Ceiling of Perforated metal is widely used in projects of office building, great mall, railway
station, large clubs etc.It is famous for large variety of
attractive designs; good overall effect; simple and beautiful
lines; easy to install.
Different customer has different requirements.
We provide a brief guide to help you understand the nomenclature
used for the specification of different types of perforated sheet.
We can provide you the following material: stainless steel, carbon
We can manufacture a wide range of thick sheet verifying from 0.1mm
to 25mm. Length is the overall measurement of the long side of the
sheet. Width is the overall measurement of the -short side of the
sheet. The standard sheet size is 1000mm*2000mm. and 1000mm*2500mm.
The coil width 1000mm is also available. We also can process the
special product for your requirement if you tell us the exact
The hole shape
Round, square, long round, triangle, scale, diamond, oval,
hexangular, slot etc.
In general it is advisable to use a hole size larger than the
material thickness. The closer the hole size and material thickness
come to a 1 to 1 ratio, the more difficult and expensive the
process is. Dependent on the material type, smaller hole size to
material ratios can be achieved. The minimum diameter we can
fabricate is 0.003" (0.08mm). If you require a die that isn't
already in our die bank, our experienced tool and die makers can
quickly make exactly what you need at a reasonable cost.
We have tooling available for many different hole patterns and
shapes. It is more economical to choose one of the available
patterns, although special hole sizes and patterns can be
accommodated at additional cost.
Hole center is the distance from the center of one hole to the
center of the nearest hole in the next adjoining row.
Open area is the total area of the holes divided by the total area
of the sheet and is expressed as a percent, Keep in mind that
punching holes in a material add stresses that can result in
distortion of the product. The higher the open area, the more
material distortion takes place, especially when the perforated
pattern is bordered by margins on all four sides. But these
distortions can be removed by our special in house leveling
Margins are the blank area along the edges of the sheet. If you
want 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).Manufacturing considerations
may affect margins. If the margins requested are not possible .We
will replace it with the similar products as your consideration.
There are tolerances on thickness, pitch, openings, flatness, and
shearing for perforated products. You should specify a specific
tolerance, so we can give you a precise product. If not, we will
according to standard tolerance.