8 best random orbital sanders and recommendations for choosing

Eccentric sanders are designed to perform cleaning, grinding, polishing operations on wood, metal, concrete, and plastered surfaces. The principle of operation is based on giving the working body, the abrasive disc, rotational and reciprocating motion. Based on their functionality, engine power, and operating time, units are divided into household and professional.

Makita BO6030

Main characteristics:

• Power - 310 W;
• Speed ​​- 4000 - 10000 rpm;
• Oscillation frequency - up to 20,000 kol/min;
• Oscillation amplitude - 3 mm;
• Weight - 2.3 kg.

Housing and ergonomics . The dimensions of the grinder are 173x194 mm with a weight of 2.3 kg, but it is convenient for it to work in limited space in the lower position, such as when making furniture. The main handle has a rubber top pad to prevent slipping. To prevent accidental starting, there is a safety button on the side. The speed control is located within reach of the thumb, which is very convenient. For support with the second hand there is a mushroom-shaped handle at the end.

Functionality and capabilities . The most important feature of the sander is the low level of vibration, with a power of 310 W, which is confirmed by users in reviews. It will make your hands less tired. Double insulation is also used here, which increases the safety of live parts during long-term operation.

The manufacturer has equipped the tool with a grinding plate control system, which itself, regardless of the operator, monitors the impact of the abrasive sheet on the material and prevents the formation of dents.

Worktop Makita BO6030.

The presence of a speed control system ensures high-quality processing of various types of materials. Dust removal is carried out through a sanding plate and is very effective. The model implements a combination of oscillatory and rotational movements, which provides excellent grinding results.

Equipment . The model is equipped with a one-touch dust collector, a sanding disc and one sheet of sanding paper.

Pros of Makita BO6030

1. Little dust is generated even without a vacuum cleaner.
2. Can be used with one hand as vibration is very low.
3. Soles from other brands are suitable.
4. Fits comfortably in the hand.

Cons of Makita BO6030

1. Sold without case.
2. According to reviews, some lack power.
3. Short cord 2.5 m.

Best in the household series

Despite the shorter service life, the household series tool can process flat and curved surfaces. Perform rough and fine grinding of concrete, plaster, putty. Polish metal, plastic, glass, natural and artificial stone

KOLNER KRS 430 – the cheapest in its segment

The eccentric machine is used on wood, metal and plastic surfaces. Used for leveling plastered walls during home renovations. Polishes varnish and enamel coatings. Smooth speed control determines the required processing mode. Equipped with a dust removal system, which allows operations to be carried out indoors.

PROS

• Affordable price.
• Power.
• Low noise.
• Autonomous dust collector.

MINUSES

• Does not perform fine polishing of the car body.

PATRIOT OS-125 – the lightest

The grinder will perform the stages of rough and fine processing of flat and curved surfaces. The low weight of the tool allows you to spend more time working without fatigue during the processing of a part. An effective dust extraction system concentrates waste into a removable dust container. The abrasive wheels are fixed with Velcro, which ensures a quick change of consumables.

PROS

• Lightweight - the hand does not get tired longer.
• Optimal power for home repairs.
• Effective cooling system - the electric motor does not overheat.

MINUSES

• You have to hold the machine tighter - centrifugal forces tend to tear it out of your hands during the working process.

ENKOR MSHE-450/150E – the largest fluctuations

Works effectively during rough and medium grinding operations. Levels the plastered surface and smoothes the finishing putty. Removes old paintwork, rust, and scale from metal workpieces. The presence of an additional handle makes it easier to use.

PROS

• Increased diameter of the work plate.
• Long cord.
• Endurance.

MINUSES

• Ineffective dust collection system.
• The fixation of the sanding attachments fails quite quickly.

BOSCH PEX 300AE – the most productive

Tool for household use. Despite the classification, it allows dry sanding of wood, metal, and plastic. It is used for home repairs to remove old paint coatings, leveling plaster and putty. Dust emissions are mitigated by an effective microfiltration system.

PROS

• Allows you to perform a large amount of work.
• Doesn't get dusty.
• Equipped with an anti-vibration system.

MINUSES

• A bit noisy.
• Abrasive discs do not work evenly over the area.

ELITECH MSHE 0515E – the most powerful

The power of the electric motor is sufficient to perform operations such as grinding down convexities of plastered walls, smoothing the putty layer, and grinding the surface of ferrous and non-ferrous metals. Performs rough and finishing processing of wooden blanks. Connecting a vacuum cleaner allows you to keep your work area clean.

PROS

• Powerful electric motor.
• Work at a semi-professional level.
• Long cable.

MINUSES

• An extra handle is missing.

DeWALT DWE6423

Main characteristics:

• Power - 280 W;
• Speed ​​- 8000 - 12000 rpm;
• Oscillation amplitude - 2.6 mm;
• Weight - 1.28 kg.

