First of all, it is necessary to determine that circular saw is Appropriate for a particular job, depending on the design of the tool there are:

• Stationary – actually a machine, which will be a saw mounted on a framework. Requires free space from the workshop, and at times a separate room. Made such a circular saw for permanent processing of lumber, and in massive volumes.
• Table – the previous version in miniature, installed on another workbench or desk, can also be employed for sawing a massive volume of timber, by way of instance, during the construction of the bath.
• Guide – a mobile instrument, designed for moyakovka.ru processing workpieces in distinct planes. Here is the most frequent sort of circular saw, however the strongest of this described. After working, it requires periodic remainder, and can be used for sawing small quantities of substance.

Hand-held instrument is much more flexible than static variants. It costs considerably more economical, but under specific conditions is able to cope with the very same actions, though with less efficacy. When picking it, you ought to be guided by the criteria below.

Power

According to the type of energy supply, circular electrical saws are divided into two classes:

• Networked – they work out of a national electric system of 220 V. If we talk about professional machines, then they require a lineup of 380 V. The disadvantage of the connection alternative – the necessity to have a power grid in the place of work, in addition to a hassle of operation because of the cable.
• Vacuum – operate in stand alone mode, additionally require the existence of a socket, but to charge the battery, so their radius of performance isn’t constrained by anything. Based on battery capacity, they could work on a single charge not more than 50 minutes.

The second choice is sensible to buy only if for any reason it is impossible to utilize the mains viewed. Form of work

Submersible saws – come in handheld and stationary versions. Their difference is in the fact that the saw blade at the first position is within the workpiece, capable to descend into its own centre. This allows you to begin cutting with the border of the material, cut through holes.

Metal circular saws are strong models that are equipped with more durable or abrasive discs. Capable of cutting sheet metal, pipes, profiles. A number of them handle wood equally well.

The diameter of the disc directly is based on the power of the saw’s electrical engine. The stronger the instrument, the larger the disc it’s ready to rotate, the more stable the rotation frequency of the latter, the more the length of constant operation, the less probable the wedge. Furthermore, powerful saws enable you to process denser material, but they also are heavier. Thus, for instance, models at 2 kW generally weigh 7 kg, whereas 1.2 kilowatt – approximately 4 kg.

According to the energy gears can be broken as follows:

• As much as 0.8 kilowatt – low-powered tool for working with small workpieces.
• 0,8-1,2 kilowatt – the instrument of ordinary power, is able to cope with many household tasks.
• More than 1,2 kilowatt – gears for professional usage.

How to choose a circular saw: professional hints

The bigger the width of the disc, the stronger the electrical motor must function, the thicker the workpieces the saw can use. Seating diameter is just another parameter that determines if a particular disk will fit the chosen saw. The most frequent criteria below would be 20 and 30 mm.

At greater speeds, less torque is needed for sawing, which means dense material is simpler to manage. Keep in mind that using higher RPM the warmth of the substance at the place of touch with the saw increases, exactly the identical laminate or plastic requires less RPM. Ideally, it is better to select a saw with adjustable speed.