Interior & Specialty
Interior Perforated Sheets
Sophisticated architectural ceiling and wall panels engineered for acoustic attenuation and NRC-rated performance.
Speakers Grill Perforated Sheet
Acoustically transparent protective grills engineered with high sound absorption coefficients (NRC) for acoustic grades.
Technical Outline
- Pattern IndexCNC-PRECISION
- Form FeasibilitySheets, Coils, Cut-Sizes
- Standard Pitch Feasibility0.5mm — 100mm
- Available MaterialsSS, MS, GI, Alum, Brass, Copper
- Tolerances±0.05mm (Micron Level)
Interior & Specialty
Speakers Grill Perforated Sheet
Manufactured to meet the rigorous standards of premium audio engineering, our Speakers Grill Perforated Sheets ensure total acoustic transparency with high sound absorption coefficients (NRC) for acoustic grades. Designed to protect sensitive transducer components without degrading high-frequency response, these grills are precision-flattened and coated with anti-resonant finishes to prevent micro-vibrations.
Key Features
Optimized open area ratio to eliminate acoustic impedance and distortion
High sound absorption coefficients (NRC) for acoustic grades
Finished in electrostatic powder coatings and PVDF finishes for durability
Raw material heat codes and mill test certifications available
Common Applications
Premium consumer audio cabinets and high-fidelity studio monitorsStadium public address systems and extreme-weather horn grillsAutomotive premium audio systems and door-card speakersDefense communication equipment and ruggedized intercom speaker grills
Request Custom Dimensions
Need custom perforation patterns, material grades, or specialized sheet dimensions? Our design team is ready to fabricate to your specific blueprint.
B2B Precision Center
Industrial Specification Calculator
Hole Parameters
Hole Size / Diameter (D)3.0 mm
0.5 mm20.0 mm
Center-to-Center Pitch (P)5.0 mm
1.0 mm40.0 mm
Engineering Calculation Model:
Formula: Open Area % = (D² × 90.69) / P². Staggered 60-degree orientations represent the optimal industrial standard for uniform load-bearing distributions and airflow pathways.
Computed Flow Density
32.65%Theoretical Open AreaInteractive Pattern Density Matrix* Orange accent highlights center staggered coordinates.
Material Specification Matrix
| Material Type | Thickness Range | Max Width feasibility | Hole Patterns | Surface Finishes |
|---|---|---|---|---|
| Stainless Steel (SS 304, 316) | 0.4mm to 10.0mm | 1500 mm | Round, Square, Hex, Custom slots | 2B, Hairline, Mirror Polish |
| Mild Steel (MS) / Carbon Steel | 0.5mm to 16.0mm | 2000 mm | All geometrical profiles | Oiled, Powder Coated, Primer |
| Galvanized Steel (GI) | 0.4mm to 4.0mm | 1500 mm | Standard patterns | Regular Spangle, Chromated |
| Aluminium (Grade 1000 - 6000 series) | 0.5mm to 6.0mm | 1500 mm | Square, Round, Facade shapes | Mill Finish, Anodized, PVDF |
| Specialty (Brass, Copper, Titanium) | 0.3mm to 3.0mm | 1000 mm | Acoustic, Fine decorative | Natural, Polished |
* Note: Custom sizes, raw material grades, and perforating dies can be machined in-house for unique requests.
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Partner with Ashokraj Industries for precision perforated metal solutions. Contact us for custom quotes and engineering consultation.