Housing and ergonomics . The grinder has one handle completely covered with rubber, which prevents the tool from slipping out of sweaty hands. The start and lock keys are placed in the area of ​​the index and thumb. But the speed control wheel at the end of the handle cannot be reached with the same hand. But the device weighs only 1.3 kg, so the operator is less tired.

Functionality and capabilities . The model is capable of revolutions up to 12,000 per minute and oscillations of 24,000 times, which exceeds the parameters of the above-described model and helps to increase productivity. But the maximum circle diameter here is 125 mm, in which the car is inferior to the leader in the rating. The platform stroke size is 2.4 mm, promoting cleaner processing.

Work surface DeWALT DWE6423.

The model with a power of 280 W has a speed stabilization system, which prevents it from “sagging” when the operator presses hard on the tool. This functionality ensures uniform surface treatment and improves its quality. There is also provision for adjusting the rotation speed to select the desired rhythm for soft or hard materials, as well as a certain smoothness of the surface.

Equipment . The manufacturer has equipped the sander with one sheet of abrasive paper and a dust collector attached to a plastic thread.

Pros of DeWALT DWE6423

1. Light weight 1.3 kg.
2. Preset number of revolutions available.
3. Most of the body is rubberized.
4. Easy to control movements.

Cons of DeWALT DWE6423

1. Short power cable 2.5 m.
2. Inconvenient to carry and store without a case.
3. Quite loud work.

Makita BO5041

Main characteristics:

• Power - 300 W;
• Speed ​​- 4000 - 12000 rpm;
• Oscillation frequency - 8000 - 24000 kol/min;
• Oscillation amplitude - 2.8 mm;
• Weight - 1.4 kg.

Housing and ergonomics . The ergonomics of this sander is one of its main advantages. Here the manufacturer has provided a main handle with full finger crimping, as well as a mushroom-shaped additional handle. If desired, the operator can grasp the protruding middle rubberized part to apply pressure with one hand.

Functionality and capabilities . The device has a power of 300 W and a rotation speed of 12,000 rpm, so it is suitable for both coarse grinding and fine finishing.

Worktop Makita BO5041.

The maximum diameter of the installed circles is 125 mm, which is the average among professional-class machines. The weight of 1.4 kg does not tire your hands much.

Among the capabilities of the machine there is an adjustment of vibrations with a maximum of 24 thousand / min, thanks to which you can choose the desired mode for polishing wood or metal. There is also an additional button that blocks the start key, and this takes the load off the index finger during prolonged manipulations.

Equipment . Only a cloth dust container, equipped with a plastic cover on one side, is supplied with the product. You can attach it to the machine with one touch, which saves time on cleaning.

Pros of Makita BO5041

1. Convenient tool holding.
2. Three handles.
3. Easy access to the speed control wheel.
4. Relatively low vibration.

Cons of Makita BO5041

1. The log house takes a very long time to polish.
2. At speeds 1 and 2 it slows down - there is no support for speed under pressure.
3. Very dusty.

Makita BO5031

Main characteristics:

• Power - 300 W;
• Speed ​​- 4000 - 12000 rpm;
• Oscillation frequency - 4000 - 12000 kol/min;
• Oscillation amplitude - 2.8 mm;
• Weight - 1.3 kg.

Housing and ergonomics . This is one of the most compact orbital sanders. Its entire body consists of a sole and a mushroom-shaped handle rising from it. You can hold the machine with one or two hands, since the stand has a rubberized surface with pimples to increase grip on the hand.

Functionality and capabilities . The model has a power of 300 W and spins the disk axis up to 12 thousand rpm. At the same time, the model is capable of oscillating up to 24 thousand minutes, coping well with both hard and soft materials. Abrasive wheels of any grain size and size 125 mm in diameter can be easily purchased in a specialized store.

The attachments are attached to the grinder using Velcro. Locking the start button is easy since it is a toggle type and does not need to be held constantly, but if you drop the tool, it will continue to work.

Equipment . The set includes a cloth bag for collecting dust and one sanding sheet.

Pros of Makita BO5031

1. Light weight 1.3 kg.
2. Can be held with one or two hands.
3. Perfectly eliminates burrs and small differences in plane.

Cons of Makita BO5031

1. It is impossible to hold and regulate the speed with one hand.
2. If it falls out of your hands, it will not turn itself off - the start key is a toggle switch.
3. Some users complain about play in the bottom.

What is a random orbital sander?

Random orbital sanders are a new development in the field of tools. They have a random trajectory of movement around a circle. In 1976, the Festool company from Germany presented a device in which it was possible to achieve simultaneous rotational and reciprocating motion. After 6 years, the company released an industrial model of the grinder.

