Modern Alpha Plastics Inc

About Modern Alpha Plastics Inc

The company was formed in 1996 when Modern Plastics Molding (founded 1965 in Independence, Missouri) and Alpha Plastics (a Kansas City molder founded in the early 1960s) merged, combining sixty years of precision injection molding experience. Today the business is led by Anthony C. Gross, President and Chief Engineer, who oversees quoting and mold approvals directly. The shop runs twenty-one injection molding presses ranging from 50 to 1,550 tons of clamp force, with shot capacities of 2 to 75 ounces and part weights from 5 grams to 10 pounds. Production volumes span 250 to over five million parts annually. In-house capabilities cover mold design, build, qualification, repair, and maintenance through vetted tooling partners, plus secondary operations including ultrasonic welding, CNC machining, sub-assembly, custom packaging, heat sealing, and pad printing. The company processes nine engineering-grade resin families along with commodity, glass-filled, mineral-filled, and impact-modified materials. Modern Alpha serves aerospace and defense (ITAR-registered), medical device, drone and UAS, consumer, and industrial markets. Specific programs include structural drone brackets, legacy OEM re-engineering, metals-to-plastics conversions, thin-wall food-grade containers, and large industrial housings. Customers range from OEMs requiring close-tolerance components to firms needing turnkey design-to-distribution support. The company emphasizes engineer-led, single-source responsibility — design, tooling, molding, assembly, and shipping under one purchase order. Statistical Process Control and Statistical Quality Control run on every press every shift, with material inspection at receiving, in-process evaluation, pre-shipping sign-off, and retained samples archived indefinitely. Long-tenured operators, some with thirty-year careers, provide tribal knowledge that the firm cites as a deliberate competitive advantage.

Equipment

• 21 injection molding presses (50–1,550 ton clamp force)
• Robotic part handling
• Computer-controlled process monitoring (SPC/SQC)
• Ultrasonic welding equipment
• CNC machining equipment
• Pad printing equipment
• Heat sealing equipment

Company details

Location

Randolph, Missouri

Company type

Manufacturer

Founded

1996

Export compliance

ITAR registered

Production volume

250 — 5,000,000+ parts annually

Certifications

ITAR Registered, ISO 9001:2015 aligned, AS 9100 awareness, ISO 13485 awareness

Listed under

• Injection Molding in Missouri
• Plastics & Packaging Manufacturers in Missouri

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