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What our customers say

"Special Supplier of the Year 2022 - for fast uncomplicated support in supply bottleneck situations from Key Account Römheld. You have convinced us with a special service and thereby achieved a special supplier/customer loyalty. We at Römheld GmbH Friedrichshütte sincerely congratulate you on this success and thank you for your special commitment and dedication. Your performance for quality in service deserves our special recognition. We wish you continued success."
Rudolf RackersederRÖMHELD GmbH
"We experience the cooperation as very result-oriented. The effective combination of design, simulation and prototypes/tools as well as the quality of the delivered parts makes you a valuable partner. The ability to react to dynamic boundary conditions as well as challenges that arise at short notice should be emphasized. Possibilities are always openly weighed and discussed together with the risks. It is important to mention that we particularly appreciate the speed of communication, as we always have all the information at hand. Working with you has made our own way of working a bit more professional."
Robby ZitzmannABB AG
"From the idea to the product it is a very long way with many ups and downs. Who motivated us again and again were you. Partners who have brought in competent services and high-quality parts, with whom we have always worked together towards a goal, but above all partners who have confirmed us in what we are doing - thank you for that."
Bianca Triulzi & Thomas TraubEbano Design GmbH
"Significantly shortened project time compared to conventional test tools, attractive price-performance ratio, parts at series level, high adherence to schedules and excellent communication during the entire project phase. This is excellence!"
"I would like to take this opportunity to thank you for the close and orderly cooperation during the project. The cooperation was extremely solution-oriented and characterized by above-average commitment. Many thanks for this!"
Michel SchneiderThomas Magnete GmbH
"In order to be able to constantly improve our product, we are happy to call on their expertise. Barlog stands out for always providing us with competent and fast help."
Thank you very much for the customer-oriented support and the extensive expertise of the BARLOG Plastics team - thanks to you, both the components and the tools could be correctly designed and the appropriate material and colour selection made. We are thrilled and look forward to further cooperation with you!
"BARLOG Plastics is much more than just a service provider. The team is extremely competent, always friendly and has always patiently supported me in bringing my project to market quickly and from there onwards. Many thanks for the excellent collaboration, which I would be happy to recommend!"
Daniela Mündlersamplistick GmbH

With virtual molding and FE analyzes, quickly and reliably from the idea to the series

In the permanent “time-to-market” race, product life cycles and thus also product development cycles are becoming shorter and shorter. Traditional product development reaches its limits here – often associated with expensive and lengthy adjustments in the later project phases. The result: missed deadlines, unplanned costs and dissatisfied customers. The use of CAE makes it possible to realize a large part of the product development virtually and to achieve better products much faster. Simulation identifies neuralgic points in the design at an early stage and thus enables a reduced use of materials and a design that is suitable for loads and tools. Expensive change loops in a late project phase can thus be prevented.

Error prevention instead of error detection

The Rule of Ten for defect costs shows how significant the cost reduction can be. It defines that the costs for an undetected defect increase by a factor of 10 per value creation stage.

Conversely, this means that a development phase that is optimally supported by computer-aided engineering (CAE) saves costs because errors can be detected and eliminated more quickly in the value chain. The focus is always on error prevention and not on error detection at a later stage of the project.


Integrative simulation

In particular, the coupling of process and load simulation and the automatic processing of extensive variant tests by means of DoE (Design of Experiments) lead to considerable savings.

In our CAE Services (Computer-Aided Engineering) business unit, we offer, among other things, the execution of injection molding simulations, FE structure analyses and component development, individually or combined in a package, as a service. We work with state-of-the-art software packages.

Your benefits at a glance:

The benefits of our CAE services

Accelerated product development

Leverage virtual product development through CAE to identify early design neuralgic points and reduce time-to-market.

Comprehensive material and process know-how

Our many years of experience in the selection and processing of engineering plastics & high-performance polymers is your added value in our development services.

