Punch End Configurations

The Cleveland Punch and Die Company offers our customers a variety of different punch end configurations. Each configuration is designed for a specific purpose and application to achieve the best quality hole possible. The punch ends offered by Cleveland Punch and Die include:

• Crown Edge with Center
• This is the standard punch end configuration on all of CPD's stock punches. It is used for general purpose punching and is great for locating the punch to a predetermined spot on the material (commonly marked with a center punch). 

• Flat Face
• A flat face punch is frequently used to prevent the deformation of the piece of material that is being punched. Commonly referred to as a "blanking operation" many customers will generate a flat slug of material as a finished part.

• Full Crown
• A full crown punch end should be used when punching extremely hard material such as boiler plate. This punch end will help to keep the end of the punch intact and will strengthen the overall integrity of the punch while punching hard material.

• Chisel Point
• The most common use for a chisel point punch end is to reduce the tonnage of the punching application. This is useful when punching a large diameter hole on an ironworker. Ordering a punch with a chisel point can reduce the tonnage of the application by up to 20% depending on material type and thickness. Give us a call for engineering assistance to discuss your specific application.

• Concave Shear/Crisscross Shear
• A concave or crisscross shear is common on the 28XX and 36TC tooling lines. This punch end helps to reduce the deformation on thin material by shearing the material from the outside of the punch toward the center.
 

Cleveland Punch and Die can manufacture any special punch end per our customer's request. Give us a call to discuss your punching application and let our 130 years of experience guide you in the right direction.