Resin Drying — TPU (Shore 85A)
Dryer settings and hopper sizing for TPU (Shore 85A): 80 °C, ~3 h at -29 °C dewpoint.
TPU's rubberiness makes ejection the cycle's long pole — parts grab cores and drag; generous draft, air-poppets and patience beat brute ejector force. An undersized hopper 'dries' resin for however long the throughput allows, not what the datasheet demands — the hopper IS the residence timer.
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.
Dryer settings and hopper sizing for TPU (Shore 85A): 80 °C, ~3 h at -29 °C dewpoint. A free injection molding cycle & process tool — no sign-up, no upload, instant results in your browser.
About Resin Drying — TPU (Shore 85A)
Resin Drying — TPU (Shore 85A) computes the governing relationship hopper = throughput × residence ÷ bulk density × (1+margin) live as you type. TPU's rubberiness makes ejection the cycle's long pole — parts grab cores and drag; generous draft, air-poppets and patience beat brute ejector force. An undersized hopper 'dries' resin for however long the throughput allows, not what the datasheet demands — the hopper IS the residence timer. 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 Resin Drying — TPU (Shore 85A)
- 1Enter your values — Resin throughput, Residence required, Pellet bulk density, Hopper margin (sensible defaults are pre-filled).
- 2Read the live results: Resin in process, Hopper size needed.
- 3Check the "with your numbers" line to see hopper = throughput × residence ÷ bulk density × (1+margin) substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Resin Drying — TPU (Shore 85A)?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula hopper = throughput × residence ÷ bulk density × (1+margin) with authoritative sources cited on the page (Resin supplier processing data sheets (per-grade values govern); Rosato, Injection Molding Handbook, 3rd ed.)
- ✓TPU's rubberiness makes ejection the cycle's long pole — parts grab cores and drag; generous draft, air-poppets and patience beat brute ejector force.
- ✓Niche-specific defaults give a meaningful worked answer the moment the page loads
Frequently asked questions
What formula does the resin drying — tpu (shore 85a) use?+
It evaluates hopper = throughput × residence ÷ bulk density × (1+margin), exactly as published. Sources: Resin supplier processing data sheets (per-grade values govern); 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?+
TPU's rubberiness makes ejection the cycle's long pole — parts grab cores and drag; generous draft, air-poppets and patience beat brute ejector force. 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?+
Dryer settings and hopper sizing for TPU (Shore 85A): 80 °C, ~3 h at -29 °C dewpoint. A free injection molding cycle & process tool. An undersized hopper 'dries' resin for however long the throughput allows, not what the datasheet demands — the hopper IS the residence timer. 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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