Minimize project costs

Error prevention in the early project stage through CAE, since the cost of an undetected error per value-added stage increases by a factor of 10.

Increased material efficiency

Identify critical areas of the article and realize them via a load- & tool-appropriate design with a reduced material input.

Theory & practice combined

We attach great importance to validation: our simulation engineers always accompany the initial sampling of previously simulated prototypes at our company.

Agile collaboration

Agile methods and development assignments closely interlocked with our customers: A cooperative partnership at eye level as the key to success!

Increased product safety

By simulatively shifting the weight to the beginning of the development (front loading), errors are avoided instead of being discovered later.

Fast material data record determination

A simulation result is only as good as the material data entered at the beginning. If data is missing or if there are doubts, we can fall back on our own test laboratory.

Cross-functional engineering team

Our engineering team works together in an interdisciplinary manner and is trained close to practice: Dual apprenticeships in the fields of design, tool mechanics or plastics molding.

CAE & Engineering - From your inquiry to order fulfillment.

Request a quote and upload data
Advice on the service/scope
Quotation preparation within 2 working days
Commissioning of the engineering service
We do the job in close consultation with you
Discussion of the results
Satisfied customer - thank you for your trust!
Our services
Injection molding

The art of plastics lies in correctly predicting the material’s behavior in the injection molding process and to take this into account in the component and mold design. (…)


FE structural analyses are used to model and calculate the geo-metries and load cases of a component or assembly. (…)


Injection molded articles in the direct vicinity of power batteries, electric motors and other heat other heat radiating power sources can bring economic as well as function-integrative advantages. (…)


How much material is necessary for a component to withstand the required loads? How do I achieve the maximum stiffness with the minimal use of material? (…)

Magnetic field

Are you considering replacing a sintered solenoid with an injection-molded solenoid in order to tap new economic reserves? (…)

Design &
Article development

Do you need help with the implementation of your idea in the form of plastic components? You don’t know whether your plastic component can be produced by injection molding? You want to replace a metal component with plastic? (…)


Benefit from our many years of experience as plastics experts in your development work. We are at your side to advise you in project work on all aspects of plastics. (…)

Design for

In DFM analysis, our engineers evaluate manufacturability at an early stage of the project based on your article design or molding concepts. The early optimization of part geometry (…)


We bring sustainability into your product development. Our BARLOG ECO-Consulting evaluates
sustainability potentials from the
material selection to series production (…)

You have questions
about our services?

Then do not hesitate to contact us. Together we will
take a look at your request and will be happy to advise you.

Contact without obligation

Our application examples

Case Study
Coffee-to-Go-Becher: KEBALLOY ECO
Read more

Everything you need to know.

Here you can find more information about our products.

Injection molding simulation

The art in plastics lies in correctly predicting the material behavior in the injection molding process and taking this into account accordingly in the component and mold design. The higher the demands on the quality of the component and the more complex the geometry, the more demanding this task is. Traditional product development quickly reaches its limits, and one risks expensive and lengthy adjustments in the later project phase. The result: missed deadlines, unplanned costs and dissatisfied customers. In our CAE Services (Computer-Aided Engineering) business unit, we offer injection molding simulation as a service for both thermoplastics and LSR (Liquid Silicon Rubber). Depending on the customer’s task, we simulate the various aspects of injection molding using the SIGMASOFT® Virtual Molding software package. The different processes can be used to avoid additional costs and time delays when the mold is actually already supposed to produce components.


Simple filling simulation

Our team evaluates whether a part can be filled with the chosen material, where it is best to gate it, how weld lines and fiber orientations form, and where the risk for surface defects and air entrapment occurs.


Simulation of cooling behavior as well as shrinkage and warpage

Taking into account the holding pressure and cooling phases, we can also simulate shrinkage and warpage, and in this way generate important information for material- and production-oriented component optimization.


Calculation of the thermal budget

We calculate the thermal budget of the entire mold over several process cycles. In this way, we can also detect temperature effects that only build up over time.


