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issues. If an operator becomes snagged on material being fed into the machine, injury or death is very likely. Hydraulically fed drum chippers have largely replaced conventionally-fed machines. These chippers use a set of hydraulically powered wheels to regulate the rate of feed of material into the chipper drum.
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the chipping mechanism. The chips exit through a chute and can be directed into a truck-mounted container or onto the ground. Typical output is chips on the order of 2.5–5 cm (1–2 in) across in size. The resulting wood chips have various uses such as being spread as a ground cover or being fed into a
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Large woodchoppers are frequently equipped with grooved rollers in the throat of their feed funnels. Once a branch has been gripped by the rollers, the rollers transport the branch to the chipping blades at a steady rate. These rollers are a safety feature and are generally reversible for situations
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exist. "Whole tree chippers" and "Recyclers", which can typically handle material diameters of 60–180 cm (2–6 ft) may employ drums, disks, or a combination of both. The largest machines used in wood processing, often called "Tub or
Horizontal Grinders", may handle a material diameter of
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The original chipper design employs a steel disk with blades mounted upon it as the chipping mechanism. This technology dates back to an invention by German
Heinrich Wigger, for which he obtained a patent in 1922. In this design, (usually) reversible hydraulically powered wheels draw the material
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Tree chippers are typically made of a hopper with a collar, the chipper mechanism itself, and an optional collection bin for the chips. A tree limb is inserted into the hopper (the collar serving as a partial safety mechanism to keep human body parts away from the chipping blades) and started into
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Conventionally-fed drum chippers use the drum as the feed mechanism, drawing the material through as it chips it. These are colloquially known as "chuck-and-duck" chippers, due to the immediate speed attained by material dropped into the drum. Chippers of this type have many drawbacks and safety
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Drum chippers employ mechanisms consisting of a large steel drum powered by a motor. The drum is mounted parallel to the hopper and spins toward the chute. Blades mounted to the outer surface of the drum cut the material into chips and propel the chips into the discharge chute. Commercial-grade
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Commercial-grade disk-style chippers usually have a material diameter capacity of 15 to 45 cm (6 to 18 in). Industrial-grade chippers (tub grinders) are available with discs as large as 4 m (160 in) in diameter, requiring 3,000 to 3,700 kW (4,000 to 5,000 hp). One
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2.4 m (8 ft) or greater, and use carbide tipped flail hammers to pulverize wood rather than cut it, producing a shredded wood rather than chip or chunk. These machines usually have a power of 150–750 kW (200–1,000 hp). Most are so heavy that they require a
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A Yardbeast 2090, showing a chipper shredder configuration. It is distinguished by two dedicated feed hoppers, for chipping and shredding. This type of machines use a disk rotor with one or more blades and a cluster of hammers and flails to reduce the size of the material.
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from the hopper towards the disk, which is mounted perpendicularly to the incoming material. As the disk is turned by a motor, the blades mounted on the face of the disk cut the material into chips. These are thrown out the chute by flanges on the edges of the disk.
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to do their work (although some use drums). The chipping blades are mounted on the face of the flywheel, and the flywheel is accelerated by an electric motor or internal combustion engine.
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from 2 to 700 kilowatts (3 to 1,000 horsepower). There are also high power chipper models mounted on trucks and powered by a separate engine. These models usually also have a hydraulic
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Although chippers vary greatly in size, type, and capacity, the blades processing the wood are similar in construction. They are rectangular in shape and are usually 4–10 cm (
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The cutting blades of a small electric chipper. The blades can be removed, by loosening the bolt in the center, to facilitate sharpening or for replacement.
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45:. They are often portable, being mounted on wheels on frames suitable for towing behind a truck or van. Power is generally provided by an
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158:, Germany) in 1884, the "Marke Angeln" soon became the core business of his company, which already produced and repaired communal- and
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343:'s character, Carl Showalter, into a woodchipper. The scene, according to the film's special edition DVD, was based on the 1986
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Thirty-one people were killed in woodchipper accidents between 1992 and 2002 in the US, according to a 2005 report by the
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to prevent further infestation. City government acquires and operates chippers as needed, including for seasonal use.
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Parks
Department's forestry crew to demonstrate the use of a power chipper to pulverize used natural Christmas trees.
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drum-style chippers usually have a material diameter capacity of 25 to 60 cm (9 to 24 in).
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application of industrial disk chippers is to produce the wood chips used in the manufacture of
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A portable woodchipper and truck with wood chips collected in the truck bed.
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A modern conventional-style drum chipper "Bandit
Industries Model 1290H"
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to be transported. Smaller models can be towed by a medium duty truck.
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This type of machine is used to chip large pieces of wood.
