CNC Plastic Machining in Southern California
Located in Upland, California, Upland Fab provides precision CNC plastic machining to San Bernardino County, including Rancho Cucamonga, Ontario, Narod, Montclair, Pomona, and Claremont. We are a plastics and composite machining company with a 15,000 sq. ft., state-of-the-art facility to produce precision parts and assemblies to exact specifications for a wide range of industries. As a family-owned business for three generations, our team has built a reputation for quality and reliability in plastics machining for various CNC operations.
Precision CNC Plastic Machining Services at Upland Fab
With a fleet of cutting-edge CNC machines, we offer a range of CNC plastic machining services for custom, precision parts manufacturing. Our facility can complete the following operations to produce your parts to exact requirements:
- CNC Milling: Delivers complex, intricate shapes with 3-, 4-, and 5-axis machines, in a single setup by carving holes and details from a solid block of material.
- CNC Turning: Creates precise, cylindrical parts using a 2- or 3-axis lathe and rotating chuck, where the cutting tool is stationary, and the material spins to produce the desired shape.
- 5-Axis Machining: Uses a computer-controlled tool to cut material along 5 different directions, three linear axes (X, Y, and Z) and two rotational axes (A, B, or C), allowing the tool to reach almost any part of an item without hand adjustment.
- Precision CNC Mill-Turn: Combines milling and turning operations in one machine, where the cutting tool and workpiece rotate for multiple techniques in a single cycle. Enables intricate, multi-axis parts production.
To support our CNC plastic machining services, Upland Fab provides engineering guidance, 3D printing, and value-added services, such as in-house annealing, to deliver complete components and assemblies to your exact requirements.
We Work With High-Performance Plastics and Composite Materials
To machine plastics accurately, it's essential to partner with a machinist who understands how these difficult-to-machine materials respond to heat and other stresses. We offer over 50 years of experience machining plastics and composite materials to Southern California clients, who demand precision, accuracy, and repeatability for critical applications. With a team of experienced engineers, we understand the unique machining techniques needed to produce high-quality plastic parts from materials such as:
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Precision Plastics |
High-Performance Composites |


