanding is required especially carefully, since all flaws will be clearly visible through the transparent layer of the finishing coat. At the same time, the device has low performance.
Pay attention! It is better to choose a rectangular sole for finishing large areas, and for corners and hard-to-reach places it is advisable to use a triangular shape.
When working with a vibrating grinder, it is imperative to remove debris, any solid substances, and grains of sand so that small circles - marks - do not form on the surface. To remove such defects, you will need an abrasive wheel with the finest grain size. The surface of the wood to be treated must be thoroughly cleaned with a vacuum cleaner.
Oscillating wood sander
This electric tool is a multi-functional resurfacer that is also capable of sanding wood surfaces. It differs from other tools in its budget price and very low power consumption. It can be used to process sharp corners and areas near vertical walls. To carry out this manipulation, a special triangular platform is installed on the grinding machine, to which a grinding wheel on a self-adhesive base is attached. In addition, the device makes it possible to effectively clean the floor from glued linoleum and tiles, create slots, and cut communication lines.
During operation, the sole moves in a horizontal plane with minimal amplitude, the tops of the platform deviate by an average of 2.5 mm (1.7 degrees). Due to these movements, surface treatment is carried out. This device can be used for grinding corners and other hard-to-reach areas. The machine does an excellent job not only of removing wood, but also of smeared or dried glue. In general, the oscillatory apparatus is used for finishing in places where other machines cannot cope due to their low performance or sanding spots.
Selection criteria
When purchasing a specific model of grinding equipment, you should take into account the tasks that the power tool must perform in the future. The choice of professional or household equipment depends on this.
Professional wood sanders are ideal for long, active and continuous work. They will cost much more than household tools. For use without significant loads and long-term work, you should give preference to simpler grinders. If the choice is between a professional device and a regular one, then it is better to purchase the first option, despite its high cost. If the second one was chosen, then when working with it it is recommended to subject the device to less heavy loads. You need to pause every 3 hours. Only following simple operating rules will extend the life of the tool.
It is also important to consider the type of work for which the grinder is selected. For processing smooth surfaces, the optimal solution would be to purchase a belt sander. If there is a need for sanding or polishing decorative wooden products, it is recommended to purchase eccentric models. The ratio of the cost of consumables and upcoming costs during operation of the device also needs to be taken into account.
If you intend to use the grinding machine indoors, then you should pay attention to equipment with a built-in dust collector or the ability to connect a vacuum cleaner. Considering that the process of sanding surfaces will generate a lot of dust, you need to prepare for it to appear everywhere. Cleaning a room manually takes a lot of effort and time.
The length of the cord plays a significant role when choosing a sander model. Since it is inconvenient to work with a device on a short cord, and it is not always possible to use an extension cord.
We sell battery-powered tools that are useful for work in the country and in houses where electricity has not yet been installed. The cost of such models is high.
When choosing a device, you should test the location of the handles, check whether it is convenient to switch modes, and how difficult it is to hold the machine in your hands.
Manufacturers and models
Among the most popular factory devices, characterized by a high degree of reliability, are the following grinding machines:
- Makita 9924 DB. The device has a power of 850 W, a speed of 210-400 m/min and a weight of 4.5 kg. Price 15930 rub.;
- Bosch GBS 75 AE. The grinding equipment has a power of 750 W, a speed of 200-330 m/min and weighs 3.4 kg. Price 15050 rub.;
- Sparky MBS 976. The model is produced with a power of 900 W, a speed of 160-340 m/min, and a weight of 3.4 kg. Price 6582 rub.;
- AEG BBSE 1100. Main operating parameters: power 1010 W, speed 230-400 m/min, weight 5 kg. Price 15,470 rubles;
- Skil 7640 MA. The device has a power of 950 W, a speed of 340 m/min and a weight of 3.6 kg. Price 6100 rub.
Of course there is large number other models of grinding machines. The Interskol and Zubr brands are in demand; Hitachi, KRESS, and DeWalt products are worthy of attention. The price range is very wide and depends not only on the manufacturer, but also on the region of sale. Some DIY enthusiasts make homemade grinders using old broken equipment, drills, and hard drives. In terms of performance, such devices are unlikely to compare with factory tools, but they will save money.
To give the wooden surface a perfect smoothness, wood sanders are used. They can be used to polish both products made from new lumber and old, worn-out interior parts, parquet, furniture, floorboards, walls, stairs and other structural elements.
Wood sander
The use of a grinding tool for wood speeds up finishing work and improves its quality, and when constructing a frame wooden house You simply cannot do without a grinding machine.
Classification of grinding machines
The variety of models, design features and purposes of grinding machines creates the need for their typology. For domestic and industrial purposes, the following models are available on the market:
- belt sanders, including flat-face grinders;
- vibration, including delta grinders;
- orbital or eccentric;
- angle grinders (grinders);
- brush type grinding machines;
- multifunctional renovators.
