How to choose a good saw

To solve production problems and in housekeeping often requires a chainsaw. This affordable and efficient hand tool is indispensable for logging, wood construction and other industries related to wood processing. Owners of country houses and dacha plots buy it with pleasure. With it, you can dump an interfering tree, remove dried boughs, prepare firewood for the bath or cut materials used in the repair of the building. In the market there is a huge number of models, each of which has its own advantages. In order not to get lost when buying, the choice of chainsaws should be based on the tasks to be solved.

Chainsaw classification

Depending on the technical characteristics and capabilities, all chain gasoline saws are divided into three main types:

• professional;
• semi-professional;
• household.

Professional chainsaws designed for continuous intensive work throughout the day. They have a long service life and power of about 6-9 kW. The engine capacity of some models reaches 120 ml, and they weigh 10-15 kg each. Such a saw should be chosen for felling of wood or for cutting lumber at woodworking enterprises. A good chainsaw of this class is able to work without repair for 8-16 hours a day during the year.

We must understand that a professional chainsaw will have the maximum consumption of gasoline, and spare parts will be expensive.

Household light chainsaws get for the house or for giving. They can do their work no more than 1-2 hours a day with frequent breaks. Their resource does not exceed 500-1000 hours. With enough margin for home use for several years. Manufacturers of such a tool rely on its efficiency and maximum ease of use.Some of the parts in their composition are made of lightweight materials, which does not allow working with the saw in intensive mode.

The weight of these chainsaws usually falls in the range from 2 to 5 kg. It is clear that their power in this case can not exceed 2 kW. But they are indispensable for use in the household. Such a saw is an excellent pruner and assistant in the performance of repair work or the preparation of firewood.

Semi chainsaws occupy an intermediate position in this classification, combining the best qualities of both types. Among them, you can choose a good model for cutting wood on the basis of sawn timber, building a wooden house and other works of medium intensity. It is also suitable for trimming trees, just remember that the fuel consumption for it will be greater than that of a household saw.

What should I look for when choosing a particular model

The main characteristics of any saw are:

• engine capacity;
• power chainsaws;
• weight;
• total work resource.

They are taken into account when classifying a tool. Having decided on the type of saw you need, study the description of the proposed models from the desired series.Every tool has important design featureswhich should definitely pay attention.

The material of the main elements of the engine

Pistons and cylinders of gasoline engines are made of aluminum, protected by wear-resistant coatings, which determine the life of the engine. Chrome better resists wear. Nicosil is more efficiently lubricated with oils, which provides quick access to the operating mode and reduces the risk of overheating. Single pistons compression ring make it easier to start the engine. But on saws with high-performance motors should be pistons with two rings.

Piston with 2 rings and forged crankshaft

Crankshafts are stamped or forged. The second option is more reliable. It is used by well-known manufacturers.

On household saws, plastic crankcases are often used to reduce weight. A professional tool they are only metal.

Chainsaw tire

The length of the chainsaw tire must exceed thickness of sawn parts. But its maximum dimensions are directly related to the power of the motor.Low-power models are not equipped with tires more than 30-40 cm - they are quite enough for cutting knots. A lumberjack will need a professional saw with a tire from 50 to 100 cm.

Cutting chain

Chains for gasoline saws are different:

• profile height;
• tooth shape;
• step by step.

A smaller step gives a minimal vibration, a larger one contributes to an increase in productivity. This indicator can not be arbitrarily changed for the selected model, since it is directly related to the engine power. The chain length must match tire size. Each saw has a device for controlling the degree of tension.

Saw chain 0,325 ″ 64 (tire 38cm)

Launch system

If you want the engine start-up and the saw to go out to a normal operating mode, it does not cause you any difficulties, make sure that the model in question has special devices, including:

• primer, representing a small pump for the primary pumping of the fuel mixture to the carburetor;

• decompression valve, reducing during start-up the resistance of gases compressed in the cylinder;

• spring starterthat does not require sharp jerking rope.

Safety devices

When purchasing a saw, make sure that it has an automatic device in its design. shock protection. It blocks the chain at the time of the rebound of a working saw when the cutting surface is struck on concrete, metal or any other hard object.

If you plan to use the saw constantly throughout the work shift, vibration reduction system can reduce its harmful effects on the joints.

The professional model should have cushioning inserts on the arms.

Popular Chainsaw Manufacturers

In the domestic market, the main role belongs to the European and Asian brands of chainsaws. They not only offer a huge range of reliable products, but also develop a service network, which significantly strengthens the position of these brands.

Stihl

The German concern Stihl produces tools of all types from household to professional with a corresponding price range. Its products are distinguished by excellent reliability and ease of use.

The carburetor engine 2-MIX mounted on chainsaws is characterized by an economical consumption of the fuel mixture and excellent environmental performance.

Stihl MS 230

Husqvarna

The Swedish company Husqvarna is considered the world leader in the production of household tools. But also professional models are bought up with pleasure by craftsmen who know a lot about petrol saws. The main feature of the products of this manufacturer is the exceptionally high quality of used steel.. Therefore, the chainsaws themselves and spare parts for them are expensive, which is compensated by the increased resource of their operation.

Husqvarna 365

Partner

Partner is organizationally a separate division of the Scandinavian concern Husqvarna, but it is developing its main production facilities in China. It focuses its activities on release. household gasoline sawswhich push competitors at the expense of the favorable price at high quality of any model.

Partner P340S

Hyundai

The well-known South Korean brand, famous for its cars, successfully implements repair and farming tools for various purposes. Chainsaws from this manufacturer are equipped with reliable and powerful motors. The focus of the company on a broad using plastic parts allows you to produce lightweight models, which is an undoubted advantage for household models, but causes criticism of professionals.

Knowledge of the design features and technical characteristics of the main brands, of course, will help you to choose the right chainsaw for your farm. But in the end he should be reminded of the most important quality, which is not amenable to numerical expression - ergonomics. Only a tool that is convenient to use will be used as efficiently as possible.. Therefore, be sure to hold the tool in your hands before making a purchase decision and trust your feelings.