{"id":53803,"date":"2026-04-17T00:41:21","date_gmt":"2026-04-16T16:41:21","guid":{"rendered":"https:\/\/zetarmold.com\/?p=53803"},"modified":"2026-05-01T22:13:46","modified_gmt":"2026-05-01T14:13:46","slug":"delai-de-fabrication-par-moulage-par-injection-ventile","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/fr\/delai-de-fabrication-par-moulage-par-injection-ventile\/","title":{"rendered":"Injection Molding Lead Time Breakdown: Tooling, Sampling & Production Timeline"},"content":{"rendered":"
You submitted a CAD file for quotation on Monday. By Wednesday you have the quote, but the lead time reads \u201c25\u201330 working days for tooling, 15\u201320 working days for first production run.\u201d Your product launch is in eight weeks. Is that timeline realistic? Where does each week go? And which parts can you compress if you negotiate the right terms?<\/p>\n
This article breaks down every phase of the injection molding lead time \u2014 from DFM review through mold manufacturing, sampling, and production \u2014 with specific time ranges for each step. I will also explain which phases are fixed (physics and machining time) and which are negotiable (scheduling priority, overtime, parallel processing). The goal is to give you enough detail to plan your project timeline with confidence, and to push back when a supplier quotes lead times that are longer than necessary.<\/p>\n
\nPrincipaux enseignements<\/strong><\/p>\n
\n
Total injection molding lead time ranges from 4 to 12 weeks<\/li>\n
Mold manufacturing consumes 60\u201370% of the total lead time<\/li>\n
Aluminum tooling cuts mold build time by 40\u201350%<\/li>\n
Sampling and approval typically adds 5\u201310 working days<\/li>\n
Parallel processing can save 2\u20133 weeks on urgent projects<\/li>\n<\/ul>\n<\/div>\n
What Is the Typical Lead Time for Injection Molding?<\/h2>\n
The typical lead time for injection molding is defined by the function, constraints, and tradeoffs explained in this section. A standard injection molding project \u2014 from approved CAD to first production shipment \u2014 takes 6\u201310 weeks for a single-cavity steel mold, and 4\u20137 weeks for a single-cavity aluminum mold. Multi-cavity molds, overmolding tools, and molds with complex side actions add 2\u20134 weeks to the tooling phase. Production lead time after mold approval runs 2\u20134 weeks depending on order quantity, material availability, and machine scheduling.<\/p>\n
These ranges assume the buyer responds to DFM review comments and sample approval requests within 24\u201348 hours. Every day of delayed feedback adds a day to the schedule. In our experience, the single biggest cause of missed deadlines is not mold manufacturing delays \u2014 it is the back-and-forth between buyer and supplier during DFM review and sample approval.<\/p>\n
What Are the Phases of Injection Mold Manufacturing?<\/h2>\n
The phases of injection mold manufacturing are the main categories or options explained in this section. Mold manufacturing breaks into seven distinct phases, each with a predictable time range. Understanding these phases helps you identify where your supplier can compress the schedule and where they cannot.<\/p>\n
\u00ab\u00abLe d\u00e9lai de production est le m\u00eame quelle que soit la quantit\u00e9 command\u00e9e.\u00bb\u00bb<\/td>\n
3\u20137 days<\/td>\n
Yes (fast buyer feedback)<\/td>\n<\/tr>\n
\n
Approvisionnement en mat\u00e9riel<\/td>\n
3\u201310 days<\/td>\n
Partially (standard steel in stock)<\/td>\n<\/tr>\n
\n
CNC Roughing & Finishing<\/td>\n
7\u201315 days<\/td>\n
Limited (machining time)<\/td>\n<\/tr>\n
\n
EDM & Wire Cutting<\/td>\n
3\u20137 days<\/td>\n
Limited<\/td>\n<\/tr>\n
\n
Polishing & Assembly<\/td>\n
3\u20135 days<\/td>\n
Partially<\/td>\n<\/tr>\n
\n
Mold Trial (T1 Sampling)<\/td>\n
1\u20133 days<\/td>\n
No (requires machine time)<\/td>\n<\/tr>\n
\n
Dimensional Inspection<\/td>\n
1\u20132 days<\/td>\n
Non<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
The longest single phase is CNC machining, which cannot be compressed much beyond running overtime shifts. The DFM review phase is where most time is wasted \u2014 not because the supplier is slow, but because the buyer takes days to respond to design change requests. A DFM review that should take 3 days can easily stretch to 10 days if the buyer\u2019s engineering team reviews changes in weekly meetings instead of in real time.<\/p>\n
How Long Does Each Mold Type Take to Build?<\/h2>\n
Cette section explique combien de temps prend la construction de chaque type de moule et son impact sur le co\u00fbt, la qualit\u00e9, les d\u00e9lais ou le risque d'approvisionnement. Le type et la complexit\u00e9 du moule d\u00e9terminent directement le d\u00e9lai de construction. Un moule en aluminium simple cavit\u00e9, \u00e0 ouverture et fermeture simples, peut \u00eatre \u00e9chantillonn\u00e9 en 7 \u00e0 10 jours ouvrables. Un moule en acier simple cavit\u00e9 avec la m\u00eame g\u00e9om\u00e9trie prend 15 \u00e0 20 jours. Ajoutez des glissi\u00e8res lat\u00e9rales et vous ajoutez 5 \u00e0 10 jours. Ajoutez une deuxi\u00e8me cavit\u00e9 (moule familial ou multi-cavit\u00e9) et vous ajoutez encore 5 \u00e0 7 jours par cavit\u00e9 suppl\u00e9mentaire.<\/p>\n\nCNC machining phase of mold manufacturing<\/figcaption><\/figure>\n
Overmolding tools take 30\u201345 days because they require two cavity sets (or a rotary mechanism) and must be tested in two stages \u2014 first the substrate shot, then the overmold shot. At our Shanghai facility, we build 100+ molds per month and dedicate specific production lines to overmolding tools to maintain throughput despite the added complexity.<\/p>\n
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