What the Custom Machining Process Really Looks Like

Posted on November 20, 2025

The Projects

Many projects start with a basic idea on paper. At Royal Custom Plastics, that simple sketch is the first step in creating a precise, reliable, and ready to use plastic part. Whether you work in food and dairy processing, cheese packaging, automation, OEM manufacturing, or industrial equipment, understanding how a part goes from concept to completion can help you plan your project with confidence.

Our team focuses on machining and fabricating plastic only, which protects your components from cross contamination and supports strict food safe and chemical resistant requirements. Here is a clear look at how the custom machining process works from start to finish.

1. Initial Idea and Consultation

Every project begins with your idea. You may bring a sketch, a worn out part that needs to be replaced, or a concept for a new piece of equipment. During the initial consultation, we review your goals, the environment the part will operate in, and any performance requirements such as chemical resistance, heat tolerance, strength, cleanability, or abrasion resistance.

This stage ensures we fully understand what your part needs to do before any material or machining decisions are made.

2. Material Selection

Choosing the right plastic material is one of the most important decisions in the process. Our team looks at the demands of your application and recommends materials such as Acetal, UHMW, ABS, Nylon, Acrylic, or others with specific properties.

For example:

  • Food processing parts often need high wear resistance and FDA compliant materials.
  • Automation components may need dimensional stability and low friction.
  • Industrial equipment may require strong, durable plastics that handle repeated impact or harsh cleaning chemicals.

Selecting the correct plastic ensures performance and long service life.

3. CAD Modeling and Design Refinement

Once the material is chosen, the initial idea is transformed into a detailed digital model. CAD software allows us to refine dimensions, verify tolerances, and confirm that the part will fit or function correctly within your equipment.

This stage also helps identify possible improvements to the design. Royal Custom Plastics often recommends small adjustments that increase durability or reduce future maintenance.

4. Precision Machining and Fabrication

With the design finalized, the machining process begins. Using advanced equipment and years of hands on experience, we cut, shape, and finish the plastic to exact specifications.

Because we specialize in plastic only, the machining environment stays clean. There is no metal debris or dust that could contaminate food grade or sanitary components. This is especially valuable for clients in dairy, cheese packaging, and food processing.

5. Quality Checks and Final Adjustments

Each part is inspected to ensure accuracy and consistency. We check dimensions, surface finish, fit, and overall performance. If the part needs to mate with other equipment, connect with fasteners, or operate under specific conditions, we make sure everything aligns before it leaves our shop.

Quality control helps prevent downtime and ensures the part installs smoothly on your end.

6. Ready for Installation

The final step is delivering a part that is ready to be put to work. Many clients choose to order extra components or create a long term replacement plan to minimize future interruptions.

Whether your part supports a packaging line, a conveyor system, a washdown area, or industrial automation equipment, our process ensures it arrives durable, clean, and built for your exact needs.

Working With a Partner Who Understands Your Industry

Royal Custom Plastics works with industries that rely on precision and reliability every day. By focusing on plastics only, we provide clean, safe, and dependable components. By supporting ideas from early sketches through final machining, we help customers improve equipment performance and reduce downtime.

No matter the size of the part or the complexity of your design, our goal is to turn your idea into something that works exactly as it should.