5 Reasons to Choose Machined Plastic Over Metal in Industrial Components

In the world of engineering and industrial manufacturing, the choice of material often determines a product's success. Although metal has long been considered the standard material, more and more companies today are opting for CNC-machined plastic components. But why this shift?

In this article, we explore five key advantages of machined plastic compared to metal for industrial technical components.

Lightweight Without Compromise

Technical plastic can offer a significant weight reduction while still maintaining excellent mechanical properties.
This is especially advantageous in industries such as: aerospace, robotics, and industrial automation.
Lower mass translates into lower energy consumption, easier handling, and reduced vibration.

 Easier Machinability = Lower Costs for Small to Medium Batches

Plastic is simpler to machine than metal alloys like aluminum or steel:

• shorter production times
• reduced tool wear
• less waste

All of this reflects in lower manufacturing costs, particularly for small to medium production runs.

High Chemical and Corrosion Resistance

Many technical polymers (such as PTFE, PEEK, PVDF) resist strong acids, bases, oxidizing agents, and salt water.
They’re ideal for chemical, medical, or food processing plants where metal would quickly corrode.

 Electrical and Thermal Insulation Properties

Unlike metals, plastic:

• is non-conductive electrically (excellent for insulation)

• has low thermal conductivity

• is ideal for electronic and cryogenic applications
  This reduces the need for additional treatments or coatings.

 Wide Range of Technical Materials

There are hundreds of technical polymers/technopolymers with specific characteristics:

• POM/Delrin for high dimensional stability

• Nylon for wear and friction resistance

• PEEK for very high temperature and mechanical strength
  Each material can be selected based on your project.

CNC-machined plastic components are now a reliable and advantageous solution in numerous industrial sectors.

Whether you're developing a new product or optimizing a production line, choosing the right material can make all the difference.

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