Thermoplastic injection molding
We do not only consider the injection molding process itself. We ask which material is suitable for application, which geometry can be manufactured in a process-safe manner, and how the initial idea can be turned into an economical mass-produced solution.
Key data in focus
Technical thermoplastics and selected high-performance plastics
Materials
25–300 t
Locking forces
Small, medium and large series
Series
up to about 500 g
Component weights
ISO 9001
Made in Austria
Special solution
What is thermoplastic injection molding possible makes
In thermoplastic injection molding, Plastic granules are heated, plasticized and homogenized in the plasticizing unit. The plastic melt is then injected under pressure into the mold. There it fills the cavity, cools down and solidifies to the desired component geometry. After opening the mold, the molded part is removed.
Thermoplastics can be reused warms up and processed Whether a material is suitable for the use of recyclates or for a material recycling process depends on the type of material, thermal and mechanical stress, contamination, and the required component properties.
Complex geometries
Ribs, domes, clips, guides, openings or integrated fastening elements can be incorporated directly into the component. This results in molded parts that can perform multiple functions and reduce additional machining steps.
Repeatable quality
A precisely designed tool and a stably controlled injection molding process form the basis for consistently uniform components. Dimensional accuracy, weight, surface finish, and functionality can be reproduced within defined tolerances.
Functional integration
Mounting elements, snap connections, guides, reinforcement ribs, and mounting areas for seals can be integrated directly into the component geometry. Depending on the material and tool concept, soft sealing or damping areas can also be injection molded. This reduces assembly time and additional connection points.
Variety of materials
Whether lightweight PP, impact-resistant ABS, dimensionally stable POM, temperature-resistant PC or fiber-reinforced engineering plastics: The choice of material depends on the application. Mechanical stress, temperature, chemicals, friction, electrical properties, surface finish and lifespan must all be considered together.
Economic serial production
Injection molding is particularly effective when repeated components need to be produced in larger quantities. After the tooling is created, many molded parts can be produced with short cycle times and consistent quality. Whether the process is economically viable depends on the quantity, geometry, material, tool costs, and expected lifespan.
Which solution is suitable for your component?
Not every component requires the same tool technology or process. The appropriate The solution depends on the geometry, material, quantity, tolerances, surface finish and function. Together, we examine which route is technically feasible and economically viable.
Classical thermoplastic injection molding
A thermoplastic material is melted and injected into a mold. After cooling, the component is removed from the mold. This process is suitable for a wide range of molded parts – from simple covers to technical functional parts with complex geometries.
- Efficient production of repeatable components
- high design freedom with appropriate construction
- suitable for small-scale and mass production
- Many thermoplastics and technical compounds are processable
Precision injection molding
When tight tolerances, defined dimensions or high repeatability are required, the material, component geometry, tool and process must be precisely matched. Shrinkage, temperature control, pressure, cooling and demolding all affect the achievable dimensional accuracy.
- for durable technical components
- coordinated tool and process design
- Consideration of fatigue, delay and temperature
- suitable for high requirements on function and repeatability
Fiber-reinforced thermoplastic
Glass or carbon-fiber reinforced thermoplastics can improve the rigidity, strength, or dimensional stability of a component. At the same time, the fibers change the flow behavior, shrinkage, and tool loading. Therefore, experience is needed in material selection, component design, and processing.
- higher stiffness and strength with appropriate design
- Improved dimensional stability in defined load directions
- Potential for weight savings compared to metallic solutions
- Consideration of fiber orientation, shrinkage, and tool wear
Recycle-based solutions
Thermoplastic injection molding can also be implemented with materials from secondary raw materials – provided that the material quality, component function, and process requirements match. Among other things, availability, variation in properties, color, surface requirements, and the desired lifespan are considered.
- Circulation instead of compromise
- Use of secondary raw materials in suitable applications
- Technical evaluation of material and component function
- Development of a solution that remains technically, economically and processable
Special solutions
When standard materials or standard processes are not sufficient, we think further. Together, we examine alternative material combinations, tool concepts, and process paths. The coordination remains direct from the initial feasibility study to the serial production implementation.
- customized solutions for complex requirements
- Technical evaluation of material, geometry and process
- Integration of toolmaking and manufacturing
- Development from the first prototype to a reliable series solution
Where thermoplastic injection molding His strengths playing out
Machine and plant construction
Enclosures, covers, guide elements, mounts, protective parts and technical functional elements benefit from the great freedom of design and reproducible manufacturing.
Electronics
Housing, covers, plug components, sensor holders and controls often combine mechanical, electrical and optical requirements. Depending on the application, insulating, dissipative, flame-retardant or temperature-resistant materials can be used.
Construction industry
Fixing elements, protective caps and technical components for construction and installation applications must be robust, dimensionally stable and capable of enduring prolonged use. Depending on the application area, additional requirements for UV and weather resistance, moisture resistance, temperature changes, chemical resistance or electrical properties must also be met.
Consumer and utility goods
Even for visible components, the technical design is crucial: Haptics, surface finish, color, stability, and economical production must all be in harmony. Thermoplastic injection molding enables reproducible implementation of form and function.
Why Filzwieser for Thermoplastic injection molding the right partner is?
Thermoplastic injection molding is successful when Material, component geometry, tool and process We identify these connections early and develop a viable solution – from the initial idea to the implementation of the series.
What we are distinguishes
- Experience with technical thermoplastics and sophisticated compounds
- Technical evaluation of material, geometry, tolerances and process
- in-house toolmaking for close coordination between tool and production
- Short routes – directly with the expert, without a sales buffer
Frequently asked questions
When is thermoplastic injection molding economical?
There is no universally applicable minimum number of items. Tool costs, component size, cycle time, material, variants, and expected lifespan Cost-effectiveness is influenced by the economy of scale. With higher quantities, injection molding can particularly benefit from repeatable processes and short production times. For smaller series, we assess whether a suitable tooling concept or an alternative manufacturing strategy is more advantageous.
What must be considered when designing a plastic injection mold?
Important points include, among others: uniform wall thicknesses, deformation angles, sensible separation gaps, suitable injection points, cooling, shrinkage, and the position of ribs or domes. Tolerances, surfaces and subsequent assembly should also be considered early on. A precision injection molding design creates the foundation for a stable process and economical production.
When is thermoplastic injection molding not the best solution?
Not every plastic part should be automatically injection molded. With very small quantities, frequently changing variants, or particularly simple geometries, other methods may be more economical. Therefore, we not only examine how an idea can be implemented in injection molding, but also whether injection molding is the best way. Because good plastic technology starts with the right questions.
Can thermoplastic injection molding be implemented with recycled materials?
Yes, in suitable applications materials from secondary raw materials can also be used. The required properties, the available material quality, the processing, and the desired surface and dimensional accuracy are crucial factors. Recycled material is therefore not a one-size-fits-all material decision, but rather part of a comprehensive technical assessment.