
Custom Metal Fabrication & CNC Machining in Irvine, CA
- 40+ Years In Business
- AS9100D Certified
- ISO 9001:2015 Certified
- In-House CNC Milling & Turning
- Prototypes on Production Equipment
- Design & Manufacturability Review
- AS9100D, ISO 9001 & ITAR Registered
Pen Manufacturing is a custom metal fabricator and CNC machining service serving OEMs, engineers, and procurement teams in Irvine, CA, from its Anaheim location, which has served the area since 1982. Pen Manufacturing is AS9100D and ISO 9001 certified and ITAR registered, supporting CNC machining, sheet metal fabrication, metal fabrication, welding, and finishing under one roof.
From Prototype to Production in Irvine, CA
Pen Manufacturing's prototype and short run machining capability uses the same equipment as its full-scale precision CNC production, so a prototype validated today can move into a larger production run without a change in process or quality. Pen Manufacturing can work from an existing CAD or CAM file, or from a hand-drawn sketch if a formal design does not exist yet, and its team provides design assistance, engineering assistance, manufacturability review, and material recommendations before a part is cut. Staff use AutoCAD for design and SURFCAM to program the CNC machines. This matters most for product development teams that need to validate a design before committing to a larger production run.
Have a prototype to validate? Request a quote from Pen Manufacturing's team.
Precision CNC Machining at Our Anaheim Facility, Available to Irvine OEMs
Pen Manufacturing’s precision CNC machining department runs a Hurco VMX50 vertical mill with 4th-axis capability and a 50 x 26 x 24 inch work envelope, alongside a Hurco VMX42 vertical mill. The manual machine shop adds lathes up to 15 x 120 inches and four knee mills, giving Irvine engineering teams both CNC and manual capacity for prototype and production parts.
Pen Manufacturing's core processes are CNC milling and turning, and its machining team brings more than 200 years of combined machining experience to complex projects that require consistent dimensional accuracy. The team is capable of machining components in a broad array of sizes, dimensions, and shapes to support diverse Irvine OEM requirements.
Specialized CNC Machining Capabilities
Beyond standard milling and turning, Pen Manufacturing offers several specialized machining capabilities for projects with specific material or geometry requirements: