Perforated Sheets

Perforated sheet materials are used as screens in separators, walkways, sunscreens, ventilation, and decorative coverings. They are constructed by machining or punching holes in a piece of sheet metal or plastic. Perforated sheets are often stronger or more rigid than other mesh products because of their solid sheet structure. Wire mesh is an alternative to metal perforated sheet, but tends to be lightweight, flexible, and not as durable as other perforated and expanded sheet material.

Physical Specifications :

Opening size, overall width, and hole pattern are the most important characteristics of perforated sheets. Opening size is the diameter of each punched hole in a perforated sheet. For rectangular openings, select the opening width (smallest side of the rectangular opening) as a minimum value;select the opening length (longest side of the rectangular opening) as a maximum value.

Overall width is the width of the entire length of sheet. Specifying the correct width is important for sheet installation or fitting a sheet as part of a larger system. Sheet length is usually determined by the amount of material a buyer needs or is predetermined by the distributor to set lengths that they wish to sell.

Hole pattern is the pattern for how holes or punched shapes are ordered in a sheet. In straight patterns, the holes are in alignment horizontally and vertically. In staggered design, holes are also staggered evenly between rows. Holes come punched in many configurations, including round, square, or hexagonal shapes.

Materials of Construction

It is important to select a perforated sheet also based on the materials used in its construction. Material selection determines a sheet's strength, chemical and corrosion resistance, and hardness. Materials used to construct sheets include metals and Stainless Steel .

Metals and metal alloys tend to be strong and durable materials. Strength is an important quality for sheets because of their common use in heavy-duty industrial applications for separation or protection. The most common types of metals used to make perforated sheets are steel, stainless steel, and aluminum. Steel is used for its strength, stainless steel is used for its corrosion resistance, and aluminum is used for its lower density.

Perforated metals are very popular in contemporary architecture as they lend themselves to creative and unique designs. They also have a number of practical benefits:

Sun protection and climate control: Perforated metal sheets are excellent at providing rooms with air flow and shade, often used as sun protection screens in rooms that require ventilation. Although they appear to be a design element, their permeable nature allows the free movement of air, resulting in substantial energy savings on heating, ventilation and air conditioning.

Noise reduction: Perforated metal sheets are often used for noise reduction walls and roof systems. In noisy environments, they can limit the adverse effects of noise on workers’ health.

Balustrade screening panels: Perforated metal sheets are used in panels for balconies, stairways, and balustrades screens. They offer weather resistant protection coupled with an attractive design.

Other industries that utilize perforated metals are:

Food and beverage: Used for drain dryers, wine vats, fish farms, sorting machines, fruit & vegetable presses and baking trays.

Chemical and energy: Used for filters, gas purifiers, mine cages, coal washing, battery separator plates and centrifuges.

Automotive: Used for oil filters, radiator grilles, running boards, engine ventilation and motorcycle silencers.

Material development: Used for blast furnace screens, textile printers and felt mills, cement slurry screens and glass reinforcement.

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