Photofabrication Engineering Inc. logo in red color for precision photochemical etching manufacturer.

Etched Metal Grids

Custom metal grid processing, designed and manufactured for precision

At Photofabrication Engineering, Inc. (PEI), we specialize in manufacturing custom etched metal grids with exceptional precision, consistency, and surface quality.

Using our advanced photochemical etching capabilities, we manufacture precision metal grids with straight sidewalls, tight opening sizes, and burr-free surfaces. These grids are engineered to maintain consistent flow, structural integrity, and alignment under even the most demanding operational conditions.

Whether you’re designing components for electron control, RF signal modulation, or medical imaging, we deliver scalable solutions that meet your specifications on time and within budget.

What Are Metal Grids?

Metal grids are thin, patterned components that serve critical roles in high-performance systems. Used to control electron beams, guide electromagnetic waves, and separate signal pathways, these grids are found in:

  • Microwave receivers and transmitters
  • Communication satellites
  • Radar and threat detection systems
  • Troposcatter communication platforms
  • Traveling Wave Tubes (TWTs)
  • X-ray and beam control systems
  • Precision assemblies where perforated metal is used for controlled signal passage or shielding

These essential components must be manufactured with high dimensional accuracy and smooth surfaces to avoid field disruption, thermal distortion, or misalignment, making photochemically etched grids the clear choice for engineers who prioritize performance and repeatability.

Advantages of Precision Chemical Machining for Etched Wire Mesh Metal Grids

Unlike mechanical methods such as stamping or laser cutting, photochemical etching (PCE) provides exceptional control over geometry without introducing mechanical stress, heat distortion, or burrs. That’s why leading OEMs turn to PEI when quality, lead time, and precision matter most.

Key Benefits of PCE:

  • Burr-Free and Stress-Free – The etching process avoids force and heat, eliminating warping and deformation in delicate features.
  • Straight Sidewalls and Tight Concentricity – Critical for grid alignment and electromagnetic performance.
  • Design Flexibility – Easily create complex cut-outs, fine mesh structures, or multi-aperture patterns without expensive tooling.
  • Scalability – From single-unit prototypes to high-volume production, all grids are built to the same high-quality standards.
  • Optimized for Finishing – Smooth, uniform surfaces are compatible with plating, brazing, edging processes, or coating applications.

Whether you need fine-pitch mesh for an RF filter or multilayer signal routing, our process ensures you receive a custom-etched component that fits your equipment, meets spec, and complies with industry standards.

Materials We Work With

 

At PEI, we are materials experts who specialize in etching difficult-to-machine metals with high precision. Our typical thickness range is 0.001″ to 0.010″, with material compatibility across a wide range of alloys.

Metals include:

  • Molybdenum

  • Tungsten

  • Hafnium

  • Oxygen-Free Copper (OFC)

  • Beryllium Copper

  • AMZIRC (Zirconium-enhanced OFC)

Also available:

aluminum, carbon steel, galvanized steel, and expanded metal sheets for broader compatibility

Whether you’re working with light, highly conductive metals or durable, high-density alloys, we have the capabilities to deliver finished components that align with your project’s material requirements and functional demands.

Quality & Certifications 

We know how important quality is to your software-controlled systems, sensors, and communications hardware. That’s why PEI maintains a precise, repeatable fabrication process and adheres to stringent quality control at every stage.

  • ISO 9001:2015 Certified
  • AS9100 Certified (Aerospace Quality Standard)
  • All projects are supported by full documentation, traceability, and lot control
  • Built-in support for timely delivery, prototype iteration, and ongoing customer support

Our customers rely on PEI to deliver etched metal grids with exceptional uniformity, integrity, and compatibility, regardless of batch size or complexity.

The Industries We Serve

As experts in the production of bipolar plates, PEI serves customers in industries such as:

Renewable Energy

In stationary fuel cell systems, our bipolar plates ensure consistent and reliable power generation and efficient energy output. Their ability to withstand harsh operating conditions and maintain optimal performance is essential for uninterrupted energy delivery.

Automotive

Bipolar plates are crucial in developing fuel-cell electric vehicles (FCEVs), enhancing performance, reliability, and longevity in automotive applications. They are integral to the industry’s move towards environmentally friendly transportation solutions.

Aerospace

Bipolar plates are found in fuel cell systems that demand high efficiency and reliability for optimal performance in challenging environments. Their lightweight yet robust design and exceptional conductivity and corrosion resistance make them ideal for aerospace applications.

The work we've done

Quality & Certifications 

We know how important quality is to your software-controlled systems, sensors, and communications hardware. That’s why PEI maintains a precise, repeatable fabrication process and adheres to stringent quality control at every stage.

  • ISO 9001:2015 Certified
  • AS9100 Certified (Aerospace Quality Standard)
  • All projects are supported by full documentation, traceability, and lot control
  • Built-in support for timely delivery, prototype iteration, and ongoing customer support

Our customers rely on PEI to deliver etched metal grids with exceptional uniformity, integrity, and compatibility, regardless of batch size or complexity.

Why Choose PEI for Precision Custom Parts?

With over 50 years of experience in precision photochemical etching, PEI is trusted by some of the most demanding industries in the world.

Here’s why engineers and sourcing specialists continue to choose us:

  • Proven success in aerospace, defense, medical, and communications industries
  • Capable of etching both flat and formed grid structures to meet your desired shape
  • Fast prototyping, low-cost tooling, and short lead times
  • Expertise in handling separation components, wire mesh geometries, and perforated metal profiles
  • Dedicated to solving complex engineering challenges in a timely manner and at scale

Let’s Create the Next Generation of Precision Grids

 Partner with PEI for your next generation of custom etched grids. Whether you need prototypes, support for design iterations, or full-scale production, we’ll work closely with you to deliver components that perform, last, and meet your technical goals.

Contact our engineering team today to discuss your specifications, material selection, and application needs.