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Telescopic cylinders are a special design of a hydraulic cylinder or pneumatic cylinder as well as pulley system which provide an exceptionally long output travel from a very compact retracted length. Typically the collapsed length of a telescopic cylinder is 20 to 40% of the fully extended length depending on the number of stages. [1]
Telescoping in mechanics describes the movement of one part sliding out from another, lengthening an object (such as a telescope or the lift arm of an aerial work platform) from its rest state. [1] In modern equipment this can be achieved by a hydraulics , but pulleys are generally used for simpler designs such as extendable ladders and amateur ...
In 1959 crane expert R.H.Neal, hydraulics specialist F.Taylor, and design director Bob Lester, integrated all three and modernized cranes. The Coles Hydra Speedcrane appeared in 1962, further modified with the 10-ton fully telescopic hydraulic boom in 1966, followed in 1968 by the 30-ton "Husky" military versions with four-wheel drive .
A telescopic mobile crane with truss luffing jib. A telescopic crane has a boom that consists of a number of tubes fitted one inside the other. A hydraulic cylinder or other powered mechanism extends or retracts the tubes to increase or decrease the total length of the boom. These types of booms are often used for short term construction ...
In the event that a collision becomes imminent, the system can send a command to the crane's control system, ordering it to slow down or stop. [1] An anti-collision system can describe an isolated system installed on an individual tower crane. It can also describe a site wide coordinated system, installed on many tower cranes in close proximity.
Link-Belt Cranes is an American industrial company that develops and manufactures heavy construction equipment, specializing in telescopic and lattice boom cranes. [ 1 ] [ 2 ] Link-Belt is headquartered in Lexington, Kentucky , and is a subsidiary of the Japanese conglomerate , Sumitomo Heavy Industries .
A control panel is a flat, often vertical, area where control or monitoring instruments are displayed or it is an enclosed unit that is the part of a system [1] that users can access, such as the control panel of a security system (also called control unit).
A telescopic handler, also called a lull, telehandler, teleporter, reach forklift, or zoom boom, is a machine widely used in agriculture and industry. It is somewhat like a forklift but has a boom ( telescopic cylinder ), making it more a crane than a forklift, with the increased versatility of a single telescopic boom that can extend forwards ...