Quick answer: Three quotes for one drawing can sit 37% apart, because order quantity, mold ownership and test scope move more than wall thickness. This page splits a Missile Warhead Container quote into three blocks and four lead-time gates.
Table of contents
- Why a Quote Splits Into Three Blocks
- MOQ and Mold Ownership: The 50-Unit Gap
- Four Operations Between 45 Days and 28 Days
- Payment Terms, Audits and First Articles
- FAQ
1. Why a Quote Splits Into Three Blocks
Three quotes for one drawing can land 37% apart, which starts an argument about wall thickness. Split the figure into shell, hardware and testing, and the spread shows up in an hour.
On a Missile Warhead Container, an 8 mm shell runs 520 CNY per unit at 50 pieces and 430 CNY at 300. Tooling is its own line: 86,000 CNY for aluminum, 260,000 CNY for steel, or 287 and 867 CNY per unit at 300 pieces. Hardware adds 310 CNY for 4 stainless latches, 2 relief valves and 1 EVA insert. Testing adds 85 CNY for a 90-second leak check, a 1.2 m drop and 48 hours of salt spray.
Most traps sit in the third block. One plant writes salt spray as on-demand and bills 600 CNY per run later; another swaps EVA for pearl cotton, saving 40 CNY a set.
| Quote block | Included | Usual omission | How to check |
|---|---|---|---|
| Shell molding | Rotomolded body, inserts, trimming | Tooling as a separate line | Demand its own row |
| Hardware | Latches, relief valve, handles, insert | Insert material and density | Compare a cut sample |
| Testing | Leak, drop, salt spray, crate | Per-batch report, retest fee | Put in Annex A |
2. MOQ and Mold Ownership: The 50-Unit Gap
Fifty units is the smallest order most plants quote; 300 is where price bends. Per-unit cost on the same Missile Warhead Container differs by 12% to 18%, driven by changeover and first-article sign-off, not resin.
Ownership matters more than the unit price.
Amortizing tooling into the price leaves the buyer with no title, and switching plants then means a new mold, at least 35 days. Listing it separately with title looks clean, yet without a relocation clause the steel stays in the bay. Title plus a 7-day removal window lets a 1.2 t mold leave for about 2,600 CNY, costs 3% to 5% more, removes a 260,000 CNY re-tooling risk.
- Batch: 50 for pilot, 300 for series, both priced.
- Tooling: title, amortization, removal window.
- Revision: drawing number plus 1,800 CNY per change.
3. Four Operations Between 45 Days and 28 Days
A Missile Warhead Container promise of 45 days hides four queues: 6 hours per shell, 210 seconds on the five-axis mill, 40 minutes at assembly and 90 seconds at the leak station.
| Operation | Per unit | Load for 300 | Compress by |
|---|---|---|---|
| Rotomolding | 6 hours | 11 days, 2 machines | Third machine, 7 days |
| Milling | 210 seconds | 4 days, 1 machine | Two shifts, 2.5 days |
| Assembly | 40 minutes | 6 days, 8 people | 12 people, 4 days |
| Leak test | 90 seconds | 1.5 days | Twin station, 0.8 day |
Reaching 28 days means a machine and people. A third rotomold arm lifts daily output from 8 to 12 shells; 12 operators lift a shift from 12 to 18 sets. Both show as a 5% to 8% expedite fee, so price it in.
4. Payment Terms, Audits and First Articles
Do not open with a 60-day request. The usual split is 30% deposit, 60% before shipment and 10% after acceptance; each extra 30 days adds 2.5%.
An audit reads three numbers: press tonnage, CMM accuracy, chamber volume. A 1,600 t press forms a 1.2 m cavity body, a 0.02 mm CMM checks latch holes, and a 1 m³ chamber takes a full case through 48 hours of spray.
A Missile Warhead Container first article takes 7 days, a 1.2 m drop and 48 hours of spray. If it fails, allow 12 days for mold correction, outside the delivery clock.
Conclusion
The three hidden lines move fixed cost into paragraphs nobody reads. Order quantity sets the amortization base, mold ownership the exit cost, and test scope what gets billed at acceptance. A Missile Warhead Container quote then becomes comparable.
This article discusses only the container (case body) side of specifications and design intent, and does not cover any handling, loading or use of the contents.
Related Reading
- How the shell is molded and layered
- From cavity size to wall and ribs
- Acceptance rules for transport cases
- Matching box types to loads
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