What is a circular saw for?

Table Saw vs Track Saw vs Circular Saw! Which Should You Buy?

What are?

Cordless models operate on battery power and are slightly inferior in power to networked models. One battery charge lasts about 50 minutes, which forces you to interrupt the process and waste time charging. A way out of the situation can be a replaceable battery, which allows you to continue working for a while. The battery voltage is typically 36 V and the engine speed ranges from 2500 to 6300 rpm depending on the model. The cutting depth for such devices varies from 38 to 60 mm.

Another criterion for differentiation is the size and weight of the models. On this basis, mini-saws, middle-class models and heavy units are distinguished. Weight indicators directly depend on the engine power and the type of power supply of the device. The more powerful the product, the more it weighs.

Device

The plunge-cut circular saw is slightly different in structure from a conventional circular tool and is equipped with a specialized unit. Thus, the accuracy of cutting and the absence of backlash provides a complex precision mechanism, which significantly increases the cost of the tool. The rest of the saw design is similar to the basic models. The device consists of a sturdy case, where an electric motor is located, during the operation of which the torque is transmitted to a special shaft. A locking device is located on this shaft, which reliably holds the working disc and does not allow it to move relative to the axis of the shaft.

The saw blade, when in a non-working position, is under the protective cover and is located in the same plane with the mounting base. This design allows for more accurate positioning of the tool on the working surface compared to conventional circular models. All controls are located on one panel, which makes working with the device very convenient and understandable.

Some models of plunge-cut saws are equipped with two discs at once, which allows you to cut a board of any width, performing two cuts at once in one pass.

Without exception, all devices are equipped with a spring-loaded bottom base, due to which, if the cutting disc hits a nail or other third-party element, the device will be stopped in time. The features of the plunge-cut saws include the function of tilting the disc, which is especially convenient when it is necessary to manufacture products of complex configuration.

In addition to the standard design and traditional set of functions, many modern devices often have additional options. They do not fundamentally affect the operation of the saw, however, they make its use more convenient and safe. Among them are backlighting, a speed controller, rulers of different sizes and a chip sucker that forcibly removes sawn products.

Advantages and disadvantages

  • The ability to perform longitudinal and transverse cuts significantly expands the scope of use of such models and allows you to perform complex curved cuts. The only limitation when cutting non-standard shapes is the rounding radius. For plunge-cut saws, it should not be too small.
  • Due to the most accurate positioning of the cutting blade relative to the working surface, the material is cut with pinpoint accuracy, which no other type of saw can do.
  • Due to the peculiarities of the location of the working disc, the plunge saw can work directly near the wall, which simple circulars cannot boast of.
  • By equipping all plunge-cut models with a finishing disc, the cuts are completely smooth and neat. Burrs, roughness and small cracks are excluded.
  • Thanks to the equipment of many models with a guide rail, the geometry of the formed cut is not disturbed and the wood is cut as accurately as possible. In addition, to prevent lateral play of the saw blade, the tool design provides for the presence of special eccentrics.
  • The cleanliness of the workplace when working with a plunge saw is due to the presence of a chip sucker, which instantly draws in the formed sawdust and fine wood dust.
  • The high power of 1000 W and more allows cutting wood pieces with a thickness of 6 centimeters or more. In addition, using a plunge model, it is possible to saw plastic and plexiglass, although the main specialization of the tool is woodwork.
  • Many models are equipped with a stepless adjustment of the cutting angle, which is carried out using a screw mechanism. This allows you to quickly and accurately measure the desired angle and no less accurately cut it.
  • The high safety of using the devices is due to the fact that most models are equipped with double protective insulation, electronic motor overload protection and the function of stabilizing the number of revolutions at high loads.

However, like any other electric tool, submersible models also have drawbacks. The disadvantages include too high, in comparison with conventional circular saws, the cost and complexity when cross-cutting too narrow workpieces, if their width does not exceed the support of the saw.

How is it different from a circular?

The main difference between the plunge-cut saw and the traditional saw is the blade arrangement. It immediately catches the eye and does not allow the models to be confused. If in a conventional saw, although it is closed from above with a protective casing, it is still clearly visible from below, in submersible models it is located above the level of the sole and is completely covered with a casing. The horizontal position of the disc relative to the sole is also different: in plunge-cut saws it is maximally displaced to the edge, while in ordinary saws it is located almost in the middle.

