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High-quality plastic injection-molding tools for series production

LANGER is your competent partner with all-round service for the manufacture of injection-molding tools. Customers from all sectors of industry profit from our bespoke services in the field of tool and mold construction. We manufacture injection-molding tools in a wide range of shapes and sizes and find the ideal solution for every order.
Use our high-quality injection-molding tools made of steel and also other materials for the following applications:
  • Injection-compression molding 
  • MuCell® / chemical foaming
  • Integration of heating duct systems 
  • Fusible core injection molding 
  • Internal gas-assisted injection molding 
  • Water-injection molding
  • Extrusion blow molding / plastic housing 
  • Assembly injection molding 
  • Two-component injection molding 
  • Molding around inserts
During the design of plastic injection-molding tools, we draw on 49 years’ experience gained during our company's history. We ensure the consistently high quality of our products using computer tomography, laser scanning as well as optical and tactile measurement. We deliver to customers all around the world and pay heed to a resource-conserving and sustainable way of working during mold construction.

Mold construction: These are the advantages of molds from LANGER

Injection-molding tools are permanent molds that are required to manufacture parts during plastic injection molding. Plastic injection-molding tools are generally made out of metal and have a hollow core. If molten plastic is injected, this takes on the exact form and surface finish of the mold. Plastic injection molds allow a large variety of different parts to be manufactured. Your cost-effectiveness increases with the quantity of parts manufactured, meaning that injection-molding tools are ideally suited for series production.

Using modern 3- and 5-axis milling centres, we manufacture precise plastic injection molds by means of CNC machining to meet the customer’s individual requirements. From simple to highly complex molds, we provide you with custom tools in wide-ranging sizes. Our high-quality injection-molding tools allow for cost-saving and reliable manufacturing of parts in low- and high-volume series.

Send us a non-binding request now and we will advise you!

Reinhold Wesselak – Sales manager for tools / injection moulding
Sales manager for molding tools / injection molding
Reinhold Wesselak
+49 7558 930-806
Send E-Mail
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Jens Scheuble – Head of department for prototype moulding tools
Head of prototype injection molding tool department
Jens Scheuble
+49 7558 930-107
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Martin Schlegel - Head of department for serial moulding tools
Head of series injection molding tool department
Martin Schlegel
+49 7558 930-805
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Mold construction: Flexible manufacturing from a single source

As an all-round service provider in mold construction, we want to cater for your wishes quickly and directly. LANGER thus excels due to short decision-making paths, customer-oriented production control, 24-hour production and express service. The modern machine park with pallet changers guarantees the economical and rapid processing of your orders.

Numerous satisfied customers bear witness to our high degree of customer orientation. Among others, we receive orders for plastic injection molds from customers in the automotive, construction, medical technology, mechanical engineering and electrical engineering sectors.

From consultancy to quality control, you receive all services from a single source. In the process, the communication via EDI enables simple and flexible data exchange with our customers.
Customers in the following fields also profit from our high quality standards:

Plastic injection molding
Cubing model construction
Inspection tool and gauge manufacturing
Renewable energy

Tools for injection molding: Uncompromising quality in mold construction

We implement your wishes in tool manufacturing precisely down to the last detail. State-of-the-art quality control measures and experienced staff ensure the consistently high quality of our series production tools, multi-component tools and prototype tools.  Our all-round service includes tool commissioning and optimisation at the customer. In addition, we are happy to make modification to third-party tools.

Exemplary sustainability: Responsible injection-molding tool construction

We set great store by environmentally friendliness during all process steps. The plastic mold construction is extremely sustainable and resource-conserving. We minimise the amount of waste material and recycle to a very large extent. Furthermore, we offer reusable packaging for finished products. 

Compact overview of services

Compatible materialsPolypropylene (PP, PP-GF), thermoplastic elastomers (TPE), polyamides (PA, PA-GF), plastics with and without filler materials
Mold size96x96 mm to 1396x1396 mm
Tool weightUp to 10 t
Closing force20 t to 900 t
Tools Multi-component tools, valve gate tools, turntable tools, transfer tools, hybrid tools, hot-gas welding tools, prototype and series-production vibration welding tools, ultrasound welding jigs, ultrasound welding tools
Manufacturing technologiesCNC milling, die-sink EDM, start-hole drilling, deep-hole drilling up to a diameter of 50 mm, wire cutting, hard milling, high-speed milling, simultaneous milling, flat grinding, plate machining, polishing work, milling of electrodes out of graphite and copper
Assembly work Ultrasonic welding of plastics, vibration welding of plastics, manual or automated component group assembly
Certificates ISO 14001, IATF 16949, ISO 50001, ISO 9001, DIN ISO 45001, TISAX, AEO, Energy Efficiency and German Sustainability Code

Mold construction for plastic parts: Advantages of the injection-molding process for series production

Today, it is impossible to imagine modern industry without the injection-molding process. It is with good reason that it is the most commonly used process for automated production of plastic parts. As an experienced manufacturer of injection-molding tools, we support our customers in wide-ranging sectors with our tool and mold construction services.

