Inside the manufacturing process
How custom challenge coins are made.
A coin moves through artwork review, relief planning, tooling, sampling, metal production, finishing, inspection and packing. Buyer approvals connect these stages.
The most important control points happen before mass production: confirm the specification, approve the production artwork, review the sample and define the packing standard. Manufacturing then follows those agreed references.
Start with the use case, not only the logo
A pocket coin, presentation coin, retail collectible and commemorative giveaway can share similar artwork but require different decisions about size, weight, edge, finish and packaging. A useful inquiry identifies the audience and distribution method before technical artwork begins.
- Organization, event or program the coin represents
- Target quantity and possible reorder plan
- Preferred diameter, thickness and weight direction
- Front, back and edge content
- Relief, finish and color direction
- Capsule, pouch, box or other presentation requirement
- Destination country and required delivery date
Eight stages from artwork to shipment
1. Requirement and artwork review
The factory checks the intended size, material direction, front and back artwork, text, edge requirement, finish, color and packaging. Small text and fine divisions are reviewed at physical scale, not only on screen.
2. Production artwork and relief planning
Artwork is translated into raised, recessed, polished, textured and colored areas. A 2D construction uses defined levels; a 3D construction uses more sculpted transitions. Record the relief relationships, color boundaries, metal dividers and areas left uncolored together, as well as any edge text, numbering and orientation.
Multicolor enamel needs defined boundaries and suitable fill space. For gradients, fine printed detail or color spanning pronounced height changes, assess revised color areas, printing or selected metal-only surfaces before manufacturing.
3. Tooling preparation
After production artwork approval, the required tooling is prepared for the custom design. Tooling is a project-specific setup, so artwork changes after this stage may require additional work or replacement tooling.
4. Sample production
A sample allows the buyer to review physical size, relief, surface, color, edge details and presentation. At Extra Dream, a typical sample takes 7–10 days after artwork and specifications are confirmed.
5. Sample approval
The buyer records approval or provides a consolidated revision list. Review the physical size, relief, lettering, color boundaries, metal surfaces, specified edge details and packaging together. Where artwork was revised for manufacturing, list the changes and compare each one with the sample. The approved artwork and physical sample—or another clearly agreed sample standard—then provide the reference for mass production.
6. Metal production and finishing
Coins move through the applicable forming, trimming, polishing, plating, color and protective steps. The exact route depends on material, relief, finish and whether enamel or printing is specified.
Die striking: form the design in solid metal
A prepared metal blank is pressed between engraved dies to create the front and reverse relief. Brass is one possible material for this route. It is worth discussing for traditional coin shapes and defined relief; more sculpted designs depend on the material, tooling and press operations. Blanking creates the outline, while striking forms the design.
Die casting: form the shape from molten alloy
Molten alloy is injected into a reusable metal die, allowed to solidify and then removed. Zinc alloy casting can be considered for complex outlines and sculpted forms. Gate removal, trimming and surface preparation follow before the specified finish. Casting is an alternative forming route, not an extra step required after striking. Both striking and casting can produce relief. Select the route around the material, outline, height differences, detail and coloring requirements, rather than treating a “2D” or “3D” label as a quality ranking. Casting still requires appropriate release geometry, thickness and transitions; see Dynacast’s design guidance.
Finishing follows the approved construction
After forming, the specified route may include polishing, plating, enamel or printed color, and an optional protective layer. Both struck and cast pieces can use relief and color; neither process is automatically the better-quality choice. Confirm the material, design and finished sample together. Our metal finish guide shows the visual options.
Watch the existing blanking, brass stamping, finishing and packing clips →
These clips show individual operations, not one coin passing through every stage. The route for your order depends on its approved specification.
General process references: U.S. Mint: coin production and Dynacast: die casting. These explain manufacturing principles, not Extra Dream production specifications.
7. In-process and final inspection
Checks compare production against the approved reference. Dimensions, orientation, surface appearance, color, edge details, accessories and quantity are reviewed at relevant stages rather than relying only on a final glance.
8. Packing and shipment preparation
Coins are placed into the agreed individual packing or presentation packaging, counted and prepared for shipment. Carton labels and other buyer-provided packing requirements should be confirmed before this stage.
Agree the forming route and color layout together
A German construction machinery manufacturer wanted challenge coins for its overseas partner distributors. The initial artwork specified die striking, with several levels of deep relief on both sides and multiple enamel colors across the raised and recessed areas.
The design needed two things to work together: clear metal relief and clean boundaries between colors. During artwork review, we identified that the proposed route, relief heights and color areas needed further coordination. Proceeding directly to tooling would leave those decisions unresolved until sampling.
