Grinder eccentric which best

Eccentric sander what to choose

What is the difference between vibratory and eccentric sander ? Ribbon is. And for what work they are designed, and which is better where skins round or rectangular?

2Serdjio. “round or rectangular?”. All kinds of pelts are important, all kinds of pelts are needed. (smiley face). ) Imho. I like more and more “triangular”.All manufacturers have machines with such a plate (iron, triangle). It is more convenient to sand in awkward places and t.I have both a flat and an “iron.”. Sometimes I catch myself thinking that I could have done with one triangular.Only, of course, in a “brandier” way. like the delta from Milwaukee or Festool, it’s one and the same machine.

As I understand it vibrating and eccentric and delto sanding machines work on the same principle of vibration, oscillatory motion.

And what better to buy in a home workshop, for dacha ?

I like AEG’s round one better. Saw it the other day in Leroy.

And another question tape grinder is much faster ? I’m right? These machines are designed for a finer and finishing?

2Serdjio. the same principle works Flat sanding. and “triangles”,the only difference is the shape of the sole, and EDM has more and rotational movement on the “ambiguous” ampl-de. LSM-is more for a coarse (more) removal. but you can put and very fine (the grain) ribbon, and grind at least until the shine. Optimal (imho) to have three machines: LSHM, ESHM and DELTA (Treg).Festul has a machine which combines both psm and eshm into one.Naz. Rotex-90. ( precisely (numbers-letters) look at the site

grinder, eccentric, which, best

BlackDecker has an interesting model, a universal sander. but it’s a little under a hundred bucks

Can you tell me if the Cheshire should always rotate, or. The question is this: bought some cheap eccentric sander for one-time work in general. I glued the sandpaper on, turned it on. The sanding wheel rotates, but only as long as I hold the machine in the air. As soon as I start sanding, the rotary motion stops and there’s only vibration. At the machine is not a lot of pressure, and just the weight can stop the rotation by grabbing the wheel with his bare hand. That’s how it’s supposed to be? !

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Stavrast. Thank you for your speedy response. And then what is the fundamental difference between the CMM and vibratory sander, if the CMM still does not rotate? I somehow thought it was supposed to rotate.

Clown wrote : the rotary motion stops and only vibration remains. Do not force the machine, and just stop the rotation of the weight can be grabbed with his bare hand. It’s supposed to? !

no. most likely the screw that secures the platter to the eccentric is loose or has come loose.

Clown wrote : I thought for some reason it was supposed to rotate.

JAZZ wrote : it’s holding the eccentric to the eccentric

The eccentric on the bearing. it slips and the platter doesn’t rotate. if you’re not afraid of the warranty. unscrew the four screws that hold the platform to the eccentric. Remove the platform, there is a screw in the center. it needs to be tightened if it does not help. Try putting a thin washer underneath.

JAZZ. Thanks! I think I will not take it apart and tighten it, especially since I have already sanded everything I want with an angle grinder. I’ll take it back to the store and let them figure out why it won’t turn.

Clown wrote : Stavrast, thanks for the prompt reply. And then what is the fundamental difference between the CMM and the vibratory sander, if the CMM does not rotate all the same? For some reason I thought it was supposed to rotate.

No problem. Rather said above rotation should be, but slow. You can also stop it with your hand. There is no direct drive from the rotation, it is due to oscillation.

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Stavrast wrote : Or rather said above rotation should be, but slow.

Allow me to add. Trouble with these spins.

Serdjio wrote: What is the difference between a vibratory and eccentric sander ? There is a belt sander. And for what kind of work are they intended, and which is better where the skins are round or rectangular?

helmutivan. Yes, really trouble with rotation.

How to choose a grinder

To begin with, consider a list of criteria that should be followed when selecting a grinder for use at home or in your own small shop.

Professional or household?

We have already hinted above that this review will be about affordable machines, which automatically means the household or, at most, semi-professional models. Here we explain briefly why this is so.

Professional power tools practically by all technical characteristics are incommensurably higher than any household. Such models are designed for continuous operation over several shifts. It’s not just the endurance of the moving parts that counts, but also the reliability of the auxiliary components, units and parts. All these factors make such high demands on professional power tools that, by definition, even a limited-function model cannot be mid-priced.

That is why, if you are not planning to open a construction firm, and you need a grinder from time to time, buy a professional unit makes no sense. It’s too expensive and impractical. A good household grinder may well cope with the needs of a small private workshop.

