Roundit EMI FMJ: High-Performance EMI Shielding for Cable Bundles
ROUNDIT® EMI FMJ (Full Metal Jacket) is a wrap sleeve specially designed for excellent EMI shielding performance of wire and cable bundles. Made from PPS monofilaments combined with nickel-plated copper, this sleeve provides reliable protection against electromagnetic interference.
Easy Installation Thanks to Self-Wrap Feature
The unique self-wrap feature of Roundit EMI FMJ allows for quick and easy installation and removal. This design is ideal for assembly and maintenance, as it can be effortlessly opened during cable inspection or servicing.
Reliable Protection of Breakout Areas
Roundit EMI FMJ effectively protects breakout areas and ensures consistent EMI shielding regardless of the cable diameter within the recommended application range. This guarantees a stable and high level of shielding.
Versatile Applications in Demanding Industries
Thanks to its robust construction and unique metal insert, Roundit EMI FMJ is compatible with existing clamping solutions. This makes the product suitable for a wide range of cable and wire diameters and widely applicable in the aerospace, aviation, and military sectors.

Features Federal Mogul Roundit EMI FMJ
Product Overview Roundit EMI FMJ
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| Part Number | Bundle Diameter | Max Weight g/m | Packaging |
|---|---|---|---|
| ROUNDIT-EMI-FMJ-5mm-8 | 1 – 5mm | 30 grams | 250m |
| ROUNDIT-EMI-FMJ-8mm-8 | 5 – 8mm | 40 grams | 250m |
| ROUNDIT-EMI-FMJ-13mm-8 | 8 – 13mm | 60 grams | 175m |
| ROUNDIT-EMI-FMJ-19mm-8 | 13 – 19mm | 85 grams | 125m |
| ROUNDIT-EMI-FMJ-25mm-8 | 19 – 25mm | 107 grams | 75m |
| ROUNDIT-EMI-FMJ-32mm-8 | 25 – 32mm | 144 grams | 50m |
| ROUNDIT-EMI-FMJ-38mm-8 | 32 – 38mm | 169 grams | 35m |
Certifications/Inspections Roundit EMI FMJ
Certifications/Inspections Roundit EMI FMJ
| Options | Test | Result |
|---|---|---|
| Rapid Temperature Change | EN 6059-308 | Passed |
| Flammability/Smoke/Toxicity | ABD 031 & FAR 25 § 853 | Compliant |
| Dynamic Cutting | EN 6059 Part 405 | Passed |
| Bending | EN 6059 Part 402 | Passed |
| Vibration | EN 6059 Part 406 | Passed |
| Fluid Resistance – Aircraft Fuel JP4 (NATO F44) – Hydraulic Fluid Skydrol 500 B4 – Mineral Oil MIL-L-7870A – Synthetic Oil MIL-L-23699 – Cleaning Fluid MIL-L-87936 – De-icing Fluid MIL-A-8243 |
EN 6059-33 | Good Resistance |
| Salt Spray Resistance | EN 2591-307 for 96h | Passed |
| Mold Growth | EN 6059 Part 306 | Passed |
| Resistance Measurement | EN 3475-301 | Ro max = 5mΩ all sizes except 5 = 6mΩ |
| Transfer Impedance | IEC 62153-4-3 Triaxial method | Lt = 2 nH Passed |
| Light | EN 2591-214 Waveform 1 5KA |
Passed |
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