This 4-cavity TPE/PVC injection mold is designed for efficient, high-volume production of flexible plastic components with consistent quality and tight dimensional control. It is suitable for processing thermoplastic elastomers (TPE) as well as soft or semi-rigid PVC materials, commonly used in automotive parts, consumer products, electrical accessories, and medical-related items that do not require Class III certification.The mold features four identical cavities laid out for optimal balance of flow and cooling. This configuration increases productivity by producing four parts per cycle while maintaining uniform filling and shrinkage behavior. The gating system is engineered to ensure balanced flow to each cavity, reducing the risk of short shots, weld lines, and warpage. Depending on product requirements, either cold runner or hot runner systems can be adopted, with the hot runner option helping to minimize material waste and improve cycle time.High-quality mold steels are selected for the core and cavity inserts, providing good wear resistance, corrosion resistance, and dimensional stability under continuous cycling with soft materials such as TPE and PVC. Surface finishes are tailored to the product: high-polish surfaces where transparency or gloss is required, or textured surfaces where grip, aesthetic appearance, or scratch hiding is important. Venting is carefully designed to release trapped air during injection, especially critical for flexible materials that can burn or degrade if vents are insufficient.The cooling system uses conformal or optimized channel layouts to achieve uniform temperature control across all four cavities and critical mold areas. This helps to reduce cycle time while maintaining part quality, preventing sink marks and dimensional deformation. Independent cooling circuits can be integrated to fine-tune the temperature profile, which is particularly important for PVC to avoid thermal degradation and discoloration.The mold structure is designed for rigidity and long service life. Standardized mold bases, alignment components, and ejector systems facilitate maintenance and parts replacement. Ejection can be realized by ejector pins, stripper plates, or custom lifters, depending on the geometry and softness of the molded parts. Smooth and uniform ejection is important to prevent deformation of flexible parts, so contact surfaces and ejector layouts are carefully engineered.For PVC processing, corrosion-resistant components and proper venting are given special attention due to the material’s sensitivity to temperature and possible release of corrosive gases. For TPE, the design focuses on flow path, gate size, and gate location to minimize shear and maintain the elastomeric properties of the final parts.Overall, this 4-cavity TPE/PVC injection mold emphasizes productivity, stability, and ease of operation. By combining balanced runner design, robust steel selection, precise machining, and optimized cooling and ejection systems, it enables repeatable mass production of flexible components with reliable dimensions, surface quality, and mechanical performance over an extended production life.