The straddle carrier was developed on the basis of the original forklift series products in the 1950s. With the continuous updating of the products by the manufacturer, the container straddle carrier came out in the mid-1960s. The container straddle carrier is a mechanical device that integrates horizontal short-distance transportation, container stacking, and loading and unloading of container trucks. It is widely used in transfer station storage yards, etc. Compared with container trailers and automatic guided vehicles, it is more active and can independently load and unload containers; compared with gantry-type handlers and tire-type cranes, it has better mobility and flexibility.
A container straddle carrier is usually composed of a portal frame, power and transmission system, hydraulic system, electronic control system, container spreader and hydraulic lifting system, as well as steering, driving and braking systems, etc., which can realize door-to-door loading and unloading. According to the structure of the car body, it is mainly divided into three types: straddle carrier without platform and shared structure for straddle transportation and loading and unloading, straddle carrier with platform and shared structure for straddle transportation and loading and unloading, and straddle carrier with platform and straddle transportation and dedicated structure for loading and unloading.
According to different functions and heights, it is mainly divided into stacking straddle carriers and transport straddle carriers. The stacking container straddle carrier has a large frame structure and can stack two to four layers of containers. It is mainly used for horizontal transportation and stacking operations; the transport type container straddle carrier generally can only stack one layer of containers, so it is mainly used Horizontal short-distance transportation between docks and yards. In recent years, some large enterprises and research institutes have also successively researched and developed container straddle carriers, and their functions and operating speeds have also undergone new developments.
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