First of all, it is necessary to determine that circular saw is suitable for a Specific job, as by the design of the tool there are:
- Stationary – really a system, which is a saw mounted on a framework. Requires free space from the workshop, and occasionally a separate room. Designed such a round saw to get permanent processing of lumber, and in large volumes.
- Table – the previous version in mini, installed on a separate workbench or desk, can also be used for sawing a massive volume of timber, by way of example, during the construction of the bath.
- Guide – a mobile tool, intended for processing workpieces in various planes. This is the most usual sort of circular saw, but the least powerful of this clarified. When working, it requires periodic break, and is utilized for sawing small amounts of material.
Hand-held instrument is more flexible than static variants. It costs much cheaper, but under specific conditions is able to cope with the same tasks, even with less efficacy. When choosing it, you ought to be guided by the criteria below.
Power
According to the type of power source, circular electrical saws are divided into 2 classes:
- Networked – that they operate from a domestic electric network of 220 V. If we talk about professional machines, they need a line of 380 V. The drawback of this connection option – the requirement to have an electricity grid at the place of work, in addition to some inconvenience of operation due to the wire.
- Vacuum – work in stand alone mode, even need the presence of a socket, but to control the battery, so their radius of performance is not constrained by anything. Based on battery capability, they could work on a single charge not more than 50 minutes.
The second choice makes sense to purchase only if for any reason it is impossible to use the mains saw. Type of work
Submersible saws come in handheld and stationary versions. Their difference is in the fact that the saw blade in the first position is over the workpiece, capable to descend to the centre. This allows you to start cutting off not with the border of the material, cut through holes.
Metal round saws are strong models which are equipped with more durable or abrasive disks. Capable of cutting sheet metal, plumbing, profiles. Some of them manage wood equally well.
The diameter of the disc directly depends upon the power of this saw’s electric engine. The more powerful the instrument, the bigger the disc it is in a position to rotate, the more secure the rotation frequency of the latter, the more the duration of constant operation, the less likely the wedge. Furthermore, powerful saws allow you to process more heavy material, but in addition they are heavier. So, for example, versions at 2 kW generally weigh 7 kg, whereas 1.2 kilowatt – about 4 kg.
According to the power gears can be broken up as follows:
The Way to Select a circular saw: professional hints
The larger the width of the disk, the more powerful the electric motor has to be, the thicker the workpieces the saw will use. Seating diameter is another parameter that determines whether a specific disk will match the chosen saw. The most common standards below would be 20 and 30 mm.
At greater rates, less torque is necessary for sawing, meaning dense material is simpler to manage. Bear in mind that using higher RPM the temperature of this substance at the area of touch with the saw increases, the identical plastic or laminate requires less RPM. Ideally, it’s far better to pick a saw with flexible rate.