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2. Feller buncher - Wikipedia

   en.wikipedia.org/wiki/Feller_buncher

   A feller buncher is a type of harvester used in logging.It is a motorized vehicle with an attachment that can rapidly gather and cut a tree before felling it. Feller is a traditional name for someone who cuts down trees, [1] and bunching is the skidding and assembly of two or more trees. [2]

3. Forestry mulching - Wikipedia

   en.wikipedia.org/wiki/Forestry_mulching

   Time-lapse of Tigercat mulcher clearing brush. Forestry mulching is a land clearing method that uses a single machine to cut, grind, and clear vegetation.. A forestry mulching machine, also referred to as a forestry mulcher, forest masticator, or brushcutter, uses a rotary drum equipped with steel chipper tools ("teeth") or blades to shred vegetation. [1]

4. Harvester (forestry) - Wikipedia

   en.wikipedia.org/wiki/Harvester_(forestry)

   Before modern harvesters were developed in Finland and Sweden, two inventors from Texas developed a crude tracked unit that sheared off trees at the base up to 0.76 meters (30 in) in diameter was developed in the US called The Mammoth Tree Shears. After shearing off the tree, the operator could use his controls to cause the tree to fall either ...

5. Treehouse attachment bolt - Wikipedia

   en.wikipedia.org/wiki/Treehouse_Attachment_Bolt

   One of the main features of TABs is their strength, requiring fewer tree penetrations for robust fastening of a treehouse and hence less damage to a live tree. A typical TAB consists of a threaded metal bolt and a larger diameter collar. The latter provides an extra bending strength by bearing upon the compression strength of the tree grain. [1]

6. Excavator - Wikipedia

   en.wikipedia.org/wiki/Excavator

   Generally, the 3 pumps used in excavators consist of 2 variable displacement piston pumps and a gear pump. The arrangement of the pumps in the excavator unit changes with different manufacturers using different formats. The three main sections of an excavator are the undercarriage, the house and the arm. The boom, the front part that is ...

7. Shear (sheet metal) - Wikipedia

   en.wikipedia.org/wiki/Shear_(sheet_metal)

   An alligator shear, historically known as a lever shear and sometimes as a crocodile shear, is a metal-cutting shear with a hinged jaw, powered by a flywheel or hydraulic cylinder. Alligator shears are generally set up as stand-alone shears; however, there are types for excavators. The jaw size can range from 4 to 36 in (100 to 910 mm) long.