414-351-1000 / Toll Free: 888-611-0270 sales@genplas.com

The Advantages of Thermoforming

The thermoforming process offers multiple benefits over other common approaches to component manufacturing.

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State-of-the-art Equipment

Single station and rotary forming, CNC & robotic trimming gives consistency and accuracy for an excellent fit and finish.

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Tooling Solutions

Durable and cost effective production tools for thermoforming. Simple, fast and economical.

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General Plastics

From Concept to Reality™ Your positive outcome is our singular goal.

For three decades, the General Plastics’ team has provided comprehensive assistance
for the Original Equipment (OEM) and Point of Purchase (POP) markets.
Utilizing innovative approaches to sheet plastic fabrication.

Thermoformed plastics are ideally suited for mass transit, consumer products, packaging, retail and display, sports and leisure, electronics, and industrial applications.

General Plastics utilizes innovative approaches to sheet plastic fabrication, such as: Thermoforming, Vacuum Forming, Pressure forming, Fabrication and Turnkey assembly.

General Plastics Thermoforming

Our clients have enjoyed a broad spectrum of successes with challenging quality, lead-time and cost-containment objectives. Whether your project involves a single part or multiple components we can offer insights to assist with a design from
Concept to Reality™

Additional Benefits:

  • concept realization
  • process design
  • tooling prototype and production
  • part production on state-of-the-art equipment
  • CNC and robotic routing
  • quality and process management
  • assembly and secondary operations
  • inventory control
  • turnkey solutions

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Excellent Price/Value Ratio


Due to our extensive investments in state of the art equipment, we are able provide parts at a competitive advantage. You benefit from our three decades of relationships forged with many of America’s most respected raw material suppliers.

Superior Project Management

We understand that your timetable, whether it be for critical time to market processes, prototyping or proof of concept work, is critical. Our coordination of all stages allows for expediently shifting your project from concept to reality within an accelerated time frame.

Award-Winning Quality


Throughout the entire manufacturing process, our dedicated, customer-driven team will monitor your parts to ensure compliance to the most complex, highly cosmetic and tight tolerance design specifications. Consistency on your repeat orders is then ensured through the utilization of our all-inclusive customized computer tracking system, resulting in nearly 0% external part reject rate.

Your Single Source Supplier


Strategically integrated value added operation including:

  • heat bending
  • hot stamping
  • solvent and adhesive welding
  • riveting
  • edge treating
  • painting
  • special design features (bosses, ribs, and special fastening devices)

These can significantly shorten your production lead times by eliminating the costly and time-consuming process of sourcing multiple suppliers.

Your Total Turnkey Resource

General Plastics is also prepared to assist you in the elimination of needless overhead expense by economically overseeing your project demands, such as light assembly, sub-assembly and custom packaging requirements.

Customized Shipment Solutions

JIT, Kanban, drop shipment, emergency order and other customized shipment requirements are fulfilled with an impressive 98%+ on-time delivery rate.
General Plastics Young Leaders in Training!

General Plastics Young Leaders in Training!

Aug 24, 2018 |

Last spring, General Plastics hosted a five-hour Leadership Workshop in its Training Center for 60 Brown Deer High School students.  The students were members of DECA (previously known as Delta Epsilon Chi and Distributive Education Clubs of America) and other student...

General Plastics Expands Office, Training Spaces

General Plastics Expands Office, Training Spaces

Jun 6, 2018 |

By BILL BREGAR   A major plant expansion has freed up space for additional offices and a training area at General Plastics Inc. in Milwaukee, and it's right on time, since the Milwaukee industrial thermoformer is adding people to key new positions. Plant Manager...

Injection Molding vs Thermoforming

Injection Molding vs Thermoforming

Apr 26, 2018 |

General Plastics, Inc. is a premier manufacturer and supplier of thermoformed plastic components, offering pressure thermoforming, vacuum thermoforming, trimming and assembly value-added services. Thermoforming is a method of processing cast or extruded plastic sheet...