An eccentric type (orbital) grinder performs surface treatment with the same quality as a circumferential grinding device. But its performance is comparable to devices with reciprocating motion. The movement of the device circle occurs in a random order, the trajectories are not repeated. This design solution eliminates the need for constant grinding of the same places and the appearance of scratches on them.

The English name for this type of device is “Random Orbit Sander” - an orbital sander moving along a random path.

Metabo SXE 450 TurboTec

Main characteristics:

• Power - 350 W;
• Speed ​​- 4200 - 9200 rpm;
• Oscillation frequency - 8400 - 18400 kol/min;
• Oscillation amplitude - 6.2 mm;
• Weight - 2.2 kg.

Housing and ergonomics . This sander can be held with a choice of three handles, depending on the location of the surface being processed. For starting, there is a regular trigger with a lock on the side. You can adjust the speed even during work, since the wheel is placed under the thumb of your right hand.

Functionality and capabilities . This is another powerful sander, equipped with a working platform with a diameter of 150 mm, which allows you to cover a large area at a time. The 6.2 mm sole stroke also helps increase productivity, but in some cases it can affect the quality of processing.

Metabo SXE 450 TurboTec work surface.

The grinder fully justifies its name “Turbo” with a power of 350 W and the ability to spin the disc up to 13,100 rpm. This makes it possible to process the surface at 26,200 vibrations per minute and obtain a particularly smooth top layer.

Equipment . A dust collector is sold along with the machine, but it has a hard, rather than rag, body, so it will not wrinkle during operation. But this design increases the dimensions of the device.

Pros of Metabo SXE 450 TurboTec

1. Three handles.
2. Most of the body is covered with rubber pads.
3. There is a "Turbo" mode.
4. Removal of the filter in one touch thanks to the latch.
5. High quality build.
6. The sanding wheel is securely held on the sole until the very end of use.

Cons of Metabo SXE 450 TurboTec

1. Weighs 2.2 kg, so it is less convenient for working with weight.
2. It has large dimensions due to the plastic dust collector.

BOSCH GEX 125-1 AE

Main characteristics:

• Power - 250 W;
• Speed ​​- 7500 - 12000 rpm;
• Oscillation frequency - 15000 - 24000 kol/min;
• Oscillation amplitude - 2.5 mm;
• Weight - 1.3 kg.

Housing and ergonomics . The model weighs 1.3 kg and is equipped with a single elongated handle covered with a rubber pad. Reviews indicate that the machine does not slip out of your hands even in hot weather. The rotation is started using a toggle switch with a fixed position, without requiring you to keep the button pressed all the time. But the speed control wheel is located at the very back of the handle and is inconvenient for use during work.

Functionality and capabilities . This is a semi-professional grinder with a motor power of 250 W, producing up to 24,000 vibrations per minute, which can be set depending on the density of the surface being processed. The vibration amplitude is 2.5 mm, so vibration is felt little, which allows for very high-quality processing. The dust collector here is rigid and does not wrinkle, ensuring constant collection of small debris.

One of the advantages of an eccentric machine is the presence of an engine brake, which ensures an almost instantaneous stop of the rotation of the equipment. This increases the safety of work, as well as the transition from one surface to another.

Equipment . The manufacturer has equipped the model with one sanding sheet and a dust collector, so the tool is immediately ready for use.

Pros of BOSCH GEX 125-1 AE

1. One-touch filter release by rotating the block.
2. There is a quick stop of the engine.
3. There is no need to constantly hold down the start key.
4. Soft power cable.

Cons of BOSCH GEX 125-1 AE

1. Supplied in a cardboard box.
2. The speed control wheel is located behind the handle.
3. The body is larger due to the indestructible waste bin.

How to choose an orbital (eccentric type) sander

Each eccentric type tool (orbital sander) is manufactured under certain conditions. It has a certain set of technical characteristics and is designed for a certain cycle of work and load. To select the right grinding machine, you need to consider the following factors:

1. At what speed does the rotation occur and amplitude of movement. When cleaning and rough grinding are carried out, a speed of 10 thousand revolutions per minute is used, the amplitude of movement is large. This leads to an increase in productivity, but to a decrease in grinding quality. More refined grinding requires a speed of 2 to 4 thousand revolutions per minute. The amplitude of movement should be smaller. If you need a universal device, you can purchase and use an eccentric-type grinder, in which the speed is adjustable and the amplitude of movement reaches 2-3 mm.
2. What kind of performance does the device produce? This factor is influenced by the size of the working surface and the selected option. Large working surface and high speeds provide good performance. An entry-level eccentric grinder uses wheels with a diameter of 12.5 cm. Professional machines are equipped with wheels with a diameter of 15 cm.
3. Duration of the working cycle and the magnitude of the production load. In order for the grinding machine to work for a long time and be used throughout the entire shift and long months, parts and materials are carefully selected for its manufacture. This is the difference between amateur tools and professional grinders. A professional tool with the same technical characteristics can cost much more.
4. Under what conditions will the tool be used? To work in places with high humidity, heavy dust, and a high level of fire hazard, eccentric-type tools are carefully selected. For this purpose, there are grinding machines with an increased level of protection. Operational data are indicated in the product passport. In such conditions, you can use a pneumatic eccentric sander, which does not have electrics. It can be used for any operating conditions.

