What Is The Difference Between A Circular Saw And A Circular Saw
Circular saws depending on the design
The mobility of the device and the size of the processed parts depend on the design:
Stationary. Such a saw is suitable for performing a large amount of repetitive work, for example, in a production plant where a large amount of lumber is constantly being processed. Such a tool is installed on a separate frame, has the appropriate dimensions and requires a separate place for installation, and in some cases even a room.
Desktop. A smaller version of a stationary circular saw. also installed on a stationary base but of a much smaller size. Suitable for large volumes of household work. for example, when building a house, bathhouse or similar structure.
Manual. A mobile device that can handle a part in multiple planes. It is used to work with different materials: wood, plastic, soft metals, etc. Of all types, it has the lowest power and requires periodic rest, but it is mainly used for such types of work where it is not critical.
What to choose: jigsaw or circular saw?
The volume and nature of the upcoming work will help to determine the choice of the preferred option. For example, if you are a novice carpenter or the volume of work does not involve much effort and a long time, then it will be enough to purchase a jigsaw. It can easily cope with cutting not only chipboard and plywood, but can also be used for sawing small boards.
For larger jobs, when it is supposed to cut for a long time and in large volumes, it is better to choose a circular saw. It can be used to cut sheet wood material, rather thick boards and bars.
A little about the manufacturers. Which saw blade is better.
Beware of counterfeit or low quality saw blades, it is not safe. So, if the quality does not inspire confidence, it is better to refuse the purchase. Keep in mind that a good disc cannot be cheap. The data on the case itself of high-quality copies is engraved with a laser and may even contain a barcode, and not painted with ordinary paint or made in the form of a sticker.
Each manufacturer in its own way denotes the gradation of quality on its saw headset. For example, in the form of several series of quality: a master, a pro and an expert from the firm “Praktika” the number of badges. stars on the packaging of the series standard, expert, etc. From Bosch.
|Site rating: budget manufacturers|
|1.||Attack||The Korean company has long established its products, which are often purchased even by professionals.|
|2.||Practice||Best value for money, huge assortment of sizes from different series.|
|3.||Bison||Another pretty good saw blade at an affordable price.|
If, for some reason, you cannot determine the size of the disc for a circular or miter saw, then you can choose it according to the firm and specific model of the tool in a separate article on our website.
Constant speed control system
The block for maintaining a given disk rotation speed under load is also called constant electronics. It is based on a controller that receives data on the engine speed. When the operator starts to drive the saw faster or it just hits a knot or a denser part of the workpiece, the engine speed decreases and the controller sends a signal to the electronics to increase power, which happens without operator intervention. The same, but exactly the opposite, occurs in the opposite case. when the rated speed is exceeded, the engine power decreases.
For the correct operation of this function, the circular saw motor must have a certain power reserve, which is not always possible on weak and even middle class devices. If the presence of this option is indicated on a budget saw, then you should pay attention to the ratio of the blade diameter and engine power.
If the simplest stabilizing device can equalize the rotational speed of the disk to only one given standard frequency, then the presence of a stabilizing mechanism on an engine with a smoothly varying number of revolutions is considered the highest class.
The presence of a large number of auxiliary and protective systems is due to the high risk of injury to the circular. They protect the tool from breakage, and the owner from injury, so it will be useful to find out which types of protections are installed on the saw by the manufacturer.
Spring loaded casing
For maximum protection of the user, the saw blade is hidden from him by covers. the main one at the top and spring-loaded at the bottom. It looks like the entire disc is hidden under the shrouds and, when turned on, rotates under them. When sawing of the workpiece begins, the spring-loaded casing engages on its edge and is taken away under the main one. When the saw is removed from the workpiece, the spring-loaded guard immediately returns to its place, protecting the user from possible contact with the rotating blade. Also, this design does not allow you to stumble or otherwise catch on the saw teeth, even when it is stopped and de-energized.
Sometimes this characteristic is confused with the diameter of the bore, but the latter is usually not so important and only shows whether a particular blade will fit the saw seat. The full diameter of the disc is fundamental for the circular saw as a whole, because it is for it that all other characteristics are selected.
The relationship here is very simple. the larger the saw blade diameter, the more powerful and with a higher torque value the engine should be. this affects the starting speed, smooth operation and a decrease in the likelihood of jamming. The more powerful the engine, the more difficult the filling must be to protect and stabilize the saw operation. in turn, all this leads to an increase in the weight, size and cost of the circular as a whole.
All these difficulties are necessary and important, since the larger the diameter of the disc, the thicker the part it can cut in one pass.
The advantages of the circular saw
- Long disk life
- Ideal for material handling where long slits or cross sections are required
- Ability to carry out large volumes of work without having to stop to cool down
- Significant increase in productivity due to the ability to mount the saw blade upward
Circular saws depending on the intensity of use
Here it is necessary to take into account the scope of the proposed work and the planned speed of its implementation. depending on this, the appropriate type of circular saw is selected:
Professional. The materials and design solutions used in such devices allow them to be used without interruption throughout the working day. Usually these are universal tools that are suitable for processing materials of various stiffness and sizes.
