ACC Coating

Steel marking stamps are often considered secondary operation tools. So it’s not uncommon to find stamps operating for up to three months without being replaced. Combine this situation with the increased use of more environmentally friendly water-soluble lubricants and release agents, and you’ll find compacted dirt in the character grooves and rust becomes a major tool life problem. As the production press dirt adheres to the rough corroded surface it can cause character “blow out” in enclosed characters such as the number 8 or 0 and many others. It often creates chipping and then in subsequent hits from the press deforms the stamp making it difficult to know the origin of the failure. Ultimately scrapping good parts because of identification issues.

Columbia Marking Tools has improved stamp life with their ACC™ “Auto Clean” chemically applied coating that provides the lubricity of Teflon®, eliminating the effects of rust on the stamp characters and stamp retainers, while preventing dirt from compacting into the individual stamp characters.

CMT tests have shown that the ACC™ coating is the best rust inhibitor coating for steel stamps in industrial factory tooling applications, compared with black oxide or chrome coatings, and it enhances the stamp’s’ shelf life. As a result, we have standardized the coating for all our standard and special stamps and retainers. And we’ve been able to add the ACC™ wear & life benefits without additional cost to the customer.

Pre-Packaged Sets

Because stamps are very small tool inserts, they are hard to store and are often lost. To make it easier for the user to identify the stamps and retainers and to store them properly and protect them from being lost or mixed up with old stamps, Columbia Marking Tools has organized standard skin packaged sets of press marking stamps and retainers. Far less space, and you can see what they are without opening the package.

In short :

• Longer shelf life

• Corrosion preventive

• No Stick – reduce dirt build up

• Reduce character blow-out.

• Longer tool life.

• Cost savings