Why this matters
Send file status, resin target, mold life expectation, cavity assumption and T1 approval criteria so the first quote reflects a real tooling scope instead of a placeholder estimate. Injection mold quotes vary widely between suppliers mostly because buyers describe the same part with different assumptions. The fastest route to a comparable price is sending the same file, resin target, cavity expectation and sample criteria to every supplier.
Buyer checks
Quote variables
| Quote variable | Why it changes the mold route |
|---|---|
| File format | A native CAD file lets every supplier measure the same geometry; a photo or sketch produces quotes based on different guesses. |
| Resin and additive | Material grade changes shrinkage, cooling time, steel hardness needs and expected mold life. |
| Volume expectation | Annual volume or order size is what actually sets cavity count and mold-life target, not the part size alone. |
| Mold purpose | Prototype, bridge, production and export molds carry different steel, spare-parts and documentation expectations that change price. |
Common mistakes
How to apply it
Send the same CAD file, resin target, volume expectation and T1 approval criteria to every supplier being compared, then treat the quote as directly comparable only if all four match. If the project is early, the guide can show whether the next move is CAD cleanup, DFM review, prototype tooling, production mold planning, export mold handoff or repair review.