Sanders Makita: features of belt and eccentric sanders. How to choose pneumatic and vibration machines for wood and concrete

Hammer PSM 300

Excellent vibration model Country: China Average price: 3249 rubles. Rating (2020): 5.0

A fairly budget product in comparison with Russian manufacturers and the best vibration grinder in the top. It performs all its functions perfectly. Cleans well at rates from 6,000 to 12,000 platform vibrations per minute. It is a compact household model with a weight of 1.5 kg. With its help, you can not only grind wood and metal, but also clean the surfaces of a car from rust. The built-in motor has a power of 300 W. The stroke rate control is electronic, which gives it an advantage over competitors and allows you to select the mode depending on the surface being processed.

The sanding paper is attached to the soleplate with clamps. The size of the working surface is 115x230 mm. The ergonomically shaped rubberized handle makes handling pleasant and comfortable. Of the additional functions, it is possible to note the fixation of the switch so that during the working process the device does not accidentally deactivate. To remove dust, you can use both a construction vacuum cleaner and a dust collector.

Features and scope

Today, grinding machines are used not only for grinding - they polish work surfaces, they are used in construction, metal rolling, car repairs not only by individuals, but also by large enterprises. At the same time, a different type of material can be processed with this technique, including wood, metal, plastic. Pneumatic grinders level the bases well, they clean the metal from the rust that appeared as a result of the coating operation.

Grinding machines can work even on natural and artificial stone and glass. In addition to the basic functions, these units can be used for smoothing welds and preparing the painted surface for polishing. When polishing, the disc is replaced with a felt disc.

Pneumatic units are preferred not only because of their explosion safety. In addition to the fact that the equipment is capable of working with hazardous dust in the atmosphere, it is electrically safe, which is especially convenient when working on a conveyor. In addition, air grinders can be operated continuously. This allows you to increase the efficiency of work and eliminate the forced downtime for its cooling.

The noise of pneumatic machines is stronger than electric analogs. Another difference from electrical equipment is their lower weight (about one and a half times), which is compensated by the greater weight of the hose.

BOSCH PBS 75 AE

LSHM Bosch PBS 75 AE 06032A1120 has a high efficiency, and is used for grinding surfaces of various materials. The tool starts smoothly thanks to the inrush current limiting function. The possibility of adjusting the belt movement within the range of 200-350 m / min allows you to make precise settings for cleaning or grinding a certain type of surface. The device has a lever mechanism for securing the tape, which allows you to quickly and conveniently replace it. The presence of a microfiltration system reduces dust formation. Convenient removable handle allows you to comfortably perform the necessary work.

Specifications:

type - tape;
power - 750 W;
abrasive belt width - 75 mm;
abrasive belt length - 533 mm;
Max. movement speed - 350 m / min;
device operation - from the network;
machine weight - 3.5 kg;
connection cable length - 3000 mm;
complete set - dust collector and tape;
warranty - 2 years.

pros

the presence of a microfiltration system;
reliability;
the ability to perform large volumes of work without interruption;
quality of grinding;
comfortable handle.

Minuses

high price;
great weight.

Advantages and disadvantages

Reliable Japanese Makita equipment is distinguished by such a set of obvious advantages as:

wide price and model range - you can choose equipment for any budget and task;

light weight and compact dimensions - only professional models are large-sized, hand tools are easy to use and store;
reliable components make it possible to ensure the longest possible operation of the equipment without damage or replacement;
the presence of dust collectors in the kit - it is possible to ensure the collection of the generated waste during the grinding process;
adjustable position of the handles - you can hold the unit with convenience, choose a comfortable way of fixing the tool in the palm of your hand;
the choice of networked and autonomous models of equipment with a battery.

Not without flaws. Among them, consumers note the small length of the cord in some models of hand tools. Newer models of equipment may have problems with the lapping of the switch. At first, its course can hardly be called smooth. The lack of speed control in a number of models can also be called a disadvantage that does not significantly affect the functioning of the equipment.

Grinding machines - what are they?

A grinder is a power tool used to give wood, metal, stone or plastic parts a smooth surface by sanding or polishing them. Processing occurs as a result of the oscillatory or rotational movement of the grinding plate, which has the shape of a disk or a belt.

According to the principle of operation and design features, the grinding tool is divided into the following types:

vibrating;
eccentric (orbital);
brush;
deltoid;
tape;
angular.

Eccentric, deltoid and belt sander differ only in the shape of the working surface. In eccentric equipment, the grinding plate is in the form of a disc, which contacts the workpiece with its entire plane.

Grinder at work

The deltoid typewriter has a working plate in the shape of a triangle, most often of a fairly compact size. These units are used for grinding hard-to-reach surfaces; their use is impractical for large workpieces.

The most popular are tape machines, the grinding surface of which is rectangular. Unlike eccentric units, in which the disk makes rotational movements, the tape is fixed on two rollers and during processing is pulled between them. Belt sanders can be large enough and have a large working surface area, which allows them to be used for working with large parts.

An angle grinder, in fact, is an ordinary grinder, complete with a grinding wheel, which can be replaced with a regular cutting wheel for wood or metal. A vibration machine, unlike other types of devices, polishes the surface due to low-amplitude vibration vibrations, the number of which can reach 20 thousand per minute. In terms of productivity, along with belt units, it is the preferred choice for large surfaces or industrial applications.

The brush grinder is very different from the types of devices we have considered, in which a cylindrical brush is used as a working surface instead of an abrasive cloth. This is a good option for sanding wood, but it may not be powerful enough for metalworking.

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Let's sum up

We would like to have a sander at home wood car?

Of course! Not useful

Sanders are used to prepare wood for finishing. In some cases, they are also used for sanding and polishing paintwork. There are many types and options for the design of the grinding tool.

The most popular are:

The grinding process is accompanied by a significant emission of dust, therefore, protective equipment must be used. Change the abrasive only after the machine has come to a complete stop. Before starting work, you must carefully study the user manual and comply with all manufacturer's requirements. This will increase the service life of the tool and get the highest quality result.