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Side feeding system

32+32 side feeding stack mold hot runner system

Success Story: Mass Production of Precision Medical Syringe Push Rods

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:

  • The gate must not affect the sealing performance of the top of the push rod and the thrust surface at the end.
  • The dimensional and weight deviations of the 64 - cavity products need to be strictly controlled within a very small range (±0.03mm).
  • 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:

  • 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.
  • 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.
  • 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:

  • Soaring Production Capacity: The output per single machine has increased by over 100%, significantly reducing the unit cost.
  • 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.
  • High - Efficiency Automation: Seamlessly integrated into the automated production unit, reducing manual labor and improving overall efficiency and cleanliness.
  • Drastic Reduction of Waste: No cold - runner waste, with a significant increase in material utilization rate.

Tel:4000965808