Determine and create material data records


We determine material data sets for injection molding simulation, production-oriented optimization of component design and comparison of theory and practice using test molds in the injection molding pilot plant.


DoE (Design of Experiments)


In order to shorten the number of iteration loops in the development of a component, injection molding simulation can be supported by means of statistical design of experiments (DoE). With a view to a target result, the best possible injection molding parameters, gating points or geometry alternatives can be found.

Structural FEA

Structural FEA are used to model and calculate the geometries and load cases of a component or assembly. The result can be used for material selection, geometry optimization or strength verification. Simulation makes it possible to identify the neuralgic points in the design at an early stage, thus reducing material usage, enabling a design that is suitable for the load, and preventing expensive change loops at a late stage in the project.

Particularly for plastic parts subject to high mechanical loads, fiber-reinforced materials are often used whose mechanical properties vary anisotropically, i.e. depending on the direction of the fiber orientation. In order to obtain the most accurate calculation results possible, it is necessary to know the fiber orientation and to incorporate it into the structural analysis. In a so-called integrative simulation, the fiber orientations are transferred to the structural analysis and taken into account with the aid of an injection molding simulation. For initial calculations, material comparisons and especially for non-reinforced materials, the model can be simplified to such an extent that integrative simulation is not necessary and normal structural analysis can be used.

In the injection molding simulation, the filling of the cavity with plastic melt is first calculated. Depending on the injection point, the wall thickness design and the process parameters, a filling pattern results.

The flow processes during filling of the cavity provide for the expression of the fiber orientation through shear and elongation flows, which can also be calculated and represented with the aid of injection molding simulation. The fiber orientation is transferred to the FE mesh and the anisotropic material properties are entered.

With the results obtained in this way, the mechanical load can be predicted much more accurately than with common isotropic calculations. The result: no “fear surcharges” that take the form of unnecessary material consumption and no unexpected weak points due to weld lines or unfavorable fiber orientation.

By coupling injection molding simulation and FE structure analysis, you can achieve even better injection molded parts even faster – with safety and maximum material efficiency.

In order to be able to make a reliable statement about the mechanical performance of your thermoplastic component, we use ANSYS mechanical. Due to the discretization of the component in finite elements, it is possible to calculate complex components. For each finite element a system of equations is solved, which are then combined into an overall system of equations and whose solution can be read and interpreted.

The following list describes various problems and evaluation options that can be investigated and avoided with the help of structural analysis:

  • possible deflection of snap hooks
  • Material selection
  • deformation due to defined load
  • resulting stresses
  • resulting forces

We provide you with the evaluation of the simulation results with problem areas as well as optimization suggestions in a final report. On request and in case of big time challenges, we can present the results live to you and only derive measures for the time being, so that your time bottleneck does not become even tighter. You will then receive the final report a few days later.

Picture: Load in carabiner 2.0 under tensile load

Is your component subjected to internal pressure in the application? A defined force is acting on your component? Or the snap-fits are deflected by 0.3 mm during assembly? Then it is important to test whether your selected material can withstand these loads and whether the geometry of your component is suitable for the application. Such a check is possible with a structural analysis. The results of a structural analysis can also help you to simulatively test a selection of different materials before you make a final decision.

Thermal simulation of (thermally conductive) plastic articles

Injection molded articles in the direct vicinity of powerful batteries, electric motors and other heat-radiating power sources can bring economic as well as function-integrative advantages. But how do thermally conductive plastics (e.g. KEBABLEND / TC) behave in direct comparison to classic polymers or alternative materials with a special focus on their thermal conductivity? Where are bottlenecks in energy transport that can often be corrected with slight design changes, e.g. in the cooling fin geometry?

This is where thermal steady-state or thermal transient simulations of injection molded articles with ANSYS can help. If required, our calculation engineers will show you direct comparisons with other materials in the simulation to increase the understanding of efficient thermal management in conjunction with cost reduction through injection molding production. The issue of thermal expansion and any resulting stresses and deformations can also be investigated by simulation.

