Electromagnetic Shielding and Thermal Management in Industrial Automation and Robotics
The industrial automation market demands exceptionally durable and reliable products capable of operating non-stop in continuous 24/7 production cycles. With the rise of the Smart Factory, collaborative robotics (cobots), and high-precision motion control, the density of electronic components inside machinery has increased exponentially, making interference mitigation and thermal control top design priorities.
Euro Technologies helps this specialized sector meet the most stringent electromagnetic compatibility (EMC) and thermal dissipation requirements by providing high-quality, customized solutions co-engineered directly with clients’ technical teams. As an authorized distributor and converter of Laird products — now integrated into Qnity Electronics — we offer comprehensive engineering support ranging from material selection and rapid prototyping to volume production for programmable logic controllers (PLCs), servo drives, industrial robots, machine vision systems, human-machine interfaces (HMIs), and remote I/O modules.
Technical Challenges in Factory Automation
Integrating electronic systems into industrial production environments presents distinct engineering challenges:
- Switching Noise Suppression in Servo Drives: Motor control drivers and high-frequency inverters produce high levels of conducted and radiated electromagnetic interference (EMI) that can disrupt fieldbuses (EtherCAT, PROFINET, CANopen) and sensitive sensor signal lines.
- Heat Dissipation in Compact Housings: The drive to shrink PLCs, remote modules, and motor-integrated drives concentrates heavy thermal loads in tight enclosures where forced-air ventilation is often impractical.
- Mechanical Reliability and Vibration Resistance: Shielding gaskets and thermal interface materials installed on robotic arms or assembly lines must maintain electrical and elastic properties under continuous mechanical stress.
- Environmental Sealing Against Harsh Agents (IP65/IP67/IP68): Automation enclosures must be protected against fine dust, cutting oils, coolants, and washdown fluids used in manufacturing processes.
Technologies and Product for Automation
Leveraging in-house die-cutting, CNC machining, and automated dispensing, Euro Technologies develops custom solutions that seamlessly integrate into customer device designs.
1. Form-in-Place Dispensed Gaskets (FIPG)
For die-cast aluminum covers, drive frames, and miniaturized sensor housings, Form-in-Place (FIPG) technology enables the robotic deposition of conductive and silicone gaskets directly onto component channels. Co-engineering the dispense path ensures excellent EMI shielding, high-precision environmental sealing, and a significant reduction in manual assembly time.
2. Thermal Interface Materials (TIM) and Thermal Gap Fillers
To efficiently dissipate heat generated by power transistors and control processors, we supply high-conductivity Thermal Interface Materials (TIM). Our portfolio includes soft, highly conformable Gap Fillers, two-part liquid gap fillers suitable for automated dispensing on complex 3D surfaces, and phase change materials that minimize thermal resistance under peak operating loads.
3. Microwave Absorbers for Sensors and Wireless Communications (Laird Eccosorb® Line)
In machine vision systems, industrial optical/radar sensors, and factory wireless communication gateways, the Laird Eccosorb® line of absorbers (such as the lightweight Eccosorb RF-LW series) suppresses cavity resonances and internal reflections, preventing antenna desensitization and protecting signal integrity.
4. Electrically Conductive Elastomers and Environmental Sealing
Conductive elastomers formulated with metallic filler particles (such as nickel-graphite or silver-aluminum) provide an ideal combination of radio-frequency shielding and airtight environmental sealing (IP67/IP68). They are ideal for outdoor control panels and machine-mounted control nodes.
5. Board Level Shielding (BLS) and Fingerstock Contact Springs
Printed circuit board shields (Board Level Shielding – BLS) isolate processing circuits from adjacent power modules, preventing cross-talk. For shielding modular racks and enclosure doors, beryllium-copper fingerstock contact springs deliver constant electrical conductivity and high resistance to mechanical fatigue.
Q&A: Frequently Asked Questions on Industrial Automation
How do you ensure electromagnetic compatibility (EMC) in industrial automation systems and cobots?
In automation systems and collaborative robots, the coexistence of electric motors, fast-switching drives, and precision sensors demands a multi-tiered shielding strategy. Board Level Shields (BLS) isolate microprocessors, conductive or dispensed (FIPG) gaskets line enclosure joints to block radiated emissions, and microwave absorbers dampen internal cavity resonances inside housings.
Which thermal interface materials are best suited for servo drives and miniaturized PLCs?
In compact servo drives and PLCs where space is tight and electronic components are soldered at varying heights, highly conformable thermal Gap Fillers are ideal. They fill air gaps between components and the metal housing with minimal compression force, transferring heat efficiently without placing mechanical stress on solder joints.
What advantages does co-engineering dispensed gaskets (Form-in-Place / FIPG) offer in automation?
Co-engineering Form-in-Place (FIPG) technology allows engineers to define gasket channel width and height during early design stages. This enables precise robotic deposition of conductive or environmental elastomers directly onto device shells, eliminating material waste, reducing overall housing size, and accelerating high-volume automated manufacturing.