Metabo SXE 3150

Main characteristics:

• Power - 310 W;
• Speed ​​- 4000 - 12000 rpm;
• Oscillation amplitude - 3 mm;
• Weight - 1.6 kg.

Housing and ergonomics . The L-shaped body with rubber pads and two handles makes the grinder convenient for working in vertical and horizontal positions, and also prevents the tool from accidentally falling out of your hands. The dust collector is fixed with a rubber ring until it stops and is held securely in place. A long network cable of 4 m allows you to do without an extension cord in most cases.

Functionality and capabilities . The advantage of this model is its relatively light weight of 1.6 kg, taking into account the power of 310 W and a working platform with a diameter of 150 mm. Competitors with similar parameters weigh 2.2 kg or more, which makes the machine optimal for polishing vertical surfaces, during which it will be easier for you to hold it.

The sander operates with a 3mm pad stroke, making it suitable for finishing sanding and producing little vibration. Adjustable rotation speed up to 12,000 rpm allows you to work with materials of any density, selecting the desired amount of torque. The start button is fixed with an additional clamp on the side and does not need to be constantly held. If you accidentally drop the device, it will turn off on its own.

Equipment . The product comes with one circle to get you started and a fabric dust bag. There is also a hex key for removing the sole, so you can service the sander yourself.

Pros of Metabo SXE 3150

1. Long power cable 4 m.
2. Ergonomic grip.
3. Relatively light.
4. Long service life with daily use.

Cons of Metabo SXE 3150

1. No storage case.
2. There is no third handle.
3. The speed control wheel often touches involuntarily and switches.
4. The dustbin is soft and can easily become wrinkled if it gets caught on the edges of a part.

Rating of the best models

The most worthy entry-level eccentric grinding machines are presented in this section with a price range from 6 to 8 thousand rubles. The main sources of information are customer reviews, which they leave on forums or various sites, and partially selected from various rating categories. The review does not include pneumatic grinders, since working with such a tool requires a compressor with the appropriate properties.

Makita BO5031

Makita BO5031 is a modern orbital machine designed for domestic purposes. In the domestic market, the famous Japanese brand is popular because it is assembled in America and not in the Republic of China. The BO5031 drive has a working surface of 125 mm and a power of 300 W. Equipped with 8 holes for removing dust.

The tool is equipped with high-speed control of motor movement with an interval of 4 ÷ 12 revolutions per minute and a frequency of 8 – 24 thousand/min, a swing of 2.8 mm. The eccentric sander is almost silent, reliable, and is equipped with rubber pads located on the switch button and the body itself.

Makita BO5031

Advantages:

• speed control of engine movement;
• almost silent;
• reliable;
• supplemented with linings consisting of rubber material.

Flaws:

• poor quality dust collector;
• shortened wire;
• fast wear of the applied surface; to replace it, you need to spend about 1000 rubles.

Makita BO5030

The next disassembled Makita BO5030 grinding machine is the same BO5031, only without the easy start system and electric rotation controller. Other features of the instruments are completely the same. The equipment is used as an auxiliary device and for carpentry cleaning. Price differences in online stores between the first and second units range from 600 to 900 rubles.

The manufacturer suggests reading the instructions (suitable for all varieties), which outlines the plan for the corresponding modes and types of processing. According to the provided schedule, the grinding process occurs at 10 ÷ 12 thousand rotations per minute, and polishing at 4 – 6 thousand. The eccentric machine is supplied in two versions: packed in a box or in a case. In the second option there is a letter note.

Makita BO5030

Advantages:

• speed control of engine movement;
• silent;
• reliable;
• supplemented with overlays.

Flaws:

• There is no easy start system or electric rotation controller.

Interskol EShM -125/270E

The famous domestic brand produces sanding machines; they are produced in China. Manufacturers assemble cars that belong to the class of household devices, sold at an affordable price from 2,600 to 3,000 rubles. The machine is marked by the presence of an additional powerful 270 W mechanism, with a typical surface size of 125 mm.

It is characterized by equipping an electrical system with a switch that has 5 positions of speed increase and decrease of unit revolutions with control intervals of 5 - 12 thousand, and the oscillating frequency will be 10 - 24 thousand / min. with a sole stroke of 2.2 mm. The vast majority of reviews about this device are extremely good; users especially note the wear resistance of the sole.

