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A typical roadheader. A roadheader, also called a boom-type roadheader, road header machine, road header or just header machine, is a piece of excavating equipment consisting of a boom-mounted cutting head, a loading device usually involving a conveyor, and a crawler travelling track to move the entire machine forward into the rock face.
The BMW N52 is a naturally aspirated straight-6 petrol engine which was produced from 2004 to 2015. The N52 replaced the BMW M54 and debuted on the E90 3 Series and E63 6 Series . The N52 was the first water-cooled engine to use magnesium/aluminium composite construction in the engine block. [ 1 ]
An engine part that collects the exhaust gases from multiple cylinders into one pipe. Also known as headers. Hydraulic manifold A component used to regulate fluid flow in a hydraulic system, thus controlling the transfer of power between actuators and pumps Inlet manifold (or "intake manifold")
The BMW N20 is a 1.6 and 2.0 L (98 and 122 cu in) turbocharged four-cylinder DOHC petrol engine with variable valve lift and variable valve timing which replaced the N53 (or BMW N52 in some markets) and was produced from 2011 to 2017 by BMW. Although the N20 is a four-cylinder engine, it is considered a replacement for the naturally aspirated ...
The M54 was phased out after the 2005 model years and replaced with the straight-4 N43 (in the 520i) and the straight-6 N52 engine (in the 525i and 530i). The model range was also expanded the same year to include a wider range of models like the 523i, 540i and 550i.
Multi-die headers allow for more complex parts to be formed as part of one process due to the above limitations of diameter ratio reductions. Some advantages of cold heading a part over using a CNC lathe or Swiss screw machine include reduced part cost both through production speed (60-400 parts per minute) and the minimal scrap generated from ...
Rondel (from Old French, the diminutive of roont "round", meaning "small circle") may refer to: . Rondel (dagger) or roundel, type of medieval dagger Rondel (armour), a circular piece of steel, as part of an armour harness, that normally protects a vulnerable point
English: Roundel of the Royal Danish Air Force. Also used by Army (until 1 July 2003) and Navy (until 1 January 2011). ... List of equipment of the Royal Danish Army;