Perforated Sheets-Huarun Perforated Metal Factory

Perforated Metal : The Buying Guide

We provide a brief guide to help you understand the standard nomenclature used for the specification of different types of perforated sheet.

Follow Our Guidelines

Quantity
Thickness or Gauge
width & length
Perforations (hole center, hole pattern, hole size etc.)
Hole shape (round, square, slot etc.)
Type of material (SUS, carbon steel, aluminum, plastic)
End pattern
Margins or Special borders
Secondary operations (bolt holes, forming, painting, notching, etc.)
Packaging (crating etc.)
How is a perforated sheet made?

A perforated sheet is a sheet or coil of material made from metal or sheet that contains holes punched by a die. The shape of the hole is determined by the shape of the die. For perforated with a round hole pattern, the die is circular.

Quantity

Quantity is the number of full sheets or cut pieces you need. You should give the exact quality. So we can give you the proper quotation.

Thickness or Gauge

Thickness is the measurement from the top surface to bottom surface of the material. Gauge is the most common measurement, but thickness can also be measured in fractional in millimeters. We can manufacture a wide range of thick sheet verifying from 0.2mm to 15mm.

Length and Width

Length is the overall measurement of the long side of the sheet; width is the overall measurement of the short side of the sheet. Note that mill tolerances for length and width apply to stock sheets unless otherwise specified. The standard sheet size is 1000mm * 2000mm and 1250mm * 2500mm. We also can process the special product for your requirement if you tell us the exact specification.

Open Area

Perforated sheets contain holes and material. Open area is the total area of the holes divided by the total area of the sheet and is expressed as a percent. In other words, open area describes how much of a sheet is occupied by holes. If a perforated sheet has 70 percent open area, then 70 percent of the sheet is holes and 30 percent is material.
Hole Center

Hole Center is the distance from the center of one hole to the center of the nearest hole in the next adjoining row. Hole center is one of two measures of perforation spacing. The other is open area. Because hole center and open area measure essentially the same property, you need specify only one or the other, not both.

Hole Pattern

Hole pattern is the arrangement of holes on a sheet-either staggered or straight rows. In a staggered hole pattern, the direction of the stagger is normally parallel to the short dimension of the sheet.

The standard pattern is 60° staggered. It is the strongest, most versatile, and economical pattern of the perforated choices.

Hole Size

Hole size is the diameter of the perforation. We carries a wide range of round hole sizes (from 0.5mm to100mm ) and special order required as long as it meets minimum hole size requirements. As a rule of thumb, the hole diameter should be at least the same size as the thickness of the perforated material or larger. Preferably, the hole should be at least twice the size of the material thickness.

End Pattern

End pattern is the pattern of the perforations at the beginning and the end of the sheet. End patterns are either finished or unfinished. An unfinished end pattern is standard. A finished end pattern requires special tooling and is typically more expensive.

Bar Width

Bar width is the measure of the material between the outer edge of one hole to the outer edge of the adjoining hole. If you designate bar width, be sure that the bar width meets the guidelines for minimum bar width. As a rule of thumb, the bar width should larger than the thickness of the material. Preferably, the bar will be at least twice the material's thickness.

Margins or special borders

Margins are the blank area along the edges of the sheet. The standard sheet is the minimum margins along the length and no margins along the width.
If you purchase the product with special margins, you should provide the width of each margin on all four sides (measured from the edge of the sheet to the edge of the first hole) and the direction to which the margin is parallel (side or length dimension). The standard sheet is the minimum margins along the length and no margins along the width. Manufacturing considerations may affect margins. If the margins requested are not possible, we will replace it with the similar products as your consideration.

Tolerances

There are tolerances on thickness, bars, openings, flatness, and shearing for perforated products. You should specify a specific tolerance, so we can give you a precise product.

Secondary operations

We have a full and comprehensive finishing service for all of our materials including cutting, notching, rolling, annealing, slitting, forming, welding painting and anodizing.

Packaging

We can delivery the goods to our customer by truck, train or ship 

About HuaRun

Huarun is located in Anping County which is named “the hometown of wire mesh” in China. Perforated metal is our key product. We are acknowledged as one of the leading manufacturers in this sector due to our high quality products as well as reasonable price and our considerate service.

Quality is a state of mind. The automotive CNC perforating machine and an extensive range of die in stock enable us to manufacture the perfect perforated products that match the strict quality requirements of international market which has earned us the reputation of being a quality-oriented company.

Perforated metal is widely used as filters, screens, shields, and guards because of the feature of controlling the passage of air, light, liquid, solids, heat, and waves. With these abilities, perforated materials has applications such as dishwashers and cooling counters, speaker covers, automotive grills and exhaust components, airplane engine silencers, grain dryers, microwave ovens, computer cabinets, and so on. Other applications include design applications such as infill panels, facades, fixtures, and aesthetics in architectural.

We can offer you a very competitive price because of our low labor price and our abundant raw material.

Customer is the God. We are a company that customer’s satisfaction is our priority. Our staff is committed to a policy to ensure a continuous improvement to the product. Some example of our perforated metal patterns are listed in the site but not limited to these. Maybe you can’t find the exact product. Please tell us. Our experienced die experts will work closely with you to design the product for your criteria.

For over ten years, we have served a wide variety of markets, and provided creative solutions for our customers. Our work team has the knowledge??experience and dedication to successfully meet your perforating needs.

Huarun. The choice for perforated metal.
Huarun Perforated Metal Factory
Add: Kehulin Development Area, Anping, Hengshui, Hebei, China
Tel: 0086 318 7526560 7523488
Fax:0086 318 7528757
Email: sales@perforated-metal.org