Purpose of each type of grinder
Different wood sanding equipment performs different functions. A belt sander for wood is intended for rough, primary surface treatment. It can also easily remove a layer of old paint.
A vibration grinder provides a softer, higher-quality grinding thanks to circular movements of small amplitude. Its working surface has a rectangular shape, allowing you to process areas in straight and obtuse corners of the product. Its version, the delta sander, is equipped with a sole shaped like an iron. This smoothed triangular shape ensures surface treatment in small recesses, recesses, and internal sharp corners.
The purpose of an eccentric or orbital sander is to perfectly grind the surface, practically polishing it. The quality of processing is ensured by the oscillatory-rotational movements performed by the plate. Its shape does not imply use on small surfaces and in hard-to-reach places.
A grinder or an angle grinder, which is found in most home workshops, is often used as a wood grinder. In addition to this main function, the tool can perform many other operations, for which it enjoys well-deserved popularity.
Instead of a wood sander, you can use a multifunctional renovator with a significantly expanded range of functions. In addition to polishing and sanding, this tool can make cuts, cut communications, remove tiles or glued linoleum. It is distinguished by low power consumption, many attachments included and a relatively low price.
A brush-type wood sander is equipped not with an abrasive material, but with a metal brush. It is convenient for her to work on large areas, to work with large objects - boats, parquet and plank floors, countertops, cleaning them from old coatings and plaque. By the type of movement, brush sanders are similar to belt sanders.
The last two types of grinders are used quite rarely. The operation of the equipment can be carried out thanks to an electric motor powered by a network or battery. There are always craftsmen who prefer to make any devices on their own, but a homemade grinder cannot compare with an industrially manufactured one either in performance or functionality. It is mainly suitable for sanding small parts.
Belt sanders
The device of a belt-type sander is based on a roller fastening of an abrasive belt on the sole. It provides rotation at different speeds depending on the power, which varies in the range from 400 W to 1200. In some models, the speed can be changed from a minimum of 150 meters per minute to a maximum of 500 in accordance with the surface properties.
The functionality of the tool is determined by the width of the sanding belt. The larger the tape size, the large surface can be processed in the same time, but increasing the size of the tape makes the structure heavier. Another important indicator of the tape is its grain size. If there are tapes with to varying degrees Grain size can vary the quality of wood sanding. In addition, the tape must be strong, elastic, with straight edges and smooth joints.
Grinding belt
Machines with a belt-type mechanism are usually equipped with devices for collecting dust and debris, and some are equipped with a connection for connecting a vacuum cleaner. Useful additional functions of a belt sander for wood are the ability to automatically center the rotating belt and smoothly control the speed of its movement.
Features of application
Before choosing a belt sander, it is useful to decide what the purpose of its use is. Small or mini sanders are designed for small jobs that can be done with one hand. They are equipped with a device for a 6.3 cm wide tape. The medium-sized ones work with a 7.6 cm tape, and the largest ones, intended for construction, are equipped with devices for a 10 cm wide tape.
A device that simulates the operation of a plane is used to remove the top layers of lumber, as well as to process the cut line and fit wood parts. Linear action combined with the right choice tape allows you to achieve even a delicate finish.
To work directly near the wall, a belt sander with a flat end is used. Such a surface grinder allows processing right up to the junction with the wall. It is better to carry out large volumes of work using a stationary structure, which is equipped with functions for controlling the depth and quality of grinding.
Rough initial grinding is carried out at an angle against the grain with an 80-grit belt, and final polishing along the grain with a No. 120 belt. Zirconium tapes are used for rough processing, and aluminum oxide for gentle processing.
Vibratory sanders
Abrasive sheets are attached to the oscillating working surfaces of the vibratory grinder using clamps or Velcro. Grinding occurs through light circular and oscillating movements. The amplitude of oscillations can be adjusted. Coarser processing occurs at an amplitude of 5 mm, and the finest at 1.5. Sanding wood in hard-to-reach places is done with a delta sander having a sole shaped like an iron. The main advantages of such equipment are: its low weight (sometimes less than a kilogram) and dimensions, high-speed oscillatory movements.
When choosing a grinder, its power and oscillation speed are also important. It is useful to select a vibration-type grinder taking into account the possibility of adjusting the rotation speed, which in household units can vary from 2 thousand to 5 thousand revolutions, and fluctuations, which can reach 25 thousand per minute.
Features of application
Convenient to use devices with a sole that can be rotated at different angles. The vibratory sander can be used both for processing new lumber and for restoring furniture, old window frames and other structural wooden elements. There are models to which additional attachments can be attached.
Orbital sanders
The working surface of the sole of an orbital (eccentric) sander has the shape of a circle with a disk up to 150 mm in diameter. It has tiny holes made in it to remove dust. The eccentric grinding machine uses the principle of combining oscillatory and rotational movements, as in a vibrating machine, but the quality of polishing is improved due to the complicated trajectory of movement.
