Custom Machined Plastic Parts

CRG is now offering services for the production of custom machined plastic parts made to your exact specifications. These services extend our proven capabilities for producing  gaskets and seals and custom fabricated parts from rubber, sponge and foam, and other materials. To find out more about CRG services for custom machined plastic parts, please download our English or French fact sheet.

Custom machined plastic parts have use in a number of commercial, industrial, and automotive/mass transit applications. These include replacement parts for Maintenance, Repair and Operations (MRO), components for Original Equipment Manufacturers (OEM), and prototyping for product developers.

The term “CNC” refers to cutting material with a computer numerically controlled (CNC) machine. The CNC machining process interprets CAD drawings and translates the data to the production machine. CNC machining is the best choice for the rapid prototyping and production of high-quality plastic parts that require the greatest degree of dimensional accuracy, critical surface finishes, and material-specific properties.

CNC machining of plastics involves the production of finished parts using a computer controlled router or milling machine. Using this technology, plastic materials can be cut, shaped, drilled, contoured, surfaced, etc. with the use of precision tooling under computer control.

While many plastic parts are molded, CNC machining offers distinct advantages. First, no expensive molds are required when plastic parts are machined. Secondly, part designs can be altered quickly and easily. And, thirdly, complex part geometries, including those with threads and undercuts, can be easily produced.

With our in-house CNC machining technology, CRG can process a wide variety of plastics materials ranging from .001” thick and greater to widths and lengths up to 126”. Our close-tolerance cutting to within ±.005” ensures your specs will be achieved with minimal waste of material. Our cut-to-size parts are always clean and dust-free, with smooth, chip-free edges.

Materials from which CRG can produce custom machined plastic parts include the following:

  • Phenolics

  • UHMW

  • HDPE

  • Acrylic

  • Urethane Shore D

...and more.

CRG can provide information and guidance for material selection and cost for all your plastic fabrication needs.

CRG is dedicated to quality and responsiveness. All parts we make are produced under controlled conditions in our ISO 9001-certified facility. Every job is inspected throughout our manufacturing process and a final inspection is performed on each order before it is shipped. Our reputation for industry-leading responsiveness is unsurpassed and we specialize in the fast order turnaround of both small- and large-run orders.

To speak directly with the CRG sales team about your plastic fabrication needs, please contact us at