comes in a selection of hole shapes, sizes,
gauges and material types,
used in a variety of applications like screens,
guards, panels, partitions and enclosures
To place an Order or get a Quote:
Perforated Metal can take many shapes with numerous choices
of perforations. The perforating process is perfectly adaptable
to provide surprisingly satisfying design solutions, enhancing
the look as well as the performance. Perforated components make
products work better with holes that function several ways.
Perforated metal parts work more efficiently because the
perforating process is so adaptable to the designer's
requirements for perforations and their placement, material
specifications and the shape of the finished part.
versatile and functional depending on its
shape opening and gauge and sixe
- Can be
strong depending on gauge
- Can vent,
screen and filter a variety of solids
lightweight but durable
openings can be chosen for optical
requirements appealing to to variour
Perforated Metal also helps to diffuse
light and air. If manufacturing a product that
needs to be lighter, for the right product
application, use perforated metal --- metal
sheet retains a high percentage of it's strength
after it's perforated but loses a lot of costly
for Perforated Metal:
Staggered (60 degree pattern) is
standard. Variations include 45 degree
staggered, and straight line pattern.
Staggered or straight line pattern.
Side staggered, end staggered, or
straight lines. Slotted perforations
will be round end slots; specify if
square end slots are required.
Available upon request.
Spacing of Perforations
- Spacing for
large perforations will be designated be
either Centers of
perforations, or by the Open Area
required. Spacing for small perforations
will be designated by either Centers,
or Open Area, or if more
practical, by the Number of
Perforations to the Square Inch.
Pattern of Perforations
Staggered Perforations, both
Round & Square: Direction of
the stagger will normally be the short
dimension of the sheet. Straight row of
hole is normally parallel to long
dimension of sheet.
The long dimension of the slots can be
furnished with either the width or
length of the sheet in most cases.
Perforated Stock Size Sheets &
Plates: The long sides of the
sheet will be supplied with minimum
margins. The short sides of the sheet
will have either minimum margins or no
Sheets & Plates Re-sheared after
Perforating: Special margins
are available to specifications but they
must carry a tolerance within the limits
of the perforating tool.
Unfinished end pattern is
standard in the industry.
Flatness of Sheets & Plates
- In the
majority of requirements, perforated sheets
or plates can be furnished to AISI flatness
tolerances. Before ordering any of the
following special requirements, discuss then
with our sales department:
Perforated sheets with extra wide
areas required within the perforated
Perforated sheets with very large
percentage of open area.
gage metal in relation to the size of
Stretcher leveled sheets.
Guidelines for Minimum Hole Size/Minimum Bar
- The rule of
thumb for perforating is that the hole
diameter should not be less than the
thickness of the material. The closer to a
1-to-1 ratio, the higher the probability of
tool failure and the greater the precautions
necessary to avoid it. Modifications can be
made in certain instances at additional
costs. For stainless steels and similar
higher strength materials, it is preferable
to specify at least three thickness gauges
thinner than hole diameter.
- The same
general rule applies to bar width. The bar
width should be greater than material
thickness because of the increased number of
punches and therefore, increased perforation
tonnage. The bar width can be adjusted at