Industrial, Instrumentation Electronics

Industrial electronics includes a broad range of devices in many industries often involving the operation of multiple devices or equipment within close proximity of each other. Limiting the generation of EMI from a device as well as protecting it from external sources of EMI or RFI is critical to modern factory facilities.

EMI (Electromagnetic Interference) and RFI (Radio Frequency Interference) shielding is critical in industrial environments because modern factories and facilities combine high-power electrical equipment with highly sensitive control, sensing, and communication systems. Even brief interference can lead to data corruption, control errors, false sensor readings, unplanned downtime, or product quality issues.

High-power electrical equipment, such as VFDs, servo drives, welders, and switchgear

>>>Generate strong electromagnetic noise, disrupting>>>

High-power electrical equipment, such as VFDs, servo drives, welders, and switchgear

Effective shielding ensures that electrical noise is contained at its source and prevented from coupling into vulnerable circuits. Shielded control cabinets protect PLCs and industrial PCs, while shielded cables preserve signal integrity for sensors, encoders, and industrial Ethernet networks. In robotic cells and automated production lines, shielding prevents EMI from causing motion errors or communication faults that could impact safety and precision. 

RFI shielding is equally important as wireless devices, industrial IoT systems, and radio-based communications become more common on factory floors. Proper grounding, filtered cable entries, and metal enclosures work together to create stable, predictable operating conditions. Overall, EMI and RFI shielding is not optional—it is a foundational requirement for reliability, safety, and performance in modern industrial systems.

majr-industrial-instrumentation-electronics-wide

Oil & Gas

  • Communication
  • Remote control centers
  • Systems control and monitoring
  • Data protection for exploration
  • Generators/remote power

Mining

  • Communication
  • Remote control centers
  • Systems control and monitoring
  • Data protection for exploration
  • Generators/remote power

Construction

  • Communication
  • Remote control centers
  • Generators/remote power

Robotics & Automation

  • Systems control and monitoring
  • Data protection
  • Generators/backup power

Industrial Shielding Resources

White Paper – How Military-Grade Shielding Strategies Protect Government and Commercial Data Centers From EMI & RFI

Government and commercial data centers are densely packed with servers, routers, power supplies, and network switches, making them susceptible to both electromagnetic interference (EMI) and radio frequency interference (RFI). Such interferences tend to come from both internal and external sources, including improperly shielded equipment, nearby broadcast towers, industrial machinery and purposeful criminal activity. Left unaddressed,…

White Paper – Shielding Honeycomb Ventilation Panels and Dust Filtration Characteristics

MAJR Products Corporation Vice President of Electrical/EMC Engineering, Michael J. Oliver, authored this white paper. The white paper presents airflow characteristics of electromagnetic and radio frequency interference (EMI/RFI) shielding honeycomb ventilation panels and dust filtration characteristics of dust filtration panels. For a Systems Engineer, airflow data helps to identify the correct panel size for electronic…

Conductive Rubber for EMI/RFI Shielding & Environmental Protection

Conductive rubber may be one of your most valuable assets when engineering for civilian or military projects.  It can help you achieve both EMI shielding and environmental protection of your application to required specifications.  It can also be cut or shaped to your needs, making it very versatile.  Conductive rubber could be one of those…

An Easy Way to Calculate a Microwave Wavelength in Inches

Download this free technical article on an alternative (and easier!) way to calculate microwave wavenlength in inches, developed by MAJR Products V.P. of electical engineering, Mike Oliver. It looks like Javascript isn’t enabled in your browser. Please enable it in order to fill out this form.

EMI Shielding Design—5 Simple Tips For EMC Professionals

Is there a process to follow when specifying EMI/RFI shielding products for electronic equipment boxes, cabinets and enclosures? At MAJR Products, we get that question from mechanical, electrical, and RF engineers all the time, especially regarding our shielded ventilation panels. This post will discuss five tips to streamline your shielded vent panel design and specification…

EMP Shielding: The Background, Need and Solutions

Definitions & Distinctions HEMP is defined as an instantaneous, intense electromagnetic pulse (EMP) field that can overload and disrupt from great distances electrical systems and microcircuits. It is generally assumed if one occurred it would be set off by a high altitude nuclear explosion; obtainable by missile flight1 or, more recently believed, from a satellite.…

MAJR Shielding Products For SCIFs | A Strategic Design Guide

What exactly are SCIFs, and why do engineers need a variety of mil-spec shielding products when designing them? SCIF’s are Sensitive Compartmented Information Facility (pronounced “skiff”), a U.S. Department of Defense term for a secure room. It can be a secure room or data center that guards against electronic surveillance and suppresses data leakage of…

Where And How To Source Shield Seal Gaskets | RFI-EMI Shield Products

Where can engineers, designers, and technical teams go to find the technical specifications and professional assistance they need to source conductive environmental gaskets and other RFI/EMI shielding products? Depending on the application, EMI shield seal gaskets are available in various material combinations, configurations, and gasket sizes. So, where can engineers get started on their search…

EMI Grounding Washers from MAJR

When you are working to ensure that your electronic enclosures are securely sealed from EMI, it’s important to use the correct materials for your application. In the event that you’re using standard flat washers that are improperly designed EMI leakage can occur causing failure in the equipment and entire operating system.  The MAJR Way MAJR…

