Multi-component injection molding

thermoplasticelastomeraesthetic parts

Overview Norck delivers on-demand injection molding services to manufacture precision plastic parts for sectors including aerospace, automotive, medical, electronics and industrial equipment. Services cover prototype runs, bridge tools and high-volume production with in-house tooling and process control.

Engineering Services & Value Early engineering collaboration to resolve molding challenges and optimize designs for manufacturability and repeatable production.

• Design for Manufacturability (DFM): Early input to optimize part geometry, wall thickness, ribs and draft for efficient molding.
• Moldflow analysis & simulation: Predict material flow, optimize gate location and cooling to reduce defects.
• Process optimization: Fine-tuning injection parameters and cycle timing to maximize yield and throughput.
• Rigorous quality assurance: Dimensional inspection, material testing and process control across production runs.

Capabilities

• Precision molding machines with tight process control for complex, high-tolerance parts.
• Material expertise across engineering thermoplastics, elastomers and thermosets.
• In-house tooling: mold design and manufacturing for prototypes and mass production.
• Advanced molding: overmolding, insert molding, thin-wall parts and intricate features.
• Post-molding services: finishing, assembly and secondary operations.

Why Norck

• Precision molding for demanding applications.
• Material selection and regulatory compliance expertise.
• Scalable support from prototype to production volumes.
• Full-service partner with in-house mold making and post-processing.

What is Injection Molding? Injection molding is a process where molten plastic is injected under pressure into a mold cavity (typically hardened steel) that defines the part geometry. It is suited to medium and high-volume production due to tooling investment.

Advantages

• Accuracy: Tight tolerances achievable (approx. ±0.05 mm depending on design and material).
• Complex shapes: Capable of producing complex geometries with close tolerances.
• Material and color diversity: Wide selection of engineering thermoplastics and color options.
• Rapid fabrication: Short cycle times once tooling is prepared.
• Minimal finishing: Parts can be molded with mirror, matte or textured surfaces, reducing post-processing.
• Cost efficiency: Economical for medium to high volumes due to low unit costs.

Limitations

• Higher upfront cost for tooling (mold fabrication).
• Lead time for mold development and initial setup.

How Injection Molding is Fabricated (Process Steps)

• 1. Plastification: Plastic granules are fed and melted by a rotating screw and heaters.
• 2. Injection: The screw advances to inject molten plastic into the mold cavity under pressure; cavities remain closed until solidification.
• 3. Cooling: The molten plastic cools via the mold’s cooling circuit while pack/hold pressure is maintained.
• 4. Ejection: Once solidified, the mold opens and ejector pins remove the part; the machine cycles for the next shot.

Quality & Standards
Norck is ISO 9001:2015 certified and applies data-driven and AI-augmented engineering methods to optimize manufacturability, quality and cost across the production lifecycle.

Characteristics / Technical specifications

• Typical achievable tolerances: around ±0.05 mm depending on geometry and material.
• Materials: engineering thermoplastics, elastomers and thermosets.
• Capabilities: overmolding, insert molding, thin-wall parts, intricate features.
• In-house tooling: prototype and production molds.
• Post-molding: finishing, assembly and secondary operations available.
• Quality system: ISO 9001:2015 certified.
• Industries served: aerospace, automotive, medical, electronics, consumer goods and industrial equipment.