Who We Are

Our building is 30,000 square feet with 20,000 square feet of manufacturing floor space. We are located in Mequon, Wisconsin just 15 minutes north of Milwaukee. Hours of operation: 24 hours/5 days.

How It All Started

Ci-Dell Plastics is a custom mold shop that was founded in 1986 by Ken Cihlar and Dan Trudell. Ken's engineering degree combined with Dan's years of experience in the plastics industry provided an excellent opportunity for them to begin their own business venture.

The first shop was located in Menomonee Falls molding carbon graphite parts for pumps. Hard work and dedication lead to prosperity and continued growth. In 1999 they built a new shop in the Mequon business park where they now own and operate over 20 compression and injection presses. Because of continued growth and customer demand, this facility now operates 24 hours a day, five days a week.

We Want to Do Business With You

Why We Want to Do Business with You

Business outcomes are always more successful when companies work as partners. We always look for customers like you - organizations that place a value on quality, accuracy, and timeliness. As you well know, shared values make for great partnerships!

Our promise to you is to not only meet, but exceed your expectations whenever possible. Because we know it’s both appreciated and important. Making your life easier by doing a good job and working with a sense-of-urgency is what we’ve been doing for nearly 40 years.

Thank you in advance for letting us serve you.

Ken Cihlar

Ken Cihlar, President and Owner

Perfect Parts Begin Here

Perfect Parts Begin Here

Our legendary experience in thermoset molding combined with proven processes results in extremely consistent part quality

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Incoming Inspection

Ci-Dell Plastics inspects, measures and documents all incoming materials prior to molding them in production. This procedure ensures only quality materials are used to mold your parts.

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Part Qualification

First piece measurement and documentation is critical to our success. Part qualification begins with a layout of an acceptable sample from each cavity. We use our Hexagon CMM with touch probe to conduct full layouts to ensure your parts meet the required dimensions. Samples are sent for customer review and approval prior to starting production on the mold. This procedure also applies to mold modifications and refurbishment of existing tooling.

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Quality in Production

Once parts are approved and production begins, critical dimensions are measured and documented throughout the production process to ensure parts are molded to specification.


We can maintain traceability for every lot of raw material, inserts and other sub-components throughout the production run. This added procedure allows us to sort and separate product if there is any question regarding quality.

To ensure your parts will be perfect, we run all tooling through our rigorous 9-point tool evaluation checklist and provide you with the results before we start making your parts. See our 9-Point Tool Evaluation Checklist here.

Meet the Team

Ken CihlarSR Owner Engineer

Ken Cihlar Sr.
Owner / Engineer

Ken Cihlar Sr. is the owner of Ci-Dell Plastics Incorporated. He started the company with his partner Dan Trudell in 1986. Ken graduated UW Platteville with a BS degree in Industrial Technology and started his career with Rockwell Automation. Ken’s goal of building a successful business has been achieved. He now looks forward to making projects in his workshop at home and spending time with his grandchildren.

Ken CihlarJR Manufacturing Manager

Ken Cihlar Jr.
Manufacturing Manager

Ken Cihlar Jr. is the eldest son of Ken Cihlar Sr. and is now the Manufacturing Manager of Ci-Dell Plastics Incorporated. He has been coming to work with his father since he was a young boy and knows the business inside and out. Ken has a degree in Electrical Engineering Technology from MATC and aspires to grow the business his father started. Outside of work, Ken has a wife and two boys and that keeps him plenty busy.

Nolan Cihlar IT Specialist Supervisor

Nolan Cihlar
IT Specialist / Supervisor

Nolan Cihlar is the second son of Ken Cihlar Sr. and is a very valued member of the company. Nolan attended PC PRO School studying Information Technology and is Comp Tia ++ certified. He started working for Ci-Dell Plastics in 2011. He supervises many associates at Ci-Dell and manages the IT department. When not at work, you can find Nolan at the gym working out or at home with his wife and son.

Jeff Geidel

Jeff Geidel
Tool Room Manager

Jeff Geidel is the Tool Room Manager for Ci-Dell Plastics Inc. Jeff has held Management and Engineering positions at various companies until joining the Ci-Dell team in July of 2022. Jeff oversees the tool room and assists clients with design and manages the building of new tools. In his spare time Jeff will be outside enjoying many of the outdoor activities available in the area.

Sarah Wallner Account Manager

Sarah Wallner
Account Manager

Sarah Wallner is the Account Manager for Ci-Dell Plastics Incorporated. She has made her career in plastics manufacturing specializing in Thermoset Composites. Sarah has a degree in Business Management from MATC and started with Ci-Dell in 2008. Sarah works closely with clients to ensure their satisfaction, resolve issues and answer questions. In the off hours Sarah likes to ride her horses and spend time at the cabin with her family in northern Wisconsin.

Laurie Rabuck
Purchasing / Production Planner

Laurie Rabuck is the production planner and purchasing manager at Ci-Dell Plastics Incorporated. Laurie comes to Ci-Dell Plastics with a degree in Materials Management from MATC. Laurie is Ci-Dell’s ERP expert and is credited for implementation and startup of the system. Laurie works closely with our clients to fulfill their orders in a timely manner. In her time away from work Laurie enjoys gardening and spending time with her family and grandchildren.

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Deborah Diener
Quality Manager

Deborah (Deb) Diener has successfully held roles as: Quality Manager, Quality System Engineer, Continuous Improvement Specialist, Certified Lead Auditor to: ISO9001:2015, AIAG IATF 16949:2016 & AS9100 and Quality Coordinator, who works with manufacturers and companies to audit, drive, and manage Quality Management Systems (QMS) that ensure compliance with ISO 9001:2015, AS 9100, and IATF 16949:2016 standards in order to exceed customer expectations and propel profits.

Deborah also has a Bachelor’s of Science Degree from Marion University with a Major in Quality, Productivity and Management and a Minor in Operations Management.

You Have Questions… We Have Answers