Custom Metal Fabrication & CNC Machining Serving Riverside County, CA

Riverside County manufacturers researching a metal fabrication and CNC machining partner are often looking for the same thing: a Southern California shop that can handle fabrication, machining, and finishing without adding a second vendor. Pen Manufacturing serves Riverside County and the wider Inland Empire from its Anaheim location, offering metal fabrication, CNC machining, sheet metal fabrication, welding, finishing, and assembly under one roof, backed by AS9100D and ISO 9001 certification, NADCAP and ITAR registration.

Every Pen Manufacturing service is available to Riverside County and Inland Empire customers, with all work completed at the company’s Anaheim location. For a Riverside County OEM, that means the same team that fabricates, machines, and welds a part also finishes and assembles it, rather than routing the project through a separate finishing vendor.

Have a project that spans fabrication and finishing? Request a quote and Pen Manufacturing can scope the full build.

Pen Manufacturing’s Anaheim location runs Hurco VMX50 and VMX42 CNC vertical mills, manual lathes up to 15 x 120 inches, and four knee mills for CNC machining. Welding is performed to AWS D1.1, D1.2, and D1.6 standards, and finishing options include powder coating, anodizing, e-coating, and galvanizing. A Riverside County OEM can combine machined precision components with a larger fabricated or welded assembly in one build.

Sheet metal fabrication cuts, punches, bends, and welds flat metal stock into enclosures, brackets, panels, and structural components, using processes including laser cutting, waterjet cutting, stamping, hydroforming, and press brake bending. Forming is done on press brakes rated up to 14 feet and 200 tons. All of this runs out of the same Anaheim location as Pen Manufacturing’s machining and fabrication work, so a formed sheet metal housing and machined internal components can be built and assembled together.