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.