Angle grinders (angle grinders)

The most common, almost “popular” form factor grinders are well known even to children “angle grinders”, that is, angle grinders. By the way, many people mistakenly believe that by the word “angle” they mean the purpose for processing angles, when in fact they mean the design feature. the working shaft is at right angles to the plane of the motor.

It so happens that machines of this type in the vast majority of cases are bought and used for cutting, not for sanding. It’s also too big a niche to consider on par with other form factors. That is why in this rating we will consider only those machines that are not used in any other way than for grinding, and the “angle grinder” will consider a separate topic.

Belt grinders

Belt grinders use, as it is easy to guess, an abrasive belt glued into a ring as a working surface. Depending on the model, they vary in width from 65 to 110 mm. Two end rollers turn the belt. Speed of movement. 150 to 400 metres per minute.

These machines are most often used for rough pretreatment of flat surfaces. They are extensively used in interior finishing, where thick layers of material must be removed quickly and effortlessly, or to sand away filler areas. This form factor can also handle door and window components in the production process. In rare cases, they are used in the intermediate stages of the car painting process.

Parkside Cordless eccentric grinder 20V TEAM PAEXS-LI A1

The high productivity of the draw frames has a downside. roughness of processing. They leave behind noticeable machining traces. abrasions, scratches, indentations. Therefore, for the final finish, it is necessary to use another type of machine.

Vibrating grinders

Machines of this type are also called flat sanding precisely because of the shape of the working surface and the nature of processing. The main working part is the soft rectangular soleplate. When you turn on the soleplate begins to make reciprocating movements with a small amplitude, but with great speed, due to which the effect is achieved.

Here is observed a direct dependence of speed of surface processing and its quality on the amplitude of the sole movement. The greater the amplitude, the higher the material removal rate, but at the same time the quality decreases. Therefore, if it is highly desirable to perform pre-finishing and finishing sanding with the same machine, look out for models that allow you to adjust the speed and/or amplitude. If you intend to work hard-to-reach places, you need a delta sander with a soleplate in the form of an iron.

Flat grinders can use different methods of fastening of abrasive sheets. with clamping clamps or with “velcro. Clamping machines are often cheaper and generally more versatile due to the simplified selection and availability of consumables. As for the “Velcro”. This attachment is more convenient. Many models support both types of attachment, and in our rating we will consider a few examples.

Eccentric grinders

Finally, the eccentric machines are special grinders in which the reciprocating moment is complemented by a circular rotation. This adds to the efficiency of the device and makes them almost indispensable for machining curved and profiled surfaces. These are the machines most often used for superfine polishing.

The eccentric machines differ in terms of disc speed and oscillation amplitude. The dependence of machining speed and quality on the aplitude is exactly the same as in flat grinders. Replaceable abrasive sheets are fastened by clamping or the same “Velcro”.

Dust extraction

Whatever type of grinder you look at buying, you should always pay attention to the availability of a complete system of dust removal. Most often household machines are equipped with compact filter bags-dust collectors, but it is also desirable that the design of the unit has the possibility to connect to an external vacuum cleaner. Under no circumstances should you neglect high-quality dust extraction or, all the more so, to save on this issue, as the “fog”, which raises the grinder most often detrimental to health.

If you intend to work on plastic surfaces, the best approach is an eccentric machine, or a vibrating machine with a slow travel speed of the platform. The same machines are good for metal, but the grit size should be much higher. For fine polishing, fiber or fan discs are used instead of abrasive.


Body and ergonomics. The grinder has a handle fully covered with rubber, which prevents the tool from slipping out of sweaty hands. Start and lock buttons are in the index finger and thumb area. But the RPM adjustment wheel at the end of the handle is impossible to reach with the same hand. But the machine weighs only 1.3 kg, so the operator is less fatigued.

Features and functions. Capable of rotating up to 12,000 rpm and oscillating 24,000 times, which exceeds the parameters of the model described above and contributes to improved productivity. But the maximum diameter of the circle is 125 mm, where the machine is inferior to the leader of the rating. The stroke of the platform is 2.4 mm, contributing to cleaner handling.

Which Electric Sander to Use?

Model with 280 W power has a system of speed stabilization, which prevents “loses” them when the operator presses hard on the tool. This functionality ensures a uniform surface treatment and increases its quality. Here is also provided for adjustment of speed to select the desired rhythm for soft or hard materials, as well as a certain smoothness of the surface.

Accessories. The manufacturer has endowed the sander with one sheet of abrasive paper and a dust collector that attaches on a plastic thread.

