
Custom Plastic Injection Molding Services in Southern California




Comprehensive Secondary Operations
Enhance your plastic injection molding project with our complete range of value-added services. Our Southern California facility offers end-to-end manufacturing solutions that streamline your production process and improve efficiency.
TURNKEY MANUFACTURING SERVICES
Comprehensive Manufacturing Solutions
Our value-added services extend beyond basic injection molding to provide complete manufacturing solutions with precision assembly, quality control, supply chain management, and tooling maintenance.
Assembly & Secondary Operations
Our expert assembly team integrates multiple components into finished products with exceptional accuracy, reducing production time by up to 30% while ensuring consistent quality.
- Precision multi-component assembly
- Hot stamping & decorative finishing
- Consistent quality across high volumes
- Integrated manufacturing workflow

Quality Control & SPC
Our comprehensive quality control systems ensure precision and consistency across production runs, with measurement capability to ±0.0001" when required.
- Advanced measurement technology
- Statistical Process Control (SPC)
- ISO 9001:2015 compliant systems
- Comprehensive inspection protocols

Tooling Maintenance Programs
We extend tool life and prevent costly downtime through strategic shot-count maintenance programs, with regular inspections, polishing, and preventative repairs.
- Systematic shot-count scheduling
- Preventative maintenance protocols
- Extended tool lifespan
- Reduced production downtime

Supply Chain Management
From raw material sourcing to final distribution, we optimize every link in your supply chain with just-in-time delivery systems and inventory management solutions.
- Just-in-time inventory management
- Southern California distribution network
- Vendor managed inventory (VMI)
- Streamlined logistics coordination

Southern California Plastic Injection Molding
At Norco Plastics, Inc., we're among the leading injection molding companies in Southern California offering large tonnage capacity from 30 to 2800 ton for precision plastic injection molding services.

Serving All of Southern California
We provide injection molding in Los Angeles, Orange, Riverside, San Bernardino, San Diego and across Southern California with 24/7 production capabilities. Our strategic location allows us to serve businesses throughout the region efficiently.

Manufacturing Capabilities
Our state-of-the-art facility offers large tonnage capacity from 30 to 2800 ton for precision molding with 24/7 production capabilities for consistent, on-time delivery.
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Premium Materials
We work with polyolefins, engineered plastics, calcium and foam-filled resins, glass-reinforced materials, and specialty compounds tailored to your specific requirements.

Quality Assurance
Our ISO 9001:2015 compliant quality systems ensure precision with measurement capability to ±0.0001" and comprehensive inspection protocols for consistent quality across production runs.
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Value-Added Services
Comprehensive solutions including assembly operations, tooling maintenance, supply chain management, and turnkey manufacturing to complement our injection molding capabilities.
View value-added servicesOur state-of-the-art plastics manufacturing California facility delivers tailored components that meet your exact specifications with 24/7 production capabilities.
For over 50 years, our plastic injection molding Southern California facility has delivered precision plastic molding California solutions with 30–2800 ton capacity throughout Los Angeles, Orange, Riverside, San Bernardino, and San Diego counties.
Our advanced technology and 24/7 manufacturing ensure plastics manufacturing California businesses receive high-quality production continuity and customer satisfaction.
Need Precision Plastic Manufacturing in Los Angeles, Riverside, San Diego & Orange County?
Looking for quality injection molding near me? Contact us about your next plastic manufacturing project. Our team specializes in custom plastic injection molding with large tonnage equipment up to 2800 ton and 24/7 production capabilities. We deliver high quality products backed by over 50 years of experience and comprehensive quality management systems. Let us put our expertise to work for your business needs.
