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Gas vs. Electric. A string trimmer spins a line head by means of either a gas engine (in almost all cases burning a gas-oil fuel mixture) or a lithium-ion battery and a DC motor. The harder you ...
24-Volt 13-Inch Telescopic Shaft Battery String Trimmer. Cordless string trimmers can cost upwards of $300, which may not make sense if your trimming needs are relatively small.
String trimmers powered by an internal combustion engine have the engine on the opposite end of the shaft from the cutting head, while electric string trimmers typically have an electric motor in the cutting head, but there are other arrangements, such as where the trimmer is connected to heavy machinery and powered by a hydraulic motor.
A 2001 study showed that some mowers produce the same amount of pollution (emissions other than carbon dioxide) in one hour as driving a 1992 model vehicle for 650 miles (1,050 km). [30] Another estimate puts the amount of pollution from a lawn mower at four times the amount from a car, per hour, although this report is no longer available. [31]
McCulloch Motors Corporation is an American manufacturer of chainsaws and other outdoor power tools.The company was founded in Milwaukee, Wisconsin, in 1943 by Robert Paxton McCulloch as a manufacturer of small two-stroke gasoline engines and introduced its first chainsaw in 1948, the Model 5-49.
Andreas Stihl designed and hand built his first chainsaw in 1926. [5] The saw was electrically powered, and weighed about 48 kg (106 lb). [6] Stihl grew slowly initially, as the chainsaws came to the market about the same time as the Great Depression; with manpower cheap, and old two-man saws proven, there was no need for power saws.