More than 50 years experience

Serving our Fortune 100 and smaller companies with vacuum and pressure formed parts

Shamrock Plastics Inc

Proudly serving our customers since 1968

Quality is our culture

Culmination of the best strategies learned over the years.

Our Main Processes

What We Do For You

Vacuum Forming

Pressure Forming

Secondary Operations

We are Professional

We are proud of the service we offer at Shamrock Plastics where you will work with a professional and experienced team to develop a plan, which considers each facet of your product’s specifications.

Quality Certified Company

The processes currently in place are a culmination of the best strategies learned over the years from our Caterpillar Certifications, our ISO 9001 Certification and Statistical Process Control (SPC) techniques.

Highly Rated Company

We measure our service in two ways: one – our on time delivery performance, which is consistently in the 98% range; and two – what our customers say about us.

Proven Quality Track Record

Our Products

What We Offer You

Custom Parts

Holiday Lamplighters

Customer Testimonials

What Customers Say

Supplier Development Engineer

Shamrock Plastics has been a certified supplier for many years. In that period of time, they have always maintained excellent delivery performance, superior quality and worked tirelessly to maintain competitive prices.

World's Largest Maker of Tract Type Tractors

Performance Pattern and Machine

We have partnered with Shamrock Plastics for many years and found that they continually search for new materials, technologies or methods that speed up production or take cost out of the tooling.

Scott & Tom Herman

Co-Owners

Tis Your Season

Shamrock Plastics is a valued partner of Tis Your Season Inc. Their products are top tier and a perfect fit for our holiday catalog. The outstanding customer service makes buying and receiving seamless, which allows us to spend less time on the little things and more time focusing on growing our business.

Mark Demsko

Tis Your Season Inc.

Onken Inc.

Shamrock’s unparalled customer service and commitment to quality have made a trusted partner of Onken’s for over 30 years.

JR Onken

Owner

About Our Company

Know Who We Are

Leading company in this field, we provide specific solutions for all customers.

Shamrock Plastics was founded in 1968 for the purpose of supplying custom vacuum formed parts to the local market. Since that time Shamrock Plastics has expanded and grown, to include pressure forming (an economical alternative to injection molding).

Shamrock has been providing quality service to our valued customers for more than 50 years.

Shamrock Plastics Inc.
P.O. Box 3530
Peoria, IL 61612-3530
Phone: 309.243.7723
Fax: 309.243.5852
Email: corporate@shamrockplastics.net