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Durable, Cost-Effective Insert Molding Services

Norck: Your Partner for Precision Insert Molding Solutions

Norck delivers expert insert molding services, empowering manufacturers across aerospace, automotive, medical, electronics, and other demanding sectors to create complex, multi-functional plastic components.

Capabilities for Insert Molding Excellence:

  • Precision Injection Molding Machines: Accurate insert placement, tight control over process parameters, and consistent overmolding for high-quality, integrated parts.
  • Robust Mold Design & Tooling: Molds engineered to accommodate complex insert geometries, ensuring secure positioning during the molding process.
  • Material Expertise: Guidance on plastic selection for compatibility with insert materials, ensuring strong bonds and optimal performance across industries.
  • Insert Pre-Treatment & Handling: Cleaning, surface preparation, and automated handling systems for reliable insert integration and streamlined production.
  • Value-Added Assembly: Post-molding assembly services to deliver complete, ready-to-use components, reducing your supply chain complexity.

Norck's Engineering Edge: It's About Integration, Not Just Encapsulation

  • Design for Manufacturability (DFM): Collaboration to optimize part and insert designs for efficient molding, minimizing cost and ensuring robust outcomes.
  • Process Simulation & Analysis: Predicting material flow around inserts, optimizing bonding, and preventing potential defects for critical applications.
  • Process Optimization & Automation: Fine-tuning molding parameters and insert handling for maximum quality, efficiency, and repeatability across production runs.
  • Quality & Performance Focus: Rigorous inspection, bond strength testing, and functional validation ensure your insert molded parts meet their intended purpose.

Why Choose Norck for Insert Molding?

  • Combine Functionalities, Reduce Assembly: Create parts with integrated electronics, sensors, metal elements, and more for improved reliability and simplified production.
  • Precision for Demanding Industries: Tight tolerances on insert placement and overmolded features, ensuring reliable performance in harsh environments.
  • Problem-Solvers for Complex Projects: Our engineers work with you to optimize designs, material pairings, and processes for successful insert molding.
  • Streamlined Solutions: From mold design and insert pre-treatment to final assembly, we offer a comprehensive approach under one roof.
  • Performance & Reliability: Insert molded parts engineered for strength, durability, and longevity in their intended applications.

What is Insert molding?

It is a plastic injection molding process that combines plastic and other material. The insert, the inner part of an over-molded component, is inserted into the mold before injecting the plastic material. The mold is made from hardened steel to withstand the pressure and heat of the insert molding process. The Insert molding process is used for high and medium-volume production due to the high cost of mold fabrication.

Insert molding is used to add the insert, such as:

   • A threaded insert, a metallic part similar to a nut to add a rigid thread to a plastic part
    Electrical pins and connectors
   • Screws
   • Keys
   • Gears

What are the advantages of Insert molding?

Insert molding offers many advantages:

• A rigid connection: The injected plastic englobes the insert, which results in a rigid connection between materials.
• Accuracy: Insert molding offers tight tolerances, around ±0.05mm.
• More rigid threads: The inserts are added to a plastic part to avoid wearing of threads in plastic material.
• Diversity of materials and colors: Many materials can be used to make Insert molding and a large selection of colors.
• No finishing is required: There is no need for post-molding operations as the molded parts come off the mold and can have a mirror glass surface, mat color, or texture.
• Low production costs: The production cost is reduced since post-machining operations are reduced or eliminated.

But there are some disadvantages as well:

   - Complex tooling design
   - Long cycle time

How is it fabricated?

Insert molding is made through four steps:

1. Plastification and adding inserts: The plastic granules are transferred from the hopper to the mold using a rotating screw and molted using heaters. Inserts are added before the injection manually for low to medium-volume production or automatically for high-volume production.

2. Injection: The screw will advance to increase pressure in the injection chamber to inject the molted plastic into the mold. The two cavities are maintained close until the plastic solidifies

3. Cooling: After injection, the molted plastic will be cooled down to become solid using a cooling circuit. The screw will hold its position to hold the pressure inside the mold.

4. Ejection: After the molted plastic solidifies using a cooling circuit, the Die is opened, and the part is ejected via ejector pins. The screws will retreat to prepare for the next injection.

Insert Molding

Obtaining a fully functional part might require extra processing for features that can’t be made with the Injection molding process, such as taping. The designed part should follow Injection molding design guidelines.

Norck: Your Data-Driven Partner for On-Demand Manufacturing Excellence

Norck is a technology-powered manufacturing leader specializing in CNC machining, 3D printing, sheet metal fabrication, and injection molding. Our intelligent, data-driven approach ensures exceptional quality, optimized costs, and seamless supply chain management for companies worldwide.

Key Services:

Why Choose Norck?

  • AI-Powered Manufacturing: Data and AI optimize our processes for superior quality, minimized costs, and supply chain visibility
  • Vast Production Capacity: Our extensive partner network in Europe and the US guarantees both low and high-volume production.
  • End-to-End Expertise: Our team of engineers, data scientists, and product developers ensure design for manufacturability and unparalleled service
  • Single-Source Solution: Norck streamlines your supply chain, reduces overhead, enhances purchasing power, and delivers just-in-time results.

Experience the Norck difference. Get a quote fast for your manufacturing needs today!




Access to Huge Production Capacity - Norck

Get Access to Huge Production Capacity

Besides Norck's own production capacity, Norck has access to hundreds of top quality CNC machining, sheet metal, 3D printing, injection molding, and urethane casting providers across the United States, Germany, and Europe.

 Creating Supply Chain

Creating Supply Chain Resilience

Working with Norck effectively reduces your risks against supply chain shocks, unforeseen delays, price fluctuations, and quality issues, thus increasing your company’s resilience in its outsourcing and supply chain.

Innovation at Work - Norck

Innovation at Work

Besides being an artificial intelligence augmented digital manufacturing company, we also develop extremely innovative manufacturing tools, fixtures and of course software applications such as RapidCAD, a highly intuitive and innovative web based CAD application.

Art artificial intelligent system

Artificial Intelligence Augmented

Norck gathers and uses thousands of data points to augment its engineers with a state of the art artificial intelligent system for better design and manufacturability.

Green Driven - Norck

Green Driven

Norck encourages its partners to be carbon-neutral, and gives carbon neutral compliant suppliers priority over non-compliants.