The next difference is the principle of work execution. So, if when using traditional models, filing starts from the edge of the workpiece, then with submersible models it can be started from anywhere. To do this, you just need to set the required cutting depth parameters, unlock the “head” equipped with a spring mechanism, and place the device exactly in the place where you want to go deep into the wood. After the disc is immersed in the material, it is necessary to smoothly guide the device along the contoured mowing line.

Another distinguishing feature of plunge-cut saws is the bar. This allows for even trimming of long boards, which cannot be achieved with a conventional circular, despite its parallel stop.

It should also be noted that the plunge-cut saws have an anti-splinter liner and “clean cut” discs, thanks to which it is possible to form an absolutely smooth surface of the cut and completely eliminate the formation of chips.

Features and selection of plunge saws

  • What it is?
  • Device
  • Advantages and disadvantages
  • What are?
  • How is it different from a circular?
  • How to choose?

When processing wood with a power tool, the problem of accurate cutting often arises. Unfortunately, even modern disc models cannot boast of a perfectly executed job. This is due to the impossibility of exercising proper control over the position of the cutting tool relative to the workpiece. To solve the problem of sawing accuracy, a submersible circular saw was invented and launched into production, which immediately gained popularity among woodworkers and became a sales leader.

What it is?

The plunge-cut saw is a type of electric circular saw and is designed to cut wood surfaces not only from the edge, but also from the middle of the workpiece. A feature of the device is the ability to adjust the depth of the cut, which is carried out by placing the disc in a predetermined position relative to the base plate.

Thanks to the adjustment mechanism, the depth of the cut can be adjusted down to a millimeter, which cannot be achieved with a conventional tool.

How to Use a Circular Saw. Everything you need to know. | Woodworking Basics

The principle of operation of the plunge-cut saw is quite simple and consists in the following: the operator sets the required depth and the desired inclination of the working disc. Then the tool is turned on, removed from the lock, inserted into the wood and carefully guided along the marked mowing line. When the motor is started, the working shaft begins to rotate together with the disk mounted on it and cuts the surface. Many modern models of plunge-cut saws are equipped with a speed control function, so that the number of revolutions can be changed depending on the type of material being cut.

At the end of the work, when the pressure on the disc weakens, the cutting unit is spring-loaded and hides behind the sole. The area of ​​application of plunge-cut saws is wide enough. The tool is used for making furniture, cutting grooves, cutting shaped openings and gutters in wooden products, as well as for repairing roofs and working with laminated materials.

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How to choose?

If the decision to purchase a plunge saw has already been made, then when choosing it, it is recommended to take into account a number of important factors.

  • It is necessary to decide on the type of power supply of the model. So, if the device is bought for building a house, on the site of which there is no electricity, then the battery model should be chosen. Despite the lower, in comparison with network models, operational characteristics, the tool copes with its task quite well and cuts wood no worse than its electric counterpart.
  • The next selection criterion should be the power of the device. So, for home use, you can limit yourself to models with a capacity of up to one kilowatt, while for professional equipment it is better to choose an engine of 2.5 kilowatts. It is also necessary to pay attention to the presence of an emergency shutdown mechanism, which will prevent overheating of the engine due to a sharply increased load.

It will not be superfluous to check the convenience of the control and adjustment mechanisms, as well as to make sure that there are service centers and the availability of spare parts for a particular model.

For an overview of the Makita SP 6000 plunge-cut saw, see the following video.

The main elements of the circular saw

Hand-type circular saws have a number of irreplaceable parts. We have already said about the disc itself, now we will touch on other important elements. The circular saw runs on electricity, hence certain design features. The handle of the device is made durable; a switch can be located on it together with a lock button. A separate part on the saws is equipped with a special open compartment for ejection of sawdust in a given direction. To ensure safe working, there will always be a robust protective cover over the disc.

