Injection Molding

Injection Molding Services for Medical Devices

Gilero provides a range of manufacturing services, including plastic injection molding and injection mold tool building. We focus solely on the medical device and drug delivery markets. Our medical injection molding facilities follow strict design protocols and process controls to ensure that all products meet the required specifications. Depending on client needs and product requirements, we can offer manual or fully automated production lines for molding and assembly.

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Overview of Our Medical Injection Molding Services

Plastic Injection Molding

  • Cleanroom injection molding
  • Gas-assist, two-shot, insert and over molding
  • Pad printing & screen printing
  • Annealing, heat staking, ultrasonic welding & curing
  • First article inspection and capability analysis
  • Injection molding process validations
  • Real-time process monitoring


  • In-house mold toolmaking
  • High precision machining
  • Rapid tool iterations & modifications
  • Quick turnaround prototyping
  • Mold flow analysis
  • Scientific molding process development
  • Single cavity pre-production injection molds
  • High cavitation hot runner mold systems
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Located in Shenzhen, China, is Medacys – Gilero’s joint venture toolmaking and medical injection molder. This state-of-the-art injection molding facility spans 36,000 square feet and is staffed by manufacturing technicians, tooling designers, quality engineers, and engineering project managers. The expertise of the Medacys team focuses largely on the medtech and biomedical industries. With dedicated tooling, molding, assembly, and lab areas, along with environmentally monitored and controlled cleanrooms, our Shenzhen facility provides plastic injection molding services for companies across the globe.


Our facility utilizes high-precision plastic injection molding and injection mold tool building equipment. In-house injection molding machines range in tonnage from 30-Ton to 250-Ton. Injection molding capabilities range from single cavity, pre-production injection molds to high cavitation molding using a hot runner system. The injection molding equipment used by Medacys is manufactured by some of the most trusted brands in the industry, including Sumitomo (SHI) Demag, Toyo Machinery, and Haitian International.

Materials Used for Medical Injection Molding Parts

  1. Thermoplastics: The most commonly used material for injection molding. It includes materials like polyethylene, polypropylene, polystyrene, PVC, nylon, and PET. These materials have a low melting point and can be easily molded into a variety of shapes.
  2. Thermosets: Typically used for parts that require high strength and resistance to heat and chemicals. Examples include epoxy, phenolic, and melamine resins.
  3. Elastomers: These materials have high elasticity and can be stretched and bent without breaking. Examples include silicone rubber, neoprene, and polyurethane.
  4. Composites: Made from a combination of materials, examples include fiber-reinforced polymers (FRPs) and metal matrix composites (MMCs).

The choice of material will depend on the specific requirements of the part being produced, such as its mechanical properties, chemical resistance, and environmental factors like temperature and humidity.

Benefits of Medical Injection Molding Services

In comparison to other manufacturing practices, plastic injection molding for medical devices is very flexible and allows for full customization of components. It is used in high volume situations to fulfill injection molded medical device and drug delivery devices with high accuracy and precision. From an operational perspective, plastic injection molded medical devices are produced with low labor costs, are positioned to be scalable as the client grows in sales, and are more environmentally friendly due to the extended life of the product and reduction of waste.

Why Choose Gilero for Medical Device Injection Molding Services

Gilero stands out as an excellent choice for medical device injection molding manufacturing. Medacys, our joint-venture facility in Shenzhen, China, spans 36,000 square feet and is equipped with cutting-edge technology. The skilled team, comprising manufacturing technicians, tooling designers, quality engineers, and engineering project managers, specializes in the medtech and biomedical sectors. This specialization ensures a deep understanding of the unique requirements and regulatory standards in these fields. Gilero offers dedicated areas for various manufacturing processes, including tooling, molding, assembly, and laboratories. We maintain environmentally controlled cleanrooms for precision. Our in-house injection molding machines range from 30-Ton to 250-Ton, and they use equipment from trusted brands like Sumitomo (SHI) Demag, Toyo Machinery, and Haitian International. 

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