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Commonly used materials and characteristics for medical injection molding


In medical injection molding, engineering plastics that meet the requirements of the medical industry are usually selected. These plastics have varying degrees of biocompatibility, antibacterial properties, chemical resistance and other properties.

Injection molding is a common plastic processing technology. Molten plastic is injected into the mold under high pressure, allowing it to cool and solidify in the mold cavity, and finally form the required parts or products. Injection molding is widely used in the medical field. It specializes in producing various medical device parts, equipment casings and consumables.

1.What is medical grade plastic?

Medical-grade plastics are plastic materials specifically manufactured for use in medical devices and medical equipment. These plastics must meet strict hygiene, biocompatibility, antibacterial and chemical stability standards before they can be used in medical projects. Medical-grade plastics must comply with the medical device regulations and standards of various countries or regions, such as the requirements of the US FDA (Food and Drug Administration).

AbleMed specializes in injection molding of various medical grade plastics

2.Materials and characteristics of medical injection molding:

PEEK: Polyetheretherketone, has excellent mechanical properties, including high strength and hardness; can be used for a long time and remains stable at high temperatures of about 260 degrees Celsius, has good corrosion resistance to many chemicals, and is suitable for cleaning and disinfection , drugs and other medical environments; and PEEK is a relatively lightweight plastic with good biocompatibility and is often used to make implants and surgical instruments.

POM: Polyoxymethylene is also called polyoxymethylene ether. POM has excellent mechanical properties and is often used to process highly wear-resistant parts, such as gears and bearings. POM has good resistance to many chemical substances and is resistant to The stability of fuels, solvents and many greases is relatively high; and POM is easy to process and is a commonly used material for injection molding.

PEI: Polyetheretherketone, also known as Ultem or PEI plastic, PEI is a high-performance engineering plastic with excellent high temperature stability, dimensional stability against temperature changes, high strength and wear resistance in the face of chemical The material has good stability and a certain degree of biocompatibility, and can be used to manufacture medical device parts, transparent medical packaging, medical equipment shells, etc.

PPSU: polyphenylene ether sulfide polyether sulfone, withstands high temperatures of about 200°C, has good stability to solvents and acidic and alkaline substances, and PPSU has radiation resistance, so it can also be used in radioactive environments. PPSU is transparent , can be used to make transparent medical packaging, steam sterilization equipment, etc.

In addition to the above, there are also plastic materials such as polyethylene (PE), polypropylene (PP), polycarbonate (PC), silicone (Silicone), polyester (PET), fluoropolymer (PTFE), ABS, etc. There are good uses in all fields.

AbleMed is a one-stop processing factory for medical components

3.How to choose a medical injection molding factory?

When choosing a medical injection molding factory, the main factors to consider should include the factory's certification and standard compliance, rich experience and professional knowledge, advanced equipment and technical level, material selection and supply chain management capabilities, sound quality control system, Compliance and regulatory compliance, lead times and service reliability, reputation and manufacturing costs.


AbleMed is an injection molding manufacturer specializing in the medical industry. We are proud that we strictly implement the ISO 13485 system to provide customers with high-quality products that meet medical standards. We have advanced 100,000-level dust-free injection molding conditions and are committed to providing customers with first-class medical injection molding solutions. We have extensive experience in the field of mold manufacturing and injection molding, and through technological innovation and strict quality control, we ensure that every part we produce meets the highest industry standards. AbleMed features one-stop service, providing customers with comprehensive solutions from mold design to injection molding production, ensuring that customers can obtain medical device parts that are efficient, reliable, and compliant with regulations.

Common problem:

What are the commonly used plastic processing methods in medical treatment?

Commonly used plastic processing methods in the medical industry mainly include injection molding, extrusion molding, blow molding, vacuum forming, etc. These methods are widely used in manufacturing medical devices, medical equipment, packaging materials, etc.

What are the advantages of injection molding?

Injection molding has the advantages of efficient production, suitability for complex geometries, wide selection of materials, high precision and repeatability, low waste generation, cost savings, integrated production, high degree of automation, and suitability for mass production.

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