Turntables are horizontal, rotatable powered table mechanisms for transferring objects between conveyors that are in angular relation to one another. They often provide both loading and unloading of their contents to and from a conveyor. In order to increase productivity and ergonomics in any manufacturing operation, equipment such as turntables are a small but integral part of the total process to maximize workplace efficiency. By using turntables operator fatigue can be reduced. Operators can focus on assembly or other production process rather than have to struggle with the material handling aspect of their operation. Turntables are also ideal for loading and unloading of pallets and other containers when minimum floor space is a concern. Turntables keep production operations moving without interruption.
Important specifications for turntables include load capacity, maximum dimension or diameter and speed. The load capacity is the maximum weight or force supported by the turntable. This will dictate the weight of the load. The maximum dimension or diameter is the width of a rectangular turntable and the diameter of a circular turntable. This will dictate the size of the load to be put on the turntable. The speed is the velocity at which the turntable rotates.
Turntables are commonly powered by air, or by hand, or by a motor. Air powered turntables have cylinders or air motors powering the turning action of the table. Manual turntables are rotated manually by a crank or lever. Motors provided automated turning. Turntables can be actuated by a pushbutton mechanism. Some manufacturers will provide integral clamps for handling drums or odd shaped packages. Some turntables also have the ability to tilt for the facilitation of dumping the contents of the table. Fixed and retractable rotation stops can be positioned at 90 or 180 degrees for positioning at specific workstations.
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Tilt tables are designed to tilt so that material can be completely removed from them.