Waveguide Ventilation Panels from MAJR Products

What is a Honeycomb Waveguide Panel Shielding honeycomb waveguide panels let airflow into and out of an EMI/RFI shielded enclosure. The entering fresh air may be either cooled, heated, or at ambient temperature depending on the shielded enclosure environment and contents. For electronic equipment, the primary reason for airflow is usually to cool electronics; if…

MAJRAbsorber: Uses & Benefits

Radio frequencies (RF) are an amazing tool to send communications via airwaves to a receiver device that can be thousands of miles away. They’ve been harnessed since the beginnings of radio and now reach into every crevice of daily life for consumers and manufacturers.   Unfortunately, radio frequencies also cause Electromagnetic interference (EMI), also called radio-frequency…

MAJRabsorber™: The Best High-Frequency RF Absorber Material

MAJRabsorber™: An Innovative RF Absorber Material Electromagnetic interference (EMI) is a major issue anywhere electronic circuits are found. Mitigating factors like increases in device frequency, high integration in electronic systems, higher power densities, and reductions in PCB thickness and size all contribute to EMI.  Shielding electronic devices from electromagnetic noise with conductive materials, such as…

How to Use Our EMI/RFI Shielding Design Flow Chart

Once you’ve determined that your systems or components need isolation from surrounding electromagnetic fields, or to block the transmission of additional signals, designing the appropriate enclosure is crucial.  Our shielding design flow chart can help designers and engineers navigate the varied types of EMI/RFI shielding materials available to choose the right materials that meet your…

EMI/RFI Shielding For Medical Device Applications

EMI / RFI Shielding For Medical Device Applications Take any average-sized hospital in the U.S. and count the number of electronic devices in use. According to the World Health Organization (WHO), that number averages over 10,000. Imagine all those separate life-saving devices – magnetic resonance imaging (MRI), computed tomography (CT or CAT), Electromyography (EMG) and…

HEMP Danger Requires EMP Shielding

Fortunately, the chance of a direct military attack on America from a foreign country is very slim. However, as we’ve seen from 9/11 and other terrorist attacks on our soil, the chance of a smaller and more terroristic threat is still very real. One of those types of attack is from a High-Altitude Electromagnetic Pulse…

IP Ratings & Conductive Rubber

Conductive rubber in any form helps defense agencies and commercial electronic product industries meet environmental and EMI/RFI emissions requirements, which is crucial to protecting the integrity of susceptible applications like HVAC systems, power and signal panels, door and panel hinges, latches and brackets, floor drains, structure seams and ISO intermodal, container brackets, antenna mounts, cable…

TEMPEST, SCIF, and Electronic Shielded Enclosures

For systems to be certified to TEMPEST (Telecommunications Electronics Material Protected from Emanating Spurious Transmissions) specific test standards need to be passed such as NSA No. 94-106 for shielded enclosures and other NSA standards depending on the intended environment and operation. The TEMPEST certified telecommunications electronic enclosure needs to be a “Faraday Cage”. A Faraday…

MAJRabsorber™ Innovation Changes RF Absorber Expectations

Every once in awhile true innovation transforms an industry.  Consider what the cloud has meant for business as it brought about data storage, access and co-worker collaboration.  Look at how the Internet of Things is frontiering cashierless shopping. Such champions in innovation will not only make the industry and applications they integrate with faster, easier…

EMI/RFI Wire Mesh Grounding and Conductive Elastomer Washers: Hardened Enclosure Shielding in Small Places

The smallest details are often the ones that will determine whether an EMI hardened enclosure will be compliant or will not  meet EMC requirements. That’s especially true when it comes to the many bolts, screws, rods or shafts that need EMI/RFI shielding or grounding.  When you have to attenuate a signal or ground components of…

Honeycomb Waveguide Panels

Honeycomb Waveguide – An Attenuation Performance Explanation of a MAJR Products Honeycomb Waveguide Panel due to the Effect of a Waveguide Beyond Cuttoff Principle What is a honeycomb Waveguide panel? A shielding honeycomb waveguide panel is a product that lets air flow into and out of an EMI/RFI shielded enclosure. The entering fresh air may…

EMI/RFI Wire Mesh Grounding Washers And Conductive Elastomer Washers

EMI/RFI Wire Mesh Grounding Washers And Conductive Elastomer Washers With expertise in EMI/RFI shielding products development to be utilized in military and commercial applications, the engineers at MAJR Products provide EMC compliance and electrical safety grounding equipment. The grounding and conductive washers produced by MAJR Products are designed and manufactured to suit the needs of…

Conductive Rubber – What It Is and Where It’s Used

CONDUCTIVE RUBBER What It Is and Where It’s Used A MAJR Products Corp. Article by Mike Oliver     What is Conductive Rubber? Definition: Conductive Rubber is a generic term referring to any rubberized material with conductive properties which reduce or eliminate the EMI/RFI (electromagnetic interference and radio frequency interference) “noise” that is often associated…

EMI / RFI Shielding Products for Industrial & Instrumentation Electronics

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