CNC (Computer Numerical Control) milling is a highly advanced manufacturing process that has revolutionised the way in which we make objects. It allows for greater precision and efficiency than traditional manufacturing methods and has applications across a wide range of industries.

One of the most common materials used in CNC milling is plastic. Plastic CNC milling is used to produce a wide range of parts and components, from simple prototypes to complex end-use parts. In this article, we will delve into the workings of plastic CNC milling and explore how it can be used to produce high-quality, precision-made parts.

What is Plastic CNC Milling?

Plastic CNC milling is a subtractive manufacturing process that involves using computer-controlled machines to remove material from a block of plastic in order to create a part or component. The process is highly precise, allowing for tight tolerances and complex geometries to be achieved with ease.

Overview of the Milling Process

The CNC milling process involves a few key steps:

  • Design: The first step in the CNC milling process is to create a 3D model of the part or component that is to be produced. This is typically done using computer-aided design (CAD) software.
  • Programming: Once the design is complete, the next step is to program the CNC milling machine to follow the path required to produce the part. This involves creating a set of instructions that tell the machine how to move the cutting tool in order to remove the material from the block of plastic.
  • Milling: With the program loaded into the machine, the milling process can begin. The cutting tool moves along the path specified in the program, removing material from the block of plastic until the desired shape and dimensions are achieved.
  • Finishing: Once the milling process is complete, the part may require additional finishing processes such as sanding or polishing to achieve the desired surface finish.

Types of Milling Machines used in Manufacturing

As a premier manufacturing company, we have a range of capabilities to produce components with diverse geometries and shapes. We utilise advanced milling machines, including 3-axis, 4-axis, and 5-axis machines, to ensure precision and accuracy. Our team of specialists operates these sophisticated machines to ensure that your components are manufactured with unparalleled precision and quality.

3-axis machines, such as our HAAS VF2’s are a cost-effective solution and are perfect for producing simple shapes. They move through the X, Y, and Z axes to remove material from the workpiece.

Our HAAS VF2 with rotary table is the perfect solution for machining cylindrical components with precision and accuracy. Equipped with an additional A-axis rotation, it is ideal for cutting around the side of the workpiece. This advanced functionality is unique to 4-axis machines and makes them highly suitable for manufacturing cylindrical components.

Our HAAS UMC 750  is an exceptional 5-axis milling machine, equipped with advanced capabilities that enable precise and efficient manufacturing of complex geometries. With three linear and two rotational axes, this machine can rotate the machine head and tool head, providing five combined axes capable of machining a range of materials. This advanced functionality makes it ideal for producing intricate components. 

Advantages of Plastic CNC Milling

Plastic CNC milling offers a number of advantages over traditional manufacturing methods:

  • Precision: CNC machines are capable of achieving extremely tight tolerances, which is crucial for parts that require a high degree of accuracy.
  • Efficiency: CNC milling is a highly efficient process, with machines capable of producing parts at a much faster rate than traditional manufacturing methods.
  • Flexibility: CNC machines can produce a wide range of parts and components, from simple prototypes to complex end-use parts.
  • Consistency: Because CNC milling machines are computer-controlled, they can produce parts with a high degree of consistency, which is important for large-scale production runs.

Applications of Plastic CNC Milling

Plastic CNC milling has a wide range of applications across a variety of materials and industries, including:

  • Aerospace: CNC milling is used to produce high-precision components for the aerospace industry, including turbine blades, engine components, and structural parts.
  • Automotive: CNC milling is used to produce parts for cars and trucks, including engine components, suspension parts, and body panels.
  • Medical: CNC milling is used to produce medical devices and implants, including prosthetics, surgical instruments, and dental implants.
  • Electronics: CNC milling is used to produce components for electronic devices, including circuit boards, housings, and connectors.


Plastic CNC milling is a highly advanced manufacturing process that offers a number of advantages over traditional manufacturing methods. It is a precise, efficient, and flexible process that can be used to produce a wide range of parts and components. With applications across numerous industries, CNC milling is a crucial aspect of modern manufacturing. Contact us today to learn more and take advantage of the benefits of plastic CNC milling

CNC Milling Services

Learn more about our CNC milling capabilities and how we can help bring your ideas to life. Our expert team is ready to take on your next project. We offer comprehensive plastic CNC milling services from the micro in size to much larger 1 meter long components.

CNC Milling Services