Triton TTS1400 Plunge Circular Saw:
power 1400 W
no-load speed 2000-5300 rpm
saw blade 165×20 mm
tilt angle 0-48˚
cutting depth at an angle of 90˚ 54 mm (along the tire)
cutting depth at an angle of 90˚ 59 mm (without bar)
cutting depth at an angle of 45˚38 mm (along the tire)
cutting depth at an angle of 45˚42 mm (without bar)
sound pressure level Lp: 83.8 dB
sound power level Lw: 94.8 dB
dimensions 250х335х235 mm
weight 5.5 kg
TTS1400 circular saw kit includes:
saw blade 60 TCT;
disk replacement and tuning tool kit.
Features of circular Triton TTS1400 article TR208724:
Mode switch. Quickly switch between plunge cut, undercut and blade change modes
Immersion trimming mode 2.5 mm. Prevents splitting and scuffing of surfaces
Easily replaceable carbon brushes extend product life
High precision beveling angle adjustable in the range of 0. 48º
Two sidewalls for angle setting provide stability and high cutting precision
Variable speed, soft start and electronic speed control. Allows you to choose the right cutting data for any material
Double centering cams. Adjusting the fit of the saw to the guide improves machining accuracy
Kickback protection. Prevents the saw from bouncing when making plunge cuts
Guide lock. Provides stability when cutting at an angle
Precise adjustment of the cutting depth. Maximum depth 54 mm
Visual indicators of the cut. For precise positioning of the disc on the workpiece
Fast saw blade change. Convenient access through the fence
Highly efficient waste disposal. With universal exhaust and outlet adapter that can be rotated 360 °.
Saw blade replacement mode and switch lock for easy blade replacement.
Fixing the vertical position. The disc is fixed inside the guard when the tool is not in use.
Non-slip rubberized handle. Improves stability, safety and comfort.
Triton Warranty:
For this warranty to take effect, register your product online at www.tritontools.com within 30 days of purchase. Otherwise, the standard 30-day warranty will apply.
The warranty period starts from the date of purchase of the product in the retail network indicated on the receipt.
If the product breaks down within 30 days of purchase, return it to the retailer with a detailed description of the problem.
If the malfunction is discovered later than 30 days, then a complaint will have to be filed.
Together with the complaint, you must submit the original receipt, which indicates the product designation, date and place of purchase, a full description of the defect, a warranty certificate, and indicate your full name and address.
We will not reimburse transportation costs. All products returned for repair must be kept clean and safe. Products must be packed so that there is no risk of damage or injury during transport. We reserve the right not to accept inappropriate or unsafe packages.
All work will be performed by Triton Tools or an Authorized Repair Agent. Repair or replacement of the product does not extend or extend the warranty. Replacement tools or parts become the property of Triton Tools. Repair or replacement of a product under warranty is an additional service that does not affect your statutory rights as a consumer.
What the guarantee gives:
Repair of the product (after Triton Tools has verified that the defect is due to faulty material or defect). If any parts are out of stock or out of production, Triton Tools can match them with functional equivalents.
What is not covered by the warranty:
Normal wear and tear when used in accordance with instructions (e.g. wear on discs, brushes, belts, lamps, batteries).
Accidental damage, as well as failures due to improper use, abnormal environmental conditions, overloading, improper maintenance or careless handling of the product.
Inappropriate use of the product.
Any design changes or product modifications.
Defects caused by the use of parts or accessories from third parties.

One of the main operations in woodworking is sawing a workpiece into the necessary parts. In most cases, some type of saw is used for sawing. For trimming bars, boards, skirting boards, platbands, layouts and other similar molded material, use a circular saw, miter saw or mounting circular saws, then to work with sheet materials such as chipboard, fiberboard, plywood. a panel saw or alternative. plunge-cut saw.

Sawing with a guide rail

Now it is enough to make two marks on the workpiece through which the cutting line will pass, align the edge of the splinter-resistant tape along them, while the workpiece we need is under the guide rail (on the left), and the departure to the right of the rail is the guide. If necessary, we additionally fix the guide rail using one of the following options:

  • screw clamps,
  • quick-clamping clamps,
  • end clamps Rapid,
  • vacuum suction cups.

We set the immersion depth of the saw blade in such a way as to cut 4-5 mm deeper than the workpiece. All is ready. Can be sawed.

Makita SP6000SET Specifications

Technical data may differ depending on the export version. Possible constructive and technological modifications of the tool and equipment.

Circular saw: what is it for and how it functions

A very common tool is a circular saw, it is also a circular saw (popularly. “circular”). It can be made in the form of a special large-sized machine for the convenience of cutting long boards and in the form of a very small manual-type structure, the basis of which is a cutting disc with teeth. It is convenient to use this disc to cut a log along or across, to align the edges of the boards, adjusting them in width to a certain size. As a rule, circular saws not only quickly cope with wood, but also plastic or metal (depending on the type of blade).

