CNC machining materials

CNC Machining in PET

Plastics are another common material used in CNC turning because they are available in many different options, are relatively inexpensive, and have faster machining times. Commonly used plastics include ABS, acrylic, polycarbonate and nylon.

PET (Polyethylene Terephthalate) Description

PET is a thermoplastic material known for its excellent mechanical properties, clarity, and chemical resistance. It is commonly used in packaging applications and as a replacement for glass.




Beverage bottles
Food packaging
Textile fibers
Electrical insulation


Good mechanical strength
Excellent clarity and transparency
Chemical resistance


Limited heat resistance
Can be prone to stress cracking




Lead Time

< 2days

Wall Thickness

0.8 mm


±0.5% with a lower limit of ±0.5 mm (±0.020″)

Max part size

50 x 50 x 50 cm

Layer height

200 - 100 microns

Popular science information about PET


PET (Polyethylene terephthalate) is a thermoplastic polymer that belongs to the polyester family. It is a widely used material known for its excellent combination of properties, including clarity, strength, and recyclability.

PET is known for its excellent mechanical properties. It has a high tensile strength, allowing it to withstand heavy loads and resist deformation. PET also offers good dimensional stability, maintaining its shape and size even under varying temperature and humidity conditions.


PET is a lightweight material, which makes it suitable for applications where weight reduction is desired. It is commonly used in the production of beverage bottles, as it provides a lightweight and shatter-resistant alternative to glass. PET bottles are also highly recyclable, contributing to sustainability efforts.

Another notable property of PET is its excellent barrier properties. It provides a good barrier against gases, moisture, and odors, making it suitable for packaging applications that require protection and preservation of the contents. PET is commonly used for food and beverage packaging, as it helps to extend the shelf life of the products.

Start manufacturing your parts today