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Press Punching | Bindery
Punching | Punching Specifications
Unit sets can be file hole punched by two different
procedures. They can be punched on the press as the forms are being printed
or they can be punched in bindery after the forms have been printed and collated
together.
Press Punching
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File holes are punched on a web press as the forms
are being printed.
- File punching can be added on any number of parts. If you have
press punching on a carbon
interleaved form, the punching will not go through the carbon.
- The punching can change locations from part to part.
- Standard configurations are:
- two holes, 2 3/4" center to center,
top or bottom of the form.
- three holes, 4 1/4" center to center
on the left side of the form
- Configurations other than standard may have restrictions so consult
your supplier.
- Press punching is less expensive on larger runs due to the efficiency
of punching on the press as the form is being printed.
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Bindery Punching
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File holes are punched as a secondary operation
in the bindery department.
- File punching must go through all of the parts. If the form
is carbon interleaved, the punching will go through the carbon.
- The punching cannot change locations from part to part.
- The standard configurations are the same as for the press punching.
- There are no restrictions on non-standard punching configurations.
- Bindery punching is more expensive on longer runs due to the labor
involved in being an offline operation.
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Punching Specifications
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Specifications needed by your
supplier:
Number of holes - Diameter size of
hole - Center to center measurement from hole to hole - Position of
punch - Parts to be punched
Example: 3 holes - 1/4" Dia.
- 4 1/4" center to center - at left - on parts 2 & 3 only.
Also indicate if the holes are parallel
or perpendicular to the stub width.
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Note: If file punching is needed only
on specific parts and cannot be punched through all parts in that
same location, then the form must be press punched.
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Unit Sets can contain a combination of
press punching and bindery punching.
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