Which grinder is better belt or vibration

Model Bosch PBS 75 AE

750 W two-hand sander. It is intended for the treatment of various wooden surfaces, for example, walls made of timber or logs. Belt width 75 mm. Equipped with a system of stepless speed control of the main shaft. Device weight 5.6 kg.

Output. The Bosch PBS 75 AE 0.603.2A1.120 has a higher productivity compared to other models in the same class. This makes it a good choice for entrepreneurs who provide paid services and are interested in getting work done quickly. Due to the high enough price, it seems impractical to buy a machine for use only in the household.

Bosch PSS 200 AC

Vibrations are well damped by a special system, and they are attenuated in the area of ​​the handle. Hands will not get tired while using this machine. There is an adapter for a vacuum cleaner, a bag for collecting dust. The model has an ergonomic body with a rubberized grip. Such a machine will be very convenient to use for both right-handers and left-handers. Electronic adjustment of the amount of vibrations is provided, the set also comes with a convenient plastic case for storing and transporting the product.

  • Very comfortable to hold in your hand;
  • Acceptable cost;
  • Comes with a plastic case;
  • High build quality. no backlash and squeaks;
  • Vibration practically does not reach hands.

Caliber MPSH 300R

The top three is closed by an ultra-powerful unit from a Russian manufacturer, one of the best in terms of price / quality ratio. The abrasive sheet is secured with a clip, and the aluminum sole can withstand the most extreme loads. With a 300 watt motor, you can polish walls, clean rust from metal, sharpen wood products, in a word. everything that only has enough imagination. The amplitude of the stroke of the working part is regulated by a switch in the range of 6000-10000 rpm. The rpm does not sag critically under heavy load, but when operating the device in a domestic environment, you are unlikely to notice a loss in efficiency. The machine is equipped with high-quality sanding paper, in addition, in the box you will find a removable dust collector and a user manual. Perhaps the only drawback of the “Caliber” is the body is made of a single piece of plastic, there are no rubberized handles, as in the vast majority of models, so you can work with the device for a long time only with gloves.

Ryobi RSS280-SA30 (5133003680)

Inexpensive and highly reliable 280 W vibration grinder from a Japanese manufacturer. Well suited for precise processing of various surfaces, effectively removes scratches and rust from metal, produces high-quality finishing. The sanding material is fastened with both clamps and Velcro. The unit has a built-in dust collector that works very efficiently thanks to the innovative cyclonic dust suction technology, so you don’t have to pick up debris all over the work surface. The presence of a special adjusting screw allows you to change the speed. The light weight of 1.7 kg will not seem heavy even for a fragile girl. The presence of a comfortable rubberized handle allows you to hold the machine when working with even one hand. Comes with 30 spare abrasive sheets along with a special transport bag.

Bosch PBS 75 AE

This is one of the most productive models of the best belt sander. it is possible to achieve this due to the rather powerful 750 W motor. The device interacts well with all kinds of surfaces. A starting current limiting function is provided, so that the motor starts to run smoothly, there are no jerks. The belt rotates at 350 meters per minute during idle. The area of ​​the working surface is 76×165 mm, thanks to this moment, the structure can be used to process large areas, in addition, this parameter allows you to make a more accurate surface treatment.

The design provides an electronic speed control system, which allows the machine to automatically adjust to any material. The mass of the device is not too large. 3.2 kg, it is quite convenient to hold it with both hands, the model shows itself perfectly both on horizontal and vertical surfaces, the tape is not clogged with dust.

  • Fast belt replacement system;
  • Significant surface to be ground;
  • Dust collection bag available.
  • It is difficult to work in corners, you have to finish the surface by hand.

Surface grinding (vibration) machines

If we take into account the cleanliness of the processing of parts, then surface grinders occupy an intermediate position between belt and orbital. With their help, they carry out the final grinding of flat surfaces made of a wide variety of materials. plastic, wood, stone, metal Due to the relatively large working plane, the PSHM is suitable for working with serious quadrature. The secret of the popularity of vibrating grinders lies in their moderate cost, accessibility of tooling elements, as well as in the absence of dead zones of processing (a flat outboard sole easily handles corners).