When choosing an eccentric grinder, you should pay attention to the operating speed of the device or the number of oscillations per unit time. The ability to adjust the rotation speed and oscillation frequency is optional, but an important additional feature that allows you to select optimal mode work depending on the quality of the surface.
The power of an orbital sander can range from 200 W to 500, the speed can reach 13 thousand per minute, and the eccentric oscillation frequency is 24 thousand per minute.
Features of application
The discs are coated with abrasive material, which is supplied with the orbital sander and can have different grain sizes to achieve the required degree of processing, down to the finest. Orbital sanders come with polishing felt attachments.
During construction or production, pneumatic modifications are used, but their operation requires high-performance compressor equipment, so pneumatically driven orbital sanders are not used in everyday life. Random orbital sanding equipment is suitable for high-quality finishing of all large wooden surfaces. It can be used to level modular parquet and other expensive cladding.
Angle grinders
Angle grinders are commonly called grinders. Craftsmen love this tool for its versatility; it can be used for grinding and cutting. various materials, but initially it was intended specifically for sanding wood. Grinders are distinguished by their high power and high speed of tool rotation, but they are not suitable for processing internal corners.
Grinders are used as sanders for wooden floors. What kind of woodworking operation will be performed depends on the attachments used. For rough grinding and polishing of painted surfaces, sanding discs-plates consisting of three layers are used. The outer layer is made of either sandpaper or wool flannel, depending on the purpose.
Rough grinding is carried out with flap discs, the working surface of which is covered with sandpaper petals. When processing a wooden floor, 2 or 3 petal discs are used per 10 square meters. m.
To remove a layer of old paint, scraping devices—steel cups with wire brushes—are used.
Review of grinding machine manufacturers
Before choosing a grinding machine, you can read information about domestic and foreign manufacturers. It is preferable to focus on models produced by well-known, well-established manufacturers.
Popular brands are: Bosh, Makita, DeWalt, Hitachi, Interskol, Zubr. Their products are distinguished by durability, high performance and affordable prices.
Approximate costs of popular models different types famous brands are given in the table:
| Brand | Makita | Bosch | DeWalt | Hitachi | Interskol | Bison |
| Tape | ||||||
| Model | 9910 | PBS 75 A | DW750E | SB8V2 | LShM-76/900 | ZLSHM-950 |
| Price in thousand rubles. | 7,5 | 6,5 | 12,5 | 8,5 | 3,5 | |
| Vibrating | ||||||
| BO3710 | GSS23A | D26420 | SV12SG | PShM-15/300E | ZPSHM | |
| 3,5 | 4,4 | 15,5 | 4,0 | 2,9 | 2,6 | |
| Orbital (eccentric) | ||||||
| BO5021 | PEX220A | DWE6423 | SV13YB | EShM-125/270E | ZOSHM-450-125 | |
| 4,7 | 4,1 | 4,7 | 5,4 | 3,0 | 2,5 | |
- Makita is famous for its belt sanders with high performance and ergonomic design;
- Bosh produces high-quality tools of all types, but consumers rate eccentric ones especially highly;
- Hitachi produces premium tools; domestic brands Interskol and Zubr are distinguished by their simplicity and reliability.
Most manufacturers produce sanders for household use, as well as for construction and the production of high-quality lumber. Professional models are much more expensive than household ones, but they can work for an entire shift without breaks, while household equipment needs to be turned off every 15-20 minutes of operation.
The buyer may be interested in how much a budget-class sanding machine costs. You can purchase an orbital (eccentric) sander for up to 3 thousand rubles from domestic brands: Temp, Riobi, Skill.
Products manufactured under the Temp and Riobi trademarks have the function of changing the speed, but do not allow the eccentric to be adjusted. Skil brand equipment is heavy and large in size, but is equipped with load indicators.
An angle cutting machine for wood can be bought at a price of 2 thousand to 3 thousand rubles (brands Caliber, Bort, Enkor), or for 6-7 thousand rubles from the Interskol brand, but this will be a more powerful tool.
The prices given are approximate. In addition to the cost and technical characteristics, when buying a tool, you should hold it in your hand and check the following:
- Is the tool convenient to use?
- Listen to the sound to see if it is deafening even through headphones.
- Feel the vibration, whether it is uniform or sometimes hits your hand.
- Pay attention to the warranty, check the availability of a service nearby.
- Compare the functions of similar models from different manufacturers.
Safety precautions
When working with a wood sander, you cannot neglect simple rules: wear headphones, a respirator and safety glasses. If the unit is equipped with a dust collector, it must not be cleaned without first unplugging it. The tool should be stored out of the reach of children and should not be left unattended, even when not in use.
Before connecting the unit to the network, you should make sure that the button on the tool is in the off position.
