Contents
- 1 Design features of the
- 2 circular saw Select a circular saw for the
home workshop Useful tips for choosing a circular saw for your home workshop.
Those who deal with construction or locksmith tools, certainly from childhood, are familiar with the circular, or circular, saw. This tool was necessarily present in the arsenal of home masters. Especially appreciated were models of circular saws that were attached to a table or workbench to use it as a stationary saw. Today, the repair site will perform a review of modern circular( circular) saws of various manufacturers - MAKITA, WORX, BOSCH, Skil, AEG, Black & Decker and other models from different price categories. Recall that we have already told how to choose a chainsaw, a punch and a drill for the house.
The developers of the circular saw are Mitchell and Sillivan, the founders of the world famous manufacturer of SKIL equipment. A tool called Skilsaw - the prototype of a modern circular saw - was released in series production in the mid-1920s. For almost a hundred years, since the first "circular", the type of instrument has completely changed. And the leading manufacturers of metalwork tools constantly continue to improve the saw blades, which are always in high demand.
Working with a circular saw is very easy and convenient, but you should be careful and take safety measures into account. Neglect of the use of the tool can cause serious damage to health.
Circular saw design
Circular saw is a hand-held electric tool intended for longitudinal and transverse cutting of wood, wood, plastic and soft non-ferrous metals. Work with the use of a circular saw is characterized by high speed and precision, therefore this tool is literally irreplaceable in the performance of roofing works, furniture manufacturing, laying floors and other carpentry. The saw, equipped with special discs, is also used for sawing metal profiles used in the design of furniture.
The design of the circular saw itself has not changed since the moment of its creation. Of course, the tool has become more ergonomic and powerful, the weight has decreased, but the fundamental changes have occurred only with saw blades. At present, a lot of various saw blades have been developed, designed for work on various materials, such as wood and wood materials, aluminum and alloys, laminates, etc.
The main components of the circular saw:
- electric motor;
- gear housing;
- protective cover;
- platform and guide.
Circular saw body, as a rule, is made of durable heat-resistant plastic, more rarely - of metal. Since work with the use of a circular saw often has to be performed in a dusty environment, when developing saws, most manufacturers pay special attention to the ventilation and cooling systems, as well as chip removal. This serves, first of all, to protect the worker from dust, which adversely affects the health status. All modern circular saws can be connected to industrial vacuum cleaners or to a dust extraction system. Special adapters are used for this. Some saws are equipped with stationary systems for removing dust and shavings. For example, a circular saw MAKITA 5017 RKB with an engine of 1,400 kW and a saw blade with a diameter of 190 m mills in its construction a container for collecting sawdust, allowing to remove more than 90% of sawdust that inevitably form when working with a saw. With small amounts of work, this is practical, but if there are many works, the Makita 5017 RKB circular saw creates some discomfort in cleaning the sawdust collection.
Some manufacturers, in order to make the work with the instrument more comfortable, resort to very original solutions. For example, the Worx WT431KE circular saw from the WORX company( saw blade diameter 185 mm, motor power 1.5 kW,) is equipped with a "turret handle", which can change its tilt angle to 60 degrees. This is a very useful innovation, because the operator has the opportunity to work with a saw as it is convenient, depending on individual anatomical features. This engineering solution was developed by WORX and is implemented only in the instruments of this manufacturer.
All modern circular saws are equipped with a collector motor with power from 500 to 2500 W.Engine power affects parameters such as the depth of cut and the number of revolutions of the saw blade. Another 10 years ago, circular saws had an average of 3,000 rpm. For example, the model of circular( circular) saw MAKITA 5143R with a power of 2.2 to W( disk diameter of 355 mm), not descending from the market for 10 years, has 2700 rpm.
Modern models of saws have already up to 5000 revolutions, as, for example, a circular saw BOSCH GKS 85( power 2.2 kW, disk diameter 235 mm).
A new version of this tool deserves special mention - cordless circular saws. For example, a wide range of battery tools, among which various types of disk saws equipped with accumulators, was developed by BOSCH.One of the most interesting novelties is the disk saw BOSCH GKS 36 V-LI Professional, working on high-quality lithium-ion batteries. The tool is equipped with a disc of diameter 165 mm( 4000 rpm) and weighs only 4.8 kg.
Batteries can be equipped not only with professional tools, but also a number of household tools. Unlike equipment such as perforators, professional drills, circular saws, angle grinders, are not equipped with a lock button lock, which would allow it to be fixed in the on position. This is due to the high safety requirements.
Modern electric circular saws often have another interesting and useful innovation - the laser pointer .Even if the sawdust will fill the marked line of the cut with the work, then in the presence of a laser pointer this will not interfere with the work.
