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Bottom loading arms. Top loading arms are used to load or unload road or rail tankers.Loading or unloading is done through the manhole on the top of the tanker. Top loading arms can also be used for tight-fill, vapor recovery, marine and other applications when used with specially designed and engineered components, such as vapor plates, tapered hatch plugs, and inflatable hatch seals. [1]
Specialising in loading arms for a range of applications, EMCO Wheaton manufactures systems for the loading and unloading of product for ships, ISO containers, rail cars and tank trucks. Products in this range include: • Marines loading arms • Top and bottom loading arms • Speciality arms • Access equipment and swivel joints
SafeRack is an American company that manufactures industrial safety products for truck, railcar and industrial loading applications. Its products include access gangways, fall protection systems, loading arms, safety cages and loading rack products. All SafeRack products are manufactured in Andrews, South Carolina, using robotic technology. Its ...
It is designed to carry heavy and oversized loads in such a way that the load makes up part of the car. The load is suspended between the two ends of the cars by lifting arms; the lifting arms are connected to an assembly of span bolsters that distribute the weight of the load and the lifting arm over many wheels.
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
The bottom gates on the pneumatic hoppers connect to a hose attached to industrial facilities' storage tanks. Air is injected to fluidize the railcar contents for unloading. [5] The hopper car was developed in parallel with the development of automated handling of such commodities, including automated loading and unloading facilities.
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In North America the term "railcar" has a much broader sense and can be used (as an abbreviated form of "railroad car") to refer to any item of hauled rolling-stock, whether passenger coaches or goods wagons (freight cars). [3] [4] [5] Self-powered railcars were once common in North America; see Doodlebug (rail car).