Hybrid assistant carpenter // Eccentric sander: characteristics, choice of details and technical descriptions of popular brands

Grinding surfaces - one of the most frequently performed operations in the implementation of carpentry work or major home repairs. To date for its implementation uses a variety of electro-mechanical tools, but there is one that is a kind of hybrid of all the others. It Sander, which will be discussed in the article.

Photo orbital sander

hybrid opportunities

Why am I the orbital machine called hybrid power tools? Before answering this question, I want to consider the scheme of its devices:

structure diagram of eccentric machines

From the scheme we can see that the device has a round working surface capable of rotating during operation, which in this case is equipped with more and eccentric.

Thus, we can talk about the merger of the two kinds of electric tools:

• "Grinder", Which also happens circular rotation of the polishing disk. Due to this "kin" eccentric machine excellently cope with the removal of the old finish layer or significant surface defects;

The "Bulgarian" drive also spins in a circle

• "Vibratsionki"Performing polishing by the transmission of vibrations to the set nazhdachku or grid. This feature allows you to circle "orbitalki" does not take place in the course of their work the same way, due to which the polishing is much better.

The "spirit" of the vibration machine is also present in the eccentric

So, in fact, the tool in question can also be called vibrating "grinder" or rotating "vibratsionkoy".

Scheme worktop stroke eccentric sander

select the Features

How to choose the most suitable model for their needs? To do this, you need to understand the characteristics of an individual of the species:

The diameter of the working surface

• 115 and 125 mm - excellent options for grinding curved and concave surface types, the processing of all possible curvatures;

Orbital sander with a working surface of 125 mm diameter

• 150 mm - much better suitable for large flat areas, excellent cope with the removal of old paint, rust and sweep alignment layer bonding agents.

The use of eccentric sander in the service station

If you will be especially a lot of work, I recommend to opt for a machine with two handles. This will allow you to greatly save their own strength and easier manipulation of the appliance.

Orbital sander with a working surface diameter of 150 mm and two handles

The amplitude of the committed work surface course

It is very important to understand the simple relationship: the higher the amplitude of oscillation of the sole during operation of the device, the higher the performance, but inferior processing quality.

According to this indicator eccentric machines are divided into three groups:

• Up to 3 mm - data "orbitalki" best cope with the fine and finish grinding;
• 4-5 mm - an excellent job of interim work;

If you are not able to buy for each type of work separate sander, I recommend to buy the one that has the parameter of equals four millimeters. Such unit is good enough to cope with the intermediate and finish grinding.

Tool with an amplitude of 4 mm is practically universal

• 6-7 mm - come to the rescue in case of need to perform a quick sweep of the rough. On sale are rare.

class

Eccentric grinders can be:

1. professional. These are real "monsters" of electrical engineering, capable of long-term continuous operation.

They are characterized by the following features:

• The engines are a full-fledged heavy rotors, filled with thermal grease;
• All metal parts of the housing are made of stainless steel or other durable material not less instead of crumbling under the slightest impact silumin;
• Quality bearings are protected from construction dust;
• The wires are sufficiently thick cross section to not worry about the possibility of a short circuit at the slightest overheating;
• The plastic casing has a high heat-resistant and shock-resistant characteristics;

But the price of such machines considerable;

By purchasing an orbital sander professional class, consider proposals only trusted brand with a good reputation. Little-known one-day firms can put in their offspring is not something that indicates their accompanying instruction. Also, be sure to pay attention to the gravity of the tool: a complete engine weighs a lot.

"Makita" - a time-tested Japanese brand

1. Household. If you need resurfacing from time to time, then spend money on expensive professional equipment makes no sense, and you can do household series. But to work in such an instrument should be very careful, carefully protecting it against overload, which can be fatal.

Orbital sander «EINHELL» - a good inexpensive option for home work on wood or plaster

When buying a home model is recommended to pay attention to the availability of service in your city. If there is no one in the "perfect" day, when failure happens, it turns out that spare parts to get it is simply impossible. To professional brand devices is not the case, they always Stalling, but expensive.

The presence of additional functions

Some of the following functions are already considered more fundamental than optional, but I still mention them too, because sometimes you can meet really "naked" polishers:

• power control. Not always need full speed, which is able to make the sole in the process. Somewhere for a more gentle treatment is sometimes necessary to reduce them;

EXAMPLE speed control arrangement for an eccentric sander housing

• Regulator oscillation frequency. The number of vibrations carried out soles per minute, also affects the sensitivity of the operation being performed, so that the control over it is quite useful;
• Brakes Service parts. It is a kind of seal that stops rotation of the wheel at idle. Why such a device is needed? In order not to damage the surface to be treated randomly touch retractable toward the sander;
• Vibronakladka on the handle. You will appreciate this addition when you have to grind for a long time. The vibration device is very painful affects the hands and quenching its lining helps to keep them healthy;

Vibronakladki for damping vibration tool

• Dust extraction. This may be a special bag or socket for connecting a vacuum cleaner. Do not neglect this trifle. Eyes-and you are breathing organs over, you can protect the respirator and goggles, but the dust cloud at the same time still be seen to interfere and settle throughout the room. So it is better that all waste from the grinding gathered in one place, no one and nothing interfering;

Pouch for the collection of building dust

About repair

As soon as you notice any malfunction of your "orbitalki" immediately carry it to a service workshop. Why own hands to fix the tool I advise you not to?

The following reasons:

1. The complexity of disassembly-assembly. Tangle of wires, brushes, seals, engine pieces, and the power button to make out in search of damage is not easy, and even harder to collect back. In the end, you will still incur the master has a bag with all the above, thereby complicating his work and increasing the cost of repairs;

Alone dismantling repairs were finished

1. The lack of the necessary equipment. Besides screwdriver you still need at least a multimeter to find the electrical failure of character and a special bearing puller, if the problem is in them. Typically, these tools at hand is not for everyone;

Examples for bearing pullers

1. No warranty for installation. There is treachery: even if you have coped with all the tribulations themselves, for the new part you will still have to go to a service center. But her warranty ends at exactly the moment when you personally install it in the machine.

shopping

So, what can be seen today at the shop of eccentric sanders? In fact, a large part of the range is similar to exactly the same as it was ten years ago.

Sverhtehnologichny breakthroughs in this area was observed.

• «Skil 7420LA» Model:

«Skil 7420LA» model sample

• «Bort BES-430" model:

Sample model «Bort BES-430»

• «Ryobi 3001144» Model:

«Ryobi 3001144" model sample

• "DIOLD MB 0.5" Model:

The sample model "DIOLD MB 0.5"

• «BOSCH GEX 125-1 AE Professional» Model:

Sample model «BOSCH GEX 125-1 AE Professional»

• «Hitachi SV13YA» Model:

«Hitachi SV13YA» model sample

• «Makita BO5041» Model:

«Makita BO5041» model sample

• «DeWALT D26410» Model:

«DeWALT D26410» model sample

• «BOSCH GEX 150 TURBO» Model:

Sample model «BOSCH GEX 150 TURBO»

conclusion

You are familiar with what is an eccentric grinder, you should pay attention when it is selected and what models fill the shelves today. Videos in this article contains additional materials, and any questions on the topic, you can ask in the comments.

Random Orbit Sanders makes grinding work fast and easy