INDEPENDENT THERMOFORMING EXPERTISE

Plug Assist Design.
Less Material.
Same Compression Strength.

The right plug assist material and geometry can improve wall thickness distribution, reduce material consumption and help maintain the required compression strength of thermoformed cups.

Advanced thermoforming plug assist showing complex plug geometry and size
Advanced plug assist design – practical tooling experience from DTC.
Better Material Distribution
Lower Material Consumption
Required Cup Strength
Simple thermoformed plastic cup with its corresponding plug assist
A simple thermoformed cup and its corresponding plug assist.

WHY PLUG DESIGN MATTERS

It Is Not Just About the Machine Settings.

Even a well-adjusted thermoforming machine cannot fully compensate for an unsuitable plug assist design.

The interaction between plug material, geometry and process conditions influences how material is distributed throughout the formed product.

Optimizing these factors can create opportunities to reduce material consumption without compromising the required cup performance.

THE BUSINESS IMPACT

Less Material Does Not Have to Mean Less Strength.

Plug assist optimization is about using material more effectively – not simply reducing sheet thickness.

01 / MATERIAL

The Right Plug Material

Plug material and surface properties influence the interaction with the heated sheet during forming.

02 / GEOMETRY

The Right Plug Geometry

A suitable plug shape can support more effective material distribution in critical areas of the cup.

03 / PERFORMANCE

The Required Cup Strength

The goal is to identify material-saving opportunities while maintaining the required compression strength and product quality.

FROM SIMPLE TO ADVANCED

The Difference Is in the Details.

Not every cup requires the same plug assist design.

Depending on product geometry, material and production requirements, a more advanced plug design may offer significant optimization potential.

DTC evaluates the interaction between the existing tooling and the production process to identify practical improvement opportunities.

Advanced thermoforming plug assist shown together with its corresponding plastic cup
Advanced plug assist with its corresponding thermoformed cup.

EXPLORE MATERIAL EFFICIENCY

How Much Material Could You Save?

Explore how changes in sheet thickness affect theoretical cup weight. Use our thermoforming cup weight calculator to estimate material consumption and evaluate potential savings.

CALCULATE YOUR CUP WEIGHT →

INDEPENDENT PROCESS EXPERTISE

Optimize the Process. Not Just the Plug.

Effective plug assist optimization requires understanding the complete thermoforming process.

01. Analyze

Evaluate existing plug geometry, material distribution and production conditions.

02. Identify Potential

Determine where plug design and process adjustments may improve material efficiency.

03. Validate

Assess product quality and compression strength to verify that the required performance is maintained.

FREQUENTLY ASKED QUESTIONS

Plug Assist Design – FAQ

What is a plug assist in thermoforming?

A plug assist is a forming tool that mechanically pre-stretches the heated sheet before or during the forming process. Its design influences material distribution in the finished product.

Can plug assist design reduce material consumption?

Yes. Suitable plug material, geometry and process settings can improve material distribution and may create opportunities to reduce sheet thickness while maintaining required product performance.

Does a lighter cup automatically mean lower strength?

Not necessarily. Cup strength depends on several factors, including material properties, product geometry and wall thickness distribution. Any weight reduction must be validated against the required compression strength.

Can existing thermoforming plugs be optimized?

In many cases, existing tooling can be evaluated for improvement opportunities. The appropriate solution depends on the product, tooling condition and process requirements.

Is Your Plug Design Limiting Your Potential?

Let's take a closer look at your thermoforming process and identify opportunities to improve material efficiency without compromising the required cup performance.

DISCUSS YOUR CHALLENGE →