Interskol EShM -125/270E

Advantages:

• the presence of an additional powerful mechanism;
• silent;
• reliable;
• supplemented with overlays.

Flaws:

• poorly thought out placement of the switch button;
• large vibration when turned on at maximum speed;
• shortened wire;
• wear resistance of the sole.

DeWALT DWE 6423

The presented model was produced at a Mexican plant where units from the well-known foreign company De WALT are assembled. The grinding device is equipped with a powerful 280 W motor and has a high-speed electric controller with a range of 8 - 12 thousand circles per minute. A platform with a diameter of 125 mm and a stroke amplitude of 2.4 mm. It is noted that there is a regulator for the number of rotations and the ability to auto-lock the power button.

Users leave only good reviews, unanimously noting the positive characteristics and low price of the grinder (just above 5,000 rubles).

DeWALT DWE 6423

Advantages:

• low price of the grinder;
• complete absence of vibration;
• excellent dust collector;
• extended cable;
• high quality components used during the assembly of the machine.

Flaws:

• no packing case.

Bison ZOSHM – 450-125

The planetary tool “Zubr” is marked by a low and affordable price, starting from 2700 – 2800 rubles. Equipped with a powerful 450 W motor, the control system is electronic with high-speed rotations. The working surface is 125 mm in size, the number of rotations per minute is 5 - 13 thousand with an amplitude of movement of 2 mm. What is unusual about the Zubr configuration is a system capable of removing dust deposits.

You should not pay attention to the low price, since buyers highlight only the good aspects of the device in question.

Bison ZOSHM – 450-125

Advantages:

• electronic system with high-speed rotations;
• a system capable of removing dust deposits.

Flaws:

• ill-conceived fastening of the dust collector.
• there are no special pads to prevent strong vibration of the device; poor-quality adhesive tape holding the part of the sole being adjusted, as a result of which, during strong rotation, in many cases, the polishing wheels get knocked off.

Bosch PEX 300 AE

The production company is based in Germany, but the concerns are located throughout Europe. The sector of application of this grinder is very wide. It allows you to process metals, wood, putty and paint coatings. The maximum power reaches 275 W. The diameter of the surface affected during operation is 130 mm. The vibration amplitude is about 4 mm, but this value may vary slightly.

On the Internet, the price starts from 5,000 and ends at 5,500 rubles. In this case, the buyer receives the goods in a case and with a complete set. Consumer reviews vary. Basically, there is a problem with the “plate”. According to the owners, the “plate” quickly wears out and becomes unusable.

Bosch PEX 300 AE

Advantages:

• wide range of applications;
• convenient to use;
• average price tag.

Flaws:

• the “plate” wears out quickly;
• Many people criticize the dust collector of this model, namely its poor quality assembly.

Metabo SXE 3150

For a relatively low price, the buyer receives a 310 W device and a platform with a diameter of 147 mm. The amplitude of the sole is not the highest, namely 3 mm, but for working on a hard, straight surface this will be enough.

If we talk about the strength of the Metabo SXE 3150, it is worth noting that the manufacturers did not save money and made the case from aluminum casting. The average price of this model is 7,700 rubles. This price is without case. For comfortable work, the kit includes a power cable, the length of which is 4.5 m. It is very difficult to find negative reviews about this grinder on the Internet. The only problem that is mentioned is the wear of the sole plate. Buyers note that at this price it is better to pay attention to another model.

Metabo SXE 3150

Advantages:

• durable aluminum housing;
• power cable included;
• average price tag.

Flaws:

• The “plate” wears out quickly.

Ryobi ROS300

The manufacturer itself positions its machine as professional. The construction is very strong. The best types of plastic were used in the manufacture of the case. Standard power is 300 W. But the stroke amplitude is really small - 2.3 mm. There is an electronic rotation speed control system with a range from 7 to 13 rpm.

The main advantage of the Ryobi ROS300 is its bagless dust collector. Most consumers praise this model, mentioning the main distinguishing qualities, namely durability and a dust removal system.

Ryobi ROS300

Advantages:

• strong body;
• electronic rotation speed control system;
• average price tag.

Flaws:

• poor location of the speed regulator control lever.

Wert EES 125DE

Among all its competitors, this grinder has good technical characteristics and an incredibly low price: from 1500 to 2000 rubles. The electric drive power is 355 W, and the diameter of the platform is 130 mm. The worst indicator is the stroke amplitude - 2 mm. Therefore, this model should be used only on a flat surface and should not be used for serious tasks. There are very few reviews about this model on the Internet, since the car is quite “young”. Many people note that for the price, the Wert EES 125DE has excellent features and performance.

Wert EES 125DE

Advantages:

• good technical characteristics
• low price.

Flaws:

• small stroke amplitude;
• incomprehensible design of the dust collector.

