Plastic Syringe Component Injection Molds

Plastic syringe component injection molds are specialized molds used for manufacturing high-precision medical-grade syringe parts, including barrels, plungers, gaskets, caps, and needle hubs.

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产品描述

Plastic Syringe Component Injection Molds

1. Introduction

Plastic syringe component injection molds are specialized molds used for manufacturing high-precision medical-grade syringe parts, including barrels, plungers, gaskets, caps, and needle hubs. These components require strict dimensional accuracy, superior surface quality, and compliance with medical safety standards. Syringe molds are widely used in medical, pharmaceutical, and laboratory applications, ensuring high production efficiency and product consistency.

2. Characteristics of Plastic Syringe Component Injection Molds
- High Precision & Tight Tolerances: Ensures accurate volume measurements and smooth plunger movement.
- Medical-Grade Mold Materials: Typically made from S136, 2316, and H13 stainless steel, which offer high wear resistance and corrosion resistance.
- Multi-Cavity Design: Supports 8, 16, 32, 64, or even 128 cavities for high-volume production.
- Hot Runner System: Reduces material waste and enhances production efficiency.
- Mirror-Polished Surface Finish: Ensures smooth plastic parts for better usability and contamination prevention.
- Biocompatible Materials: Supports medical-grade PP (Polypropylene), PE (Polyethylene), and PC (Polycarbonate) for safe medical applications.
- Efficient Cooling System: Conformal cooling channels improve cycle times and prevent defects like warping.
3. Manufacturing Process of Plastic Syringe Component Injection Molds

1. Mold Design
- 3D CAD Software (e.g., SolidWorks, UG, CATIA) ensures precise component geometry.
- Mold Flow Analysis (Moldflow, Autodesk Simulation) prevents short shots, weld lines, and shrinkage.
- Thin-Wall Molding Optimization: Ensures consistent wall thickness to maintain part transparency and strength.
2. Mold Fabrication
- CNC Machining: Provides ultra-precise mold cavity shaping.
- EDM (Electrical Discharge Machining): Creates complex details such as measuring scales and small internal structures.
- High-Gloss Polishing: Ensures a smooth interior for syringe barrels and plungers, reducing friction.
- Texturing & Laser Engraving: Adds graduation marks, logos, and anti-slip textures.
3. Injection Molding Process
- Material Selection: Uses medical-grade plastics that are durable, chemically resistant, and sterilizable.
- High-Speed Injection Molding: Ensures fast cycle times and consistent part quality.
- Thin-Wall Injection Molding: Produces lightweight and transparent syringe barrels.
- Multi-Shot & Overmolding: Used for rubber seals and soft-touch plungers.
4. Quality Control & Inspection
- Dimensional Accuracy Testing: Measured with CMM (Coordinate Measuring Machine).
- Surface & Optical Clarity Inspection: Ensures smooth, defect-free transparency for syringe barrels.
- Leak & Pressure Testing: Ensures airtight seals between plungers and barrels.
- Sterility & Biocompatibility Testing: Verifies material safety for medical use.
4. Applications of Plastic Syringe Component Injection Molds
- Medical & Healthcare: Disposable syringes for hospitals and clinics.
- Pharmaceutical Industry: Pre-filled syringes for drug delivery.
- Laboratory Equipment: Precision syringes for scientific and industrial use.
- Veterinary Applications: Syringes for animal healthcare.
5. Conclusion

Plastic syringe component injection molds play a critical role in the medical industry by enabling high-speed, precise, and hygienic production of essential syringe parts. With advanced mold design, superior machining, and strict quality control, these molds ensure safe and reliable syringe components for global healthcare needs.Contact NeedMold,Email us: manager@needmold.com