Variable speed eccentric sander

Bosch PEX 300 AE

Criteria for choosing an orbital (eccentric) sander

Each eccentric orbital sander is designed to work under specific conditions, has specific processing characteristics and can only withstand the cyclic loads specified by the manufacturer. Therefore, in order to choose the right grinder for yourself, you must be guided by the following criteria:

  • Rotational speed and vibration amplitude. For cleaning and coarse grinding, rotation speeds of 10,000 rpm or more are used. with a large vibration amplitude. This increases productivity, but affects the surface quality. Fine grinding is performed at speeds of 2000 ÷ 4000 rpm, while it is desirable to have a smaller eccentric amplitude. As a universal, you can use an eccentric sander with speed control and an amplitude of 2-3 mm.
  • Performance. This parameter depends entirely on the size of the sole and the selected processing modes. The larger the abrasive area and the rotation speed, the higher the productivity. In entry-level eccentric sanders, grinding wheels with a diameter of 125 mm are used, and the diameters of wheels for professional general purpose grinders are usually 150 mm..
  • Duty cycle and production load. The ability of a grinder to perform work in a long cycle without interruption and to operate full work shifts for many months depends on the components and materials used in its manufacture. This is the main difference between household and professional power tools. For this reason, the latter can be several times more expensive than its amateur counterpart, which has similar power and engine speed..
  • Operating conditions. If it is intended to carry out grinding work in special conditions (high humidity, fire hazard, high dust content, etc.), the choice of a suitable eccentric sander requires special attention. Manufacturers produce power tools with increased security and indicate the parameters of its operation in the passports. One of the options for such cases is the eccentric air grinder, which has no electrical parts and can work in almost any conditions..

Grinder eccentric rating

Makita BO5030

“Interskol” EShM-125 / 270E

Grinding machines of the famous Russian brand “Interskol” are manufactured in China. The eccentric grinder of this brand EShM-125 / 270E belongs to the class of household devices and has a very affordable price: from 2500 to 2900 rubles. Its drive power is 270 W, the platform diameter is standard 125 mm. EShM-125 / 270E is equipped with an electronic system with a five-position switch for the engine speed with an adjustment interval of 5-12 thousand rpm, while the vibration frequency is 10-24 thousand per minute, and the sole stroke is 2.2 mm. User reviews of this eccentric sander are overwhelmingly positive, especially the wear-resistant outsole. Among the disadvantages are most often the inconvenient location of the switch, a short cord, as well as vibration at high speeds..

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RYOBI ROS300

The manufacturer classifies its ROS300 eccentric sander as a professional one, pointing out at the same time especially durable types of plastic used for the manufacture of the body and support structure. RYOBI ROS300 power – 300 W, working surface diameter – 125 mm, stroke amplitude – 2.4 mm. The grinder has an electronic speed control system with a range of 7-12 thousand rpm. One of its features is the bagless cyclone dust collector. This eccentric sander is supplied with five different grit abrasive sheets. Reviews about her are overwhelmingly positive. Especially often mentioned are the successful dust extraction system, the long cord, as well as the quality of materials and workmanship. Some users write about the unsuccessful location of the speed control wheel (during operation it gets under the finger).

Orbital Sander Basics | Beginner Tool

“Zubr” ZOSHM-450-125

Makita BO5031

Makita BO5031 belongs to the class of advanced household orbital eccentric sanders. For the Russian market, this model of the famous Japanese brand “Makita” is unique in its own way: it is assembled not in China, but in the United States. The drive power of the BO5031 is 300 W, the working surface has a diameter of 125 mm and eight holes for dust extraction. The grinder is equipped with an engine speed controller in the range of 4 ÷ 12 thousand rpm. at a vibration frequency from 8 to 24 thousand per minute with an amplitude of 2.8 mm. Among the advantages of this eccentric sander, users note its reliability, low noise level, comfortable rubberized pads on the body and switch. And among the shortcomings, first of all, an unsuccessful dust collector, a short cord and a quick wear of the sole lining are mentioned (a new one costs about 1000 rubles).

What are the grinding machines

  • Vibration sander. A tool that, due to its low-amplitude vibration movements, copes well with polishing surfaces after plaster, parts made of wood and various metals. The sole can be rectangular, square or triangular in shape. The choice of the shape of the sole depends on the surface to be treated.
  • Belt sander. Such a power tool is perfect for construction. A consumable for it will be a tape rotating on rollers. Most often used in woodworking.
  • Angle Grinder. The people habitually call them – an angle grinder. This is the most common type of power tool (along with such as drills, hammer drills, screwdrivers), often used for stripping, grinding, cutting workpieces from metal, stone, tiles.
  • Polishing machine. Power tools in this category may look like an angle grinder. Due to a significant reduction in spindle speed, the tool has received a different field of application and has become indispensable in auto repair shops or any other places where they want to achieve high quality polishing of parts..
  • Dewalt eccentric sander. Power tools that combine vibratory and rotary movements. Used for grinding metal and wood parts in construction.
  • Straight grinder. It is used with various consumables and is very effective in hard-to-reach places (round shape).
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Grinders DeWalt (Devolt)

The grinder is a hand-held power tool used for finishing various materials and surfaces. In this catalog you have the opportunity to purchase a grinding tool for all occasions.

