Injection- and compression-moulded partsBellows and other moulded parts
We can produce moulded parts in medium and large quantities in a particularly economical way using injection- or compression-moulding processes. These enable us to produce bellows in a variety of sizes, but also in completely individual shapes, e.g. for cover caps. Depending on your requirements, we use elastomer formulations with varying degrees of hardness: highly flexible, or strong and dimensionally stable – your particular application is decisive. Do you have specific colour requirements? No problem. We can compress and inject moulded parts in the colour of your choice (as far as the required plastic permits).
The compression moulding method
The compression moulding method (CM) is the traditional process for producing rubber-moulded parts. In this process, an uncured rubber mixture is manually placed in a heatable vulcanising mould. The mould is then closed in a press.
Due to the pressure generated by the press and the mould temperature, the rubber softens, begins to flow and thus fills the mould cavity. After a defined amount of time, the vulcanised part is removed.
The injection moulding method
In the injection moulding process, an elastomer compound is preheated and plasticised in an injection moulding machine and then injected into a heated mould. After vulcanisation, the finished part can be removed from the mould. Compared to the compression moulding process (CM), IM (injection moulding) is the more modern process that enables significantly shorter cycle times to be achieved.
Reasons to choose injection- and compression-moulded parts made by innoFlex®:
- Particularly economical in medium and high quantities
- Made from high-quality elastomers
- High dimensional stability
- Hardness and resistance according to individual requirements
Product details
Material
To provide you with the best possible solution for your specific application, innoFlex® offers you a particularly broad range of materials for injection- and compression-moulded parts. After thoroughly analysing your requirements, we will work together with you to find the optimum material – and therefore the best injection- and compression-moulded parts for your application.
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Injection- and compression-moulded parts – material overview |
Natur-Kautschuk |
Styrol-Butadien-Kautschuk |
Ethylen-Propylen-Dien-Kautschuk |
Butyl-Kautschuk |
Chloropren-Kautschuk |
Epichlorhydrin-Kautschuk |
Nitril-Kautschuk |
Hydrierter Nitril-Kautschuk |
Chlorsulfoniertes Polyethylen |
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| Abbreviations | NR | SBR | EPDM | IIR | CR | ECO | NBR | HNBR | CSM | |||||
| Trade names, e.g. | SMR/SVRS | Buna SB/Europrene | Buna EP/Keltan | Exxpro/Butyl | Baypren/Neoprene | Epichlomer/Hydrin | Perbunan/Krynac | Therban/Zetpol | Hypalon | |||||
| Hardness scale Shore A | 30-90 | 39-95 | 20-95 | 30-80 | 25-90 | 40-90 | 30-95 | 45-98 | 45-90 | |||||
| Mechanical properties at room temperature | Resistance to tearing | |||||||||||||
| Elongation at break | ||||||||||||||
| Rebound elasticity | ||||||||||||||
| Tear resistance | ||||||||||||||
| Abrasion resistance | ||||||||||||||
| Resistance to permanent deformation | At high temperatures | |||||||||||||
| At low temperatures | ||||||||||||||
| Thermal behaviour | Flexible at low temperatures down to °C | -55 | -30 | -50 | -60 | -35 | -35 | -30 | -45 | -30 | ||||
| Max. Continuous operation temperature in °C | 80 | 100 | 130 | 130 | 100 | 130 | 110 | 150 | 130 | |||||
| Resistance to | Petrol | |||||||||||||
| Petroleum (at 100 °C) | ||||||||||||||
| Acids (25% sulphuric acid solution at 50 °C) | ||||||||||||||
| Alkalis (50% sodium hydroxide solution at 50 °C) | ||||||||||||||
| Water (at 100°C) | ||||||||||||||
| Weather and ozone | ||||||||||||||
| Air impermeability | ||||||||||||||
| This illustration only reflects the possibilities of individual recipes. | Assessment: | Very good | Good | Satisfactory | Adequate | Insufficient | ||||||||
| Only limited conclusions can be drawn about specific mixtures. | ||||||||||||||
Please note:
If you are unable to find the right material for your specific application, just speak to one of our applications technicians.
We will be happy to provide you with expert individual assistance.
Connections and accessories
In order to integrate the new injection- and compression-moulded parts in your application in a functionally reliable manner, innoFlex® offers you a wide range of connections and accessories. Just speak to our technicians about your specific application. Together we will find the ideal connections and accessories for your injection- and compression-moulded parts.
Special designs
