Custom Plastic Injection Molding

FAMILY OWNED & OPERATED SINCE 1953 | 99% ON-TIME DELIVERY | 3 BILLION PARTS SHIPPED ANNUALLY

HOW CAN WE HELP?

Hoffer Plastics Named IndustryWeek 2024 Best Plant

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LOK Family

Trust-T-Lok^TM and Drop-Lok^TMpatented closures for flexible pouches and rigid containers. Strong seal integrity, tamper evident, in a range of styles or configurations for food, personal care and many more applications.

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Custom Products

From simple parts to the most highly complex multi cavity designs, we partner with you from design to prototyping through production and rollout. If you can conceive it, we can mold and deliver it.

Packaging
Medical
Consumer Industrial
Automotive
Appliance

Where can you find our parts? Squeezable baby food pouches, lawnmower carburetors, car doors, audio speakers, blender jars, dishwashers, and restaurant beverage dispensers . . . just to name a few.

We go ALL IN to help you WIN

112 PRESSES | 300+ EMPLOYEES | MADE IN AMERICA

A Focus on Sustainability

Proud recipients of the 2016 Illinois Governor's Sustainability Award. Longstanding executive members of the Plastics Environmental Council. Pioneers in onsite power co-generation and the pursuit of biodegradable resins. Sustainability has been central to our company's values and priorities since our inception.

Testimonials

Hoffer is a much appreciated partner, that understands how they can help us
prosper in a competitive market. The product quality consistently meets our high standards, topped off by an outstanding service from a flexible and most efficient organization.
Thank you Hoffer Plastics!

Marc Latreille

Sales & Marketing Director | Vergers Leahy Inc. – Leahy Orchards Inc.

Hoffer plastics is a true expert partner to us, which has allowed Yumbutter and Tribe 9 to continue being a leader in pouch innovation across the nut butter industry and beyond.

They are a delight to do business with and highly recommend them to anyone looking seeking out the best injection molders in the market.

Matt D’Amour

Chief Wellness Carrier | Yumbutter and Tribe 9 Foods

Hoffer has been a valued partner to our company for many years. Hoffer goes well beyond just selling “plastic parts”. Their customer service and technical support is unmatched and their products are consistently high quality. Looking forward to a continuing partnership for years to come. Thank you Hoffer Plastics!

John Knapp

Executive Vice President - Marketing

The Hoffer Foundation

Giving back to the community and people who've supported us is an honor, a joy and a responsibility. The Hoffer Foundation enables programs such as the United Way, Boys and Girls Clubs, local food bank, library, literacy and job training programs, and many others.

Recent Posts

Our Latest Posts on Technology, Leadership, Innovation, and Sustainability

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Oct 16

Micromolding is Reshaping the Future of MedTech

Medical Product Outsourcing sat down with Hoffer Plastics director of engineering Brian Beringer and other micromolding experts to explore how the company is helping redefine what's possible in medical manufacturing through advanced micromolding innovation. By combining decades of molding expertise with cutting-edge engineering, Hoffer Plastics delivers greater precision, reliability and functionality in smaller components. From optimized material selection and early design for manufacturability (DFM) collaboration to advanced tooling, Hoffer's approach ensures that even the most...

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Oct 03

Three Pillars of a Successful Mold Transfer

A mold transfer is more than moving steel. It's a strategic decision built on trust and risk management that protects product quality, supply chain stability and brand reputation. Beyond the tool itself, you're relying on a supplier to deliver consistent quality, meet deadlines and safeguard your business from costly risks. Done right, a tooling program transfer not only lowers costs but also enhances performance, improves consistency and strengthens your competitive edge. Companies rarely decide to...

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Sep 23

Hoffer Plastics Debuts Expanded Lok Line at PACK EXPO Booth N-5138

Flexible and rigid solutions deliver more choices, more value and more impact. SOUTH ELGIN, Ill. (September 23, 2025) - Hoffer Plastics announced today the expanded Lok family of closures, debuting at PACK EXPO Las Vegas (Sept. 29-Oct. 1), Booth N-5138. Building on a legacy of customer-driven engineering, the new line extensions give brands greater versatility, speed and value across flexible and rigid formats - while enhancing performance, reliability and shelf appeal. Product highlights Hoffer's Trust-T-Lok™...

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