The main working body of a surface grinder is a plate, which, with a small amplitude, makes frequent reciprocating movements. The motor in such machines is located vertically, which makes it possible, using the “eccentric-counterweight” tandem, to translate the rotational movements of the shaft into the translational movements of the platform.

Most vibration grinders traditionally boast a motor with a power of 150-300 W, they are quite maneuverable, moderately light and compact. This level of power plant is almost always sufficient. However, such a consensus among manufacturers would be at least strange. there are models with a capacity of up to 600 W (Makita 9046). They are, of course, heavier and larger, but they can work for a long time without overheating at low speeds.

The most important indicator of the PSHM is the amplitude of the sole stroke. In different models, it can vary, although it is invariably a relatively small value. On average in the class, the platform moves by 1–3 mm, in more mobile models, figures of 5–6 mm may appear (Festool RS 100). A large amplitude helps to sand the surface faster, but this treatment will also be coarser.

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Another nuance is the stroke rate of the sole. At high speeds, the machine quickly removes a relatively thicker layer, while at lower frequencies it is easier to achieve a precise finish sanding. Some manufacturers make the platform movement frequency variable, exceeding 20,000 strokes per minute (Bosch GSS 280 AE L-BOXX), which allows you to adapt to the processing of various types of materials, to the characteristics of specific surfaces.

When choosing a vibratory sander, special attention must be paid to the platform. With its dimensions, everything is quite simple, there are two options: a kind of “standard” and “mini” models. the area of ​​the plate is about 100 mm 2 (Makita BO4557, Sparky MP 250). Toddlers are good for tight, tight spaces. Obviously, the sole should be of high quality, perfectly flat, with clear geometric shapes. Budget cars are equipped with a platform made of steel or high-strength plastic, and more expensive analogs are equipped with cast platforms made of alloys with m aluminum or magnesium (Festool RS 100). A good sole is characterized by precise balancing, which is easily determined by low vibration when working without load (idle). It is important what the pad is made of, the most suitable option is a porous polymer, it is better than rubber, it “holds” the plane.

Vibrating grinders with a deltoid platform are distinguished into a separate class; they are popularly called “iron” (Hitachi SV12SH, Makita BO4565). Due to their miniature size and good “cross-country ability” they are used for processing objects with small details and complex surfaces, such as furniture, woodwork, elements of stairs, car body. Their triangular platforms are rotatable. you can continue to work with an uneven “eaten” emery petal (Festool Deltex DX 93E) or removable (with a quick installation of another type of platform. for concave / convex surfaces, for structuring, polishing, rubbing).

Festool Deltex DX 93E

Emery can be attached to the site in different ways. It is more convenient when the paper is fixed with Velcro, but special equipment is relatively expensive. The version with spring-loaded clamps is somewhat more complicated, but you can use inexpensive sanding paper, cut with your own hands (you just have to make holes in the right places for dust extraction).

Fighting fine dust, which inevitably forms when working with a sander, poses many challenges for developers. They have to work hard to protect all mechanisms. In this case, a special sealing of the motor, protected bearings and switches, an impermeable housing, a system of channels with a forced dust extraction are used. So that dust is removed from the working area and does not saturate the air, it is sent to a collection bag or filter, in most cases a vacuum cleaner can be connected to the nozzle. this is the most effective method of protection.

Bosch PEX 300AE

Such a grinder has several control levers, all of them are located on the handle of the device, so it is very convenient to use it. In particular, there is a lever for changing the working speed, which is very useful when working with various materials. The handle has several rubberized pads that prevent the tool from slipping out. The device has a microfiltration system, which allows you to keep the workplace clean. The engine does not overheat due to the built-in ventilation. the machine can be operated for a long time without interruption and fears that the engine will fail. It is easy to change sandpaper due to the presence of a special micro velcro on the platform.

The weight of the structure is only one and a half kilograms, which is quite small for a vibration machine of this type. The maximum idle speed is 12 thousand. Motor power. 270 W, this allows for high quality surface treatment and fast execution of all works. The oscillation amplitude of the platform is 4 mm.

