Excellent qualifications combined with many years' experience of all processes involved in the production of plastics make us a reliable partner to plastics producers. The design principle employed by all Elektror products allows for straightforward and safe integration in plants and processes. Plastic manufacturing covers a very wide range of applications and is subject to short development cycles. Modern plants must be designed to meet requirements and to offer maximum efficiency so that they ultimately strike a balance between quality and economic efficiency.

Whether they're processing raw materials such as granulate or synthetic pellets, creating finished products for purely functional purposes or producing elegant plastic components, Elektor provides engineers and production experts with professional and reliable support during the planning phase. Air can be used in an incredible number of ways. Delivering, drying, conveying, mixing, cooling, suctioning and much more besides. Whenever the use of air is an option, it pays to talk to the airsystem experts at Elektror. Leading companies trust in our engineering expertise covering all aspects of fans, blowers and side channel blowers because they know that we go the extra mile in every phase of cooperation.

Our product management team is happy to answer any questions you may have.

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  • Depending on the quality requirements of the subsequent finished product, the granulate is dried (blower type: HRD, SD)
  • Metering and mixing granulate and aggregates
  • Conveying the metered granulate to the extruder (blower type: HRD, SD, 2SD depending on the distance between the metering system and the extruder)
  • The actual extrusion: Compacting the granulate using climate zones (cooling using blower type ND)

Schematic production process for blown film using Elektror blowers and side channel blowers


  • The range of applications is almost endless. The melted granulate can be used to manufacture the most diverse objects such as blown film, plastic cutlery, toys and the list goes on - our example illustrates the production of film.
  • A blown film machine blows the molten material like an air balloon and pushes the material upwards. This creates a film tube that is already cooled as it rises so that the desired state of the film is retained. (blower type: RD, CFL/CFM)
  • To create an almost endless length of film, the film bubble is cut open on both sides. Material residues are removed by the edge strip suctioning system. (blower type: HRD)
  • The film is turned using a turning bar system. This involves guiding the film over rollers that have small drill holes. Air blown through these drill holes, e.g. by a side channel blower (SD), creates an air cushion to keep the film from coming into contact with the turning bars.
  • Endless doesn't really go on for ever. When the film holder is full, the film is cut. The new film end is sucked on by vacuum (blower type HRD).
  • To prevent an electric charge building up on the film, a corona treatment system is used to ionise it and to modify its surface. Here too, the treatment rollers create an air cushion to protect the film. In this work step, any ozone created is sucked out (blower type RD).
  • At the end of the process, the film is rolled up and the end cut. To ensure that the new cut section can be wrapped around a roller, the film is suctioned with the help of a vacuum blower (SD).

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