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Perforated sheet metal open area.
Perforated sheet has different hole types so they have different open area.
Open area also affects the amount and velocity of materials such as liquids or air that can pass through the perforated sheet.
The perforated metal sheet with high open area allows sounds to pass through easily as well as protects the speaker from any damage.
Most inventory 11 gauge and lighter has minimum solid side margins running the length of the sheet and no end margins.
Additionally it is ability to control noises for providing you an comfortable environment.
So it is widely used as speaker grilles.
Choose the percentage of open area desired in the perforated metal sheet or coil.
Below are various open area calculators for perforated metal.
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Calculation formula of the perforated sheet open area.
Margin end pattern.
Most inventory 11 gauge and lighter has minimum solid side margins running the length of the sheet and no end margins.
Open area is a major consideration when selecting a pattern on perforated sheet because it has a direct impact on the weight of the metal sheet.
60 degree round hole open area.
Click on the text to expand and enter figures into any two fields to obtain your calculation.
So if a specific profile has 30 open area this means 30 of the perforated metal sheet is holes and 70 is the metal such as aluminium or steel.
90 degree round hole open area.
Specify solid margin preferences on width and or length of sheet if required for your application.
Specify solid margin preferences on width and or length of sheet if required for your application.
Margin end pattern.
Hole diameter d center c open area oa.
How to calculate perforated metal sheet open area.
Marco specialty steel offers various resources like perforated metal open area calculations.
For example if the open area of the perforated sheet is 30 it means that 30 of the sheet is holes and 70 of the sheet is material.
Here is the commonly calculation formula of the open area.
45 degree round hole open area.
Choose the percentage of open area desired in the perforated metal sheet or coil.
Round 60 staggered center.
Click to see formulas for determining open area on our website.