Insert Molding

Insert Molding

Sometimes the characteristics of metal or thermoplastics aren’t always suitable for every application. Get the best of both worlds with insert molding from Weiss-Aug.

What is Insert Molding?

Insert molding is a process where plastic is molded or formed around other components. Typically, the inserted component is placed into a mold with an opening and plastic resin enters through the opening and encapsulates the inserted piece wholly or in designated areas of the mold cavities.

horizontal injection molding machines weiss-aug surgical products

Why Combine Metal and Plastics?

Metallic parts encapsulated by plastic can provide a wide range of benefits to a process or application, such as improving reliability, impact resistance, and weight. Most plastics withstand exposure to moisture, chemicals, and ultraviolet light, meaning they can better protect metal from the elements.

Another benefit is increased part compatibility. Some metals just don’t work well together, and direct contact may cause issues like corrosion or degradation. With insert molding, plastic covers mating part surfaces.

Automotive insert molding component

Your Insert Molding Partner

Weiss-Aug is an ISO 9001:2015-, 13485:2016-, 14001:2015-certified manufacturer of insert-molded parts and assemblies for demanding applications. Regardless of design complexity, we can turn around products that fit, form, and function as intended on time and within budget.

Our insert molding capabilities include the following:

  • Horizontal and vertical molding
  • Arburg, Nissei and Toshiba presses from miniature to 275 tons
  • Engineered thermoplastic resins: PPA, PPT, LCP, PPS, PBT
  • Scientific Molding Principals for process validation
  • RJG Edart System for process management and viscosity control
vertical molding machine, molds

The Weiss-Aug Way

Our build-to-print services are ideal if you have a thoroughly vetted design. With print, specifications, and a purchase order requirement in hand, we’ll take it from there.

If you have a project that still needs refinement, don't worry. We're here to assist you in achieving a simpler, more manufacturable design for your goals. Our build-to-spec services can turn your concept into finished products quickly and affordably. At our company, we believe in customization to meet your specific needs. We only create prototypes when necessary for testing and proof of concept. Our focus is always on tailoring your project to your unique requirements.

Materials we Use

When it comes to thermoplastics and metals, the one certainty is innovation. Our team can produce insert-molded parts from many engineering materials including:

  • Polyphthalamide, Or PPA
  • Liquid Crystal Polymer, Or LCP
  • Polyphenylene Sulfide, Or PPS
  • Polybutylene Terephthalate, Or PBT
  • Polypropylene Terephthalate, Or PPT

Let us know if your insert-molded part needs to be manufactured using another thermoplastic or metal type.

polymer, plastic, black, pellets

Why Choose Weiss-Aug?

When manufacturing components for critical applications, turning around quality products quickly is paramount. Weiss-Aug’s insert-molded part or assembly manufacturing services can help you achieve your production goals.

  • Faster assembly times
  • Reduced part size
  • Lower component weight
  • A simpler, more manufacturable design for complex parts-high-volume orders are possible
  • Cost-effective production process

Comprehensive Manufacturing Services

When manufacturing components for critical applications, turning around quality products quickly is paramount. Weiss-Aug’s insert-molded part or assembly manufacturing services can help you achieve your production goals.

  • Product Development
  • Prototyping
  • Tool and Die
  • Precision Metal Stamping
  • Machined Parts Process Conversion
  • Insert Molding
  • Reel-to-reel Molding
  • Assembly
  • Automation & Robotics
  • Laser Processing
  • Welding
  • Manufacturing Services
  • Specialty Services

Improve Product Performance Today

Weiss-Aug values client satisfaction above all else. This dedication to quality has enabled us to become the trusted insert-molding provider to clients in many industries.

Please reach out to us about insert molding capabilities. Our team is happy to discuss your project in greater detail.

Industries Served

How can we help?

Request a Quote (Capabilities)

How can we help?

Request a Quote (Capabilities)

“Today through use of innovative lean manufacturing techniques, expansive engineered processes and a strict adherence to the highest quality and safety standards, our stamping plant has successfully produced recent multi-year PPM ratings of less than one. Our stamping philosophies have also earned us high supplier ratings with both automotive and medical customers and continuous positive auditing scores from yearly ISO 9001:2015, ISO 13485:2016, ISO 14001:2015 audits and IATF 16949:2016.”

— Dieter Weissenrieder, CEO and Founder