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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.
Advantages of Injection Moulding for Transparent Plastic Parts
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.
Advantages of Injection Moulding for Transparent Plastic Parts
Gentle plasticising thanks to optimum machine design
Special screw geometries and different screw materials are designed for different materials, for example PMMA, PC or COC. The right geometry ensures gentle plasticising.
Patented multi-layer process for better component quality
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.
Solutions for a wide range of applications
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.
Increase melt quality with software solutions
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.
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Take advantage of our extensive experience and expertise in this area to make your products even better. We will be happy to advise you.
Defect-free Interior for Brilliant Images
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 |
Details of our Injection Moulding Processes for Optical and Transparent Plastic Parts
Processing of Transparent Materials
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
Your Advantages with the optimelt Process
Gentle Processing
Gentle Processing
This injection moulding process enables gentle plasticising and homogenising of transparent plastic melts.
Plasticising Unit Cleans Itself
Plasticising Unit Cleans Itself
By self-cleaning the plasticising unit, you can reduce material degradation. Trapped material would degrade in the plasticising unit.
Component-compatible Process and Plant Technology
Component-compatible Process and Plant Technology
The injection moulding process and the plant technology are fully adapted to the transparent plastic parts produced.
Integration of Suitable Peripheral Devices
Integration of Suitable Peripheral Devices
To use suitable peripheral devices, we integrate them completely into your production cell.
Result
Better melt quality
Fewer impurities in the component
Silicone Injection Moulding
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.
Your Advantages with LIM
Efficient Manufacturing
Efficient Manufacturing
Fully automatic silicone processing in injection moulding around the clock.
Variable Systems
Variable Systems
LIM injection units with screw conveyor or injection plunger.
Perfect Support
Perfect Support
Production support through various metering pumps integrated into the ENGEL control unit.
Individual Solutions
Individual Solutions
Depending on the application, hydraulic or all-electric, horizontal or vertical injection moulding machines.
Result
Precise manufacturing
Low burr occurrence
Rework- and waste-free products
 "Lenses for LED Headlights with LIM")
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Injection Compression Moulding
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.
Your Advantages with coinmelt
Lower injection pressure requirement compared to injection moulding
Lower injection pressure requirement compared to injection moulding
You need less injection pressure to produce transparent parts and so save energy.
Lower Shear with the Same Final Wall Thickness
Lower Shear with the Same Final Wall Thickness
The production of precise components with the same final wall thickness is possible.
Less Component Warpage
Less Component Warpage
Lower stresses in the component and thus less warpage.
Result
Uniform impression of structures
More even material distribution for greater shape accuracy
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