Black&Decker KA198

Black&Decker KA198 is a lightweight and simple model. The price is inexpensive, does not exceed 2500 rubles. Unlike its competitors, it has a low power (260 W), but a wide vibration amplitude - 3.1 mm. The standard sole diameter is 125 mm. It is possible to adjust the rotation speed up to 13,000 rpm. Almost all users note ease of use. This model is great for small tasks. But problems arise with wood, as the lack of power makes itself felt.

Many eccentric sanders have the ability to force the platform to rotate. But this function can rarely be used, because the number of revolutions sharply decreases. Many fans of this function choose the Makita BO6040 model.

Black&Decker KA198

Advantages:

• light and simple model;
• possibility of forced rotation of the platform.

Flaws:

• low power.

Hyundai O 350

Main characteristics:

• Power - 300 W;
• Speed ​​- 5000 - 12000 rpm;
• Oscillation frequency - 24,000 kol/min;
• Weight - 1.64 kg.

Housing and ergonomics . The grinder has a mushroom-shaped body and fits well in the hand, but the manufacturer was greedy with anti-slip pads - there are none here at all. The design is interesting because of its original slide-type start button, which has an exit from both sides of the housing. This allows you to fix the on position without holding the button and not confuse where to press the key. But the adjustment wheel is located under the palm and only gets in the way there.

Functionality and capabilities . The car is notable for its cost-to-performance ratio. The power of 300 W, causing 24,000 vibrations per minute, provides excellent performance, but the price of the product is two to three times cheaper than competitors.

The grinder is capable of rotating the equipment at a speed of 12 thousand rpm, so it is in no way inferior to more expensive analogues. The disc diameter of 125 mm is also similar to famous brands. But unlike most of them, this product comes with a 3-year warranty.

Equipment . The model comes in a cardboard package, which additionally contains a waste container and one grinding wheel.

Pros of Hyundai O 350

1. Light weight 1.4 kg.
2. Quite powerful.
3. Polishes quietly.
4. Fits comfortably in the hand.

Cons of Hyundai O 350

1. Inconvenient speed switch (hidden under the palm).
2. There are no rubber pads on the body.
3. If you drop it, it will continue to rotate the equipment.

Which eccentric sander is best to buy?

After considering the rating of the best models, we will look at the characteristics in order to understand which eccentric machine to look in the direction of when choosing.

How to determine the power of the grinder

This is one of the most important parameters affecting performance. The power of the grinder varies from 200 to 700 W. The higher the indicator, the more stable the rotation speed, despite the increasing resistance from friction. In weak models, the speed may drop when pressed. If you install wheels with coarse abrasive (60-80) on them, the machine will rotate them very tightly.

Therefore, for rough and fast grinding, models with a power of 300 W or more are needed. Even better if they have the function of maintaining constant speed under load. For fine grinding or polishing, where resistance is reduced, a 250 W grinder power is sufficient.

Why is rotation speed and oscillation frequency important?

These two parameters are interrelated. With one revolution of the disk, the drive axle makes two strokes, creating oscillation. As a result, the frequency of movement in amplitude will always be equal to double the speed of rotation of the disk. The rotation speed of the disk axis can be from 5000 to 13000 rpm. Accordingly, the oscillation frequency is 10-26 thousand/min.

The selection of speed is important for working with materials of different densities and achieving a certain processing result. The smoother the surface needs to be created, the higher the rotation speed of the equipment is needed. That is why an eccentric grinder can polish metal to a mirror shine, which can never be done with an angle grinder at 7000 rpm.

Speed ​​regulator.

When choosing a product, pay attention to the location of the speed controller so that during operation it does not accidentally touch, otherwise the settings will constantly be lost.

What you need to know about range of motion

The amplitude of movement of the grinder is the working stroke of the eccentric mechanism, which ranges from 2 to 7 mm. The value is permanent and cannot be changed. A small amplitude of 2-3 mm contributes to less stress on the hands, but the surface treatment process itself lasts longer. This is the best option for finishing or working with car bodies.

In tools with an amplitude of 5-7 mm, the grinding speed is much faster, but the abrasive wheel can leave rougher marks on the surface that will require additional cleaning. It is better to use such a machine in conjunction with another to increase productivity, or where high smoothness of parts is not required.

What does the diameter of the sole affect?

The size of the working sole to which the abrasive disc is attached can be from 75 to 180 mm. The larger it is, the more productive the device, since an increased area is captured at a time. But this characteristic is relevant only in combination with engine power, otherwise large equipment with a low-power motor will only slow down the process.

On the other hand, small soles are convenient to use in limited places, sanding narrow shelves, ledges or surfaces fenced with sides. In the case of processing parts with curved shapes and bends, it is more convenient to use small circles of 100-125 mm.