  • Perfectly copes with large areas of the processed surface;
  • Almost no dust;
  • Equipped with vibration damping system.
  • It emits a lot of noise during operation, you will have to work with headphones.

Structural difference between the two machines

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Both machines are capable of delicately sanding the surface with emery cloths. In fact, they do the same work, but there is a difference between them. They differ in both form and principle of operation. In FSHM, the surface is often rectangular (but it can be deltoid and square). And the eccentric has a round sole. Therefore, depending on the complexity of the grinding work and the shape of the workpieces, you choose a machine with a comfortable sole shape. For example, steps or shelves are quietly sanded with PSHM, thanks to the angular sole, you can reach any corner.

The eccentric machine is used for working with both flat surfaces and radii, as well as wood parts of various shapes. Orbital and eccentric grinders are used in construction workshops, in car services they perform not only finishing work for grinding wood, but are also convenient for all kinds of finishing work. But still, their main purpose is to ideally prepare the surface for painting or to give the details the required shape.

In fact, these are two identical instruments, however, there is some difference. The surface grinder (vibration) grinder will cope with any surface: wood, plastic, metal, walls (plasterboard). But she does it a little roughly, unlike ESM. In turn, the orbital sander will perform this entire list of works more delicately due to the fact that it has the function of additional rotation, which helps to hide the traces of grinding.

Surface Grinders (Vibratory)

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

The sole performs reciprocating movements in an annular orbit, due to this, grinding or polishing is carried out. The power of the electric motor of this tool is from 150 to 600 W. The sole is of two types: standard. 100 X 200 mm, and mini. miniature options with a base of about 100 X 100 mm.

The choice here is simple: mini surface grinders are suitable for narrow spaces, they are lighter and more maneuverable than standard.

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Designed for delicate processing of large flat surfaces. They occupy an intermediate place in the cleanliness of processing parts between belt and eccentric ones. Using a surface grinder, they carry out finishing grinding of various surfaces: wood, plastic, stone.

Benefits: Ability to grind and polish inside corners, availability of consumables and reasonable cost of the grinder itself.

2×72 belt grinder vibration/wobble

Disadvantages: high noise relative to orbital.

Which sander is better to choose?

Let’s start with the classification. each variety has its pros and cons, its own specialization. If you need to process planes of a large area at a high speed, and at the same time does not have the opportunity to sharpen the same drill or chisel, choose a belt sander, which, if desired, can be used as a sharpening machine. But keep in mind that not all models have the ability to attach on the side or upward with a tape! In addition, the high performance provided by a fast running belt in a circle will also require “straight-handedness”. by pushing or overexposing the machine in place, it is easy to “dig” an unevenness in an almost ideal plane. A couple more disadvantages are the complexity of the design, the presence of a belt drive and the need to buy ready-made belts of the required standard size.

Vibrating machines have a rectangular or “iron-like” (for working in corners) sole, which quickly oscillates back and forth with a certain amplitude.

In addition to the power, convenience and level of vibration that you need to pay attention to when choosing any power tool, be sure to make sure that there is good dust protection for the main components of the machine and especially in the efficiency of dust removal: it is not always possible to connect a vacuum cleaner, and it is simply dangerous to use some models of grinders without a respirator, so they throw a lot of dust into the air in the working area.

Electric file

There are special purpose belt sanders, the so-called belt files or electric files. Often used for cleaning welded seams and sanding materials in hard-to-reach places. Only certain accessories are suitable for electric files, with a width of 9 to 30 mm. Such belt grinders weigh much lighter than conventional ones. 1-2 kg.

