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Picture shows production of car glazing made of polycarbonate

Automotive glazing made of polycarbonate

Injection moulding of highly transparent plastic panes

High precision and melt quality are required for the production of highly transparent plastic parts. The gentle plasticising of the material and the platen parallelism of our injection moulding machines makes the production of car windscreens made of polycarbonate is possible. Benefit from our many years of experience and know-how in process engineering.

Automotive glazing: Advantages with ENGEL in the production of car windscreens
Optimum melt quality for crystal clear results
Picture shows plasticising components manufactured in-house by ENGEL

When processing polycarbonate for optical applications such as automotive glazing, panoramic roofs or lenses, flawless component quality is essential. Optical blemishes significantly reduce the quality of transparent plastic components. Streaks or yellowing lead to rejects and additional costs. At ENGEL, we develop and produce plasticising components in-house. You receive customised screws and non-return valves. The result: the best possible melt quality.

Exact plate parallelism for maximum impression precision
Picture shows clamping unit of a duo injection moulding machine from ENGEL

Differences in wall thickness are a criterion for rejects, especially in transparent automotive glazing. With our automatic sheet parallelism control, you can produce car windows made of polycarbonate with low stress and reliability. In combination with our coinmelt injection-compression moulding process, precise components with the same end-wall thickness are produced.

Frame and pane in one step thanks to multi-component injection moulding
Picture shows mould interior of an ENGEL injection moulding machine

Produce the frame and your polycarbonate automotive glazing in one process step. Thanks to our powerful two-platen machine duo, you can process large-area transparent plastic components safely and cleanly, even in multi-component injection moulding. The generous mould space of our duo series also allows you to operate complex insert moulds. The compact design of the entire system saves valuable space even with very large moulds.

Overmoulding of glass panes
Picture shows overmoulded car window made of glass

Glass car windows can be directly overmoulded with a seal made of TPE or rubber. Benefit from the concept of our insert vertical injection moulding machine. Thanks to the vertical design and the easily accessible mould area, we can also implement your projects with complex automation.

Process support around the clock
Picture shows ENGEL application engineers

Are you struggling with process fluctuations? Your component suddenly has flaws? Our global application engineers support you with these challenges. Around the clock, whether on-site or remotely.

Solutions for polycarbonate car windows
Picture shows large injection moulding machine from ENGEL for large-area components

Hydraulic two-platen machine


The injection moulding machine for large-scale, transparent plastic parts

  • Precise thanks to plate parallelism control

  • Large clamping force spectrum

  • Multi-component solutions

Picture shows articulated arm robot from ENGEL

Articulated arm robot


Flexible handling of parts in all sizes

  • Load capacity up to 240 kg

  • Automation of injection moulding systems up to 55,000 kN

  • Integration in CC300 control unit

Picture shows car window made of polycarbonate

Injection moulding processes

optimelt & coinmelt

Production of transparent plastic components for car glazing such as car windows made of polycarbonate

  • Low residual stress

  • High dimensional accuracy

  • Optimum melt quality

Picture shows vertical injection moulding machine from ENGEL

Vertical injection moulding machine


The injection moulding machine for overmoulding inserts

  • Easily accessible tool room

  • Uniform clamping force distribution

  • Small footprint

Picture shows Head of Business Development Technologies

As a total solution provider, we know what our customers need in the field of car glazing. Whether embossing, multi-component injection moulding or complex automation - we have the solution!

Michael Fischer, Business Development Technologies

Christopher Stafford

Sales Operations Manager

Write to us

The ENGEL team will be happy to assist you with comprehensive know-how on the subject of injection moulding.

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