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Injection Moulding for Transparent Plastic Parts
Top Quality for a Perfect View
Transparent plastics offer great potential in various application areas. The design freedom offered by the injection moulding process and energy-efficient processing combine with the advantages of lightweight construction. This is especially important in the automotive sector. Optical and transparent plastic parts place high demands on processing.
Special screw geometries and different screw materials are designed for different materials, for example PMMA, PC or COC. The right geometry ensures gentle plasticising.
ENGEL's innovative injection moulding processes guarantee precision and absolutely flawless products. A patented multi-layer process supports you in the production of optical and transparent plastic components such as lenses of high quality and perfect transparency.
ENGEL is your reliable partner. Whether you are producing the smallest lenses for smartphone cameras, thick-walled automotive lenses or PMMA light guides. With structured solutions and pioneering injection moulding processes, we create high surface quality while adhering to the lowest tolerances.
Our optimelt sequence software solution is an important addition to our portfolio. It allows an extension of the machine sequence and opens up new plasticising possibilities. The melt is pressurised, which improves the melt quality, thus avoiding micro-defects in the transparent plastic component.
Special screw geometries and different screw materials are designed for different materials, for example PMMA, PC or COC. The right geometry ensures gentle plasticising.
ENGEL's innovative injection moulding processes guarantee precision and absolutely flawless products. A patented multi-layer process supports you in the production of optical and transparent plastic components such as lenses of high quality and perfect transparency.
ENGEL is your reliable partner. Whether you are producing the smallest lenses for smartphone cameras, thick-walled automotive lenses or PMMA light guides. With structured solutions and pioneering injection moulding processes, we create high surface quality while adhering to the lowest tolerances.
Our optimelt sequence software solution is an important addition to our portfolio. It allows an extension of the machine sequence and opens up new plasticising possibilities. The melt is pressurised, which improves the melt quality, thus avoiding micro-defects in the transparent plastic component.
 "Clemens Kastner | ENGEL")
Take advantage of our extensive experience and expertise in this area to make your products even better. We will be happy to advise you.
The optimelt sequence software reduces micro-defects in optical and transparent plastic components.
Injection Moulding Processes for Optical and Transparent Parts: An Overview
| Procedure | Product name | Industry | Application | Process |
|---|---|---|---|---|
| Processing of transparent materials | optimelt | Electronics, Automobile & Mobility | Lenses and light guides, Glazing | Production of transparent components for optical applications |
| Silicone injection moulding | LSR/LIM | Electronics, Automobile & Mobility | Lenses and light guides | Processing of materials that only cross-link in the mould |
| Injection compression moulding | coinmelt | Automobile & Mobility | Thin-walled glazing (combination with multi-component injection moulding possible), Head-up displays, Headlight covers | Production of particularly precise components by mould compression |
In order to further optimise the optical component qualities of PMMA light guides, for example, we create a close symbiosis between the machine and special peripheral devices.
The range is wide:
Dedusting devices for starve-fed plasticising with nitrogen flushing
High-resolution camera systems for inline quality control
This injection moulding process enables gentle plasticising and homogenising of transparent plastic melts.
By self-cleaning the plasticising unit, you can reduce material degradation. Trapped material would degrade in the plasticising unit.
The injection moulding process and the plant technology are fully adapted to the transparent plastic parts produced.
To use suitable peripheral devices, we integrate them completely into your production cell.
Better melt quality
Fewer impurities in the component
Micro-silicone parts, baby bottle teats or large-volume insulators are just a few examples of the use of LIM (liquid injection moulding). The technology for processing LSR is the first choice especially for optical components that are exposed to high thermal loads, as in LED headlights, for example. This allows you to produce parts from liquid silicone in a single step without reworking and waste.
Fully automatic silicone processing in injection moulding around the clock.
LIM injection units with screw conveyor or injection plunger.
Production support through various metering pumps integrated into the ENGEL control unit.
Depending on the application, hydraulic or all-electric, horizontal or vertical injection moulding machines.
Precise manufacturing
Low burr occurrence
Rework- and waste-free products
 "Lenses for LED Headlights with LIM")
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Precise surfaces for particularly high demands: With the ENGEL coinmelt injection compression moulding process, you can achieve perfect quality for your transparent plastic parts. From automotive glazing and optical lenses to moulding the finest, micro-scaled structures.
You need less injection pressure to produce transparent parts and so save energy.
The production of precise components with the same final wall thickness is possible.
Lower stresses in the component and thus less warpage.
Uniform impression of structures
More even material distribution for greater shape accuracy
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