Copper blanks are used for minting coins and medals by stamping or engraving a custom design onto the blank. We supply other mints and manufacturers with these blanks and planchets so they can strike their own coins and medallions. Our customers comment on the quality of our blanks and how easy they are to stamp. In fact, a customer recently contacted us to trade our copper blanks for some that he purchased from one of our competitors. Our competitor’s copper blanks were too hard, and therefore could not be easily struck to impress their design.
Our copper blanks are made from pure .999 fine copper, known as Cu110. Other alloys are available and we recommend you call us to check availability and minimum quantities.
Available in 25mm, 30mm, 34mm, 39mm*, and 47mm sizes.
*39mm available in three different thicknesses (.102″, .108″, and .125″ thick).
Pricing for under 20 pieces will be $1.00 per piece for tumbled finish, $1.50 per piece for burnished finish on all sizes but the 47mm. 47mm will be $0.50 more.
Tumbled Copper Blanks
This process consists of tumbling the copper blanks in a mild deburring media which cleans off any mill marks and makes a clean surface. The blanks will carry a frosted finish for a lower grade stamp. We use these copper blanks for most of our bullion-grade products.