Legacy Molding

About Legacy Molding

Legacy Molding is a custom plastic injection molding company based in Phoenix, Arizona. The business was established to serve the rapidly expanding manufacturing base in the Southwest, offering a domestic alternative for OEMs that need engineering-grade resins, multi-cavity capacity, and documented quality without the lead times and tariff exposure of overseas sourcing. The company is owner-operated, with the same engineers who quote a job also overseeing its production. It works with over 50 engineering resins — including ABS, polycarbonate, PC/ABS, nylon, glass-filled nylon, polypropylene, HDPE, TPE/TPU, acetal, PEEK, Ultem, and flame-rated or ESD grades. In-house capabilities cover mold design and DFM review, prototype aluminum tooling in 5–10 days, production steel tooling in 6–12 weeks, scientific molding with locked process sheets, in-process inspection, first-article reports, material certifications, lot traceability, ultrasonic welding, heat staking, insert installation, assembly, kitting, and packaging. Legacy Molding serves aerospace and defense, medical devices, electronics and semiconductor, automotive and EV, and industrial OEMs. Representative programs include ESD-safe housings and brackets for semiconductor equipment (250,000 parts annually), flame-rated polycarbonate enclosures with brass inserts and overmolded gaskets for defense electronics (40,000 parts annually), and two-shot ABS/TPE grips for consumer products (1.2 million parts annually). The company emphasizes engineering before steel, providing a DFM review on every part before tooling is cut. Production stays in Phoenix, enabling scheduled releases, in-process inspection, and a domestic supply chain that avoids tariffs and cuts lead times to two to six weeks versus eight to sixteen weeks offshore. Customers retain ownership of their tooling, which Legacy designs, manages through vetted partners, and maintains locally for the life of the program.

Equipment

• Injection molding presses (under 200 tons)
• Material drying and conveying systems
• Ultrasonic welding equipment
• Heat staking equipment
• Insert installation equipment
• Dimensional inspection bench (calipers, height gauge, surface plate)
• Tool storage and preventive maintenance area

Company details

Location

Phoenix, Arizona

Company type

Contract manufacturer / job shop

Production volume

100,000 to 10 million+ parts per year

Lead time

Production lead times 2–6 weeks; prototype tooling 5–10 business days, production tooling 6–12 weeks

Listed under

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

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