1. Product Overview
Punched Hole Metal Sheet, also known as Perforated Metal, is a sheet product that has been mechanically or manually stamped or punched to create a pattern of holes, slots, or decorative shapes. Using advanced CNC technology, we can transform various metal plates into functional and aesthetic components. It is widely used in architecture, acoustics, industrial filtration, and grain drying due to its excellent strength-to-weight ratio and customizable open area.
2. Manufacturing & Craftsmanship
Our production process emphasizes precision and structural integrity:
CNC Perforating: High-speed CNC feed systems ensure exact hole positioning and consistent pitch across large sheets.
Leveling & Flattening: After punching, sheets often buckle. We use precision leveling machines to restore a high degree of flatness.
Shearing & Notching: Sheets can be cut to custom sizes or notched for specific assembly requirements.
Surface Finishing: Depending on the material, we offer:
Anodizing/Powder Coating: For aesthetic architectural facades.
Hot-Dipped Galvanizing: For heavy-duty industrial or outdoor environments.
Pickling & Polishing: For stainless steel to ensure a clean, burr-free surface.
3. Technical Characteristics
Versatility: Capable of producing holes from 0.5{mm} to 100{mm} in diameter.
Acoustic Absorption: When used with sound-absorbing material, perforated sheets are excellent for noise control in ceilings and walls.
Ventilation & Shielding: Provides high airflow and light dissipation while maintaining structural security.
Durability: Unlike woven mesh, punched sheets are a single piece of metal, so they cannot unravel.
4. Technical Parameters
| Parameter | Specification |
| Materials | Stainless Steel (304, 316), Carbon Steel, Aluminum, Galvanized Steel, Brass |
| Hole Shapes | Round, Square, Slotted, Hexagonal, Decorative |
| Sheet Thickness | 0.3{mm} - 15.0{mm} |
| Hole Diameter | 0.5{mm} - 100{mm} |
| Pitch (Center to Center) | Customizable based on Open Area requirement |
| Open Area | 10% - 70% |
| Standard Sheet Size | 1000x2000{mm}, 1220x2440{mm}, 1250x2500{mm} |
5. Key Applications
Architecture: Sunshades, balconies, facades, and interior partitions.
Industrial: Filter cylinders, centrifuge screens, and grain sieves.
Equipment: Speaker grilles, machinery guards, and protective venting.
Environment: Wind and dust control walls, sound barriers for highways.







