The Better Alternative to Pure Injection Molding
Plastic enclosures designed with cost-effectiveness in mind.
Without unnecessary tool costs. Without long delivery times.
Through a targeted combination of different manufacturing processes, we realize individual housing solutions faster and more cost-effectively than classic injection molding projects.
Certified according to DIN EN ISO 9001 & 14001
The Challenges
When Injection Molding Reaches Its Economic Limits
Injection molding is a proven process—but it is not always the most economically viable solution in every project phase. This is especially true when time, flexibility, and investment security are critical factors.
High Tooling Costs
Injection molding usually requires high investments in complex tools – long before the final quantity is secured. This ties up capital and increases the economic project risk.
Long Lead Times
Tool design, manufacturing, and sampling significantly extend time-to-market. Especially with tight project schedules, this can lead to critical delays.
Limited flexibility for changes
Constructive adjustments after toolmaking cause additional costs. During ongoing development, every change quickly becomes economically problematic.
Uncertain production volumes
In early project phases, sales volumes are often not yet precisely calculable. However, a classic tool only pays off with clearly defined series sizes.
The Alternative to Traditional Molding Tools
Hybrid housings through a targeted combination of processes
Not every project requires a classic injection molding tool. The decisive factor is which method is technically and economically sensible in your current project phase.
At KT Kunststofftechnik, we analyze requirements, quantities, and timeframes and combine manufacturing processes so that your housing can be realized faster, more flexibly, and more cost-effectively.
Certified according to DIN EN ISO 9001 & 14001
Our manufacturing processes
The right technology for every project phase
Not every enclosure requires the same approach. The key factors are the stage of development, production volume, budget, and likelihood of changes. We selectively employ different technologies—either individually or in combination—to deliver the most cost-effective solution for your project.
FBS – Milling / Bending / Welding
CNC-machined components are bent and permanently bonded together using a chemical process. This method is particularly well-suited for small and medium-sized production runs, as well as for projects that are likely to undergo frequent changes.
Hybrid solution using injection molding, thermoforming, or 3D printing:
Injection molding
Injection molding offers a high degree of design flexibility and low unit costs for large production runs. This requires the manufacture of molds.
Hybrid solution with FBS:
Thermoforming
Deep drawing is particularly well-suited for large-surface-area housing bodies with uniform wall thickness. Tooling costs are lower than those for conventional injection molding.
Hybrid solution with FBS:
Additive Manufacturing / 3D Printing
Additive manufacturing allows prototypes and small production runs to be produced quickly. It offers a high degree of design freedom.
Hybrid solution with FBS:
Our Products
Custom plastic solutions for industry and electronics
Based on the appropriate manufacturing strategy, we develop and produce custom plastic solutions—from individual components to complete housing systems.
Plastic Housing
Custom plastic enclosures are precisely tailored to electronic assemblies, control devices, and industrial applications.
Learn more
Plastic Parts & CNC-Milled Parts
We manufacture precision components made of plastic and composite materials in sizes ranging from a few millimeters up to 2000 × 1000 × 25 mm.
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Membrane Keyboards & Touchscreens
Custom membrane keyboards and touchscreens can be seamlessly integrated into plastic or aluminum enclosures.
Learn more
KT Box©
Under our KT Box© brand, we create sustainable plastic products with a focus on durability and recyclability.
Learn more
The Project Process
From the initial request to mass production
Contact Us
Here's how we'll get your project off the ground together
01
Submit request
Please send us your sketch, description, or CAD data. Even initial ideas or general specifications are sufficient for us to provide an estimate.
02
Technical Coordination
During a personal meeting, we will discuss your requirements, quantities, budget, and timeline, and work together to define a practical approach.
03
Quote & Project Launch
You will receive a detailed, non-binding quote. Once you approve it, we will begin development, prototype production, or mass production.
Your benefits at a glance
Cost-effective enclosure solutions
Our approach combines technical feasibility with economic soundness. The result is not just a functional enclosure—but a solution that provides long-term security for your project.