We compared die-struck and die-cast process samples with the customer and recommended zinc alloy die casting for this project. We also revised the artwork:
- Rework the relief levels. Define the height relationships around the main subject.
- Separate the color areas. Treat the intersecting raised and recessed surfaces separately, leaving metal dividers between colors.
- Let some areas remain metal. Keep selected areas with greater height differences as plated metal rather than requiring enamel everywhere.
The customer accepted the casting route and artwork revisions after comparing the process samples. The pre-production sample had clear relief levels and clean color boundaries, without the bleeding or overflow anticipated during review. The bulk order was subsequently delivered, with a positive response from the overseas distributors.
A change of forming process should be considered alongside color boundaries, metal dividers and areas left uncolored, so the structure and finish support the intended result.
What to look for on a sample
Look separately at the clarity of the relief, the separation of neighboring colors and whether the uncolored metal helps define the main subject. Recording those choices in the production artwork gives the physical sample a useful reference.
These sample references show different approaches to relief, color areas, metal surfaces and protective presentation.
The three approvals that protect the project
| Approval | What the buyer checks | Why it matters |
|---|---|---|
| Specification approval | Dimensions, material, finish, color, edge and packaging | Defines what the quotation and schedule cover |
| Production artwork approval | Front/back layout, text, relief levels and orientation | Allows tooling to begin from a controlled document |
| Sample approval | Physical appearance, function and presentation | Creates the practical reference for mass production |
Three manufacturing decisions to record
| Approval point | What to add | Purpose |
|---|---|---|
| Forming route | Process, material direction, intended relief and coloring | Connect the method to the intended result |
| Production artwork | Relief relationships, color boundaries, metal dividers and uncolored areas | Define the structural and surface roles before tooling |
| Pre-production sample | Clear relief, clean color areas and the agreed artwork changes | Retain an approved reference for production |
Keep the existing checks for dimensions, orientation, wording, plating, edges, quantity and packaging as appropriate to the specification.
When several stakeholders are involved, collect their comments into one revision list. Conflicting feedback from different email threads is a common source of delay and avoidable artwork versions.
Where finish decisions enter the process
Finish is not a cosmetic choice added at the end. It affects how relief reads, how color is separated and how the edge appears. Bright plating emphasizes clean polished areas, while antique treatments can increase contrast between raised and recessed detail. Dual-tone work requires especially clear artwork instructions.
Relief
Raised and recessed metal creates the tactile design structure.
Color
Enamel or printing introduces brand and collectible detail.
Antique contrast
Darkened recessed areas can make relief easier to read.
What quality control should compare
Quality control is most useful when it refers to agreed requirements instead of an undefined idea of “good quality.” The inspection plan should match the product.
- Diameter, thickness and overall shape
- Front and back orientation
- Relief clarity, text and spelling
- Plating coverage and intended surface effect
- Color placement and appearance against the approved reference
- Edge text, numbering or pattern where specified
- Capsule, pouch, box or other accessories
- Individual packing, quantity and carton identification
How to build a realistic schedule
Work backward from the date the coins must arrive—not the date the event begins. Allow time for artwork review, stakeholder approval, tooling, sampling, sample delivery if required, mass production, final inspection and transport.
A typical Extra Dream sample takes 7–10 days after artwork and specifications are confirmed. Mass-production and shipping timing are quoted for the specific order because quantity, finish, packaging and destination vary.
If the date is fixed, share it with the first inquiry. A factory cannot protect a deadline it does not know.
Process FAQ
Questions buyers ask before production.
How long does a custom challenge coin sample take?
A typical sample takes 7–10 days after artwork and specifications are confirmed.
When should the buyer approve the coin design?
Approve the production artwork before tooling and approve the physical sample or agreed sample standard before mass production.
Can artwork be changed after tooling starts?
Some changes may require tooling modification or replacement. Submit consolidated artwork feedback before tooling approval whenever possible.
What is checked before challenge coins are packed?
Checks can include dimensions, orientation, relief, finish, color, edge details, quantity, accessories and packaging against the approved standard.
Do 3D challenge coins always need die casting?
No. Different forming routes can produce relief. Suitability depends on the material, design structure, required levels and production arrangements. Define the effect to retain, then evaluate the route through production artwork and samples.
Does every area of a multilevel design need enamel?
No. Leaving selected areas as plated metal can help define the subject and relief. Confirm the essential brand colors first, then decide which areas need color and which should remain metal. This was part of the approach adopted in the German distributor-gift project.
Continue planning
Compare coin options and factory capability.
Custom challenge coins
Review relief, finish, edge, color and presentation options.
View custom coin options →
Planning a medal instead?
Use the medal design guide to prepare artwork and specifications.
Read the medal design guide →