ENGINEERING TOOL

Wedge Wire Screen Open Area Calculator

Calculate open area percentage instantly. Free online tool trusted by engineers worldwide.

OPEN AREA--.--%Enter wire width and slot aperture below

Unit:Metric

Imperial

Quick Presets

Wire Width (mm)

Top width of the wedge wire profile

Slot Aperture (mm)

The gap between wedge wires

CROSS-SECTION DIAGRAM

Note: The diagram shows a cross-section of wedge wire screen. Wedge wires have a V-shaped profile (wider at top, tapering to a narrow point at bottom) to prevent clogging. The open area is the filtration space between adjacent wires.

The Formula Explained

Open Area (%) = (Slot Opening / (Wire Width + Slot Opening)) x 100

Example Calculation:

Given:

Slot Opening: 1.0 mm
Wire Width: 2.0 mm

Calculation:

Open Area = 1.0 / (2.0 + 1.0) x 100 = 33.33%

This formula calculates what percentage of the screen surface is actually open space versus solid material. A higher percentage means greater flow capacity and lower pressure drop, while a lower percentage typically means finer filtration.

Common Wire-Slot Combinations

Click any row to load values into the calculator. Wire width is typically 2-10x slot opening for structural integrity.

Slot Opening	Wire Width	Open Area %	Application
0.15mm	1.5mm	9.1%	Ion exchange, resin traps
0.25mm	1.5mm	14.3%	Beverage, fine filtration
0.5mm	1.6mm	23.8%	Food processing, pharmaceuticals
0.75mm	2mm	27.3%	Water filters, aquaculture
1mm	1.6mm	38.5%	High-flow water treatment
1mm	2.5mm	28.6%	Industrial water treatment
1.5mm	3mm	33.3%	Wastewater screening
2mm	3.5mm	36.4%	Mining, pulp & paper

Screen Type Comparison

Wedge wire screens achieve higher open area than perforated plate or woven mesh at equivalent separation sizes. This translates to higher throughput capacity per unit of screen area.

Screen Type	Open Area Range	Separation Size Range
Wedge Wire	15% to 65%	0.02mm to 50mm
Perforated Plate	5% to 40%	0.5mm to 25mm
Woven Mesh	20% to 50%	0.025mm to 10mm

Frequently Asked Questions

Open area is the percentage of open screening surface relative to total surface area. It directly affects flow capacity and filtration efficiency. Higher open area means better flow rates and lower pressure drop.

This calculator uses the industry-standard formula verified against multiple sources including manufacturer datasheets and engineering handbooks. Results are accurate to two decimal places, suitable for engineering design purposes.

Higher open area means greater flow capacity, lower pressure drop, reduced clogging risk, longer service life, and better energy efficiency.

Yes! This basic calculator works for all screen types. For advanced cylinder-specific calculations including support rod effects, try our Cylinder Design Tool.

Click the "Request Quote" button after calculation. Your values will automatically pre-fill our RFQ form, making it quick and easy to get a custom quote from our engineering team.

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