Sprue Bush

The following points are relevant when explaining sprue bush weight:

• Raw material consumption is dependent on the tool
• Raw materials requirements must be considered
• Raw material costs must be considered
• If changing a tool, a recalculation of the sprue bush is needed
• Possible dependence between machine and tool

On the Tool Work Center Card, the Sprue Bush Weight for each tool can be specified on the Tool FastTab.

As with the other fields on this FastTab, the sprue bush weight is transferred to the Work Center Prod. Rate Card page where it can be customized for each work center.

The value entered in the Weight Unit of Measure field on the Process Manufacturing Setup page ensures that the sprue bush weight and the item are calculated using the same unit of measure.

In addition to ensuring the correct calculation, the Weight Unit of Measure field must be filled in because the sprue bush weight from the tool must be converted into a percentage for the raw materials in the component lines of the production order. This is due to the increasing amount of raw materials because of the scrap %.

Note

Sprue Bush is calculated for components used in recipes. The calculation is not supported for components of Production BOMs.

Sprue Brush Weight from Work Center Production Rate

Sprue Bush increases the expected quantity of Production Order components like scrap. It represents additional material needed for production. It is entered on Work Center Production Rates as weight related to the Prod. Rate Unit of Measure field and will be converted into a percentage in the Production Order components on calculation.

See Also

Unit of Weight and Unit of Volume

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