#Cherry picker forklift training warwick full#
The term "cherry picker" has become generic, and is commonly used to describe articulated lifts (and more rarely all AWPs).Īnother type of aerial device is a straight boom lift or telescopic boom lift, which as its name suggests has a boom that extends straight out for direct diagonal or vertical reach by the use of telescoping sections, letting you take full advantage of the boom length range. It lets the picker standing in the transport basket pick fruit high in a tree with relative ease (with the jointed design ensuring minimum damage to the tree). This type of AWP is the most likely of the types to be known as a " cherry picker", owing to its origins, where it was designed for use in orchards (though not just cherry orchards). The most common type of aerial device are known in the AWP industry as knuckle boom lifts or articulated boom lifts, due to their distinctive shape, providing easy access to awkward high reach positions. Aerial devices are the closest in appearance to a crane – consisting of a number of jointed sections, which can be controlled to extend the lift in a number of different directions, which can often include "up and over" applications. Lightweight electrically powered units are gaining popularity for window-cleaning or other maintenance operations, especially indoors and in isolated courtyards, where heavier hydraulic equipment cannot be used. The different techniques also reflect in the pricing and availability of each type.Īerial devices were once exclusively operated by hydraulic pistons, powered by diesel or gasoline motors on the base unit. Most are powered by either hydraulics or possibly pneumatics. The key difference is in the drive mechanism which propels the working platform to the desired location. There are several distinct types of aerial work platforms, which all have specific features which make them more or less desirable for different applications. Lifting mechanisms Articulated lift being demonstrated Other uses for cherry pickers quickly evolved. Another early cherry picker manufacturer was Stemm Brothers, Leavenworth, WA. He went on to launch the Telsta Corporation, Sunnyvale, CA in 1953 to manufacture the device. Jay Eitel invented the device in 1944 after a frustrating day spent picking cherries using a ladder. Īs the name suggests, cherry pickers were initially developed to facilitate the picking of cherries. Underbridge units are also available to lift operators down to a work area. They may also be equipped with specialist equipment, such as carrying frames for window glass. Regardless of the task they are used for, aerial work platforms may provide additional features beyond transport and access, including being equipped with electrical outlets or compressed air connectors for power tools. They are usually capable of being set up and operated by a single person. They are designed to lift limited weights - usually less than a ton, although some have a higher safe working load (SWL) - distinguishing them from most types of cranes.
They are generally used for temporary, flexible access purposes such as maintenance and construction work or by firefighters for emergency access, which distinguishes them from permanent access equipment such as elevators. There are distinct types of mechanized access platforms and the individual types may also be known as a "cherry picker", "boom lift" or "scissor lift". Replacing an advertising poster in London using an aerial work platform.Īn aerial work platform (AWP), also known as an aerial device, elevating work platform (EWP), cherry picker, bucket truck or mobile elevating work platform (MEWP) is a mechanical device used to provide temporary access for people or equipment to inaccessible areas, usually at height. JSTOR ( April 2016) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed.įind sources: "Aerial work platform" – news Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.
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