product: disposable sterile syringe push rods (common materials: medical - grade pp, pe)
mold configuration: 32 32 - cavity stack injection mold multi - point side - gate hot runner system
core challenges:
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the gate must not affect the sealing performance of the top of the push rod and the thrust surface at the end.
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the dimensional and weight deviations of the 64 - cavity products
need to be strictly controlled within a very small range (±0.03mm).
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meet the strict requirements of the medical industry for high - capacity production, low cost, and zero defects.
32 32 side - feeding stack mold hot runner solution:
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side - gate design: the gate is precisely positioned in the middle
of the side wall of the push rod, perfectly avoiding the functional
areas. no secondary processing is required after ejection.
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hot runner balancing system: adopt multi - stage manifold plates and
needle - valve hot nozzles (optional), combined with precise
temperature control to ensure extremely uniform filling of the 64
cavities.
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high - rigidity stack mold structure: special guiding and clamping
designs ensure accurate alignment of the upper and lower molds during
long - term operation and stable production.
achievements:
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soaring production capacity: the output per single machine has increased by over 100%, significantly reducing the unit cost.
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worry - free quality: the cpk of key product dimensions is ≥1.67.
the gate position is perfect, and both the appearance and functions meet
the standards 100%. the customer complaint rate is close to zero.
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high - efficiency automation: seamlessly integrated into the
automated production unit, reducing manual labor and improving overall
efficiency and cleanliness.
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drastic reduction of waste: no cold - runner waste, with a significant increase in material utilization rate.