Sprue Bushings and Gates
Sprue bushings, pinpoint gate bushings and runner components for injection molds — wear-resistant tool steel, precision-ground bores, HASCO / DME / MISUMI interchange, 3–7 day delivery.
Why Sprue Bushings and Gates
Sprue bushings, pinpoint gate bushings and runner components for injection molds — wear-resistant tool steel, precision-ground bores, HASCO / DME / MISUMI interchange, 3–7 day delivery.
- Sprue, pinpoint gate and runner component types
- Precision-ground bores with mirror finish
- HASCO / DME / MISUMI interchangeable dimensions
- Wear-resistant tool steel with optional coating
- Custom lengths and gate diameters per drawing
- MOQ 1 piece, 3–7 day standard delivery
GATE TYPES
Choosing the Right Gate System
| System | Best For | Trade-off |
|---|---|---|
| Cold Sprue | Simple, low-cost molds | Sprue waste, manual degating |
| Pinpoint Gate | Auto-degating, cosmetic parts | More complex bushing, higher pressure |
| Hot Runner | High volume, no sprue waste | Higher tooling cost, temperature control |
Not sure which gate system fits your part and volume? Our DFM review recommends the runner architecture with the lowest cost per part.
FAQ
Questions Buyers Ask
What does a sprue bushing do?
It forms the sprue — the main channel that carries molten resin from the nozzle into the runner system. The bushing is the first flow component in a cold-runner mold.
What is a pinpoint gate bushing?
A bushing that forms a small pinpoint gate at the part surface, used for auto-degating and clean part appearance in multi-cavity molds.
Which steel do you use?
Wear-resistant tool steel with precision-ground bore finish. Coated options for abrasive or glass-filled resins.
Do you match HASCO / DME / MISUMI dimensions?
Yes — standard interchange dimensions plus custom configurations per drawing.
What is the lead time?
Standard sprue bushings ship in 3–7 days; custom gate geometries 7–15 days.