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Custom Plastic Injection Molding Since 1969

Lewis Plastics delivers custom plastic injection molding and insert molding solutions backed by responsive service, dependable quality, and on-time delivery. For more than five decades, our team has helped customers transform complex ideas into durable, production-ready plastic components.  

Two colleagues looking at a mold.

A Partner in Injection Molding

As an experienced injection molding company, Lewis Plastics has built lasting partnerships for more than 50 years by focusing on what matters most: quality parts, dependable delivery, and open communication. With more than 30 plastic injection molding machines ranging from 55 to 1,574 tons, we manage projects of every size and complexity. Our process expertise covers both injection molding and plastic insert molding, helping customers improve part performance and reduce production time.

Machines on the Lewis Plastics manufacturing floor.

Capabilities Designed for Flexibility

From short-run injection molding and prototyping to high-volume production, Lewis Plastics provides custom injection molding services tailored to customer needs. Our advanced equipment includes Arburg machinery for injection molding, along with a new 3D printer that accelerates design validation and small-batch production. Beyond molding, we offer engineering support, secondary operations, warehousing, and packaging efficiencies powered by our in-house box maker. 

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Plastic Injection Molding for Key Industries 

Lewis Plastics supplies components across a wide range of industries, including agriculture, medical, electronics, food service, transportation, and industrial markets.

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Why Lewis Plastics?

Responsive communication at every step of the project
Flexible plastic injection molding manufacturing options, from small batches to full-scale runs
Cost-saving investments including an in-house box maker for shipping efficiency 
Certified quality with ISO 9001:2015 standards and a climate-controlled lab 
Central U.S. location in Addison, IL for reliable nationwide and global delivery 

Looking Ahead

When your project demands reliability, choose a partner with the equipment, experience, and commitment to deliver. 

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