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A drilled micro hole screen plate is a precision-engineered metal plate with small-diameter holes created by CNC drilling or laser drilling, used for fine screening, filtration, separation, and material classification in industrial applications.
Compared with standard perforated plates, drilled micro hole plates allow higher precision, tighter tolerances, and smaller aperture sizes, making them suitable for fine particle separation and high-accuracy industrial screening.
These plates are widely used in mining, chemical processing, food production, paper machinery, and precision filtration systems.
A drilled screen plate is manufactured by drilling individual holes (step, cylindrical, or conical), while a perforated plate is usually made by punching holes using dies or stamping tools.
Key differences:
Drilled plates → higher precision, smaller holes, thicker materials
Perforated plates → faster production, larger holes, lower cost
Drilled plates → better for micro filtration and fine screening
Perforated plates → better for coarse screening and heavy-duty impact
A micro hole screen plate is used for:
Fine particle filtration
Powder classification
Precision screening systems
Slurry and liquid separation
Chemical and pharmaceutical processing
Paper pulp screening
Food-grade filtration systems
Also known as: Micro perforated plate / drilled sieve plate / precision screen plate
Manufacturing method: CNC drilling / laser drilling / step drilling
Hole diameter range: ultra-small to medium precision apertures
Material options: stainless steel, carbon steel, alloy steel, titanium
Function: fine separation, filtration, precision screening
Accuracy level: high-precision industrial grade
A drilled micro hole screen plate works by controlling particle passage through precisely engineered apertures.
During operation:
Material is fed onto the plate surface
Vibration, pressure, or flow distributes particles
Smaller particles pass through micro holes
Oversized particles remain on the surface
Continuous separation process occurs
Hole geometry (round, step, or conical) directly affects flow rate, clogging resistance, and separation accuracy.
Engineering Design
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Material Selection
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CNC Drilling / Laser Drilling
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Hole Shape Processing (step / cylindrical / conical)
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Deburring & Surface Finishing
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Heat Treatment (optional)
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Flatness Calibration
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Precision Inspection
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Packaging
Simple cylindrical holes for standard filtration.
Multi-diameter design to reduce clogging.
Tapered design improves material flow and reduces blockage.
High precision uniform flow control.
Stainless Steel 304 / 316
Carbon Steel (Q235 / Q355)
Alloy Steel
Titanium Alloy
Aluminum Alloy
Brass (special applications)
Stainless steel is most commonly used due to corrosion resistance and hygiene requirements.
Plate thickness: 1 mm – 30 mm
Hole diameter: ultra-small to medium precision range
Plate size: up to large industrial format sheets
Hole spacing: fully customizable
Open area: designed based on flow requirements
Surface finish: polished / sandblasted / anti-corrosion coating
High precision hole accuracy
Suitable for micro-scale separation
Excellent surface consistency
Custom hole geometry available
Strong corrosion resistance (stainless steel version)
Stable performance in continuous operation
Suitable for high-value industrial filtration systems
Drilled micro hole screen plates are widely used in:
Mining fine screening systems
Chemical filtration equipment
Pharmaceutical processing
Food and beverage filtration
Paper pulp screening systems
Precision industrial separators
Slurry separation systems
High-end material classification
| Drilled Micro Hole Plate | Perforated (Punched) Plate |
|---|---|
| Higher precision | Lower precision |
| Smaller hole sizes | Larger hole sizes |
| Suitable for fine filtration | Suitable for coarse screening |
| Slower manufacturing | Faster production |
| Higher cost | Lower cost |
| Better for precision industries | Better for heavy-duty mining |
When designing a micro hole screen plate, engineers consider:
Particle size distribution
Flow rate requirements
Material viscosity (if slurry)
Abrasion resistance
Hole geometry
Plate thickness
Clogging resistance
Equipment vibration frequency
Each screen plate is tested for:
Hole diameter accuracy
Pitch consistency
Flatness measurement
Surface defect inspection
Material certification (MTC)
Flow simulation test (optional)
It is a precision metal plate with CNC-drilled micro holes used for fine particle separation and industrial filtration.
Drilling allows smaller, more precise holes and supports thicker materials, making it ideal for fine filtration applications.
They are used in mining, chemical processing, food production, pharmaceuticals, and paper machinery industries.
Yes. Hole diameter, spacing, geometry, and layout can be fully customized according to application requirements.
Looking for a reliable manufacturer of drilled micro hole screen plates?
MetalKeen provides custom-engineered micro hole screen plates with CNC drilling and precision machining capabilities. We support full OEM manufacturing including material selection, hole design optimization, drilling process control, surface finishing, and inspection for high-precision industrial filtration systems.
