Machine for sharpening chains of chainsaws: types, selection criteria and features of operation


A chainsaw or chainsaw belongs to the category of chain saws equipped with an internal combustion engine. Such equipment needs proper operation and maintenance. For sharpening the chains of any chainsaw, a grinding machine is most often used.

Chainsaw sharpening machine

The acquisition of such machines becomes relevant during regular operation of the chainsaw, and also, if sharpening the saw chain with your own hands with the help of a file becomes a technically difficult process and takes a lot of time.

Manual and electric

All machines used for sharpening a chain are conventionally divided by functional characteristics:

  • amateur option;
  • professional option.

Besides, equipment is classified by automation indicators:

  • automatic devices are represented by the main element rotating with an electric motor. The equipment is adapted for dressing cutting teeth quickly and accurately. The presence of special skills is not required - it is enough to securely lock the chainsaw chain inside the holder and start the electric motor;
  • a mechanical apparatus can be either stationary or portable. The manual grinding process is carried out without a power source. The equipment can be operated in any place, and after work it is enough to blow out the chain links with a compressor and lower it into engine oil.

Sharpening the chain with a manual machine is a long process and requires skill and accuracy. From this point of view, it is best to choose high-quality automatic equipment. However, manually sharpened chains can last much longer.

Popular manufacturers

By design features, sharpening machines are a bit like a circular saw, but an abrasive element is located in place of the saw wheel. Professional equipment is produced by large companies such as Oregon and Stihl. The following sharpening machines have proven themselves best:

  • The Oregon-519789 model allows grinding a significant amount of material and is optimally suited for intensive use;
  • The Stihl Hos model is suitable for sharpening both chainsaw chains and various cutting surfaces, including garden tools. Not suitable for sharpening carbide metals. The absence of a rotary device allows you to set the slope in accordance with the manufacturer's recommendations;
  • Champion C-2000 model is characterized by high quality sharpening, as well as an optimal ratio of functionality with a low price. A distinctive feature is a significant number of revolutions, allowing fast and high-quality execution of work.

How to sharpen a chainsaw chain

Amateur sharpening equipment with excellent quality indicators is produced by the well-known company Sadko. The grinding wheel has a diameter of 10.5 cm with a rotation speed of 3.0-7.5 thousand revolutions per minute.

Determination of the need for sharpening and the consequences of working a worn chain

The parameters of efficiency, quality and safety of the chainsaw directly depend on the state of the cutting edge, which consists of teeth with complex configurations. The operation process is accompanied by blunting of the teeth, which negatively affects the speed and quality of work. The sharpening deadline cannot be standardized and set in advance, therefore, it is determined by the analysis of the following indicators:

  • uncomfortable feeling when doing work;
  • increase in time to complete work;
  • increase in the required efforts to feed the cutting tool;
  • the presence of vibration during operation and "walking" chainsaws in different directions;
  • visually noticeable wear of the teeth.

An important rule, if necessary, to correctly assess the condition of the chain and determine the sharpening period is to control the type of shavings obtained during operation of the tool. With well-sharpened teeth, the chips have a uniform appearance, large enough and closer to square shape. When the teeth wear, the chip becomes too small, almost dusty, and becomes darker.

How to make a do-it-yourself sharpening machine for a chainsaw chain

The saw headset is the most worn out part of any chainsaw model. Making a universal tool-grinding machine suitable for do-it-yourself chains is not too difficult. It is necessary to make a solid base, equipped with reliable clamps that match the size of the saw model. Then the movable part is attached, on which the working part is fixed in the form of the most common beam file or a manual disk.

A feature of the movable part in this design is the ability not only to perform horizontal movements, but also the ability to adjust the height of the working surface in a vertical plane. For maximum functionality, it is advisable to supplement the installation base with a ruler, with which you can control the height of the saw teeth. You can also equip such a home-made machine with economical and reliable LED lights.

Stihl chain sharpening machine: how it works

Chainsaw sharpening angles on the machine

The cutting edge is characterized by parameters such as thickness, width and angle of sharpening. The sharpening angles of some types of saw chains have partial differences, which depend on the conditions of use of the unit. Correctly select the angle of grinding allows the table below.

Pitch in mm

Thickness in mm

File Diameter

Sharpening angle

Tilt degree

Cutting depth mm

6,35

1,1-1,3

4

30

85

0,65

8,25

1,3

4,8

30

85

0,65

8,25

1,5

4,8

30

85

0,65

8,25

1,6

4,8

30

85

0,65

9,3

1,1-1,3

4

10-30

80-85

0,65

10,26

1,6

5,5

10-30

80-85

0,75

How to choose a professional sharpener

As modern professional equipment, machines with an automatic control type and special grinding wheels are most often considered. Quite often, this equipment option is equipped with all kinds of additional devices that can significantly expand the functionality and increase the efficiency of the work performed. For professional equipment, the following parameters are typical:

  • power indicators;
  • indicators of shaft rotation speed on the spindle;
  • noise level and unit weight.

The average cost of modern, high-quality and reliable automatic equipment in most cases depends on the technical characteristics of the device, as well as the pricing policy of the manufacturer. The most significant parameters are presented:

  • type of spindle;
  • a complete set of equipment;
  • power indicators of the installation;
  • the presence of additional features;
  • the presence of special devices.

Performance indicators are primarily affected by the level of shaft rotation speed. The ability to adjust the angle of sharpening minimizes the number of resetting the chain. The rotary head makes sharpening twice as fast, and the tilt limiter will not allow you to perform too deep a cut on the link.

The most popular, at present, are models from manufacturers such as Sthil, Makita, Oregon and Sadko. Household machines PRORAB, "Caliber-Master EZS-90-M", Champion C-2000, as well as professional equipment OREGON -542654 and OREGON-542654 are perfectly characterized.

Recommended use for reducing tooth wear.

Proper operation of the saw set contributes to significant wear of the teeth and allows you to save money on sharpening the working tool:

  • it is desirable to purchase a pair of chains, and their periodic replacement in places allows you to get uniform wear on all the headset elements of the headset and contributes to the fullest use of the factory resource;
  • systematically need to turn the tire in order to ensure uniform wear of the tire grooves and rollers in the bearing on the driven sprocket;
  • bearings on the drive and driven sprockets need to be lubricated periodically, which will help extend the operating life, and also make the job easier and more convenient;
  • for periodic editing of a blunt chain headset with slight signs of deformation, you can use a special file and a mandrel that sets the correct sharpening angle;
  • during sharpening, it is necessary to control the correct height of the limiter in the depth of cut;
  • regularly check the correctness of the chain tension, since a tightened or undershot headset can reduce the life of the device and cause a malfunction of the equipment;
  • after about a couple of minutes after starting work, check that you must check the chain tension and adjust this parameter of the saw headset.

Important regularly check the presence of oil in the aggregate tank, and also monitor the correct functioning of the oil pump. It is strictly forbidden to use mining in chainsaws. Also, tires not specified by the manufacturer must not be installed. A long tire increases the load on the saw and is able to quickly disable equipment.

How to make a chainsaw sharpening machine

Demand for high-quality and high-performance chainsaws in our country is growing steadily, so more and more consumers are thinking about the possibility of servicing the saw headset on their own. In order to accelerate the process of chain sharpening and compliance with all technological standards, it is recommended to use special modern machines, the cost of which is quite affordable even for the average consumer.



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