The
16 Cavity Big Bottom Cap Mould is a high-productivity solution engineered for large-scale bottom cover production, ideal for manufacturers with high-volume output requirements. Its compact mechanical layout features sixteen evenly spaced cavities, arranged to ensure balanced force distribution during
Injection Molding. This symmetrical design minimizes
mold deflection caused by uneven pressure, extending the mold’s service life while maintaining consistent part quality across all sixteen cavities.
The gating system combines
Hot Runner technology with needle valve gates, a configuration that delivers precise control over the plastic melt flow. The hot runner ensures uniform temperature distribution, preventing material solidification in the flow channels, while the needle valve gates provide accurate timing and flow control for each cavity. This results in consistent filling speeds and pressure across all sixteen cavities, with dimensional errors of finished bottom covers controlled within an impressive ±0.05mm. The inlaid structure of the core and cavity is another key design feature, allowing for easy replacement of vulnerable components such as gate inserts and cavity surfaces. This modular approach reduces maintenance costs by more than 60% compared to traditional one-piece molds, as only worn parts need to be replaced rather than the entire mold.
The cavity surface is treated with a proprietary hard film coating, which increases wear resistance by three times compared to untreated steel. This coating extends the mold’s service life to an impressive 1.2 million cycles, making it a cost-effective solution for long-term production runs. The combination of high productivity, consistent quality, low maintenance costs, and long service life makes the 16 Cavity Big Bottom Cap
mould an excellent investment for manufacturers looking to optimize their large-scale bottom cover production processes.






