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The cutting elements (6 to 8 depending on the diameter) are placed around the wheel, and bear the teeth which are more or less dense depending on the ground they will encounter. These tools can be easily changed manually, and adjusted to allow different cutting widths on the same wheel. The teeth are
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A wheel trencher or rockwheel has a toothed metal wheel. It is cheaper to operate and maintain than chain-type trenchers. It can work in hard or soft soils, either homogeneous (compact rocks, silts, sands) or heterogeneous (split or broken rock, alluvia, moraines). This is particularly true because a
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Landscapers and lawn care specialist may use a portable trencher to install landscape edging and irrigation lines. These machines are lightweight (around 200 pounds) and are easily maneuverable compared to other types of trenchers. The cutting implement may be a chain or a blade similar to a rotary
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With a micro trencher, the structure of the road is maintained and there is no associated damage to the road. Owing to the reduced trench size, the volume of waste material excavated is also reduced. Micro trenchers are used to minimize traffic or pedestrian disturbance during network laying. For
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A micro trencher is a "small rockwheel" specially designed for work in urban areas. It is fitted with a cutting wheel that cuts a microtrench with smaller dimensions than can be achieved with conventional trench digging equipment. Microtrench widths range from about 30 to 130 mm (1.2 to
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and chain trenchers. Selection of a trench excavation method must take into account a range of rock and machine properties. It is suggested that the advantages of using chain trenchers in suitable rock outweigh the limitations and may have cost benefits and fewer adverse environmental effects
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this reason they are often used to install lines such as fiber optic cables in public spaces. A micro trencher can work on sidewalks or in narrow streets of cities, and can cut harder ground than a chain trencher, including cutting through solid stone. They are also used to cut
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Due to its design the wheel may reach variable cutting depths with the same tool, and can keep a constant soil working angle with a relatively small wheel diameter (which reduces the weight and therefore the pressure to the ground, and the height of the unit for transport).
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The chain trencher is used for digging wider trenches (telecommunication, electricity, drainage, water, gas, sanitation, etc.) especially in rural areas. The excavated materials can be removed by conveyor belt reversible either on the right or on the left side.
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A tractor-mount trencher is a trenching device which needs a creeping gear tractor to operate. This type of trenchers is another type of chain trencher. The tractor should be able to go as slowly as the trencher's trenching speed.
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Another alternative are handheld trenchers that look similar to a chainsaw, weigh 20Kg (45lbs) or less, and can trench 0-700 mm (0-27 inches ) deep and a minimum of 50 mm (2 inches) wide.
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Trenchers come in different sizes and may use different digging implements, depending on the required width and depth of the trench and the hardness of the surface to be cut.
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does, rather than like a rasp (chain trencher). Consequently, it will be less sensitive to the presence of blocks in the soil. They are also used to cut
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A system of spacers and ejectors allows the excavated materials to be moved away from the edges of the trench to avoid possible “recycling”.
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placed in a semi-spherical configuration to increase the removal of the materials from the trench. The teeth are made of high strength
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to dig trenches at a rapid pace. The
Ukrainians were reportedly using these to secure the territory they captured in their
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5.1 in) with a depth of 500 mm (20 in) or less. These machines are sometimes radio-controlled.
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http://pipelinesinternational.com/news/advantages_and_limitations_of_using_chain_trenchers_in_rock/008036/#
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304:, Advantages and limitations of using chain trenchers in rock, Pipelines International September 2009
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A chain trencher cuts with a digging chain or belt that is driven around a rounded metal frame, or
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feeder unit and backfiller, so drain or textile may be placed and the trench filled in one pass.
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34:' Microtrenching in Chinatown (Manhattan), for installing fiber optic cables in microducts.
316:"A Very Rare Combat Vehicle Just Appeared in Southern Ukraine: A High-Speed Trench-Digger"
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There are various methods for excavating trenches in rock – principally drill and blast,
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In August 2023, tractor-mounted trenchers were revealed to be in use by the
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for road maintenance and to gain access to utilities under roads.
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for road maintenance and to gain access to utilities under roads.
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A Barber-Greene trencher. Barber-Greene is now a division of
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Wheel trenchers may be mounted on tracks or rubber tires.
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blade oriented so that it rotates in a vertical plane.
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168:A track trencher with a digging chain
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202:compared with alternative methods.
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290:References
265:geotextile
225:lawn mower
172:See also:
140:tool steel
136:HSLA steel
348:Trenchers
188:excavator
358:Category
271:See also
217:pavement
184:chainsaw
120:pavement
60:drainage
48:trenches
40:trencher
72:tractor
320:Forbes
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