Cavity Count Optimizer — Bridge/Prototype Tooling
Cavitation economics for a bridge/prototype tooling: tool capital vs machine-hour cost at your demand.
Bridge tooling buys time-to-market: aluminum cavities at a tenth the cost and a quarter the life. The math is per-month carrying cost of WAITING for production steel, not per-part price.
Formula
Note: Starting-point process values — the resin grade's datasheet and an in-mold study govern. Verify with a gate-seal study and a cooling-time ladder on the actual tool.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Cavitation economics for a bridge/prototype tooling: tool capital vs machine-hour cost at your demand. A free injection molding cycle & process tool — no sign-up, no upload, instant results in your browser.
About Cavity Count Optimizer — Bridge/Prototype Tooling
Cavity Count Optimizer — Bridge/Prototype Tooling computes the governing relationship cost/k = (machine hrs×rate + tool/amort)/demand × 1000, per option live as you type. Bridge tooling buys time-to-market: aluminum cavities at a tenth the cost and a quarter the life. The math is per-month carrying cost of WAITING for production steel, not per-part price. Defaults are pre-filled with realistic values for this exact scenario, and the worked example substitutes your numbers step by step so the math is never a black box.
How to use Cavity Count Optimizer — Bridge/Prototype Tooling
- 1Enter your values — Annual demand, Cycle time, Option A cavities, Option A tool cost and more (sensible defaults are pre-filled).
- 2Read the live results: Option A cost/1,000, Option B cost/1,000.
- 3Check the "with your numbers" line to see cost/k = (machine hrs×rate + tool/amort)/demand × 1000, per option substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Cavity Count Optimizer — Bridge/Prototype Tooling?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula cost/k = (machine hrs×rate + tool/amort)/demand × 1000, per option with authoritative sources cited on the page (Rosato, Injection Molding Handbook, 3rd ed.)
- ✓Bridge tooling buys time-to-market: aluminum cavities at a tenth the cost and a quarter the life.
- ✓Niche-specific defaults give a meaningful worked answer the moment the page loads
Frequently asked questions
What formula does the cavity count optimizer — bridge/prototype tooling use?+
It evaluates cost/k = (machine hrs×rate + tool/amort)/demand × 1000, per option, exactly as published. Sources: Rosato, Injection Molding Handbook, 3rd ed.. The substituted worked example on the page lets you verify every step against the textbook.
How should I read the result — and how far can I trust it?+
Bridge tooling buys time-to-market: aluminum cavities at a tenth the cost and a quarter the life. Starting-point process values — the resin grade's datasheet and an in-mold study govern. Verify with a gate-seal study and a cooling-time ladder on the actual tool.
When is this calculator the right tool for the job?+
Cavitation economics for a bridge/prototype tooling: tool capital vs machine-hour cost at your demand. A free injection molding cycle & process tool. The math is per-month carrying cost of WAITING for production steel, not per-part price. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Do I need to install anything or create an account?+
No. The tool is pure client-side JavaScript: open the page and it works, offline once loaded, with no account, no quota and no data leaving your device.
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