Custom Plastic Fabrication, Enclosures & CNC Machining - Custom Metal Fabrication Project Portfolio

At PEN Manufacturing, we provide custom plastic fabrication, plastic welding and fabrication, and plastic CNC machining services for OEMs and industrial manufacturers across the United States. Whether you need a prototype, low-volume production, or high-volume manufacturing, our experienced team delivers precision plastic components and assemblies that meet demanding performance, quality, and durability requirements.

Engineering plastics are widely used because they are lightweight, corrosion-resistant, durable, and cost-effective. They offer excellent chemical resistance, electrical insulation, and design flexibility, making them ideal for applications across aerospace, medical devices, electronics, industrial automation, transportation, construction, and consumer products.

With advanced machining capabilities, skilled fabricators, and strict quality control processes, PEN Manufacturing helps customers transform complex designs into reliable, production-ready plastic parts.

Our team specializes in manufacturing custom plastic components that meet your exact design and performance specifications. From material selection and precision machining to finishing and assembly, we support every stage of the manufacturing process.

Our plastic manufacturing capabilities include:

Whether you're replacing metal components with lightweight plastics or designing a completely new product, we work closely with your engineering team to achieve optimal functionality, durability, and manufacturability.

Selecting the right material is essential for long-term performance. We machine and fabricate a wide range of engineering plastics to suit different industrial applications.

Our plastic CNC machining capabilities enable us to manufacture complex geometries with exceptional accuracy and repeatability. Using advanced machining equipment, we produce precision plastic components with tight tolerances for mission-critical applications.

Our machining services include:

Every project undergoes careful inspection to ensure dimensional accuracy and consistent quality throughout production.

As an experienced plastic welding company, we provide reliable plastic welding services for components that require strong, durable joints and leak-resistant assemblies. Our fabrication processes help create high-performance plastic products designed for demanding industrial environments.

We also manufacture custom plastic enclosures that protect sensitive equipment from moisture, chemicals, dust, and harsh operating conditions. Each enclosure is built to your specifications, ensuring the right fit, functionality, and long-term performance.

Our plastic fabrication solutions support a wide variety of industries, including:

Whether you require precision machined plastic parts, structural components, or custom enclosures, our team delivers solutions designed to meet your industry's performance standards.

Choosing the right manufacturing partner is essential for maintaining quality, production efficiency, and supply chain reliability.

With PEN Manufacturing, you benefit from:

Our collaborative approach helps reduce manufacturing challenges while delivering components that perform reliably in demanding applications.

Our engineering team works closely with customers from concept through production to improve manufacturability, optimize material selection, and reduce production costs. By reviewing designs early, we help identify opportunities to simplify fabrication, improve part performance, and ensure efficient manufacturing without compromising quality or functionality.

Discover how our precision plastic fabrication and CNC machining capabilities can support your next manufacturing project.

From aerospace applications such as custom bearings and bushings in landing gears to hydraulic pump components, and applications in other industries such as home construction, building components, and machinery, we have the bronze and copper alloys for your industry needs.