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1. Quantity - State the number of Perforated Pieces required. |
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2. Thickness - Specify in gage numbers or in decimal inches. |
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3. Material - State kind of material required. |
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4. Width & Length - Unless otherwise specified, the length will be the long dimension of sheet. |
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5. Perforation Size - Specify the size of perforation in inches. |
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6. Arrangement of Perforations - Specify "Staggered" or "Straight Line" or other patterns. Normally the straight row of a staggered pattern will run the long way of the sheet. |
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7. Spacing of Perforations - This can be specified as the distance between hole centers, the percent of Open Area or in the case of small holes, as the number of holes per square inch. |
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8. Margins - If margins are not important specify "minimum or no margins." |
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9. Other information - For slotted perforations- specify whether the long dimension of the slot is parallel to the long or short dimension of the sheet or plate. |
Note: If ordering Perforated Screen Plates for Vibrating or Revolving Screening Equipment, ask your perforator for IPA bulletin #512.
