Weight measuring transducers are manufactured from 3 diverse materials. Tool Steel, Aluminum, or Stainless Steel.
Tool steel elements are probably the most preferred tranducers utilized nowadays. The cost-to-performance percentage is superior, in comparison to other materials found in load cell design. The most common alloy used is 4330. Tool steel load cells are affordable, have a big capacity range and are best utilized in dry applications.
Aluminum is mostly employed in single point, small capacity applications. Aluminum is the lowest priced of the three components used to produce load cells. Aluminum transducers are limited by their low capacity assortment and ought not come in contact with humid or chemical circumstances.
The third material used for load cell manufacturing is stainless-steel. This metal has the ideal overall performance of any of the stainless derivatives. Stainless steel load cells are more expensive than tool steel or aluminum, however their amount of resistance to corrosion means they are a great alternative in moist or harsh purposes.
Another important item to take into consideration when developing a weighing system is how the load cell's internal elements are protected from the surroundings.
Environmentally sealed is utilized to illustrate several techniques, but in the long run is achieved by one or more of the following: rubber boots, glued on covers or potting the gauge cavity of the load cell. This type of sealing will protect the load cell from deterioration a result of debris and dust and moderate humidity caused by splashing of water. Under no circumstances will the load cell be protected from immersion under water or being subjected to high pressure cleaning. One more sealing technique used on loadcells is hermetically sealed. This contains a welded cover or sleeve that encapsulates the gauge pocket. The load cell cable entry area also implements a welded barrier in order to avoid moisture from wicking in the load cell, and shorting it out. This method is mostly used with stainless steel load cells as a stainless, hermetically sealed load cell should just be used in heavy wash down or chemical applications. This makes for a higher priced load cell but if longevity in a hostile environment is preferred, this is the most cost effective answer in the long run.
A welded seal loadcell is similar to a hermetically sealed cell, with the exception of where the load cell cable comes out. A welded seal cell usually has the same load cell cable attachment as the environmentally sealed cell. In some instances, the welded sealed cell may have a conduit adapter for the load cell cable, providing some degree of protection. While the gauge area itself is safeguarded by the welded seal, the cable entry will not be. Welded sealed load cells are for use where the cell might get wet occasionally, but aren't meant for heavy wash down applications.
Tool steel elements are probably the most preferred tranducers utilized nowadays. The cost-to-performance percentage is superior, in comparison to other materials found in load cell design. The most common alloy used is 4330. Tool steel load cells are affordable, have a big capacity range and are best utilized in dry applications.
Aluminum is mostly employed in single point, small capacity applications. Aluminum is the lowest priced of the three components used to produce load cells. Aluminum transducers are limited by their low capacity assortment and ought not come in contact with humid or chemical circumstances.
The third material used for load cell manufacturing is stainless-steel. This metal has the ideal overall performance of any of the stainless derivatives. Stainless steel load cells are more expensive than tool steel or aluminum, however their amount of resistance to corrosion means they are a great alternative in moist or harsh purposes.
Another important item to take into consideration when developing a weighing system is how the load cell's internal elements are protected from the surroundings.
Environmentally sealed is utilized to illustrate several techniques, but in the long run is achieved by one or more of the following: rubber boots, glued on covers or potting the gauge cavity of the load cell. This type of sealing will protect the load cell from deterioration a result of debris and dust and moderate humidity caused by splashing of water. Under no circumstances will the load cell be protected from immersion under water or being subjected to high pressure cleaning. One more sealing technique used on loadcells is hermetically sealed. This contains a welded cover or sleeve that encapsulates the gauge pocket. The load cell cable entry area also implements a welded barrier in order to avoid moisture from wicking in the load cell, and shorting it out. This method is mostly used with stainless steel load cells as a stainless, hermetically sealed load cell should just be used in heavy wash down or chemical applications. This makes for a higher priced load cell but if longevity in a hostile environment is preferred, this is the most cost effective answer in the long run.
A welded seal loadcell is similar to a hermetically sealed cell, with the exception of where the load cell cable comes out. A welded seal cell usually has the same load cell cable attachment as the environmentally sealed cell. In some instances, the welded sealed cell may have a conduit adapter for the load cell cable, providing some degree of protection. While the gauge area itself is safeguarded by the welded seal, the cable entry will not be. Welded sealed load cells are for use where the cell might get wet occasionally, but aren't meant for heavy wash down applications.
About the Author:
Producing reports on issues like weighing equipment and weighing companies is the speciality of contributor Art Quinn
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