Gesellschaft für Produktionsorganisation und rechnergestützte Technologien mbH

Entwicklungspartner für Prototypen und Kleinserien aus Metall und Kunststoff

Product development

We use state-of-the-art 3D scanning and measuring technology to record process-integrated geometry data ourselves as well as for the processing of left-over models. Our products and castings are manufactured according to the tolerances and dimensional specifications required by the customer, measured and stored the data defined for later follow-up.
In addition, we use a 3d-scan system for measuring tasks but also for unique items, parts without electronically available data or for the reproduction of (replacement) parts of older systems. 3d measuring arm: Combination device made of tactile and non-contact measuring head.

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3D printing / additive manufacturing

Two stereolithography machines (SLA 250/50, SLA 3500), the FDM process and a 3d powder binder printing system are available for creating master models.
Using these methods, we can produce generative models in the original material (FDM), temperature-sensitive functional models (SLA), transparent design models (SLA) or lost models for precision casting (SLA-tetrashell / quick cast; powder binder printing system).
Larger models - no matter which process built - are manufactured separately in parts and then joined. A special feature of our model making is the precise production of large PMMA and wax models for titanium casting in series quality but without fixed tools.

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Vacuum casting plastic

Based on a master model, we produce plastic parts using the vacuum casting process in silicone molds. This makes it possible to produce prototypes or small series of approx. 20 pieces per silicone mold with a high degree of image accuracy quickly and cost-effectively. The polyurethanes used provide prototypes with mechanical, thermal and optical properties that are very similar to those of plastic injection molded parts. Such parts are not only suitable for testing, they also close a gap in low volume end products (e.g., medical device housings). Dyes and surfaces can be implemented in almost all variants. Special requirements such as fire protection approvals or UV resistance are possible. By encapsulating inserts it is possible to produce composite parts (eg hard-soft combinations or metal composite).

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Investment casting metal

We produce metal castings based on self-made, lost models using two different precision casting processes.
In these, lost models are embedded in ceramic materials.
The model is burned out and you get a mold cavity for metal casting.
After solidification of the filled melt, the mold is removed and thereby destroyed.
This method is particularly suitable for metal parts including
- complex and undercut geometries
- thin wall thicknesses
- smooth surfaces

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Mechanical processing / assembly

For post-processing of castings, PORTEC CNC milling and lathes as well as heat treatment options are available. Pressure tests or sectional examinations are carried out in-house. For non-destructive microstructural testing, we are supported by longtime partners (X-ray, CT).

Mechanical Production:
- CNC milling technology
- CNC turning technology
- drilling and sawing technology

component assembly:
We incorporate components supplied by the customer into our metal and plastic housings. This includes the casting and encapsulation in silicone or injection molds.

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Surface finishing

To satisfy today's demands on the design of the surfaces of prototypes, we can offer different methods. These are listed here:
- Painting
- Powder coating
- Anodizing / Hard Coating
- Metal effect

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