Greater planning certainty
You can realistically assess investments and unit costs at an early stage. This provides you with a reliable basis for your project decision.
Lower investment risk
Tools are used only where they make economic sense. This keeps initial costs manageable and predictable.
Shorter development times
Combining the right processes shortens lead times. Your project will reach production readiness faster.
High flexibility for changes
Design modifications can also be implemented cost-effectively at a later stage. This increases reliability when it comes to technical advancements.
About Us
Experience that ensures projects make it to production
Since 1999, we have been supporting companies in the industrial and electronics sectors with the development and manufacture of custom plastic enclosures. Our goal is to combine technical feasibility with economic efficiency.
As a process-independent manufacturing partner, we are not limited to a single manufacturing process. This allows us to evaluate projects objectively and implement the most appropriate solution for each case—from design through to series production.
Quality & Certification
Our processes are certified to DIN EN ISO 9001 and DIN EN ISO 14001. This ensures structured procedures, documented quality, and responsible conduct.
Personalized support
You will work with dedicated contacts who will guide your project from the initial inquiry through to mass production. Clear communication and technical transparency are always our top priorities.
Otto Huth - Owner and Managing Director of KT Kunststofftechnik GmbH
News
News from Development and Manufacturing
June 1, 2026
New Website
Our new website is live! In the “News” section, we will be providing regular updates on developments at KT Kunststofftechnik.
April 1, 2026
Rising electricity prices
Rising energy costs make cost-effective product development more important than ever. The right manufacturing solution helps reduce costs and use resources efficiently.
December 5, 2023
ISO 9001 and 14001 Certification
Our new ISO 9001 certificate, issued by TÜV Austria.
February 9, 2023
Compressed air
We are reducing our use of compressed air. To save energy, KT-Kunststofftechnik relies on small blowers that replace energy-intensive compressed air.
February 4, 2023
Transport
KT-Kunststofftechnik will be using an electric van in the future to make small deliveries more environmentally friendly.
January 17, 2023
Social Media
Our own brand, KT Box, is now on Instagram. Follow @ktbox.official to see a wide variety of photos of our products.
September 20, 2022
KT-BOX: KT KUNSTSTOFFTECHNIK'S OWN BRAND
We manufacture and sell sustainable plastic products. All of our products are durable and 100% recyclable.
March 18, 2022
Electrical Operations
The company vehicles of KT Kunststofftechnik in Balingen and in Switzerland are now exclusively electric.
January 4, 2022
KT Kunststofftechnik Schweiz GmbH
Since January 2022, our Swiss customers have been served and supplied by KT Kunststofftechnik Schweiz GmbH. This brings us closer to our customers, and we handle all export and import activities.
October 15, 2021
First hybrid housings
KT Kunststofftechnik is developing the first hybrid housings that can be manufactured using both milling, bending, and welding (FBS) technology and injection molding.
September 1, 2021
EMBRAER PORTUGAL
EMBRAER PORTUGAL Estrutura em Compósitos lists KT Kunststofftechnik as a supplier.
November 1, 2020
KT Box
With our new private label, KT Box, we offer versatile plastic enclosures that can be ordered from our shop in quantities as small as one.
FAQ
Frequently Asked Questions
When is injection molding a cost-effective option?
What production volumes are possible with alternative methods?
Can changes be made to the housing at a later date?
Do you also work with existing designs?
How quickly can a project get started?
Is Europe-wide cooperation possible?
Let's get your project started together
Whether it’s a sketch, a description, or CAD data—we’ll review your project and develop the most cost-effective enclosure solution. During a no-obligation initial consultation, we’ll clarify your requirements, quantities, and general conditions, and outline the most sensible approach for your project.
Certified according to DIN EN ISO 9001 & 14001
KT Kunststoff GmbH - Plastic enclosures designed with cost-effectiveness in mind.
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