Aluminum high pressure die casting

Our many years of experience in aluminum high pressure die casting enables us to produce gas-tight castings with an impressive weight of up to 330 kg and a maximum diameter of 1800 mm. These dimensions are unique in Europe and are a technical and, above all, economical solution to expensive sand castings.

Gravity die casting

With many years of expertise, we are able to produce gas-tight castings weighing up to 20 kg. On the basis of state-of-the-art casting machines with a casting pressure range of 180 to 3000 t, we can make a wide range of requirements.

Aluminum sand casting

Our sand casting capabilities enable us to produce gas-tight components weighing up to 1 ton.

CNC processing

Our CNC machining services are characterized by precision and efficiency. With state-of-the-art CNC machining centers, we are able to handle even the most demanding projects. Our services include:

  • Fully automatic tool loading 24/7
  • Weights up to 100 kg and workpiece diameters up to 1000 mm
  • State-of-the-art CNC machining centers
  • Maximum turning diameter up to 1050 mm
  • Maximum travel 4000 x 1200 x 1400 mm

Aluminum welding

Our expertise in aluminum welding and the production of gas-tight cast and/or semi-finished compounds enables us to produce precise and gas-tight compounds that meet the highest quality standards. We are able to weld thick aluminum sheets with a material thickness of up to 70 mm. We have the ability to offer both partially and fully automated welding processes. This not only ensures efficiency, but also the quality and cost-effectiveness of our work.


Our testing services include:

  • Hardness testing: We use modern techniques for hardness testing.
  • Chemical material analysis: Detailed material analyzes for your specific requirements.
  • Tensile testing: testing the mechanical properties of your products.
  • Helium leak testing: We offer both fully automated helium leak testing for products up to 100 kg and manual helium leak testing for larger products up to 1000 kg.
  • Pressure testing: Our pressure tests up to 150 bar ensure the safety and reliability of your products under various pressure conditions.
  • Integral leak measurement

At GSTech we attach great importance to quality and precision. Our modern testing procedures and highly qualified experts ensure that your products meet the most stringent requirements.


At GSTech we rely on the highest quality assurance and control in all of our business processes. Our commitment to quality and safety is supported by a variety of approvals, certifications and highly qualified specialist staff. Our relevant approvals and certifications include:

  • ISO 9001:2015: We are ISO 9001:2015 certified, which underlines our commitment to quality and continuous improvement of our processes.
  • SVTI: Our collaboration with the Swiss Association for Technical Inspections (SVTI) ensures that our products meet strict Swiss quality standards.
  • AD 2000-W 0: This approval shows that we meet the requirements for pressure equipment, which is crucial when it comes to safety and quality.
  • DGR 97/23/EC Annex I, paragraph 4.3: We adhere to the European Union guidelines regarding pressure equipment and ensure compliance with safety and quality standards.
  • AD 2000-HP 0: The AD 2000 regulations are anchored in the European Pressure Equipment Directive and ensure that our products meet the highest safety and quality requirements.


Our highly qualified teams consist of international welding experts who have comprehensive know-how and extensive experience in the field of welding technology. They are essential for ensuring the quality and reliability of our products.