Concrete application possibilities:

  • Making effects visible in the use of thermally conductive plastics e.g. studies on the cooling of high-voltage batteries or LED sockets
  • Clamping/loading with different thermal expansion behavior in assemblies
  • Solve problems with heat accumulation / insulation with plastic articles
  • Optimization of cooling fin geometry
  • Consideration of direction-dependent heat conduction
Topology optimization of injection molded plastic components

How much material is necessary for a component to withstand the required loads?
How do I achieve maximum stiffness with minimum material input?

The answer to these questions is provided by topology optimization, a computer-based calculation method in which the optimum component shape is found taking into account the given boundary conditions.

To do this, we first work with you to define the boundary conditions of the optimization, which include the maximum permissible installation space and all unchangeable areas, such as bolt-on surfaces that must not be changed. Analogous to a pure structural analysis, the load introduction and the clamping of the component are determined in the next step.

The FEA program then automatically removes the material everywhere that does not contribute to the stiffness and thus does not absorb any load. In the end, the result is usually a bionic structure that represents the optimum geometry with maximum stiffness and minimum material usage. This material saving results not only in a weight reduction, but also in a cost reduction at the same time.

The results of the topology optimization can not only be used to directly manufacture the component in 3D printing, but also serve as the basis for a design that is suitable for load and production. Through additional boundary conditions, such as the definition of a demolding direction, the constraints of injection molding are already taken into account during the simulation.

Magnetic field simulations for plastic-bonded magnets

Are you considering replacing a sintered magnet with an injection-molded magnet in order to tap new economic reserves?We use FE-based magnetic field calculations to support our customers in the development of injection-molded magnets. Our support begins in the concept phase, where we investigate and evaluate initial concept ideas with regard to feasibility in magnetic injection molding. When designing the magnets, we naturally always keep an eye on the subsequent manufacturability in the injection molding process right from the start. Here, we combine our many years of know-how in the field of magnet materials with our wealth of experience in design suitable for plastics. The combination of rheological and magnetic component design provides our customers with the decisive acceleration effect in the development and implementation of their products to series maturity. The tasks that are investigated by means of magnetic field simulations are of a diverse nature: Design of magnets for sensors (calculation of the flux density as a function of the sensor distance)

  • Calculation of permanent magnets (holding magnet, magnetic couplings, magnetic springs, haptic applications, etc.)
  • Simulation of rotor magnets for pumps and BLDC motors (flux density profile over the angle of rotation)
  • Magnetic design of injection molds for the production of plastic-bonded magnets
Design & article development of injection molded plastic components

Do you need help with the implementation of your idea in the form of plastic components?

You don’t know whether your plastic component can be produced by injection molding?
You want to replace a metal component with plastic?

Then you have come to the right place! BARLOG Plastics GmbH offers you an “all-round carefree package” for the article development of injection-molded plastic components.

The development process takes place iteratively. In addition to years of know-how in classic product development, results from the FE structure analysis and injection molding simulation flow into the plastic-compatible design, which we carry out with the CAD software SolidWorks.
The filling behavior during the manufacturing process plays a major role. In the case of filled materials, for example, weld lines and fiber orientation have a significant influence on the mechanical properties of the component. The results of an injection molding simulation support the load-appropriate design and can be transferred to the structural analysis by means of integrative simulation, so not only isotropic, but also anisotropic material properties are taken into account in the FEA simulation.

Contrary to the widespread guideline from the textbook to use constant wall thicknesses in the entire component, post-pressure-optimized jumps in wall thickness are in many cases the better solution for injection-molded design – from the injection point close with thicker walls to thinner wall thicknesses at the end of the flow path. Using the example of an edge protection bracket, the variable wall thickness profile has led to an enormous improvement in the supply pressure, which could be analyzed using an injection molding simulation.