Most often they can be found in the carpentry workshop. Of course, these saws are produced in different capacities, this is one of the criteria when choosing a device. The more revolutions the disc picks up, the faster and better the work will be. However, this is not always the case. Here you need to take into account the power consumption of the device and the heating time of the disk. The quality of the work will also be affected by the sharpening of the teeth. They have an inclination towards the direction of the saw movement, providing fast cutting, but if the blade constantly overheats, and the speed of work has dropped, it is a sure sign to go to sharpening each tooth separately.

Manufacturers (brands) of plunge-cut saws

It is impossible to determine which saw is right for you based on the “dry” technical characteristics, because a more powerful saw can cost several times cheaper than a less powerful analogue. That’s because for plunge-cut saws, power doesn’t play a major role.

Plunge saws from completely different price ranges

Roughly they can be divided into two weight categories up to 250 Euro. DIY saws and more than 250 Euro saws for professional use. Often in reviews of plunge-cut saws, saws of different categories are compared. the main technical characteristics of all saws are close, which is not correct. An important difference is the reliability of the mechanisms and the availability of special functions. Some DIY saws are made by the same manufacturer under different brands.

Four generations of FESTOOL plunge-cut saws: AXF 45. ATF 55 (EB). TS 55 (EBQ). TS 55 R (EBQ)

FESTO AXF 45

A bit of history. The first plunge-cut saws AXF 45 and AXF 55 were introduced by the German company FESTO in 1980. It was proposed to work with a saw in conjunction with a guide rail, which provided cutting accuracy unattainable for a hand tool at that time. The benefits of using a saw in combination with a guide rail quickly gained massive confidence in carpenters and joiners.

In 1989, the ATF 55 saw (ATF 55 E, ATF 55 EB) became the benchmark among sheet metal saws for almost 15 years. The ideal plunge-cut saw design is patented, which is why FESTOOL has dominated the plunge-cut saw market for many years. The saw uses three bearings on the shaft instead of the conventional and much less reliable two bearing design. The tilt of the saw is carried out around the protective edge on the guide rail, therefore, the saw cuts along the same mowing line (without offset) strictly perpendicularly and at any angle from 0 to 45 degrees.

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The benchmark for plunge-cut saws for many years

Smooth speed control, soft start, electromagnetic brake, overload and overheating protection with LED indicator. the most perfect electronic filling of that time. In addition to the main use. sawing sheet material. the saw was used for another operation popular at that time in South Germany. trimming a wooden ceiling with a uniform gap around the perimeter of the room.

A separate advantage was also the trimming of the door leaf instead of fitting the end with a plane. The ATF 55 EB saw also had a more powerful version. the AT 65 EB. Any FESTOOL tools are accompanied by a variety of different accessories, and a large number of additional accessories are offered for the saw, expanding the scope of its application, improving the result of work and simplifying difficult tasks.

The letters and numbers in the name ATF 55 EB are deciphered as follows:

A. (first, main, basic) instrument in the manufacturer’s line,
T. (tauchen (German). plunge, plunge-type saw,
F. Fuge (Schattenfuge). uniform gap around the perimeter of the ceiling,
55 or 65. cutting depth of the saw, mm,
E. the presence of electronics,
B. electromagnetic brake.

The design of the saw turned out to be so successful that until today (06.2018), on the basis of the ATF 55 E saw, a specialized milling cutter for facade composite panels PF 1200 E has been produced.

Third generation plunge-cut saws. TS55EBQ

In 2003, the TS 55 EBQ saw replaced the ATF 55 (the new TS 75 EBQ replaced the AT 65 EB). And again, many revolutionary solutions: a cast, more stable base body, a special quick-change mechanism for the saw blade, an anti-splinter insert for the counter side of the workpiece, tool-free selection of the backlash when installing on the guide rail, quick-detachable cable. Color code appears. almost all controls are green.

In 2011 Bosch launches its first version of the GKT 55 GCE plunge-cut saw on the market.

In 2012, with the advertising slogan: “ accurate. Even slimmer. The best plunge-cut saw we’ve ever made ”- the fourth generation of plunge-cut saws from FESTOOL is born. TS 55 REBQ. Instead of developing a completely new tool, the engineers of TTS Tooltechnic Systems rightly decided that in many ways the TS 55 EBQ did not need to be improved, therefore the parts tested over many years of practice. the motor, gearbox and other surrounding components. remained unchanged. Likewise, the electronics functions: soft start, speed control, overheating and overload protection. remained the same.

