Machinery

Hand-held circular saw with the possibility of stationary installation: characteristics and rules of choice

June 2, 2020

If you have ever been to a sawmill or a regular carpentry workshop, then you probably noticed the presence of the machine there, which has a disk with teeth in the center. This is exactly what a stationary circular saw looks like. It is used to perform high-quality and accurate longitudinal sawing of wood of different densities.

Nowadays, many ordinary amateur builders are beginning to show interest in most special devices. Circular dust was not left out either. Not only the stationary model is available for sale, but also an ordinary hand-held circular saw. In this regard, it does not hurt to dwell on the specifics of the choice of circular saw, its varieties and main characteristics.

This tool is used to solve the same problem, for which an industrial version was created. We are talking about the implementation of longitudinal and transverse cuts in wood, drywall, plastic and other materials. Of course, for such work it is possible to apply also a usual electric jigsaw, but, given the high intensity of work and stringent requirements, which must correspond to the generated cut, much more logical to use a circular saw, which will be able to perfectly cope with this task.

It is quite easy to use, however, for a start it will not be superfluous to pay attention to its design. The role of the main unit in the device of this tool is performed by an electric motor, on the shaft of which is a saw blade. To eliminate the minimum of discomfort when working with such a tool, it has two handles, among which one has a start button, and thanks to the second, the user has the opportunity to fix the tool with the other hand. The disk has a protective cover, the presence of which prevents injuries to the operator. If necessary, the protective cover can be opened, gaining access to the saw blade, for which you need to press the start button.

The effect of this tool is as follows: to start the engine it is necessary to press the power button, then the saw blade starts spinning, as a result, the main task is performed - the material is cut.

Types of circular beers

There are several signs, on the basis of which it is possible to classify circular saws.

By scope

  1. Standard circular saw. With its help it is possible to carry out sawing of wood with a density in the range from 0 to 85 mm.
  2. Circular mini-saw. It has a high power rating, equal 400-800 W. This saw has a saw blade about the size 65 mm. The model is small in size and weight, which is approximately 2 kg. The propyl created with its help has a depth of about 16 mm. Based on the above, we can conclude, that this tool is suitable for sawing thin materials.
  3. Cordless circular saw. It has a lot in common with the standard modification except that, that the power source for it is a rechargeable battery. That explains it, that the saw shows not so much power and is offered at a higher price, although all this is offset by higher mobility. This tool is ideal for owners of suburban areas, who plan to build a cottage.
  4. Submersible saw. Most of it is used for sawing material from the inside. It will bring the greatest efficiency when there is a problem of cutting holes inside the material or making blanks of any material. The immersion mechanism allows it to cope with similar tasks, thanks to which the saw blade can move in the vertical plane.
  5. Diamond circular saw. The main working element is a diamond saw blade. With its help you can cut all kinds of artificial and natural stone, and in addition ceramics and tiles. Possibility of water supply allows to increase productivity of the tool. With this saw you can make a cut to a depth of 50 mm, as well as process the material at an angle.

Depending on the class:

  • household;
  • professional.

The difference between these models is their power. For household models, this parameter is in the range 1100-1800 W. Against the background of small dimensions, the weight of this saw is about 4-5 kg. It can be used with material of normal thickness - 50-55 mm The saw blade used in such modifications has a diameter value 160-200 mm

The power demonstrated by professional saws is in the range from 1800 W and above. They are quite significant, which is 8 kg and more. With their help it is possible to saw a bar, whose thickness does not exceed 70-85 mm Equipped with a disk size up to 250 mm. The quality demonstrated by these saws determines their higher price.

Main characteristics

Considering different models of circular saws for stationary installation, first of all it is necessary to pay attention to their working characteristics, which determine the effectiveness of their use in solving a problem.

Power

This parameter has a value in the range 400-2000 W. The exact indicator is determined by the class and scope of the tool. With increasing power, the productivity of the saw increases. This allows the user to spend less effort and time when sawing thick and dense material.

Disk speed

This parameter is directly affected by power. Increasing the speed of rotation allows you to make a more accurate cut. Keep that in mind, that when sawing plastic it is desirable to choose a low frequency of sawing, because otherwise you may face such an unpleasant phenomenon, as the melting of materials, caused by the high speed of rotation of the disk. The standard value of this parameter for professional models is the value 5000 rpm.

