Content of the article:
Multifunctionality, practicality, comfort in operation - thanks to these characteristics, the chain saw has gained popularity among the population. The tool is in demand, both on an industrial scale, and in numerous private farms( at dachas, garden plots, and so on).As an alternative to low power chainsaws, the power tool is designed for cutting wood of any kind. Electric chain saws are successfully used on construction sites, for example, for the manufacture of a roof frame, in private farms - for preparing firewood, cutting down trees with a trunk diameter of not more than 40 cm, spring pruning of branches, and so on. We will understand how to choose the right tool, consider the device electrical device, present the rating of reliable units, and clarify other related issues.
One of the main advantages of a chain saw is the absence of exhaust gases during operation. This feature allows the use of power tools in enclosed spaces without harming the user's health.
The device of the chain saw
The device of any chain saw as follows:
- electric motor;
- removable tire;
- chain with sprocket;
- chain tensioning system;
- direct drive, if the motor of the unit is located transversely, or bevel gear with longitudinal installation of the engine;
- lubrication system;
- brake system( guard plate, thermal relay);
- handle, power cord.
Conclusions of experts and feedback from consumers eloquently indicate that chain saws with a transverse engine are preferable. Such a power tool is more comfortable to use and less tiresome to the user in the process.
How to choose the right chain saw?
As part of the answer to the question of how to choose a chain saw, it should be noted that before purchasing a power tool, it is necessary to clearly understand the conditions under which it is intended to operate. The cost of the instrument ranges from 2 to 25 thousand rubles. Naturally, buying an aggregate from an unknown manufacturer from your hands is to buy a disposable appliance in the literal sense. It is also inappropriate to throw out a large amount of money on a professional tool, the potential of which will never be claimed. Long service life and the maximum rate of continuous operation - characteristics that distinguish between professional and household appliances.
The motor power of light electric saws for cottage with an indicator of 1800 - 2000 W is the best option. A smaller figure contributes to the loss of speed during the load and the heating of the tool during prolonged use. Higher performance motor power - heavy professional models.
So, choosing a power tool, you need to pay attention to the following details:
- It is preferable that the motor is located longitudinally - will allow the use of the tool in different planes.
- Engine power must meet the conditions of operation, but have a reserve. This is necessary so that the tool can withstand fluctuations in the electrical network without consequences.
- Models with a smooth start-up a priori have a longer service life, as they protect the device at maximum current rates at the time of switching on the tool.
- The presence of a start blocking system will eliminate the accidental activation of the tool.
- Thermostat in the unit will protect the tool from overheating, as it will turn off the power supply to the engine in time.
- The presence of a chain brake will help to avoid the unpleasant effect called “back kick”, which occurs due to material resistance with the working part of the tool.
- A chain tensioning system is required - a large nut that fixes the tire. By loosening the nut, you can move the tire by pulling the chain.
- The presence of an automatic lubrication system is also desirable. The pump, which is switched on with the tool motor, evenly distributes the oil over the entire cutting surface.
The oil consumption for a sawing chain is 1 l for an hour of intensive use. Therefore, it is necessary to constantly monitor the oil level in the tool in order to eliminate breakage or rapid deterioration of the unit.
Reliability rating of chain saws
The Makita UC4020A model holds the first place in the reliability rating of chain saws used in personal households. With a weight of 4.4 kg motor power is 1800 watts. A tire length of 40 cm and a 3/8 inch chain pitch provide high performance. The chain is stretched without the use of additional tools. The rubberized grip is comfortable to grip. The tool is perfect not only for personal needs with intensive use, but also for industrial use. The disadvantage is high oil consumption.
The main cause of tool breakage is overloading the unit. In order not to spend money on spare parts for a chain saw, in order to carry out repairs, you should follow the sharpness of the teeth of the working part of the tool. It is the lack of sharpness of the saw that most often leads to an overload of the device.
The second place with almost the ideal ratio of mass and power - 3.4 kg / 1500 W, takes the model Echo CS-600-15.The 30 cm long chain tire allows you to use a chain saw while taking care of gardens and small groves, fishing and hunting( a compact model will easily fit in the luggage compartment of the car), hiking trips and so on. In addition, when creating this tool, innovative technologies were used:
- forged crankshaft;
- adjustable metal oil pump;
- condenser ignition system;
- soft start.
The only drawback is not recommended for use in the winter period.
The third place in the rating of reliable power tools is taken by the model of the well-known brand Bosch AKE 30 S. With a mass of 3.9 kg, the motor power is 1800 W.The 30 cm chain tire, which is relatively small for such an aggregate, makes the device maneuverable, allowing you to significantly expand the capabilities of the power tool. Chrome-plated chain for electric saws is stretched without the use of additional tools, due to the presence of the SDS system.
The power model reliability rating is completed by the domestic model ENERGOMASH PC-99160.The budget model has a weight of 2.9 kg and an electric motor power of 1600 watts. Chain pitch is 3/8 inch. The tool is equipped with a chain brake and automatic lubrication system. The advantages include small dimensions, minimum oil consumption, ease of operation and maintenance. The disadvantages are the rapid chain stretching and the nut position, which is inconvenient for the operator, which is responsible for tightening the working blade of the power tool.