By the way, on the North American market TS 55 REBQ is sold in the TS 55 REQ version, i.e. without “B”. in addition to a motor designed for a different voltage, the saw does not have an electromagnetic brake “Quantum Leap” has taken place in the direction of design features:

Advantages of the TS 55 REBQ saw

  • Dual scale, for reading the readings when working with and without a guide rail.
  • Tool-free fine adjustment of the cutting depth.
  • A viewing window or an anti-splinter liner. at choice, depending on the type of work.
  • The main distinguishing feature is the ultra-slim body, with a fully integrated suction nozzle, no “belly”. Thus, it is possible, for example, to file a parquet board at a distance of 12 mm from the wall.!
  • The second important feature is the riving knife. When plunging, it lowers before the saw blade, which is a safety measure, and also allows you to accurately enter the previously made cut. When sawing wood along the grain, where the saw blade could be pinched, the riving knife prevents the risk of kickback. Competitors took a different path. Instead of a riving knife, they supplemented their saws with an electronic clutch. when the saw blade gets jammed, the saw power is turned off.
  • Extended blade tilt range from 1 to 47 degrees.
  • New improved, more efficient dust extraction system from the sawing area.

Operating the TS 55 REBQ plunge-cut saw (TS 75 EBQ)

The name guide rail comes from the original translation of the German word Führungsschiene, which literally translates as guide rail.

First, let’s figure out what elements the guide rail has, and why they are needed.

    Features of the FS guide rail

Chip protection or anti-splinter tape. Protects the workpiece from the formation of chips, which are most often formed when sawing chipboard. This is the most wearing part of the guide rail and must be replaced regularly.

  • Sliding band (anti-friction) reduces friction between the plunge-cut saw and the guide rail, allowing the saw to slide easily on the guide rail.
  • The anti-skid tape is necessary to create increased friction between the guide rail and the workpiece, so that the guide rail is securely held on the workpiece during processing. For even more secure fixation of the guide rail on the workpiece. clamps are used.
  • Auxiliary grooves are used to attach additional equipment and to connect the guide rails to each other.
  • For comfortable work, the length of the guide rail should be at least 400 mm longer than the workpiece length (250 mm in front of the workpiece and 150 mm after the workpiece). In this case, it is possible, if necessary, to completely immerse the saw without sawing into the workpiece at the beginning and finish cutting the workpiece at the end, while the saw will be guaranteed to be on the guide rail with its entire support surface, and the workpiece will be cut.

    If the protection against chipping is worn out, but there is no new one at hand, then you can carefully peel it off the guide rail, because it has a self-adhesive surface, and glue back with an offset of 2-3 mm outward. Then re-file the chip protection. Woo-a-la.

    The standard lengths of the guide rail are 800 mm, 1080 mm, 1400 mm, 1900 mm, 2400 mm, 2700 mm, 3000 mm and 5000 mm. Custom lengths can be cut from a longer standard guide rail. For example, to work with sheet acrylic stone with a standard size of 3600×600 mm, it is recommended to cut a guide rail 5000 mm long into two parts 4000 mm and 1000 mm. In this case, the long part (4000 mm) is used to cut the sheet lengthwise, and the short part (1000 mm) is used to cut the sheet across.

    There is a possibility of joining the guide rails using two connecting plates. An important difference between the FESTOOL guide rails from most competitors is the presence of two grooves for the simultaneous use of a pair of connectors. Splicing the guide rails with a pair of connectors gives a much more bending stability. This advantage is especially evident when milling with a router on the guide rail, when a force perpendicular to the guide rail appears, tending to move this rail and rotate (displace) the junction of the guide rail.

    Before starting to work correctly, the plunge saw must, as the Germans say, “marry” a guide rail, or, more simply, saw the anti-splinter tape. For this purpose, the saw is placed on the guide rail and positioned using two eccentric clamps. By rotating them clockwise and in the opposite direction, it is necessary to find a compromise between the absence of lateral play of the saw on the guide rail and the ease of longitudinal movement of the saw along the guide rail. After the backlash is selected and absent, and the saw slides along the guide rail without excessive force, it is necessary to saw off the splinter tape (protection against chips). The manufacturer recommends placing the guide rail on any suitable base and sawing off the anti-splinter tape (protection against chipping) with the maximum immersion of the saw. The bottom edge of the splinter guard is now always aligned with the cutting edge of the saw, not only with a perpendicular cut, but with all other angle settings.

