Plastic injection molding is a critical piece of the manufacturing process for many 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 and have a deep understanding of the injection molding processes needed to get these devices to market.

Plastic Injection Molding Services

Our plastic injection molding services include molding, tooling, assembly, and quality management. Strict design protocols and process controls are followed to ensure 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. Gilero is ISO 13485 certified and follows Current Good Manufacturing Practices (cGMP).

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


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. To learn about Gilero’s other manufacturing facilities, visit our contract manufacturing page.


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.

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