Hot Runner Mold Quote Checklist: Gate Type and Maintenance Access
A hot runner mold quote that only states cavity count skips the gate and manifold decisions that drive both tooling cost and long-run maintenance. This checklist lists what to send before a hot runner tooling quote.
Hot runner mold quotes depend on gate type, manifold balance and maintenance access, not only cavity count.
Gate type and cosmetic impact
Valve gates leave a smaller, cleaner gate mark than open-tip hot gates, but cost more per drop. The choice should match cosmetic requirements and part function.
- Valve gate versus open-tip hot gate.
- Acceptable gate vestige on the finished part.
- Gate location relative to cosmetic and functional zones.
Manifold balance across cavities
An unbalanced hot runner manifold causes fill differences between cavities, which shows up as dimensional or cosmetic variation across a multi-cavity mold.
- Cavity count and layout symmetry.
- Naturally balanced versus artificially balanced manifold.
- Fill time and pressure variation tolerance across cavities.
Maintenance access and long-run planning
Hot runner systems need heater, thermocouple and nozzle maintenance over the mold life. Access planning at the design stage avoids costly rework later.
- Heater and thermocouple replacement access.
- Expected annual shot count and maintenance interval.
- Spare parts availability for the chosen hot runner brand.
Quoting a hot runner mold?
Send the cavity count, gate type preference and expected annual volume before requesting a tooling quote.