Custom Plastic Injection Molding in Southern California
88,000 sq. ft.
MANUFACTURING FACILITY
IN SOUTHERN CALIFORNIA
25 Presses
LARGE TONNAGE CAPACITY
30 TONS - 2800 TONS
24/7
OPERATION
CONTINUOUS PRODUCTION
ABOUT NORCO PLASTICS
Precision Manufacturing Since 1974
Founded in 1974, Norco Plastics is a leading plastic injection molding manufacturer serving Los Angeles, Riverside, Orange County, and throughout Southern California. Operating from our 88,000 sq. ft. facility in Chino, we offer precision custom molding with large tonnage capacity up to 2800 tons. Our state-of-the-art equipment, robotics, and 24/7 operation ensure efficient, high-quality production for any project size.
Large Tonnage Injection Molding Equipment
Our Southern California facility houses 25 precision injection molding machines ranging from 30 to 2800 ton of clamping force, with shot capacity up to 1000 oz. This versatile equipment lineup enables us to handle projects of any size with exceptional precision and 24/7 continuous production capabilities.
Custom Plastic Injection Molding
Custom Plastic Injection Molding
Precision Solutions for Diverse Applications
Construction & Infrastructure
Our high-performance injection molded components for the construction industry include weather-resistant barriers, specialized fittings, and structural supports ranging from 30-2800 tons capacity. Our products include pond supply components, waterfalls, skimmer filters, and ensure reliable performance in demanding environments throughout Southern California and beyond.
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Storage & Logistics Solutions
We manufacture high-impact storage totes, bins, and customized container systems engineered for modern logistics and supply chain operations. Our precision-molded products feature reinforced corners, precise dimensions, and stackable designs that optimize warehouse space, improve inventory management, and withstand the rigors of distribution centers across California.
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Housewares & Consumer Products
Our consumer product solutions include food-grade plastic housewares, baby products, and pet supplies manufactured with BPA-free materials that meet strict safety standards. From eye-catching retail packaging to premium household items with exceptional durability and heat resistance, we deliver injection molded components that enhance brand recognition and customer satisfaction.
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Irrigation & Agricultural Components
Our custom irrigation solutions feature UV-stabilized materials designed to withstand harsh outdoor conditions while maximizing water efficiency. We produce durable components for farm equipment, precision irrigation systems, and livestock management that help Southern California agricultural businesses operate more efficiently even in demanding environments and extreme temperatures.
Explore Agricultural SolutionsPrecision Quality Control
Our Southern California facility features advanced quality control technology including the Brown and Sharpe PFX 454 MicroExcel CMM (Coordinate Measuring Machine) for precise dimensional verification. We implement Statistical Process Control (SPC) monitoring throughout production and conduct comprehensive testing to ensure every component meets exact specifications. From incoming materials to final inspection, our quality assurance processes deliver consistent, high-performance plastic parts that exceed industry standards.
50 Years of Manufacturing Excellence in Southern California
As a family-owned injection molding company, we specialize in turn-key manufacturing that offers seamless solutions from concept to completion. With half a century of expertise and large tonnage capabilities up to 2800 tons, we deliver precision custom components for industries across Los Angeles, Riverside, and Orange County. Partner with Norco Plastics for reliable service built on a legacy of quality, experience, and 24/7 production capabilities.
Get a Custom Manufacturing QuoteNeed Precision Plastic Manufacturing in Los Angeles, Riverside & Orange County?
Contact Norco Plastics for expert solutions, large tonnage capabilities up to 2800 tons, and 24/7 production services. Get a custom quote today or call for immediate assistance.
(909) 393-4000 
