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Place of Origin: China (Mainland)
Brand Name: Rongde
Model Number: Punched plates
Function:
Shape:

Specifications

Punched perforated plates are available from stock with hole diameters from 0,3mm dia with large open areas in stainless steel 304 & 316 as well as carbon steel in sheets 2000x1000. Plate sizes of 6000x2000 can also be perforated to suit most filtration and separation applications. Thickness varies from 0,3mm to 20mm in carbon steel and 15mm in stainless steel

Normally the hole size of punched perforated plates in stainless steel is dictated by the ratio of hole diameter to plate thickness, which cannot be less than one.

However Rongde  has a very competitive advantage, particularly for critical perforations, where the hole diameter needs to be slightly smaller than the plate thickness and very close together and very small holes. 

Punched plates for use as filter screens and flour milling screens can be supplied with a variety of perforations including - round, square and slotted. They can also be supplied with perforated areas in special geometric shapes, for example trapezoidal or circular crowns and with different levels of surface finishing such as butter-finishing, sandblasting and electrolytic polishing.

Other perforations include decorative patterns for architectural purposes.

In addition to flat punched plates with small hole perforations we are also able to supply fabricated perforated cylinders flanged both ends, baskets, trays and screens in a combination of shapes and sizes in a very wide range of materials -: High tensile steel stainless steel, titanium, nickel, monel, incoloy, inconel, hastelloy, cupronickel alloy, non-metallic materials, brass, copper, aluminium, bronze, plastic, pvc, teflon etc.
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The most common required material are as following: 
Carbon steel sheet 
Galvanized steel sheet 
Stainless steel sheet 
Aluminum sheet 
Aluminum zinc steel sheet 

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Thickness or gauge for Perforated Metal Sheet 
Thickness of the metal sheets do not change during the perforation. Normally thickness is expressed in gauge. However, to avoid possible misunderstanding, we would suggest expressing them in inches or millimeters. 

Width and length for Perforated Metal Sheet 
The most common width and length are as following 
1000mm x 2000mm 1220mm x 2440mm 1250mm x 2500mm 
1250mm x 6000mm 1500mm x 3000mm 1500mm x 6000mm 

Margins for Perforated Metal Sheet 
Margins are the blank (un-perforated) area along the edges of the sheet. Normally the margin on the length are 20mm minimum, and margin along the width can be  minimum or at customers' requests. 

Hole arrangement for Perforated Metal Sheet 
Round hole are normally arranged in 3 types: 
Other hole patterns and hole arrangements can be custom made. 
Round hole, 60° , staggered 
Round hole, 45° , staggered 
Round hole, straight row 

Cutting & folding for Perforated Metal Sheet 
Rongde metal can do cutting and folding after perforating. 

Finish for Perforated Metal Sheet 
Rongde  metal can do the following finish according to customers' requirements. 

Natural finish for Perforated Metal Sheet 
Most of the perforated sheets are required to be natural finish no matter what kind of material they are. 

Oil spraying or Perforated Metal Sheet 
Some customers prefer the carbon steel perforated sheets to be oil sprayed to avoid the possible rusting because of the moisture during the long time sea shipping. 

Powder coating for Perforated Metal Sheet 
Rongde metal can do different colors powder coating, but minimum quantity might be required for some special colors. 

Packing for Perforated Metal Sheet 
Wooden pallets. 1 ton - 2.5tons (2200 lbs to 5500 lbs) per pallet. Each pallet will be packed by plastic bag.

Plain Steel Perforated Metal

 

 

Hole Diameter

Staggered Centers

Sheet Thickness

Open Area

 

0.045"

1.14mm

0.066?  

0.033-0.039"

0.84-0.99mm

37.00%

1/16"

1.59mm

3/32"

0.027-0.033"

0.68-0.84mm

41.00%

1/16"

1.59mm

1/8"

0.027-0.066"

0.68-1.68mm

23.00%

5/64"

1.98mm

1/8"

0.027-0.053"

0.68-1.35mm

35.00%

0.081"

2.06mm

1/8"

0.053-0.066"

1.35-1.68mm

38.00%

3/32"

2.38mm

5/32"

0.053-0.066"

1.35-1.68mm

33.00%

1/8"

3.17mm

3/16"

0.027-0.127"

0.68-3.23mm

40.00%

5/32"

3.97mm

3/16"

0.027-0.066"

0.68-1.68mm

63.00%

3/16"

4.76mm

1/4"

0.027-0.127"

0.68-3.23mm

50.00%

1/4"

6.35mm

3/8"

0.033-0.111" , 0.25"

0.84-2.82mm, 6.35mm

40.00%

3/8"

9.52mm

1/2"

0.053-0.082" , 3/16"

1.35-2.08mm, 4.76mm

51.00%

3/8"

9.52mm

9/16"

0.059" , 0.119"

1.50mm, 3.02mm

40.00%

1/2"

12.70mm

11/16"

0.033-0.127" , 3/16"

0.84-3.23mm, 4.76mm

48.00%

1/4" Hex

6.35mm Hex

0.285

0.027-0.033

0.68-0.84mm

76.00%

 

9.52mm Sq.  

Cane?  

0.053-0.066"

1.35-1.68mm

51.00%