One NetProto steel tool
- DFM documented before cut.
- Sampling and production on identical steel.
- Customer owns tool after tooling charge is paid.
Injection mold manufacturing
Injection Mold Manufacturing: From Steel to First Article
Manufacturing the mold is a sequence of documented decisions, not a black box between quote and first shots.
One sequence
Manufacturing one production steel tool
Injection mold manufacturing searches often mean what happens between PO and first samples. For NetProto that path ends on the same hardened steel tool that runs reorders.
Skipping DFM or sampling steps is how programs inherit hidden second tools. This page lists the milestones buyers should see documented, not every shop floor operation. See the steel injection mold this manufacturing path builds.
Milestones
Milestones buyers should see before production release
Each row is a gate, not a marketing claim.
| Milestone | What gets decided | Why it matters |
|---|---|---|
| DFM review | Draft, undercuts, gate, parting line | Fix geometry before steel is purchased |
| Steel scope agreed | Hardened steel for the program | No undisclosed grade menu on the site |
| Tool build | Cavity, cooling, ejection | Completed in 10 business days on qualified programs, depending on part size and complexity. |
| T1 sampling | Dimensions and cosmetics vs criteria | Approval tied to this cavity set |
| Production release | Same tool runs orders | Reorders skip a second tooling purchase |
Single path
One manufacturing path versus split builds
Split builds add handoffs; one path keeps the same cavity identity.
Split prototype and production builds
- First tool built for learning, then set aside.
- Second tool built for production with new sampling.
- Engineering changes discovered late cost more in steel.
Buyer visibility
Documents to request during manufacturing
If these are missing, visibility is missing.
Written DFM report with accepted and open items.
Sampling plan with dimensional and cosmetic criteria.
Tool ownership statement in the purchase terms.
Change order process for post release geometry edits.
After release
Production and reorders on the same tool
Manufacturing does not end at first article. The same tool should run repeat orders without rebilling the tooling charge.
- Lifetime support means the same tool keeps running while you order
- Maintenance and engineering changes quoted separately
- Project tracking for ongoing programs
Related process pages
Tooling and quality context
/injection-molding-tooling/injection-mold-maker
Choosing the manufacturing partner.
/injection-molding-tooling/injection-mold-maker
/injection-molding-tooling/injection-molding-lead-time
Calendar for tool build.
/injection-molding-tooling/injection-molding-lead-time
/manufacturing-standards
Commercial tolerance bands.
/manufacturing-standards
/injection-mold-design-guide
Design guide hub.
/injection-mold-design-guide
/injection-molding-tooling
Tooling category hub.
/injection-molding-tooling
/plastic-injection-molding
Production molding services.
/plastic-injection-moldingFAQ
Manufacturing questions
Do you publish mold steel grades?
No. Hardened steel is selected during DFM without a public grade menu.
How long does manufacturing take?
The tool is completed in 10 business days on qualified programs, depending on part size and complexity.
What does the written DFM report include?
The written report lists accepted items and open items before steel is cut. It does not publish a steel grade menu or dimensional tolerances.
Are sampling dimensions published on this page?
Sampling checks dimensions and cosmetics against the criteria agreed for that cavity set. Those measurements stay with the program. This page does not publish them.
Next step
Start manufacturing with DFM
Upload CAD to begin the documented path. NetProto manufacturing is ISO 9001 certified.