Power, vibration amplitude and out adjustment

It was not for nothing that I indicated the power and amplitude of oscillations together, if power is a fundamental factor for many hand tools, then in the case of vibrating grinders, everything looks a little different. On average, the power of vibrating grinders fluctuates in the region of 150. 600 watts. But, you probably remember that a vibration grinder works due to the reciprocating movements of the sole, and the larger the amplitude of these movements, the faster the grinding occurs, but the weaker its quality, and therefore the smaller the amplitude, the slower the machine grinds, but of higher quality Vibratory grinders with a vibration amplitude of 1.5-3.0 mm are used for finishing grinding, and with an amplitude of 3.0-4.5 mm for fast and rough processing. Expensive models are equipped with the ability to adjust the power and amplitude of oscillations, and therefore you can perform both coarse grinding and finishing. But firstly, the price of such machines is higher, and secondly, they have more units and parts, and therefore they will outlive their days faster. Therefore, if you want to take a grinder, for example, for fine grinding, then it may be worth taking not an adjustable one, but a weak one, with a small vibration amplitude, it will be cheaper, and the machine will probably last longer.

The grinder can be from 10,000 to 25 rpm and this speed can be adjusted.

Belt Sanders

For belt sanders, the equipment, an abrasive belt glued in the form of an endless ring, moves in one direction along two end rollers, one is leading, the second rotates freely. Linear grinding and high speed of movement of the abrasive provides high productivity, but at the same time requires increased control over the grinding process. LShM weigh up to 7 kg, and the power of the electric motor varies from 500 to 1500 W.

The three main standards of belt sanders are distinguished by the length of the sanding belt: 457 mm, 533 mm, 610 mm.

Belt sanders are suitable for rough sanding of surfaces made of wood, metal, plastic, mineral building materials. Often used when removing old paint or varnish, leveling putty. Due to its high productivity, large amounts of material are quickly removed, and in combination with coarse grit, the belt sander can function as an electric planer. The quality of grinding is not the best indicator of this tool, often during processing cavities and scratches appear. Effective for sanding glued panels and processing convex parts. Models available with the ability to work upside down, stationary.

This tool is not suitable for delicate sanding and requires special control when working. It can leave indentations in the material and, due to the specifics of the sole, belt sanders do not grind in the corners. High noise level and frequent clogging of the dust extractor are the disadvantages of this tool.

Sole

The sole of a vibration sander can be rectangular for processing straight surfaces or triangular for processing corners. There are also universal soles, when the usual, rectangular one can be changed to a triangular one to access the corners. The larger the sole, the more volume it can handle, but the more powerful and expensive the tool is. Plus a large sole is that when processing a large area, it leaves fewer waves.

Grinder: vibrating or eccentric

To get a smooth and perfectly smooth surface when sanding, I always recommend that craftsmen use two sanders. One is for primary, rough roughing, the other is for final cleaning.

If everything is clear with the primary processing. here you need to take a belt sander, then when bringing the surface to perfection, you can use one of two types:

which, grinder, better, belt, vibration

    Vibrating (another name is surface grinding, or abbreviated. PShM);

  • Eccentric (ESM, another name is orbital).
  • The Best 2×72″ Belt Grinder. Washer Vibration Test

    Both are designed for sanding substrates at the completion of work. Which of these machines is better in which situation. vibration or eccentric grinder ? I will cover today in this article.

    You will find out what their main differences are, how their design determines the capabilities of each device, what are their strengths and weaknesses.

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    The information provided will give you the necessary knowledge on how to grind surfaces of different shapes using these aggregates, and which one is more suitable for you.

    Basic principles of grinding

    These two types of grinders differ significantly in the principle of grinding. To begin with, let’s review the vibrating tool. The mechanism of operation is quite simple, for cleaning the surface, reciprocating movements with an amplitude of 1-3 (low-power) to 5-8 mm (powerful) are used. This makes it possible to cope well with a metal surface or plastic, in contrast to ESM. However, PShM leaves traces on the tree and will not be suitable for opening with varnish, but only for coating with paint.

    The principle of operation of ESM is that with the help of a round sole, not only vibration occurs, but also rotation around its own axis. Thanks to such a double movement, ESHM perfectly prepares the surface for varnishing. In the process of work, it does not leave traces of grinding at all. Models of this type ideally create the effect of abrasive grinding. Widely used for furniture restoration or decoration.

