Woodchipper

Large woodchippers are frequently equipped with grooved rollers in the throats of their feed funnels.

The woodchipper was invented by Peter Jensen (Maasbüll, Germany) in 1884; the "Marke Angeln" soon became the core business of his company, which already produced and repaired communal- and woodworking-machinery.

The original chipper design[2] employs a steel disk with blades mounted upon it as the chipping mechanism.

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 application of industrial disk chippers is to produce the wood chips used in the manufacture of particle board.

"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.

Although chippers vary greatly in size, type, and capacity, the blades processing the wood are similar in construction.

[7] Thirty-one people were killed in woodchipper accidents between 1992 and 2002 in the US, according to a 2005 report by the Journal of the American Medical Association.

[8] Joel and Ethan Coen's film Fargo features an infamous scene in which Peter Stormare, as Gaear Grimsrud, feeds the remains of Steve Buscemi's character, Carl Showalter, into a woodchipper.

Evil (2011) and Winnie-the-Pooh: Blood and Honey (2023) contain scenes depicting the use of a woodchipper as a murder weapon.