Rubber & Silicone Parts

Formteile aus Silikon
Formteile aus Silikon

We manufacture customer-specific molded parts made of rubber, silicone and elastomer composite parts in small and large series production according to your sample or drawing.

Molded rubber parts are generally characterized by their good formability, chemical resistance, pressure and abrasion resistance and good electrical properties.

We advise you in detail on the selection of the suitable material, with a view to the functional description, temperature resistance, chemical requirements, weather influences and resilience.

Our molded parts are used in all industries, such as the automotive industry, medical technology, mechanical engineering and electronics industry.

We offer customized parts:
  • Protective covers for input devices
  • Rubber seals and rings
  • Grommets, flanges, bellows
  • Form Tubes
  • Rubber damper
  • PU molded parts (e.g. wheels and rollers)
  • Combined rubber-metal parts / rubber-plastic parts
  • etc.
MaterialsSilicone Covers / Seals2K injection molding3D Prototyping


We process all common materials in different hardnesses (ShoreA):

  • Standard materials such as NR, NBR, BR, EPDM, CR etc.
  • Elastomers: ACM, CSM, FPM, HNBR etc.
  • LSR – liquid silicone rubbers
  • TPE, TPU molded parts
  • Thermoplastics
  • Customized special mixtures

Silikon-Formteile für Automotive Anwendungen

Silicone Covers

Silikonhülle für Kunststoffgehäuse
Silicone covers offer many advantages to a handheld device. They protect the hardware from dirt and scratches, reduce damage and also the risk of slipping out of hand. N & H Technology produces customer-specific silicone or LSR protective covers of various hardnesses (Shore A40 – A70).

Depending on the application, an additional PU coating can be applied. The silicone covers are adapted to the existing housing and have a high customizability by the possibility of OEM lettering and specific markings.

Our engineers help you to design a silicone cover for your hardware. A prerequisite is an existing 3D file of the handheld device.


Multi-component injection molding

Formteile, Mehrkomponenten Spritzgussteile aus Kunststoff

Multi-component injection molding makes it possible to combine the positive properties of plastic and elastomer or metal in one component. This opens up a wide range of application examples.

Elastomer molded parts and plastic often appear together where the properties of a single component are insufficient. The hard component to absorb mechanical loads, the soft component as a seal, protection or cushioning. In a large number of cases, two separate components are designed for this. This leads to additional investments and effort in production and quality assurance, which can, however, be reduced by clever design in the development phase.

Metal and plastic parts can also be firmly connected using the insert technology . It is a process in which one or more components are connected to form a unit by being overmolded with plastic. Threaded sockets, screws, plug contacts or various inserts are placed in an injection molding tool and connected to the thermoplastic carrier material.

Hochtransparente 2-Komponenten Schutzhülle
Highly transparent 2-component protective cover

The outsert technique is similar to the insert technique; there, too, plastic elements are injected onto a metal carrier. The difference is that the metal insert has a larger volume than the plastic.

We offer proven manufacturing processes to combine several components in one product and have many years of experience both in plastic injection molding and in the manufacture of technically sophisticated silicone components. From this we draw the necessary synergies to develop solutions together with our customers.

We have also already implemented projects with 3 connected materials . Metal elements can be molded with plastic and at the same time equipped with an elastomer seal.

Formteile aus Elastomer-Metall Verbund
Molded parts made from elastomer-metal composite

3D Prototyping


3D drucker stratasys F370
3D drucker stratasys F370

In the field of prototyping via 3D printing, we have been working with well-known providers for years. To expand our range of services, we now offer prototyping in-house.

With the Stratasys F370 3D printer, we produce prototypes and devices from real plastic up to a size of 355 x 254 x 355mm, with an accuracy of ± 0.2 mm. In addition to the materials ABS, ASA, PLA and TPU, the materials PC-ABS, static dissipative ABS-ESD7 as well as tough and chemical-resistant PA6.6 MF07 (Diran) can be processed.

With 2 heads the F370 is able to print the product material and the soluble support structures at the same time. In a subsequent ultrasonic bath, the support structures are washed out without manual removal.

We also work with a 3D printer using stereolithography technology (SLA). With SLA technology, liquid resin is cured in layers using a UV laser. The individual layer thickness can be varied in the range of 25 µm – 100 µm