“How much for a mold?” is the wrong opening question. A useful injection mold cost breakdown China separates steel, complexity, cavitation, hot runner, texture, and tryout scope — so you compare quotes and negotiate scope, not just percentage off a lump sum that hides different assumptions.
OEM procurement teams receive three tooling quotes spread across a 2× range for the same STEP file. Without line-item breakdown, the lowest bid wins — and T1 reveals single-cavity P20 priced against a competitor’s 2+2 hot runner H13 quote that was never apples-to-apples.
This guide explains cost drivers, indicative bands (not binding quotes), hidden post-PO costs, how to line-match competing bids, and payment structures that protect both parties.
Typical cost drivers
| Component | What moves price |
|---|---|
| Steel type | P20 vs H13 vs stainless for corrosive or clear resins |
| Cavity count | 1+1 vs 2+2 vs 4+4 layout and plate size |
| Hot runner manifold | Drop count, valve gate vs thermal, brand and service |
| Side actions | Slides, lifters, hydraulic cylinders, sequencing |
| Surface finish | VDI texture depth, optical polish zones, EDM time |
| Tryout iterations | Included T1 loops vs hourly change-order rate |
| Standards / export | HASCO, DME, metric plates, shipping and crating |
| Engineering depth | DFM included vs charged separately |
| Mold base size | Part envelope + actions drive plate cost |
| Inspection / metrology | CMM reports, sample quantities at T0/T1 |
Line items a credible quote should show
- Mold base and cavity/core steel with grade
- Machining, EDM, and bench hours or bundled stage cost
- Hot runner system priced separately if included
- Texture or polish spec reference (VDI number, SPI level)
- Tryout material and machine time — included shots vs billable
- Packaging, freight, insurance — FOB vs DDP clarity
- Spare parts kit — pins, bushings, tips
If any major block is missing, ask before award — not at invoice.
Indicative bands (not quotes)
Simple single-cavity prototype aluminum: often low thousands USD. Single-cavity production P20 for palm-size industrial part: mid thousands to low five figures depending on size and actions. Multi-cavity hot runner H13: five figures and up. Large enclosure, automotive-style actions, or optical polish: significantly higher.
Geography affects labor and overhead but steel and hot runner components are global commodities — a quote far below market often omits scope, not magic efficiency. Always demand itemized breakdown; two quotes 2× apart usually differ in steel, cavitation, or included engineering.
Hidden costs after mold PO
- Engineering changes post-DFM sign-off — charge per loop or hourly
- Texture rework after first polish sample rejection
- Text or logo insert modifications late in build
- Expedited freight when tryout slips past launch buffer
- Receiving-side tryout if mold ships before correlation at production molder
- Hot runner controller purchase if receiving press lacks compatible system
- Import duty and brokerage not in FOB quote
- Mold repair at receiving due to transit damage — define insurance
Model full program with TCO guide and quote request guide.
How to compare two China mold quotes
- Line-match steel grade, hardness, and supplier cert requirement
- Match cavitation, runner type, and gate count
- Compare included T0/T1 scope and sample quantities
- Confirm mold ownership and maintenance in both bids
- Reject quotes with no DFM comment on your actual geometry
- Compare lead time assumptions — aggressive dates may omit texture iterations
- Verify hot runner brand and spare tip policy if applicable
Score DFM depth and milestone transparency — not price alone. A higher quote with written steel spec and tryout scope may be lower TCO than a cheap lump sum.
Payment milestones that reduce risk
| Milestone | Typical % | Deliverable |
|---|---|---|
| PO / design release | 30–40% | Signed mold design, steel order |
| Rough complete / mid-build | 20–30% | Photos, steel certs |
| T0 samples approved | 20–30% | Parts, tryout report |
| T1 / pre-shipment | Balance | Final samples, spares, marking |
Avoid 100% upfront except on repeat relationships with proven delivery. Tie payment to deliverables defined in tooling agreement.
Negotiation levers (scope, not only price)
- Reduce cavitation at launch — staged plates later
- Defer texture to T1 if cosmetic class allows
- Specify cold runner now with designed hot half upgrade path
- Include defined T1 loops instead of open-ended hourly
- Bundle mold build + production for accountability
Cutting steel grade or skipping cert to hit target price is how programs pay twice.
How Deuchi quotes tooling
Itemized mold quotes with steel, cavitation, runner, texture, and tryout scope — tied to mold build milestones. Procurement can audit scope against competitors without reverse-engineering a single total.
Quotes connect to mold design assumptions and production piece price at stated volumes — one engineering thread, not disconnected bids.
RFQ attachment list for itemized mold quotes
- STEP + PDF with CTQs and cosmetic map
- Material grade and annual volume bands
- Requested cavitation range (not only “best price”)
- Runner preference if known, or ask supplier to recommend with TCO note
- Target SOP and acceptable lead time range
- Mold ownership and custody requirements
- Required certs (steel, tryout report format)
Suppliers cannot itemize what you do not define — vague RFQs get vague quotes.
Finance and capitalization
Tooling may be capitalized on balance sheet — coordinate accounting classification with payment milestones. Amortization schedules should match expected production years, not arbitrary five-year default if program life is shorter.
Consigned tooling rolled into piece price affects exit cost — model buyout triggers in ownership terms before signing multi-year supply agreements.
Sample itemized quote structure (illustrative)
| Line | Example note |
|---|---|
| Mold base #3 steel | Included per layout drawing rev A |
| Cavity/core P20 | Pre-hard 28–32 HRC, cert required |
| 4-drop hot runner | Valve gate, brand specified |
| EDM texture VDI 24 | Includes one texture plaque approval |
| T0/T1 tryout | Two loops included, then $X/hr engineering |
| Spare pin kit | 10 pins, 2 sprue bushings listed |
| Export crate FOB Shenzhen | Insurance optional line item |
Use this structure to score incomplete competitor quotes — missing rows are missing scope.
When to walk away from a tooling quote
- Refusal to itemize after second request
- Steel spec changes verbally after award
- No DFM comment on known problem features in your CAD
- 100% upfront with no milestone protection
- Lead time impossible without skipping heat treat or texture approval
Currency, tax, and total landed tooling cost
China mold quotes may be USD FOB — add freight, duty, brokerage, and receiving tryout at domestic or regional molder. A mold quoted $28,000 FOB can land materially higher — compare landed tooling in TCO, not FOB alone when deciding between regional suppliers.
VAT and refund rules change by jurisdiction and contract structure — finance should review tooling invoice entity and payment path before first wire, not after customs hold.
Benchmarking quotes from multiple regions
China, domestic, and nearshore mold quotes differ in labor, overhead, and steel sourcing — but itemized scope should still line-match. A domestic quote at 2× China FOB may include domestic tryout, warranty, and faster engineering response — value those lines, not only geography.
Benchmark three quotes with identical RFQ attachments and score DFM depth, milestone payment willingness, and steel cert policy. Lowest FOB without scope match is not a benchmark — it is a trap.
FAQ
Why do China mold quotes vary 2× for the same STEP?
Different steel, cavitation, hot runner, texture level, and included engineering — itemize before award.
Is mold cost amortized in piece price?
Sometimes in consigned models — clarify whether tooling is separate deposit or rolled into unit cost with buyout terms.
Should we pay 100% upfront?
Milestone payments tied to DFM sign-off, rough complete, T0, and T1 release reduce leverage risk — see mold ownership guide.
Does cheaper mold mean cheaper parts?
Not if cycle, scrap, or maintenance is worse — model piece price at volume with realistic cycle and yield assumptions.
Next step: Request itemized mold quote with CAD, volume bands, and CTQ list.