Perforated chassis

preforated plates are widely used in the heat dissipation protection covers of mechanical equipment. They are generally made of cold-rolled steel plates and stainless steel plates. We can customize them with various hole diameters and sizes according to the customer's needs, such as round holes, square holes, hexagonal holes, and special-shaped holes, etc. With dedicated equipment, efficient production can be achieved, and the deformation of the punched holes can also be controlled.

In chassis manufacturing, "preforated plate" usually refers to a metal or composite material sheet with a regular pore structure, mainly used for functions such as heat dissipation, ventilation, weight reduction, electromagnetic shielding optimization, and structural support. 
Main application scenarios
Heat dissipation and airflow management
preforated plates are commonly used for the front, back, top, or side panels of computer cases, forming ventilation areas through punching holes, and cooperating with fans to achieve forced convection heat dissipation. For example, the colorful DLC-M9911 chassis is designed with ventilation holes on the side and front panels to enhance heat dissipation; Although the MG890 chassis does not explicitly use perforated panels, it has a circular air inlet with a dust-proof mesh at the front, reflecting a similar design concept
Electromagnetic compatibility (EMC) optimization
Punched metal plates can ensure a certain shielding effectiveness while allowing air circulation, balancing heat dissipation and EMC requirements. Some high-end computer cases use porous steel plates or aluminum plates as panel materials to improve heat dissipation efficiency while meeting FCC/CE certification requirements.

Structural lightweighting and rigidity balance
preforated design can reduce material usage, lower chassis weight, and maintain structural strength through reasonable hole patterns (such as honeycomb and hexagonal). For example, some partitions or brackets in aluminum profile chassis adopt punched structures, which balance lightweight and installation stability.