If you have to process a flat surface with large volumes, then choose models with soles of 150-180 mm.

Vibration level

The vibration of the grinder is formed as a result of the constant double movement of the disk along its own axis and additional vibration of the eccentric mechanism. The rattling may also increase as the wheel abrasive wears out or the manufacturer initially distributes grains incorrectly over its surface. All this causes imbalance and greatly affects operator fatigue.

This parameter is not indicated in the product characteristics, and you can feel it only by personally trying the grinder in action. In this regard, it is better to buy sanders in offline stores so that you can hold them in your hands and feel the impact. Vibration on the body is present in all representatives of this category of electrical equipment, but it can be tolerable or very strong.

To reduce the load on the operator’s hands, manufacturers use counterweights that adjust to changing balance, as well as damper inserts. The outside of the grinder is covered with rubber pads that reduce the transmission of vibrations.

Rubberized grinder handle.

Of course, cheap models will not have such protection, so if you will be working with power tools all day, you should not skimp on your purchase.

Dust removal

To remove dust from the processing site, the design of the sander sole provides holes where debris is drawn in from the air draft created. Accordingly, the abrasive wheels should have the same diameter and number of holes as those on the sole. Therefore, it is not recommended to buy non-original wheels (from other manufacturers).

Holes in the sander sole for dust removal.

Further along the channels, the dust enters the garbage bin. It can be fabric or plastic. The first one takes up less space, but can crumple and block the garbage exit channel.

Sander with fabric dust collector.

The second option is more reliable, but increases the size of the grinder and is inconvenient when manipulating in a limited space.

Grinder with plastic dust collector.

If you remove the garbage container, you can attach a hose from a vacuum cleaner to the existing pipe, which sucks out dust more effectively and makes the workplace cleaner.

Grinder with the ability to connect a vacuum cleaner.

Sander weight

The weight of the grinder can be from 1 to 3 kg. If you have to work only on horizontal surfaces, then the greater weight is a plus, since the device itself puts pressure on the equipment, and the operator can only guide the tool.

But when you often need to sand vertical or ceiling surfaces, the heavy weight will tire your hands faster and you will need regular breaks. In this regard, it is better to choose a grinder with a weight of 1-1.5 kg.

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The best eccentric sanders up to 5 t.r review + rating (02/06/2020)

A selection of eccentric grinders in the category up to five thousand rubles that you should pay attention to when choosing

Random orbital sander Makita BO 5031

Advantages:

Excellent ergonomics and balance, the vibration on the hand is comfortable, allowing you to work for a long time. Doesn't get too hot during prolonged use. It is possible to connect a vacuum cleaner, but you need an additional one. adapter. There is a speed regulator. Velcro (plate) is of normal quality. Lots of positive feedback.

Flaws:

The short cord is 2 m, the dust removal system is absolutely top-notch - the dust collector can fly off during operation, the dust collector is fabric, it retains only 85% of the dust, the rest of the dust makes its way out through the fabric.

Application:

Small works on wood and metal. Suitable for carpentry, sanding furniture panels, but not in commercial quantities. Good for finishing. Can be used for priming and car preparation.

Link to current price and technical specifications here

Eccentric sander Metabo FSX 200 Intec

Advantages:

The grinding machine comes in a case even in the basic configuration. The case is large, convenient, and allows you to store additional items. consumption together with the grinding machine. The eccentric is well balanced and fits comfortably in the hand. The vibration on the hand is comfortable. Good quality Velcro plate. It is possible to connect to a vacuum cleaner, but for this you need to buy an adapter. Not noisy and comfortable to work with. The built-in dust removal system works, but it is better to use it with a vacuum cleaner, then there will be almost no dust.

Flaws:

The engine is not designed for long-term operation and may overheat. Judging by the reviews, the continuous operating cycle is 15-25 minutes, which is quite sufficient for small jobs, but is not suitable for sanding square meters.

Application:

Manufacturing and restoration of wooden furniture. Carpentry work on wood. Good for finishing. Can be used for priming and car preparation. Suitable for carpentry, sanding furniture panels, but not in commercial quantities.

Link to current price and technical specifications here

Eccentric sander Bosch gex 125 AE

Advantages:

The cord is rubber, long, flexible. The eccentric fits comfortably in the hand, is well balanced, and is perfect for working with one hand. There is a speed control. The sound of operation is quite quiet. The performance is sufficient, the engine does not heat up. The built-in dust removal system works, but it is better to use it with a vacuum cleaner, then there will be almost no dust.

