Random Orbital Sanders for Wood: TOP 2021 – Setafi

The eccentric sander allows you to work on the surface without leaving any marks. All because of the special trajectory of the grinding nozzle. In order for an uninformed buyer to be able to choose a machine for their needs, we have prepared an article in which we will tell about the intricacies of choice, the features of the technical filling, and also present our rating of wood grinders for visibility. Let's get started!

Overview of grinders - what to look for

Before viewing the grinder rating, we will talk a little about the characteristics in order to understand what we take in the store. Nobody wants to get a "pig in a poke"?

What kind of grinding machine power do we need

The main parameter that directly indicates the performance of the device. Good grinders have a power of 200 to 700 watts. The higher the indicator, the higher the speed at which the wood will be polished. For budget devices, the speed can drop sharply if you press the button to failure. And if you put not ordinary discs, but abrasives, then the device may not be able to cope with such a load at all.

Therefore, for a rough finish, take machines from 300 W, no less. Additionally, the presence of the function of stabilization of revolutions under load is useful. For small jobs or fine grinding, a 250 W machine is sufficient.

Why is it worth looking at the speed of oscillation and rotation at the same time?

These points are inextricably linked. With one revolution of the circle, 2 is created on the gearbox and oscillation is caused. As a result, the movement in amplitude will always be 2 times greater than the torque of the nozzle. The rotation speed of the latter in devices from the rating of eccentric wood sanders varies between 5-13 thousand rpm. rpm

The choice of the number of revolutions affects what kind of surface you are going to or will ever be processing. The smoother and smoother you want the result, the faster the speed should be. You will never polish a metal part with a grinder, because its speed is not as high as that of an eccentric sander.

Also see where the device has rotation adjustment. It is important that it is in the most convenient place for you and does not catch on during operation.

Points important to understand about amplitude

The amplitude of the grinder is the working stroke of the mechanics of the device, which can vary within 2-7 mm. This setting is permanent and cannot be changed. With a small amplitude, the hand gets tired less, but more time is needed for polishing. This is a good device for finishing the surface to perfect condition.

In devices with an indicator of 5-7 mm, grinding is many times faster. But there is also a drawback - the circle leaves noticeable traces that need to be passed with a finer sandpaper. For maximum results and the availability of additional funds, we strongly recommend that you purchase two options at once. You will receive not only full-fledged wood processing, but also the pleasure of the work done and the result.

What is the diameter of the sole and why is it needed?

The size of the working part (sole) to which the polishing nozzle is mounted can be from 70 to 180 mm. The larger this parameter, the wider you will capture the processing plane. It is important that the characteristic works well only with powerful devices. For if you put a wide platform on a weak engine, then you get an apparatus no faster than a grinder.

The advantage of a narrow sole is open opportunities for working in tight spaces, grinding corners and small details. If there are circles or bends on the plane - take circles of about 100-120 mm. For large-scale structures, a platform of 150-180 mm is suitable.

Why a machine with a lot of vibration is bad

The vibration of the device is obtained due to the double movement of the disk and the transmission of torque, the oscillation of the eccentric. Another rattle can be from worn abrasive, which was used unevenly or was not installed correctly. All this has a very strong effect on fatigue during grinding.

You are unlikely to see these moments in the parameters of the product, so you can only feel it in action. We recommend buying devices from the rating of grinders only in an offline store. You can hold the device and even turn it on without buying it yet. Just do not worry right away - vibration is inherent in all models without exception. It's just that her strength can be different.

In order to relieve stress from the hands of the master, additional counterweights are inserted into the devices, as well as damper inserts. Outside, the device is covered with rubber inserts to increase the tenacity to the hands and reduce the level of fatigue after grinding.

Wood grinder - rating of the best

Our rating of eccentric sanders includes only those models that have proven themselves with customer reviews on the Internet. Only not those who buy for 10 rubles, but real users.

Makita BO5031

Pros: Comfortable level of vibration, you can work for a long time without rest, excellent ergonomics of the device. Doesn't get hot at max RPM. It is also possible to connect a vacuum cleaner, but it is worth buying an adapter. The device has a built-in speed controller.

Cons: Short wire - 2 m; the dust removal system works at 70-75% - sometimes there are problems with dust removal, and you have to clean everything yourself.

Application: Used for grinding wood and metal. Perfectly proved in household joiner's affairs. You can prime and finish the car, do the finishing polishing of furniture.

Metabo FSX 200

Why in the ranking of grinders: The device has a large and convenient case. The eccentric is stabilized, the vibration is at an optimal level. You can also connect a vacuum cleaner through an adapter, it does not make loud sounds. The dust extraction system also works well.