The textile industry is a large user of water, steam and hot oil unions. Weaving, dyeing and finishing processes are the largest users of rotating unions. Textiles go through a series of wet/dry processes. Drying and cooling processes use heated or cooled rolls or dryer cans utilizing rotating unions. Applications differ based on whether the textile is woven, knitted, or synthetic fibers.
Woven and Knitted Cloth Textiles
Both natural and synthetic fibers go through many processes before becoming
cloth including warping, sizing and slashing. Once woven or knitted, additional processing that require rotating unions includes singeing, bleaching, washing, dyeing, and printing. Knitted cloth requires similar processes with the major application known as compaction.
Synthetic Fiber, Slit Film and Monofilament
Synthetic or man-made fibers are most commonly produced by an extrusion
process. Once extruded, the fibers pass over a series of rolls that require rotating unions for heating and cooling. Unions are also used in the processing of the plastic pellets or chips used to make synthetic fiber, slit film and monofilament.
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Most common media used for cooling in a variety of applications including printing, plastics, tire and rubber, steel, and aluminum casting
Common media that expands the temperature range of water for both heating and cooling, primarily rolls
Media used for pneumatic applications that transmit air at specific pressures or volume, including clutch, brake, machine tool, holding, clamping
Media used for applications that deliver fluid pressure for actuation, clamping, and, indexing
Media used for hydraulic applications that deliver fluid pressure for actuation, clamping, indexing; brake fluid requires unique sealing technology vs. hydraulic
Most common media for machine tool applications; through-spindle coolant dispenses at the cutting surface for greater efficiency than flood cooling
Minimum quantity lubrication or MQL is a mixture of air and coolant prevalent in machine tool applications
Media used for heating of rolls for a variety of applications including plastics, paper, tire, and rubber
Media used in heating applications, primarily rolls for paper, corrugating, converting, tire and rubber, and food processing
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