    Purpose and application of circular saws

    A circular saw. the instrument is not new, it won the hearts of furniture and joinery craftsmen long ago. Outdated name. circular. It comes from the Latin word “cirkule”, meaning “circle”, “circle”, since the saw blade has a perfectly round shape. Often the circular is also called “parquet”, meaning that it is the best at cutting parquet blanks. So, newcomers to the carpentry business, defining for themselves what parquet is, should understand that this is a circular circular saw capable of sawing not only parquet board, but also other sheet materials.

    The saw effectively produces a neat and accurate cut in wood, wood materials, soft metals, plastic varieties, foam concrete blocks.

    The convenience of a circular saw is that it is able to cut not only along a straight mowing line, lengthwise and across, but also at the desired angle with the greatest accuracy. For this, the tool is equipped with a degree and metric scale, tires, rulers, guides.

    One of the types of circular. submersible circular saw, in general, can start cutting not only from the edge of the workpiece, but in any desired place. over, in the submersible circular, not only the depth of cut is regulated, but also its length, and there is also a unique opportunity to cut right next to a vertical obstacle (for example, a wall) with a minimum gap.

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    Based on the listed capabilities and functions, the scope of application of circular saws is determined:

    • Woodworking enterprises;
    • Furniture and carpentry shops;
    • Home workshops where furniture, windows, doors, parquet boards are made;
    • Garages and workshops where various household items are repaired and refurbished;
    • Home repair work and even professional repairs;
    • Construction objects of various types.

    Varieties of circular saws and their differences

    To choose the circular saw that is most suitable for the task at hand, you need to know that there are different types of circulars. Some of them are ideal for a large woodworking enterprise, others are best suited for simple cuts, and others are relevant for complex cuts of different materials. Among modern circular saws, the following types are distinguished:

      Stationary (desktop) circular. Such a saw is not mobile, it is stationary (stationary), in fact, it is a circular machine. She is very productive in cutting plywood and wooden beams, sawing boards, sheet material and wood-based panels, making transverse and longitudinal cuts. The base is a massive cast iron (sometimes steel) bed and rack. A working table is fixed on the drain, it has a slot in which a large saw blade is located. Above the sharp teeth are covered with a protective cover. The essence of the work is that the saw itself stands motionless, and the material being cut moves towards it, thanks to the movable part of the working table. The stationary saw is very firmly fixed. In addition, the frame gives it a solid weight and structural rigidity. Therefore, the vibration level of stationary circulars is reduced to a minimum. There are no backlashes and fluctuations, so the cut is highly accurate, clean and accurate. By cons we count the same solid weight. they are difficult to transport.

    After familiarizing yourself with the different types of circular saws, you can determine which tool is most suitable for your planned work. Whether you need a powerful professional device, or a simple and cheap household grade, or an expensive cordless file that allows you not to get tied to the network, or a functional plunge saw.

    How the circular saw works and how it works

    In the most typical design, a circular saw is a hand-operated device. For holding and various manipulations during work, the tool is equipped with handles. But also circular is also called a circular machine, which is installed on the machine or on the floor. We will also talk about them in this article. The main components of a conventional circular saw. this is:

    • A sole that fits snugly against the sheet being cut, without backlash and gaps, and slides over it during cutting.
    • Electric motor. From it, the torque is transmitted through the gearbox to the spindle.
    • Cutting unit. It is represented by a spindle that develops a huge rotational speed and a saw blade with teeth. The cutting blade is half-covered with a protective cover for safe work. For plunge-cut saws, the blade is completely hidden in the casing, which makes it possible to accurately position the saw anywhere in the sheet material for cutting.
    • Two handles (rarely one). With their help, the saw is held, guided, moved along the surface of the sheet to be cut.
    • Chill suction. for removing chips and dust from the working area.
    • Guide rail or fitted guide rail and ruler system.
    • Hinges for turning the disc at the required cutting angle.
    • Work table, expanders, rip fence (in the case of a stationary saw).

    The spindle speed for a standard circular is 5000-5300 per minute. The diameter of the saw blade ranges from 115 to 250 mm, and for the most powerful stationary saws it reaches 600 mm. The power supply of the electric drive can be network (basically, it is a single-phase 220V network, only for powerful production models. 380V) or rechargeable (from a battery). The power of the electric motor ranges from 600-800 W (household tools) to 1.8 kW (professional saws) and above (industrial circular saws). The maximum cutting depth depends on the power of the motor and can reach 7-8 cm.

