Today, manual circulars are found in all construction markets. Such equipment is represented not only by domestic brands, but also by foreign ones, especially Chinese manufacturers. All of them differ not only in technical characteristics, but also in price. Therefore, it is necessary to choose the right power saw to cope with the tasks.
General information
The manual circular saw is an indispensable assistant when performing not only domestic, but also production tasks related to sawing wood building elements.
In addition, by putting special discs, you can cut slate, metal, plastic, etc.
Design and principle of operation
Before you buy a hand saw, you need to understand its design and principle of operation. This information will help you make the right choice. The manual circular has many types, but the principle of their operation is no different fromfriend. The electric motor is turned on, and the rotational movements are transmitted to the disk, with the help of which various types of building materials are sawed. Each material requires a specific blade.
The mini-circular consists of the following structural elements:
- engine;
- special case with handles and control buttons;
- cutting disc;
- protective structure;
- ventilation system;
- platform guiding the movement of the cutting element.
As a rule, a mini-circular is equipped with an engine, the maximum power of which reaches 2500 watts. It is this technical characteristic that is key, and therefore it is worth paying attention to.
Use a regular 220 V consumer electrical outlet or a battery as a power source. Thanks to this, the circular can be used on various construction sites and places where it is impossible to connect to the network. The battery can be either built-in or external.
Another main element is the circular disc. In the modern construction market, you can purchase canvases that can cut any building material. They differ in size and number of teeth.
To change the depth of sawing, the design provides a guide platform. It is made from metal or aluminium. The first type is characterized by low quality of work. Therefore, for more accurate cutting, you should use a guidealuminum pad.
Which is better to choose: household or professional?
Like many construction tools, there are two types of manual circular: household and professional. The main difference between them is that when working with household models, you need to take short breaks to cool the electric motor.
If this is not done, it may burn out. In a month, a household saw should work no more than 30 hours. If there is a need to perform various work not only at home, but also at other facilities, it is best to purchase a professional model. Compared to the household version, such a saw can continuously work for 50 minutes. Of course, its cost is much higher, but the quality and reliability are at a high level.
Main Specifications
Before you buy a circular saw, you should pay attention to its specifications.
First of all, pay attention to the following parameters:
1. Power. This figure depends on the diameter of the disks used. The higher the indicator, the larger the diameter of the working canvas. A high power rating indicates improved performance. But do not focus too much on this parameter. As a rule, powerful models are characterized by high cost and weight. For example, a 1400W manual circular saw weighs 4kg.
2. The frequency of rotation of the disk tray. The higher this indicator, the faster the sawing of the material will occur. In this case, the quality will not suffer. Therefore, to obtain high-quality sawing, you need to purchase a hand saw with high speeds. In addition, the frequency can be adjusted manually. This parameter is different for certain material.
3. Cutting depth. This indicator depends on the engine power. Depending on the difficulty, this value is:
- for household purposes - 40 mm;
- for semi-professional purposes - 50 mm;
- for professional tasks - over 70 mm.
4. Angle cut. Modern models of hand-held circular saws perform cutting at an angle of 45 °. But there are brands where the angle is 60°.
Additional Features
Wood circulars also have additional features that are aimed at improving performance and simplifying the cutting process.
These characteristics include:
- Regulation of the speed of rotation of the working canvas. It consists in selecting the necessary speed for cutting a certain type of material.
- The sawing process. Thanks to this characteristic, work can be started from any side of the product.
- Smooth start. This property ensures a long service life of the equipment.
- Built-in lighting and markings. Designed for more precise cutting.
Makita Circular Saw
Makita's hand-held devices are both household and professional. They are used for sawing woodproducts at home and on large construction sites. The Makita circular saw is capable of many tasks thanks to its powerful technical features. Discs of different diameters are used as a working cloth. The cutting angle is 45°.
This type of saw meets all safety requirements. In addition, the design provides a special function of starting current. With it, work is carried out more smoothly. It will suit both amateurs and professionals.
You can buy it at any hardware store.
"Bosch": features and benefits
The Bosch circular saw was released into the world in 2009 and since then has been an indispensable tool not only for professionals, but also for beginners. Its main advantages are high power, as well as an increased kerf index, which is 56 °. In addition, for ease of operation, the device has a compact size and light weight.
Operating is much more convenient as the line of sight is longer than other models.
Another advantage is the built-in chip blower. It is carried out with the help of a powerful air stream, which makes the work surface clean. The German Bosch circular saw has a high degree of safety. In the event of a dangerous situation, a running disk can be easily stopped thanks to a convenient switch located on the case. You can do this with either hand. Protectivethe housing is made of stamped metal that can withstand harsh environments.
Circulars: reviews
Many users are satisfied with the performance of hand-held circular saws. They are designed for various materials both at home and on the construction site.
When choosing equipment, pay attention to power. This is the key indicator. After all, the frequency of rotation of the working blade and the depth of sawing depend on it. The cost of a tool depends primarily on the type, that is, whether the equipment will be used at home or in production, as well as on power. The price for household models ranges from 2.5 to 7 thousand rubles, and for professional ones - from 15 to 40 thousand rubles. Users also note a high level of security and reliability. In the event of dangerous situations, the saw can be quickly turned off using a special button. Moreover, the torque of the disk will be absent.
So we figured out what circular saws are.