Flaws:

The key drawback is that the original “plate” quickly fails; over time, it must either be changed or another sticker be glued on. Grinding wheels with original Velcro quickly fly off to the side. Most likely, the original plate is not intended for rough work. There are small hooks on the plate, and the grinding wheel falls off. The problem is easily solved by changing the plate or sticking intermediate Velcro. If you solve the problem with the sole, the sanding machine will work perfectly

Application:

Manufacturing and restoration of wooden furniture. Carpentry work on wood. Good for finishing. Can be used for priming and car preparation. Suitable for carpentry, sanding furniture panels, but not in commercial quantities.

Link to current price and technical specifications

Random orbital sander Dewalt DWE6423

Advantages:

Convenient switch, during long work the hand does not get tired; the vibration on the hand is not strong. Acceptable noise level. The engine does not heat up during prolonged operation. You can connect the vacuum cleaner directly. Quick sole brake.

Flaws:

The dust collector is made of fabric, so the dust is not completely collected; some of the dust passes through the fabric into the work area. The key disadvantage is the expensive “plate” (sole). Moreover, it is difficult to buy a plate if you are not in Moscow, but in the regions. The dust removal channel is made in a complex manner, so it can often become clogged; ideally, it should be cleaned with a compressor.

Application:

Work with various types of wood, as well as polymer materials. Can be used for small paint and varnish applications. Suitable for polishing small objects made of metal and plastic. Suitable for carpentry, sanding furniture panels, but not in commercial quantities.

Link to current price and technical specifications

Eccentric grinder BISON ZOSHM-450-125

Advantages: Low cost. The label says 5 year warranty. Does not heat up during prolonged use. Good plastic and appearance. Speed ​​adjustment. Quick payback due to low price. The price in certain cases can cover the shortcomings.

Disadvantages: High weight due to the power of 450 W, so it is difficult to work with one hand. Vibration, poor balance due to high center of gravity. When working for a long time, your hands get tired from excessive vibration on the body, your hands go numb when working for more than 15 minutes. It is difficult to buy original soles, only through a service center. The dust bag falls out. At low speeds there is almost no grinding. Noisy.

Application:

For infrequent work. Not suitable for long-term and high-quality work.

Link to current price and technical specifications

Eccentric sander PATRIOT OS 125

Advantages: Low cost. The dust collector is made of plastic and does not fall out during operation. Speed ​​adjustment. Rubber wire. Quick payback due to low price. The price in certain cases can cover the shortcomings.

Disadvantages: Excessive vibration on hands during operation. Weak bearings can quickly fail. Small and inconvenient power button. The dust collector does not work well.

Application: For infrequent work. Not suitable for long-term and high-quality work.

Link to current price and technical specifications

Eccentric grinder Whirlwind EShM-125E

Advantages:

Low cost. Quick payback due to low price. The price in certain cases can cover the shortcomings.

Flaws:

Excessive vibration on hands during operation. After 15 minutes of work, my hands go numb. Short plastic cable. Noisy. Heavy. Do not connect to vacuum cleaners. It has its own fabric dust collector, allowing dust to pass through.

Application:

For infrequent work. Not suitable for long-term and high-quality work.

Link to technical specifications and current price

Our Rating:

Place No. 1: Bosch gex 125 AE eccentric sander because:

It has everything, balance, price, quality, availability of spare parts and grinding of plates, a plastic dust collector with a filter, the only significant drawback is a weak plate, but this can be easily compensated for by purchasing intermediate Velcro.

Place number 2: Random orbital sander Metabo FSX 200 Intec 609225500 because:

Balance, quality, ease of use. It has a reasonable price. The price is almost 20% lower than its main competitors, and it comes with a case. Second place only for the fact that there is no speed controller.

Place No. 3: Makita BO 5031 eccentric sander because:

Balance, price, quality, availability of spare parts and plate grinding, good reviews and technical characteristics. The drawback that immediately put this eccentric in third place is the fabric bag from the dust collector (which is outdated, now we need a plastic one with a filter), and it also falls out.

Place #4: Dewalt DWE6423 Random Orbital Sander because:

An excellent sanding machine; its main characteristics are not inferior to its competitors. The eccentrics are similar to each other and cost about the same. There is nothing to scold her for. But in the end, only fourth place for an expensive and hard-to-find “plate” (sole), and a confusing dust removal system.

Place No. 5: BISON ZOSHM-450-125, Whirlwind ESHM-125E, PATRIOT OS 125 because:

Fifth place is shared by all three grinding machines, because by and large there is no big difference between them! All are made almost according to the same pattern, and have the same problems during operation. You can buy such grinding machines, but you need to clearly understand a very simple fact: For infrequent work. Not suitable for long-term and high-quality work. They will grind, but you won’t be able to work comfortably with such grinding machines due to excessive vibration on your hands, so you shouldn’t expect quality from the work performed. But affordable price is the deciding factor.

Summary: We hope that our recommendations will help you make the right choice.

If someone knows the topic better or you have something to add, please comment, we will be glad to receive your feedback and advice.

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