Mount to table
Or a workbench makes it possible to use a saw in the form of such a mini-machine, with which you can saw large-sized products, since this design allows two people to work.
Classification of circular saws
The classification of these devices is very arbitrary, therefore, in different x one can find different interpretations of it. for this, such characteristics as the maximum cutting depth and the power of the unit are used:
- Small circular saws are able to provide a cutting depth of not more than 40. 45 mm and have a power of up to 800 W. They can be used for sawing boards, finishing boards, chipboard, OSB, plywood. Such a tool is suitable for occasional use.
- Medium circular saws allow the use of cutting discs of a larger diameter, therefore the cutting depth increases to 50. 60 mm.
The power is also higher. 1200. 1400 W. These saws are used for cutting thick enough boards and even soft metals (when using special discs). These saws are considered better for household use.
This classification is for chain saws. The cordless tool is not included in it and is a separate type of circular saws, which at the moment constitutes all the huge competition with network models, due to the wide area of implementation and relevance when performing the following types of work:
- Work at height (when installing or repairing the roof);
- Work in places where electricity is not available;
- Working in tight spaces where it is awkward to pull the wire.
This allows virtually continuous use of the tool, since the battery charging time is reduced to half an hour.
Apart from everything else, this instrument is extremely comfortable and ergonomic.
Plunge-cut saws with guide rail: individual design
Immersion design is optional and not available in all versions. It is equipped with a special mechanism that allows you to adjust the cutting depth. Due to a rather complex precision mechanism, which should ensure the highest accuracy, that is, no backlash, the cost of such working equipment will be much more expensive.
Plunge saw Triton
Various functions provide this capability. Traditionally, this type of equipment is used for professional work, for this reason, the cost of the tool is quite high. There are offers from a number of manufacturers on the market, they provide both conventional configurations and specialized.
Circular aggressively fixed on the base
The circulating edition is distinguished by a stationary design, the mobile one has the most flexible manual control. Circular is aggressively fixed on the base. Submersible versions are also available. There is no significant difference in the devices, it consists only in mechanisms that facilitate the use of the tool or provide certain operating modes.
Individual professionals install the mundane and least expensive manual versions as circular.
Saw blade selection
When buying a saw blade, you need to be controlled by 3 parameters:
- Disc diameter in millimeters.
- Bore diameter.
- Number and shape of teeth.
Everything is clear with the first 2 features.
A disc larger than the size of the tool design can not be installed in the tool. You can put the smallest disc, but in this case, the cutting depth will greatly decrease and you can only saw thin workpieces.
The size of the bore should be equal to or slightly larger than the recommended one. As a last resort, you will have to use an insert ring.
As for the selection of a saw blade according to the shape of the teeth, this is a topic for a separate large article. In general terms, you will be able to focus on the following recommendations:
- Blades with a small number of large teeth are designed for fast rough cuts.
They are relatively cheaper but give a lot of chips.
What is the difference between a plunge-cut saw and a circular saw
Saw blade diameter
As well as power, this parameter is one of the important characteristics for electric circular saws.
The smallest possible value is a disc with a diameter of 140 mm.
The largest is 235 mm. Again, we are talking about models of the household class, therefore, as a professional line, it can have models with a huge diameter of saw blades.
The diameter is directly related to the power of the tool. As a rule, the higher the power, the larger the diameter of the disc the tool is equipped with.
Overview of our favorite plunge-cut saw models
Plunge-cut saws are available in a couple of versions allowing craftsmen to do a certain type of work with the greatest comfort and quality.
We are talking about circulating, disc modifications, as well as versions with a tire, which helps to make a very clear cut line.
Plunge saws overview
For almost all craftsmen, this digression does not represent enthusiasm, therefore we will immediately tell you what a conventional plunge-cut saw with a tire is and what functions are available in models available on the market.
The main functions of submersible models
The normal functions of a plunge-cut tool also imply the following features:
- Soft start system;
- Presetting the number of revolutions;
- Adjustable cutting angle;
- Precise setting of the cutting axis;
- Setting clear cut angles;
- Cutting depth stop.
In some versions, a protective structure against overturning is supplied when the model is designed and it is required to make a cut at a large cutting angle.
For example, the Makita plunge-cut saw is one of the best models on the market, has a versatile set of functions and is designed for professional use in adverse weather conditions.
Convenience of working with the bus
In this case, the main parameters are the depth of cut and power, expressed in the number of revolutions. The set comes with a certain number of discs that are used for cutting various types of saws, alloy, stone or the softest plastic. The trait of a particular model will mainly depend on the options.
Experienced professionals often use several types of tools for cutting blanks for manual work, and circular for cutting blanks on the base.
The correct selection of technical characteristics helps to complement the properties of the proposed products.
End versions are provided for precise cutting of boards, timber, as well as cutting workpieces at an angle, traditionally all saws have this function. Cutting power depends not only on the number of revolutions, but also on the properties of the discs included in the kit.
For these household products, the power values are in the range of 1300-2200 W. Professional models can also have high power, which is fully understandable, because in this case the emphasis is placed, above all, on an overestimated resource and increased productivity.