The advantages of injection molding at a glance:
  • Precise reproducibility: If a large number of identical parts are required, injection molding is the ideal manufacturing process. It guarantees absolute precision no matter how many parts are produced. This makes it an exceedingly reliable method for the manufacture of precise parts.
  • Hardly any rework: Injection-molded parts require little to no rework after removal from the mold. For the customer this results in cost and time savings.
  • High level of economic efficiency: It is possible to produce almost any number of copies of a part with a single mold. The greater the quantity, the lower the mold construction costs for each item. Series production using injection molding technology is thus an exceedingly cost-saving process.

What are the different types of injection molding?

During the manufacture of plastic injection-molded parts, one generally differentiates between duroplasts, thermoplastics and elastomers. Here, thermoplastics have the greatest economical significance. Although the different materials differ significantly with regard to their properties, in principle they are all brought into their desired form in the same way by means of injection molding.

Mold construction: Your project is in good hands with the tool supplier LANGER GROUP

✔ Pre-engineering
Before the actual manufacturing, we contribute our huge repertoire of know-how and experience to your project.  
virtuelle simulation
✔ Virtual simulation
We avoid rejects and waste material and save time and costs by digitally testing the injection process beforehand.
✔ Automation
Thanks to a high degree of automation, we manufacture high-quality parts in large quantities on a daily basis.
weltweite lieferung
✔ Global delivery
We offer quality "made in Germany” and that all around the world. We would also be happy to deliver plastic injection-molded parts to your country.

Injection-molding tool construction: How is a project conducted at LANGER?

As a full-service partner, we are ready to support you during every step of your project. A qualified contact person is available to help you at all times. This is how a project is conducted at LANGER:


Our specialists contribute their skills to your order right from the start. Qualified staff from different departments work together to find the perfect solution to cater for your needs. In this way, you profit from our wealth of experience and know-how during every phase of your project. 

Mold development

We assume responsibility for the complete planning and design of your injection-molding tools. Upon request, our mold development team will support you with the design of your parts to ensure that they are suitable for the tools and the injection molding process. Tell us what your injection-molding tools are required for and which properties they should have. If you already have a draft design, we would be happy to help with its further optimisation. We offer CAD part and tool design on the basis of CATIA as well as CAM programming (NGC CAM solution).

Mold construction

One of our core competencies is mold construction. Your expectations with regard to the finished injection-molded parts are put into practice with absolute precision. We adapt a large range of standard tools to suit the customer requirements and are thus the ideal partner for all sectors.

Quality control

When you commission LANGER to manufacturer injection molds for plastic parts, nothing is left to chance. After all, the key factors for tool construction are absolute precision and close tolerances. Our in-house quality control includes laser scanning, optical and tactile measurement, 3D measurement on milling centres, 3D coordinate measuring machines, bursting pressure tests, tightness tests, measurement of milling tools, spotting presses as well initial sample test reports. The evaluation is carried out using the software Polyworks. We create measurement reports according to the drawing or the measuring plan. Meticulous measurement equipment management guarantees the reliability of all control processes.

Logistics service

We deliver all around the world and are familiar with the challenges that can arise with international shipments. For this reason, we offer our customers comprehensive storage and logistics solutions including customs clearance and a transport service. In the process, we pay attention to continuous article traceability. We would be happy to enter individual agreements with regard to our customers’ post-series and spare-parts supply. 

Flexible tool construction for every requirement

We offer customers in all industries comprehensive services regarding all aspects of series-production injection-molding tools and pay strict attention to part design that is suitable for plastics. The requirements on injection molds vary depending on the industrial sector and project. That is why we cater for the wishes of every customer individually. Upon request, we realise, for example, injection-molding tools with hydraulic functions, multi-cavity molds or molds with hot-runner technology and needle shut-off.

Here are a few examples from our mold construction service portfolio:
  • Injection-molding tools for cable guides
  • Injection-molding tools for cable brackets
  • Injection-molding tools for air ducts
  • Injection-molding tools for covers
  • Injection-molding tools for brackets
  • Injection-molding tools for panels
  • Injection-molding tools for structural components
  • Injection-molding tools for intake manifolds
  • Injection-molding tools for cylinder head covers
  • Injection-molding tools for housings for thermal control units (oil management units)
  • Injection-molding tools for dehumidifiers
  • Injection-molding tools for air filters
  • Injection-molding tools for expansion tanks
  • Molding around inserts (bushings, strainers, fleece, fabric)
  • Filter housings
  • Air flap systems
  • Cylinder head covers
  • Engine compartment parts
  • Bottom panels
  • Small fixtures in general

Injection-molding tool design: Made in GermanyFull service for maximum customer satisfaction

LANGER is your tool design specialist with all-round service. We consider ourselves to be not only a service provider, we would also like to provide you with comprehensive support during your project. With our broad service portfolio, we are ready to help you with every stage of your work. From the idea to the finished tool, we are the ideal partner for every industry and every project.

Let us convince you, too, through our customer-oriented way of working. Close cooperation with our customers, transparency and on-time delivery are just a few examples of the qualities that distinguish us as a tool manufacturer. Our qualified employees welcome every new challenge and would be happy to also find the ideal solution for your project.  
Have we aroused your interest?
Arrange an appointment for a non-binding consultation now!

Sales manager for molding tools / injection molding
Reinhold Wesselak
+49 7558 930-806
Send E-Mail
Download VCard (.vcf)