Before selecting a circular( circular) saw, a special value should be given to the of the structure of its platform. For household use, a saw with a stamped platform can be used - as a rule, such saws have a lower cost, - but for professional use, a saw with an aluminum cast platform is the best. Such a platform is more resistant to deformations and therefore the saw will be more precise in operation. Many manufacturers apply a special marking to the saw platform, with which it is possible to more accurately cut the material.
In addition, it is necessary to pay attention to the possibility of replacing the saw blade .If the saw blade does not have a spindle lock, the drive can only be replaced with two keys, which is very difficult and takes a long time.
If you need to perform high-precision work, it is desirable to pay attention to the guide rail .All firms produce guide rails for their saws, but it must be taken into account that they are suitable only for tools of the same manufacturer.
Special attention should be paid to saw blades .Today, saw blades are produced for almost any material. The high quality of the discs is due to soldering from hard alloys, geometry and the frequency of the teeth on the disc. There are discs for wood, there is - on the laminate, after which the surface of the material does not require treatment. Using modern saw blades, you can not be afraid that the saw, jumping on the nail left in the board, will break.
It should be noted that the repair of a circular saw is a very expensive exercise. For example, the cost of replacing the anchor is almost equal to the cost of the new saw. The cause of wear of the splines at the anchor can be such things as excessive pressure on the tool itself during operation, an error in the selection of the saw blade or its damage or defect( no carbide tacks, improperly sharpened).
Choosing a circular( disk) saw for the home workshop
What kind of saw is preferred for the home workshop? Let's consider some models of circular saws( we shall stop on saws with a food from a network, as saws on accumulators have rather restricted area of application) - household and inexpensive professional.
Circular saw SKIL 5866 AF
This model stands out from a number of similar, strict ergonomic design and excellent technical characteristics. This saw is very convenient to work with special rubberized handles, which make it easy to hold the tool and reduce vibration. The saw is equipped with a powerful motor( 1.5 kW) and a universal 24-tooth saw blade with a diameter of 190 mm( speed - 5500 rpm), which allows cutting depths of up to 66 mm. An important feature of this model is a double laser pointer, which allows not only to make precise cuts, but also showing the thickness of the disk, which allows you to see how much material will go into the consumption during sawing. A plastic case and an adapter for connection to an industrial vacuum cleaner are provided with the saw. Also on the saw can be installed a bag for collecting sawdust and shavings. The cost of this circular saw is about 7000 rubles.
Circular Saw AEG HK 75 A
This model of a circular saw is equipped with a 1.4 kW motor and a disk with a diameter of 210 mm( 5600 rpm).The front handle of the saw is rigidly fastened to the stamped support platform, which ensures the stability of the tool during operation. Additional convenience for operation is brought by a long( 4 m) power cord that allows you to perform work without using extensions.
In order to prevent spontaneous inclusion, manufacturers have equipped this model saw with an emergency lock button lock. In the kit with the saw comes a side ruler for precise sawing of the material and an adapter for connection to an industrial vacuum cleaner. The cost of this model is about 7500 rubles.
Circular Saw Black & Decker XTS1660KA
This is a very bright and ergonomic model. Its weight is -2.2 kg, and the catchy design makes it similar to the classical saws from SKIL.The saw is equipped with a disk with a diameter of 190 mm with a rotation speed of 5000 rpm and an engine with a power of 1.6 kW.Depth of cutting at this saw -65 mm. The saw is equipped with a laser pointer, allowing you to make the most accurate cuts. The design of this model is based on a cast aluminum platform. Warranty from the manufacturer - 2 years, and the cost - about 7800 rubles.
All the above saws have approximately the same capabilities. Adjustment mechanisms allow you to change the depth and angle of slope of the cut( up to 45 degrees).
The circular saw AEG HK75 A belongs to the professional category. However, the model Skil 5866 AF deserves special attention. Laser pointer on it is more conveniently located and, accordingly, less susceptible to damage. The front handle is made in a more ergonomic shape than the AEG HK75 A saw, and is more easily held than the straight handle of the Black & Decker XTS1660KA saw. And also, the pointing of the Black & Decker XTS1660KA saw does not always allow you to see the immediate place of the saw, which can create difficulties during operation.
Of course, the choice of the tool is a completely individual question, but the Skil 5866 AF circular saw was the most popular for us.
Never forget the safety measures when using circular saws. It is necessary to carefully study the instructions, and during the work must use safety glasses.
We hope that our material has brought you benefits and made it possible to get an idea of the possibilities of such tools as a circular saw. We wish you a successful choice and high-quality and safe work.
