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Logo for Lewis Plastics featuring a stylized LP monogram on the left and the text Lewis Plastics in bold blue and purple letters on the right, reflecting their expertise in plastic manufacturing.

Quality Assurance in Plastic Injection Molding

Lewis Plastics delivers dependable quality backed by ISO 9001:2015 certification and precise inspection methods. Our quality assurance process supports every stage of custom plastic injection molding, ensuring accuracy, consistency, and reliability.

Nine tall, yellow, rectangular blades are arranged vertically in a row on a metal surface in an industrial workshop, showcasing equipment and machinery used in plastic manufacturing and insert molding processes.

Certified Plastic Injection Molding Manufacturer

As an ISO 9001:2015 certified plastic injection molding manufacturer, Lewis Plastics follows structured quality standards to verify part performance before, during, and after production. Preventive quality measures are built into every process to minimize variation and maintain repeatability.

Advanced Quality Control Capabilities

A climate-controlled inspection laboratory supports precision measurement and testing for injection molding services. Equipment and capabilities include:

  • Coordinate Measuring Machine (CMM) and Video Measuring Machine (VMM)
  • Optical comparator and non-contact systems
  • Moisture analyzer to validate proper material conditioning
  • Full dimensional layout for ISIR, PPAP, and FAI requirements
Four people sit at a conference table in a modern office, discussing 3D models of a plastic part displayed on dual monitors. One person holds a prototype while others take notes and reference laptops or screens, focusing on injection molding techniques.

Process Control and Statistical Analysis

Statistical Process Control (SPC) and real-time data collection help maintain consistency throughout production. Capability studies, Gage Repeatability and Reproducibility (Gage R&R), and detailed reporting provide confidence in the precision of each molded part.

Quality Planning for Injection Molding Manufacturing

Lewis Plastics applies the Advanced Product Quality Planning (APQP) method to align customer expectations with manufacturing outcomes. This structured framework supports consistent communication, clear documentation, and predictable quality results for every injection molding project.

A woman in glasses uses a vertical measuring device on a countertop in an office. A graduated cylinder, documents, and a plastic part related to insert molding for plastic manufacturing are also on the counter as she reads data from the device’s screen.

Quality Built into Every Process

Lewis Plastics combines certified systems, modern technology, and experienced technicians to deliver dependable quality for custom injection molding programs.

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