  • Lightweight 1.3 kg.
  • Preset number of revolutions is available.
  • Most of the body is rubberized.
  • Easy to control movement.
grinder, eccentric, which, best

What do you need an angle grinder for??

The angle grinder is the ideal tool for a variety of sanding, brushing, polishing, and rust removal jobs. It is good for deburring stone and metal.

With this tool, you can accomplish:

  • surface leveling;
  • elimination of height differences;
  • Removing dimples and knots;
  • Giving the metal a “mirror” shine;
  • rust removal;
  • Removing old paint coatings;
  • preparation of the surface for painting;
  • polishing the surface after painting;

Belt sander

In belt sander tooling, abrasive belt glued in the form of an endless ring, moves in one direction on two end rollers, one leading, the second rotates freely. Linear grinding and high abrasive speed provide high productivity, but also require increased control over the grinding process. LSM weighs up to 7 kg, and electric motor power varies from 500 to 1500 watts.

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, smoothing putty. Due to the high productivity, large amount of material is quickly removed, and in combination with coarse grit abrasive, the belt sander can function as an electric sander. Grinding quality is not the best indicator of this tool, often there are sinks and scratches during processing. Effective for sanding laminated boards and machining convex-shaped parts. There are models with the ability to work upside down, stationary.

This tool is not suitable for fine sanding and requires special control at work. Can leave depressions in the material, and because of the specific sole, band grinders do not grind in the corners. High noise level and frequent clogging of the dust outlet are disadvantages of this tool.

Electric grinder

There are band grinders for special purposes, the so-called band file or electric file. Often used for cleaning welds and sanding materials in hard-to-reach places. Only certain sanding accessories in widths from 9 to 30 mm are suitable for power sanders. Such belt sander weighs much lighter than conventional. 1-2 kg.

grinder, eccentric, which, best

What grinder is better to choose. an eccentric or a vibratory grinder

Buy a vibratory sander or eccentric for home, depends on the objectives. Both devices allow you to remove old paint coatings, process automobile body, polish furniture, doors and other workpieces.

In this case, surface models are often used for rough skinning of wide surfaces. The degree of polishing accuracy depends to a large extent on the abrasive fitted to the sole plate. But in general, machines with a rectangular platform provide a sloppy rough cleaning. With their help it is convenient to remove old coatings, so then achieve perfect smoothness with other devices.

Rotary sander with a rounded head provides a finer polish. They are used more often for finishing work, when the material should not be simply scraped off, but made as smooth as possible.

Better eccentric sander or vibratory. also depends on the characteristics of the workpiece to be polished. Flat-grinding models with a flat rectangular sole are well suited for processing shelves, steps, window frames and door leaves.

If the surface is curved or has decorative elements, it is more convenient to use an orbital sander for polishing. Rounded sole allows easy processing of radiuses and small irregular-shaped parts.

The scope of application of flat grinders in general is narrower than that of orbital

If you need a grinding machine for professional use, it is better to buy models of both types at the same time. In this case, the devices can be used alternately. for rough sanding and finishing sanding.

Features and selection criteria eccentric grinders

Grinder eccentric type has a design that produces simultaneously circular and reciprocating motion.

This eliminates the need for repeated treatment in the same place, which eliminates the appearance of scratches on the surface.

grinder, eccentric, which, best

When buying an eccentric grinder, you need to pay attention to these parameters:

  • Speed of rotation and amplitude of motion.The optimal speed is 2-4 thousand revolutions per minute. The amplitude should be less than. This achieves a fine sanding. If grinding rough, suitable device with a speed of about 10 thousand revolutions per minute.
  • Performance.When selecting this parameter, it is worth considering the area and the option selected. Large work surfaces and high speeds result in high productivity.
  • Duty cycle time.For a long machine life, choose models with high quality parts and materials.
  • Operating conditions.If the working place is characterized by excessive dust, high humidity, high fire rate, it is better to choose a model with an increased level of protection.

Note! Pneumatic grinders are regarded as universal. They can operate in any environment.

Top 10 best eccentric wood grinders

In the review of the best models of eccentric grinders, you can note the budget and expensive units. Rating is represented by durable and easy-to-use tools, designed for the treatment of flat and convex surfaces.

Einhell PXC TE-RS

Cordless sander maintains a high maximum speed, the diameter of the nozzle is 125 mm. Circle moves with an amplitude of 2 mm, which provides a slow but quality surface treatment.