“Brown Tool & Mold is a custom injection mold manufacturer and mold maker in Nebo, North Carolina.”
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- 86 Waterfall Trail Nebo, NC 28761
- 937-620-4261
- [email protected]
OPENING HOURS
- Monday - Friday:
- 7 AM - 4:30 PM
- Saturday:
- 7 am - 11 am
Estimates leader pin deflection under the weight of the moving mold half. Enter your pin geometry and plate dimensions — the tool computes load per pin, deflection, and a PASS/FAIL against the 0.002″ limit. Elastic modulus (E) is fixed for standard steel leader pins.
| Number of leader pins | count | Example: 4 pins | |
| Pin diameter, d | in | Pin diameter | |
| Unsupported pin length, L | in | Travel / exposed length | |
| Elastic modulus, E (leader pin steel) | 30,000,000 |
psi | Fixed value for standard steel leader pins (e.g. DME). Not editable — this is a pin property, not the mold base steel. |
| Top clamp plate thickness, t | in | Plate holding press-fit pin | |
| End condition factor, k | 0 to 0.25 | 0 = press-fit (rigid base — use for most pins). Up to 0.25 = slip-fit or loosely held pin that can rotate slightly at the base, which increases effective length and deflection. | |
| Effective length, Leff | 0.000 |
in | Leff = L + k × t |
| Plate / component | Qty | Length (in) | Width (in) | Thick. (in) | Density (lb/in³) | Weight (lb) | Notes |
|---|---|---|---|---|---|---|---|
| Moving plate | 0.000 |
Main moving plate | |||||
| Support plate | 0.000 |
Delete if not carried by pins | |||||
| Other moving component 1 | 0.000 |
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| Other moving component 2 | 0.000 |
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| Other moving component 3 | 0.000 |
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| Total moving-half weight, W | 0.000 |
Feeds the deflection calc. | |||||
| Total moving-half weight, W | 0.000 |
lb |
| Load per pin, P = W / n | 0.000 |
lb |
| Area moment of inertia, I = πd⁴/64 | 0.000000 |
in⁴ |
| Deflection, δ = P·Leff³ / (3EI) | 0.000000 |
in |
| Bending stress, σ = 32·P·Leff / (πd³) | 0 |
psi |
“Brown Tool & Mold is a custom injection mold manufacturer and mold maker in Nebo, North Carolina.”