Depth of cut

The value of this parameter is in the range from 0 to 85 mm. The exact value is determined by the class of the saw. The saws offered today can provide different depths of cut, determined by engine power.

Cut tilt adjustment

Although this feature is mandatory for all modern circular beers, however, not all of them provide the ability to tilt the tool in both directions. The tilt angle is limited 45 degrees.

Required functions

Not to be mistaken with a choice of a manual circular saw, it is not superfluous to take into account the availability of such features.

  • Possibility of smooth start. I mean the state, at which the disk begins to reach maximum speed gradually. Due to this function it is possible to prevent the occurrence of high starting currents, which positively affects the service life of the engine.
  • Ability to maintain a pre-set speed at any load. If you have to work with high density material, then the engine in automatic mode begins to increase the power to maintain a predetermined number of revolutions of the disk.
  • Jam protection. Sliding clutches solve this problem best of all. If the drive still jams, the engine will run in the same mode, the disc will stop rotating. Although this option avoids kickback of the tool, yet it helps reduce its power, which reduces the likelihood of injury.
  • Engine overload protection. If the load on the engine has reached a peak level during operation, there is an automatic shutdown, which extends the life of the tool.
  • Fast disc braking function. If you disconnect the button, the disc will stop immediately, which will happen pretty quickly.
  • Ability to adjust the speed of the disk. Working with different materials, specialists have to choose their speed, to ensure the most productive sawing.
  • Ability to adjust the depth of cut. This option is provided in any modern model of circular saws, the presence of which simplifies the process of setting the exact value of the depth.
  • The presence of a wedge knife. This unit has space behind the saw blade, and he himself avoids its clamping by the workpiece.
  • Possibility to connect a vacuum cleaner. Any circular saw is equipped with this option. To take advantage of it, on the case of the tool the special plastic branch pipe is provided. Although when buying it does not hurt to make sure it is available.
  • The vast majority drank and has a laser pointer. The owner can benefit from it in that case, unless there are high requirements for the quality of the cut.
  • A useful option is an LED, which is able to provide better illumination of the work surface.

Choice tips

Considering different models of circular saws, keep that in mind, that this tool is a health hazard. For this reason, it is important to choose this tool with special care, given the following points.

Particular attention should be paid to the economic component. When choosing a dust should be taken in hand, try to understand, are you comfortable enough to hold it.

Don't think, that the same model can suit two people, because each of us has a different body structure, skills and habits. And it doesn't even play a big role here, the circular saw of the checked manufacturer is considered or not.

The material should also be considered, from which the protective cover is made. It must be of high strength, the ability to resist deformation in the event of a tool fall.

Test the regulators, located on the body of the model. Set several different angles. Find out, whether they are simply unscrewed and twisted.

Make sure, that you will not have difficulty getting to the carbon brushes, if you decide to replace them yourself.

Try to be very careful when studying the settings, as neglecting these points can further lead to serious injuries.

Tips for caring for the device

Do not forget, that you have to deal with a dangerous tool. Therefore, you need to be very vigilant and careful. Only in this case, you can not only do quality work, but also to protect your own and your family's health.

It is necessary to work with a circular saw only in protective clothing, gloves and goggles.

Before plugging the dust into the mains, check, that it is off.

If you need to turn the saw on or off, it is desirable to do it at "idle". If you do it under load, then this may reduce the life of the tool.

Watch it, so that the load does not exceed the allowable level. To do this, it is recommended to take breaks after each 15-20 minutes of work. This will prevent the engine from overheating.

Make sure before work, that the workpiece is securely fastened. Unacceptable, that she dangled and bent. Otherwise, it can be dangerous for you with serious consequences.

Watch it, so that there is no moisture near the workplace.

Conclusion

A hand-held circular saw can simplify many tasks, with which the homemaker has to face. However, only the right choice of this tool will simplify these operations. Considering different models of circular saws, it is necessary to pay attention not only to convenience in work, but also for operational safety. This will allow you to quickly and efficiently perform the task and avoid injury.