With regard to a tool-compatible design, it must be ensured that the injection molding tool is the negative of the plastic component. Fine rib geometries lead to high, thin webs in the tool, which either cannot be produced or are only associated with high production costs.
Engineering Consulting

Benefit from our many years of experience as plastics experts in your development work. We are at your side to advise you in project work on all aspects of plastics.

Together with our customers, we want to develop the best possible solution for every plastics-related task and conquer new markets together with our customers.

Possible consulting topics:

  • Support for the selection of materials
  • Feasibility evaluations of your concepts
  • Concept development for your ideas
  • Series Transfer
  • Design for Manufacturing (DfM) Report
  • Damage analysis
  • Reverse Engineering
  • Metal replacement
  • Evaluation of tool concepts
  • Lifetime evaluation of technical plastic components

Contact us, we will be happy to support you!

Design for Manufacturing

In DFM analysis, our engineers evaluate manufacturability at an early stage of the project based on your article design or molding concepts. The early optimization of part geometry, injection mold and injection molding process enables you to reduce molding and development costs and also increase implementation speed and on-time delivery:

Review of the component:

  • Mass accumulations/thin spots
  • Draft angles
  • Undercuts
  • Wall thickness variations
  • Suggestions for changes are implemented directly in CAD

Injection molding simulations with a view to:

  • the pressure requirement during the filling phase
  • the risk of potential air inclusions
  • the risk of potential weld lines
  • the risk of potential flow seams
  • the temperature development on the component incl. hot spots
  • the risk of potential sink marks
  • the cooling behavior of the component
  • the expected sealing time
  • the holding pressure effectiveness
  • the shrinkage and warpage tendencies
  • if applicable, inserts and their deflection through the injection molding process

The effects of different gating points and geometry optimizations are documented comparatively.

Proposal for a mold concept:

  • Separation
  • Slide
  • Position of the gating point
  • Ejector positions
  • Critical venting points in the mold

Effects of minor/allowable part changes on manufacturing costs.

Comparison of the initial version with the optimization in the injection molding simulation.

In summary, based on your article design or molded part concepts, we evaluate the implementation in the injection mold as well as in the manufacturing process itself already in an early project phase and intervene optimizing together with you. In addition to the classic DFM analysis as a representation of the ACTUAL state, we see this analysis as active development support.


We bring sustainability into your product development. Our BARLOG ECO-Consulting evaluates sustainability potentials from material selection to series production.

Sustainability from the idea to series production

We not only work actively ourselves to reduce our carbon footprint (CFP) and improve it along the entire supply chain.
We also support you in becoming more sustainable in your production processes. We look both “upstream” – toward suppliers – and “downstream” – toward customers and their products.

3 service modules, 1 goal: BARLOG ECO-Consulting

1. ECO-Selection
We support you in selecting the right material – while keeping an eye on the resources of our planet.
Whether recycled polymers from post-consumer or post-industrial waste or individual recycled components such as carbon fiber: Based on an existing product, we compare the materials currently used with various material alternatives for you – in terms of material technology, environmental technology, production technology.

2. ECO-Design
Together with you, we develop the best possible component design – also with regard to design-for-repair and design-for-recycling. By means of topology optimization or screening of the injection molding process, we go in search of unnecessary material accumulations. We help you to design your products in such a way that they can be recycled or repaired more easily and completely and are manufactured in a resource-efficient way.

3. ECO-Simulation
We simulate your production cycle – revealing if and where cycle time reductions or better temperature control layouts would be possible. Do you always have several temperature control units with very high temperatures in use? Your temperature control system is always running at full load to maintain the desired surface temperature in the mold? Shorter cycle times, fewer temperature control units or lower supply temperatures as well as precisely placed heating cartridges ensure energy savings – and thus lower CO2 emissions!

Contact us, we will be happy to advise you!


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questions about our
products or services?

Then make an appointment with us.
Our team will be happy to advise you in a
personal conversation or by e-mail.

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