284:–2 in). Chipper blades are made from high grade
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Tree chipper mounted by side to tree processing into
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Machine used for reducing wood into smaller woodchips
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588:"Man killed in wood-chipper accident is identified"
68:Most woodchippers rely on energy stored in a heavy
695:"How a Labour rebel became friends with US hawks"
827:Chipper/Shredder Safety, Kansas State University
428:"RIVERDALE; After Much To and Fro, an Oak Falls"
617:s wood-chipper turns 20: A brief oral history"
552:"Chipper, Stump Grinder. Solicitation Awarded"
154:The woodchipper was invented by Peter Jensen (
41:(generally tree limbs or trunks) into smaller
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484:"DE350958C - Wood chopper - Google Patents"
360:to murder dissident citizens of his country
315:Journal of the American Medical Association
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785:"Tucker and Dale vs. Evil Rotten Tomatoes"
339:, as Gaear Grimsrud, feeds the remains of
805:"Winnie the Pooh: Blood and Honey Review"
727:"Saddam Executed; An Era Comes to an End"
648:""All about the Woodchipper Murder Case""
822:brush chipper for biomass, Vermeer India
556:The City Record Online (CROL) - NYC.gov
525:"Felling Trees Before Beetle Eats Them"
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129:Wood chips from a small garden chipper.
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758:O'Neill, Brendan (February 25, 2004).
739:from the original on February 23, 2015
7:
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454:Sanford Nowlin (November 21, 2013).
335:features an infamous scene in which
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760:"The missing people-shredder"
523:David Rohde (April 6, 1997).
143:biomass for energetic burning
25:Woodchipper (click for video)
497:Tim Cox (December 1, 2021).
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670:"The Woodchipper in Fargo"
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47:internal combustion engine
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368:Tucker and Dale vs. Evil
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1603:Agricultural machinery
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807:. September 30, 2011.
735:. December 30, 2006.
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572:. December 27, 1997.
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1531:Cutting and abrasive
1513:WikiProject Forestry
793:. February 16, 2023.
674:Visit Fargo-Moorhead
354:It was claimed that
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503:Timberline Magazine
398:Ramial chipped wood
393:Industrial shredder
327:Joel and Ethan Coen
1623:Forestry equipment
1396:Hydraulic debarker
1371:Firewood processor
530:The New York Times
463:.com (San Antonio)
433:The New York Times
322:In popular culture
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703:. June 22, 2003.
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351:Visitors Center.
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1490:
1468:
1450:
1386:Hand compass
1338:Steam donkey
1223:Lumber edger
1208:Crosscut saw
1153:Log splitter
1078:Fire flapper
1033:Tree caliper
1001:Inclinometer
986:Cruising rod
935:(Tuley tube)
933:Tree shelter
929:(dibble bar)
917:Root trainer
799:
788:
779:
767:. Retrieved
764:The Guardian
763:
753:
741:. Retrieved
730:
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709:. Retrieved
700:The Guardian
698:
689:
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673:
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656:the original
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31:tree chipper
30:
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1581:Woodworking
1451:Woodchipper
1243:Two-man saw
1158:Marking axe
1139:(shake axe)
1038:Wedge prism
1011:Rangefinder
971:Angle gauge
958:Mensuration
891:Caulk boots
536:January 16,
508:January 16,
468:January 16,
461:BizJournals
439:January 16,
371:(2011) and
160:woodworking
63:papermaking
35:woodchipper
1597:Categories
1469:Categories
1291:Helicopter
1132:Brush hook
966:3D scanner
939:Tree spade
912:Pottiputki
410:References
403:Tree baler
225:See also:
1501:equipment
1479:equipment
1431:Tree tyer
1411:Log flume
1391:Hand hook
1321:Skid cone
1316:Pike pole
1311:Pickaroon
1296:Log truck
1286:Harvester
1276:Forwarder
1266:Cant hook
1100:(rakehoe)
1083:Fire rake
1073:Driptorch
1028:Relascope
1023:Microtome
922:Seed trap
870:equipment
164:machinery
43:woodchips
1536:Forestry
1526:Cleaning
1406:Log pond
1366:Denailer
1281:Go-devil
1218:Head saw
1191:Chainsaw
1127:Broadaxe
1122:Billhook
1093:Helitack
898:(hoedag)
863:Forestry
769:July 22,
743:July 17,
737:Archived
732:ABC News
711:July 17,
705:Archived
599:July 22,
381:See also
329:'s film
290:chromium
227:Tritucap
156:Maasbüll
78:clothing
70:flywheel
59:digester
1561:Masonry
1551:Kitchen
1491:Commons
1416:Machete
1326:Skidder
1258:Logging
1248:Whipsaw
1228:Polesaw
1213:Dragsaw
1186:Bucksaw
1181:Bow saw
1143:Hatchet
1104:Pulaski
907:Mattock
615:"'Fargo
302:chipped
279:⁄
265:⁄
150:History
61:during
1571:Mining
1541:Garden
1436:Tsakat
1343:Yarder
1306:Peavey
1148:Labrys
1098:McLeod
896:Hoedad
679:May 7,
628:May 7,
623:EW.com
308:Safety
252:Blades
1576:Power
1496:tools
1474:tools
1359:Other
1348:swing
1238:Resaw
1061:DC-10
1016:laser
981:Chain
866:tools
332:Fargo
286:steel
221:Other
170:Types
51:winch
1546:Hand
1173:Saws
1137:Froe
1114:Axes
1066:UAVs
868:and
771:2023
745:2014
713:2014
681:2019
630:2019
601:2008
538:2023
510:2023
470:2023
441:2023
200:Drum
175:Disc
39:wood
33:or
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