How to choose a medical partner in plastic injection molding?

The process of injection molding is common but not many is well equipped to produce intricate medical parts (i.e. clean room plastic injection). Look for partners that showcase a good history of serving the medical industry with a stable source of raw material supply.

In addition, partners with quality management systems and quality standards should be selected to ensure that products meet customer requirements and standards, minimizing the occurrence of NG products.

Look for partners with ISO13485 certification. Such partners have reliable supply chains and efficient production processes, and quality is guaranteed saving you time & costs with consistent delivery of good products

What are the common plastics used in injection molding for medical products?

Polyetheretherketone (PEEK): An engineering plastic commonly used in medical applications because it resists gamma radiation and autoclaving, both of which are used for sterilization. PEEK has excellent mechanical properties, resists chemical and thermal degradation, and can withstand long-term liquid immersion.

Polyetherimide (PEI): A heat-resistant thermoplastic that combines stiffness and stability with low flammability and smoke production. PEI’s environmental resistance and high impact strength make it ideal for applications such as medical parts and components.

Thermoplastic Elastomer (TPE): Thermoplastic elastomer (TPE) or thermoplastic rubber (TPR) is a mixture of rubber and plastic materials. Injection-molded TPE is commonly used in medical devices including breathing tubes, valves, catheters and ventilation masks.

What is injection molding?

Injection molding is a process for manufacturing plastic products, also known as plastic injection molding. It is to inject molten plastic into a mold and form a product of the desired shape and size after cooling and solidification.

Mainly, granular or powdery raw materials are added to the silo of the injection molding machine. After being heated and melted, they become fluid. When the screw or piston rod of the injection molding machine moves, they enter the mold through the nozzle and the pouring system of the die-casting mold. The concave mold is shaped in the concave mold of the mold. After the product is completely solidified, the mold is opened and the finished product is taken out.