Chained Production of Compression Springs for Autoinjectors Highest precision. Maximum reliability. Fully automated.

The right spring for every autoinjector platform
Autoinjectors typically require two springs that must meet the highest safety and performance requirements:

• Injection Spring:
  Responsible for the precise delivery of the drug, depending on viscosity, dosage, and injection duration.
• Safety Spring:
  Ensures the reliable deployment of the needle guard to prevent accidental injuries.

Thanks to our flexible manufacturing technology, we produce customer-specific variants for a wide range of requirements, precisely matched to your functional and performance parameters.

Technology that inspires confidence
Our state-of-the-art production line was developed together with experienced equipment and furnace construction partners.

The linked system components include:

• a high‑performance coiling machine,
• a drum furnace with a 4‑meter furnace wheel and up to 380 °C tempering temperature,
• selectable integrated steam cleaning,
• automated ejection of test springs for statistical quality inspection,
• a packaging machine for a wide variety of customer requirements in the cleanroom.

The Result
A unique, extremely flexible system that enables a wide range of spring designs in reproducible top quality. This once again underlines that we are a partner for innovation.

For decades, we have been developing and manufacturing even the most demanding springs. We bring this expertise into your projects, from the first prototypes to design‑for‑manufacturing support all the way to stable high‑volume production of components and assemblies.

Scheuermann + Heilig is your development partner when precision, safety, and scalability are crucial.