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Custom Plastic Manufacturing Solutions

Engineering Industries (EI) delivers custom plastic injection molding and insert molding solutions for complex components. Each project benefits from automation, advanced press technology, and a customer-first approach grounded in engineering support and quality control.

Engineered for Efficiency and Repeatability

Every molding cell at EI is set up to support consistent production and efficient flow. Electric and hydraulic molding machines in the 40 to 250 ton range are well suited for detailed parts and short to medium volume projects. Robotics, real-time monitoring, and standardized processes help maintain cycle stability and reduce variation across production runs.

When practical, value-added operations such as pad printing, ultrasonic welding, and assembly are performed at the molding cell as parts move through production. Keeping these steps close to molding helps reduce handling, improve throughput, and deliver more complete parts with the repeatability customers expect.

Custom Insert Molding

Plastic insert molding combines precision molding with mechanical strength. We mold thermoplastic material around metal inserts, terminals, and fasteners to create integrated assemblies that hold tight tolerances and eliminate secondary fastening.

Customers rely on EI for insert molding manufacturing that improves product performance and streamlines production. Advantages include reduced assembly time, stronger bonding between materials, and consistent alignment within multi-part assemblies.

Value-Added Operations

Value-added operations at EI are built into production cells to keep parts moving efficiently from molding through finishing, joining, verification, and pack-out. Automation supports repeatability at each stage, reducing extra handling and helping maintain consistent quality throughout the project.

Capabilities include:

  • Pad printing
  • Heat transfer decoration
  • Ultrasonic welding
  • Heat-staking
  • Functional testing
  • Assembly and subassembly
  • Kitting

Keeping these operations connected to the molding environment helps shorten lead times, simplify the supply chain, and deliver parts that arrive ready for the next step. Each operation is managed within EI’s ISO 9001-certified quality system for traceability, consistency, and documented control.