    As you can see, the design of the circular saw has no special problems, it is simple to perform and to repair, understandable in operation.

    What is a circular (circular) saw: types and scope

    Among the cutting power tools there are a couple of such that will never be superfluous in the household. Such lucky ones include a circular saw, or, as it is abbreviated as the master. circular. Circular. this is an electric circular saw, it cuts with a disc with teeth. Initially, this type of circular saw was conceived only for sawing wooden sheet materials. These include plywood, chipboard, laminate. But, if you replace the blade with a corresponding saw blade, then the saw will easily cope with cutting other materials, such as non-ferrous metals, plexiglass, plastic, stone, concrete, tiles.

    You will learn about what a circular saw is for, what types of circulars exist, and where they are used, from this article. I will tell you about the features of the structure and operation of a circular saw, about the various options for its execution, as well as what parameters you need to pay attention to when choosing it for home or for professional tasks.

    What to look for when choosing a good circular

    Finally, I will give some tips on how to choose a circular saw, what technical characteristics are important when choosing, what performance indicators you need to pay attention to first of all.

    • The first indicator when choosing a circular saw, like any other saw. this is the power of the installed engine. This parameter affects all other characteristics. It determines both the maximum size of the saw blade, and the depth of cut, and the maximum possible thickness of the sheet material, and its allowable hardness. The dependence is directly proportional. the higher the power, the larger the blade, the deeper the device cuts, the harder the wood can be cut. But there is also an inverse relationship. the more powerful the motor, the heavier it is in weight. Therefore, we are guided approximately like this:
    • For household household work, we take a light file with a power of up to 800 W.
    • For furniture workshops. medium-weight saw, motor from 800 W and above. up to 1.2 kW.
    • Anything that has an electric drive with a power higher than 1.2 kW. these are already heavy professional saws. They are taken for large sawing jobs, for stationary installation.
    • The second important indicator. cutting depth. As I said, it is determined by the engine power. the more powerful it is, the deeper you can cut. You cannot put a large circle on a low-power device. the motor will burn out. And with a small disc, only thin sheets can be cut. Basically, the most popular circular saw models cut 5-6 cm deep. This is with a straight cut, when the blade is at an angle of 90 degrees to the surface. When the blade is tilted at an angle, the cutting depth decreases. Shallowest depth at 45 degrees. It is 3-4 cm. In the most powerful professional circular saws, the depth of the material cut is higher. reaches 7.5 cm.
    • Speed. A good saw has a rotational speed in the range of 5-5.3 thousand revolutions per minute. High rotation speed makes it possible to cut very dense materials, prevents jamming of the cutting nozzle in the workpiece, guarantees a clean and high-quality cut.
    • Sawing at a given angle. handheld portable circulars have this function. It is mandatory for professional saws as well. The angle is generally between 0 and 45 degrees. But there are also more advanced models in which the disc rotation reaches 60 degrees.
    • The ability to cut metals. The function is not available for all saws, only for those for which it is indicated in the passport. The fact is that cutting metal requires good power and the ability to install a different cutting attachment. It is good to saw metal parts and a well-known angle grinder. However, the circular saw cuts straight and at an angle, and is much quieter and safer.
    • What the body is made of. The plastic case made of modern plastic is very sturdy and durable. However, the metal body is of course stronger. It happens in expensive professional-grade models.
    • Allowable disc diameter. The protective cover will prevent the installation of a disc larger than the motor can handle, and this is very good. Smallest nozzle size. 115 mm. Most popular size. 180 mm, professional saws have a 250 mm disc. There are circles with a diameter of 500-600 mm in production.
    • The presence of tires, rulers, guides. Circular saw with guide rail. this is a high cutting accuracy. Often the tire is not included in the kit, but there are slots on the sole of the file for its installation.
    • Availability of additional options. This also includes safety enhancement functions (all kinds of locks, disc brakes, emergency stops). And systems that increase the comfort and quality of cutting. The latter include a smooth start, constant electronics (speed stabilizer under load), a branch pipe for connecting a chip suction, shaving discharge into a bag, laser marking of a mowing line cut.

    With these performance and characteristics in mind, you can easily select a circular model for your home or business. Before choosing, also decide which type of circular saw according to its structure and method of feeding is best for you.

    If you have any questions after reading the article, leave comments below. I will gladly answer them!