More rigid and stronger then woven wire cloth, the perforated metal sheets offer maximum resistance to wear & tear. Perforated metal sheets find applications for strainers, Coarse filters and screens for seiving, straining, filtering, grading & polishing processes. Metal sheets are punched / perforated with different types of holes in various perforation patterns to suit individual application. 

Material of Construction 

In addition to Mild Steel, Galvanised Iron & Stainless Steel sheets, Copper, Brass, Bronze, Aluminium, Nickel, Lead, Tin plate & Zinc sheets can be perforated. Besides metal sheets, Paper, Boards, Plastic, Rubber and Raxine sheets can also be perforated within certain limitations. 

Hole Types  

Diamond Holes

Hexagonal Holes

Herring Bone Holes

Perforation Patterns 

For Round Holes 
1. 60° Staggered Far Apart  
2. Straight 
3. 60° Staggered Close 
4. 45° Staggered Far Apart 
5. 45° Staggered Close 

For Sqaure Holes 
1. Staggered Parallel to Width Close 
2. Staggered Parallel to Length Close 
3. Straight 
4. Diamond 
5. Staggered Parallel to Width Far Apart 
6. Staggered Parallel to Length Far Apart 

For Slot Holes 
1. Oblong Slot Parallel to Width 
2. Oblong Slot Parallel to Length 
3. Oblong Slot End Staggered Parallel to Width 
4. Oblong Slot End Staggered Parallel to Length 
5. Oblong Slot Side Staggered Parallel to Width 
6. Oblong Slot Side Staggered Parallel to Length 

For Diamond,Hexagonal and Herring Bone Holes 
1. Herring Bone Normal 45° to Width 
2. Herring Bone Normal 45° to Length 
3. Diamond Parallel to Width 
4. Diamond Parallel to Length 
5. Hexagonal Parallel to Length 
6. Hexagonal Parallel to Width 

Hole Sizes 

For Round Holes 
Perforated range : 0.5 mm Dia to 75 mm Dia Holes 
Holes can ber perforated with diameter equal to material thickness, subject to distance between two holes. 

 For Sqaure Holes 
Perforated range : 3 mm Dia to 75 mm Size 

 For Slot Holes 
Slot length range from 6 mm to 75 mm and slot width range from 0.5 mm to 25 mm  
Slot can be perforated with the width lesser than material thickness. 

Sheet Size: 

Sheets having thickness ranging from 0.3 mm to 12 mm can be perforated Sheets upto 3 metre width size can be perforated. 

Applications 

Perforated sheets find numerous applications ranging from Acoustical, Food processing, Paper making, Electrical, Architectural, Mining, Brewing & Decorative purposes. Certain specific applications include 'Rice polisher screens', 'Sugar liners' for sugar mills, 'Cable Trays' for Electrical Industry. 

Information Needed with Inquiry 

A - Type of Metal 
B - Gauge & Thickness of sheets 
C - Finished size of the sheets (i.e. Length & Width) 
D - Dimensions of Side Margins (if any) 
E - Size and Shape of perforations 
F - Pitch Size, measured from centre to centre 
G - Whether sheets are required in rolled or flat position