Stand-alone hedge trimmers The power source of stand-alone hedge trimmers can be
human power,
gasoline, or
electricity. • Manual hedge trimmers (sometimes also called
hedge shears or
hedge clippers) are designed as large
scissors or large
pruning shears. They do not need anything to operate and are cheapest/most environmentally friendly. • Motorized hedge trimmers allow work to be done faster and with less effort than manual ones. Their cutting mechanism is similar to that of
finger-bar mowers. Powered trimmers are generally designed with safety devices such that they work only when both of the operator's hands are on the handles. • Gasoline-powered trimmers tend to be more powerful but can be heavier and more difficult to start. • Electrical trimmers tend to be lighter and less powerful (than gasoline variants) as well as less polluting/noisy, yet still require an electrical cord with most types (if not equipped with
rechargeable batteries). File:Taille haie.jpg|A manual hedge trimmer with telescopic handles File:HeckenschereElektr.jpg|An electric hedge trimmer File:323HD60.png|A gasoline-powered hedge trimmer
Tractor-mounted hedge trimmers Tractor-mounted and tractor-driven hedge trimmers also exist but are uncommon. These
machines consist of a moveable arm (
hydraulic boom) with a large hedge trimmer attachment at its end. Their cutting mechanism is similar to that of
finger-bar mowers. Such large hedge trimmers are often confused with tractor-mounted
reach flail mowers (booms with flail mower attachments), which appear similar due to the use of booms. And in
colloquial language both, tractor-mounted hedge trimmers and reach flail mowers, are imprecisely called
hedge cutters, or
brush cutters. In contrast to tractor-mounted hedge trimmers, reach flail mowers have a different cutting mechanism and are not only used for trimming hedges but also in several other fields of application (mowing taller grass, road verge cutting,
ditch maintenance, etc.). File:2010-04-07 Unimog at Arthur Ibbetts machinery dealership.jpg|
Unimog with a flail hedge and verge trimmer implement used in
agroforestry File:WLMMH (DerHexer) 067.jpg|A tractor-mounted hedge trimmer ("hedge cutter") File:Dücker Ast- und Wallheckenschere.jpg|Detail view File:Cullompton, Colebrooke Lane - geograph.org.uk - 44053.jpg|A reach
flail mower used for cutting hedges ==References==