saws a man came in 1950, whose basic design has changed little over the years, consisting of a chain on a guide rail, which is rotated by a source of energy. While gas-powered devices still dominate, smaller electric models are increasingly used for lighter work. Unit mounted on a telescopic bar can also be found by extending its range up to 12 feet.
No more simple recording device, chainsaws now often used by the average homeowner to prepareWood and prune the limbs. Now they are useful for everything from trees to compensate for the recovery of people in motor vehicle accidents to cut the trees felled for access to roads and houses. Chain saws are sometimes used by artists to create works of art of different materials like wood and ice.
Gas saws are still stronger and more suitable for heavy cutting. Fully portable, they have two engines that use a mixture of gas and oil, and has a barvarious sizes. They are generally stronger and more expensive than electric types, however, and require maintenance. emission standards that currently the cleanest, most efficient gas models, which start to be easier.
electric chainsaws emit no pollutants and are suitable for light cutting tasks, usually within 100 feet of an outlet. With the key off and requires less maintenance, are convenient for small landscaping and other basic activitiesProjects. Extension cord longer than 100 meters are not recommended, but, thus restricting mobility. There are also cordless, battery-powered saws for greater portability, these units are only limited cutting performance and must be recharged regularly, making them suitable only for the easier tasks.
Bar size is another important consideration chainsaw, as it relates directly to the type of work performed. standard bar size of 12 to 20 cm and a saw is safeCutting capacity is long, then a 16-inch bar is the register for up to a 32-inch double the bar. Bar 12-14 inches is sufficient for most small choir, while a 18 - or 20-inch bar is necessary to remove large trees. Drink more than 20 inches may be difficult to handle and are designed for professional use.
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