    Pay attention to the parameters when choosing a grinder

    It should be noted that both of these grinders for the most part perform finishing work and if you have the task of performing work on a large scale, then the wrong choice will bring you not only monetary losses, but also wasted time.

    Vibratory or eccentric grinders can be of different purposes:

    • For household use;
    • Professional scope.

    When choosing a grinder, you should pay attention to the following technical characteristics:

    • Amplitude of the platform stroke. This is one of the main characteristics of grinders. Average vibration value. 2-3 mm. The higher the amplitude, the better the performance of the grinder, but the grinding becomes much coarser. That is, if you need a grinder for primary processing, pay attention to models with a high amplitude. For the finishing one. conversely, machines with an amplitude of 2 mm or less;
    • Sole size. PSHM and ESHM soles come in different sizes and shapes, although there are generally accepted standards. for eccentric diameter 122 and 150 mm, for PSHM 187×90, 115×230, 114×105 mm. Models with small soles will help when working in hard-to-reach places;
    • Speed ​​control. Thanks to this function, you can customize the operation of the machine. primary or finishing, as well as choose the optimal speed for grinding a particular material. For example, if we are sanding soft wood or plywood, then it is recommended to choose medium speed, and if we are sanding hard wood. high;
    • Power. The power consumption of the machines can range from 130 to 900 watts. But, as a rule, for most jobs, a power of 200-300 W is quite enough, because such models are light and compact, conveniently controlled, and work with them is more comfortable;
    • Fastening sanding paper. For a surface grinder, manufacturers have provided 2 types of fastening: a clip (similar to a regular latch with a spring, which is on most household-grade grinders) and Velcro (it is less hassle with it, since you do not have to cut the paper, it has a standard size, but the cost of such machines. like the consumable, above).
    • Additional handle. For PSHM and ESHM, the additional handle is either cast or removable. If it is removable, it reduces the size of the device and allows you to use the tool in one hand. Convenient when sanding small parts.

    Structural difference between the two machines

    Both machines are capable of delicately sanding the surface with emery cloths. In fact, they do the same work, but there is a difference between them. They differ in both form and principle of operation. In FSHM, the surface is often rectangular (but it can be deltoid and square). And the eccentric one. the sole is round. Therefore, depending on the complexity of the grinding work and the shape of the workpieces, you choose a machine with a comfortable sole shape. For example, steps or shelves are quietly sanded with PSHM, thanks to the angular sole, you can reach any corner.

    The eccentric machine is used for working with both flat surfaces and radii, as well as wood parts of various shapes. Orbital and eccentric grinders are used in construction workshops, in car services they perform not only finishing work for grinding wood, but are also convenient for all kinds of finishing work. But still, their main purpose is to ideally prepare the surface for painting or to give the details the required shape.

    In fact, these are two identical instruments, however, there is some difference. The surface grinder (vibration) grinder will cope with any surface: wood, plastic, metal, walls (plasterboard). But she does it a little roughly, unlike ESM. In turn, the orbital sander will perform this entire list of works more delicately due to the fact that it has the function of additional rotation, which helps to hide the traces of grinding.

    Summing up

    • Cleaner surface sanding;
    • Ability to grind curved surfaces;
    • Polishing capability.
    • Corner surfaces cannot be machined because the sole is round.
    • Effective sanding of wood, stone, primer, metal;
    • There is a wide selection of outsole sizes and shapes. rectangle or delta;
    • It copes well with corner surfaces, leaves no frayed areas at the edges, close to the edging, in narrow places.
    • Not such a high quality of grinding as that of ESHM. Often scratches wood.

    If we talk about surface cleaning, then for more delicate sanding it is better to choose and use eccentric machines. They do better in the finishing phase and are designed for perfect sanding. Although their performance is much lower than that of vibration ones. However, the orbital instrument is indispensable on volumetric surfaces with curved and profiled details.

    On a large area, it is better to use a vibratory sander, as its power and performance are much better. If you need to process a surface with corners, then you cannot do without a vibration machine. Thanks to the rectangular shape of the sole, corners and hard-to-reach places, as well as the edges of the product, are easily processed.