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Sheet Metal Punching Service




Our automated CNC sheet metal punching turrets can process the most intricate formed features, perforations and patterns with high speed precision.  Sheet metal punching is the most efficient way to produce precision fabricated metal products with many holes. For over 60 years, Classic Sheet Metal has been a top choice for sheet metal punching in Chicago and in the United States.


Our sheet metal punching machine can also form countersinks, embossments, extrusions, and louvers. Perfect for customized metal products with perforated hole patterns, electrical knock-outs, part number stamps, and countersunk holes.



Equipment2 - Single Station Strippit Presses
1 - Single Station Strippit Press with auto backgage
5 - CNC Turret Punch Presses to 30 metric tons
AutomationOperators trained & certified in the use of multiple machines.
Volume CapabilitiesPrototype Runs to Several Million Pieces Annually Depending on Product Complexity & Application
MaterialsAluminum (all grades)
Mild Steel
High Strength (HSLA) Steel
Cold Rolled Steel
Hot Rolled Steel
Stainless Steel
Austinitic (300 series) Stainless Steel
Specialty Stainless Steel
Galvanized Steel
Data ExchangeProEngineer
Master CAM
SolidWorks Part Files
SolidWorks Assembly Files
2D & 3D DXF Files
2D & 3D IGES Wireframe
other CAD/CAM Formats
Secondary OperationsTooling
Die Tapping
Value Added Process
Hardware Installation
Tapping & Deburring
Heat Treating
Returnable/Reusable Packaging


Sheet Metal Punching: Defined


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Sheet metal punching in metal fabrication is the process of using a machine to press a shape through a sheet of metal and into a die to create the desired shape in the metal.  This is most commonly done by use of a turret, a computer numerical controlled machine that houses tools and their corresponding dies in a revolving indexed turret.  These machines use hydraulic, pneumatic, or electrical power to press the shape with enough force to shear the metal. The shape is formed by pressing the material against a die with a huge force. The shear forces generated between the material and die separate the material into the desired shape. The desired shape is not obtained, however, as burred edges and rough surfaces are formed. These edges and surfaces must be further processed until the desired shape is achieved.