When choosing a tool, you should especially pay attention to the characteristics:

  • disc diameter (angle grinders)
  • power
  • smooth start-up – especially important with large angle grinders
  • speed control – especially if it will be used for grinding
  • vibration amplitude – for vibrating grinders

The dewalt cordless angle grinder is incredibly handy. Can be used in various places regardless of power supply.

In this section, a professional tool is presented to you for purchase. It is designed to work continuously for 6-8 hours a day every day. You also have the opportunity to find out all the technical characteristics and the scope of delivery, and if you have any questions, our specialists will be happy to advise you and select the most suitable option. Buying a power tool from us means getting a solution to all production issues.

Principle of operation

The sole of the eccentric sander simultaneously performs two types of movement: rotational and reciprocating. If the rotary movement allows for fine grinding without scratches, then the additional movement makes the work more productive and high-quality..

Random orbital sander

  • Cleanliness in the workplace without a vacuum cleaner thanks to the cyclonic dust extraction system

Power: 300W

Disc diameter: 125mm

Ability to connect to a vacuum cleaner: yes

Soft start: no

Oscillation amplitude: 2.4 mm

Speed: 7000-13000 rpm

  • Smooth start-up – neat start of work and reduced brush wear

Power: 300W

Disc diameter: 125mm

Ability to connect to a vacuum cleaner: yes

Soft start: yes

Oscillation amplitude: 2.4 mm

Speed: 7000-12000 rpm

  • Cleanliness in the workplace without a vacuum cleaner thanks to the cyclonic dust extraction system

Power: 300W

Disc diameter: 125mm

Ability to connect to a vacuum cleaner: yes

Soft start: no

Oscillation amplitude: 2.4 mm

Speed: 7000-13000 rpm

Power: 450W

Disc diameter: 125mm

speed, eccentric, sander

Ability to connect to a vacuum cleaner: no

Soft start: no

Amplitude of vibration: 2 mm

Speed: 6000-12000 rpm

  • Ergonomic textured body

Power: 280W

speed, eccentric, sander

Disc diameter: 125mm

Ability to connect to a vacuum cleaner: yes

Soft start: no

Oscillation amplitude: 2.6mm

Speed: 8000-12000 rpm

Power: 240W

Disc diameter: 125mm

Ability to connect to a vacuum cleaner: yes

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Soft start: no

Amplitude of vibration: 2 mm

Speed: 12000 rpm

Power: 710 W

speed, eccentric, sander

Disc diameter: 180mm

Ability to connect to a vacuum cleaner: yes

Soft start: no

Speed: 1000-3200 rpm

Power: 450W

Disc diameter: 125mm

Ability to connect to a vacuum cleaner: yes

Soft start: yes

Amplitude of vibration: 2 mm

Speed: 5000-13000 rpm

Power: 450W

Disc diameter: 125mm

Ability to connect to a vacuum cleaner: no

Soft start: no

  • 20 sanding sheets included – enough for the first time!

Power: 310 W

Disc diameter: 125mm

Ability to connect to a vacuum cleaner: yes

The Difference between Orbital Sander & Random Orbit Sander | Bosch Power Tools Sanding Solutions

Soft start: no

Amplitude of vibration: 2.4 mm

Speed: 7000-13000 rpm

Orbital sanders are a versatile tool for cleaning, grinding, polishing wood and metal surfaces. They can also handle plastic, glass, stone, putty and varnished surfaces. Eccentric sanders have the widest range of applications, but unlike other sanders, they are especially good at machining curved surfaces. In addition, they give a high finishing speed..

Device

The eccentric grinders have a circular platform – a support plate. Replaceable sanding sheets are attached to the support plate, which are made of corundum, felt, fleece, sponge, fur.

There are two ways to attach sanding sheets:

  • The clamp is the most economical, the machines themselves and their consumables are cheaper..
  • With Velcro – quick and easy sheet change.

For dust extraction, the eccentric sander can be equipped with a dust extraction unit via the soleplate or a device for connecting an external vacuum cleaner.

Specifications

  • Power. Orbital sanders are available in different power ratings from 150W to 1000W. For cleaning and rough grinding, it is better to choose eccentric sanders with a power of 400 watts or more. The highest power (2100 W) is the wet sander.
  • Disc diameter. One size fits all – 125 mm. Ideal for fine grinding as they have an optimal vibration amplitude. There are models with smaller (80mm) and larger diameters. It should be borne in mind that machines with a large plate diameter are heavier, therefore, it is less convenient to work with them..
  • Speed. Determines the performance of the tool. For convenient operation, there are soft start systems and a gradual set of speed, which are equipped with some models. The presence of a speed controller allows you to get the best processing results.

On the site you can find the best and highest quality eccentric grinders from leading manufacturers: both foreign and domestic. We offer our customers low prices, professional service, fast delivery and a wide range of products. Buying from us is simple, convenient and profitable!