Explosion-proof Electromagnetic Coil Core
FRING’s explosion-proof electromagnetic coil cores are designed for solenoid valves and actuators in hazardous environments (Ex d, Ex e). The powder metallurgy core provides high magnetic permeability while eliminating spark-inducing sharp edges, meeting ATEX and IECEx requirements for mining and petrochemical applications.
Main Datasheet
Applicable Specifications
Stringent Standards, Precision Specifications, Ultimate Reliability
Design & Quality Standards
ATEX Directive 2014/34/EU, IECEx, ISO 80079, ISO 9001
Standard Material Grades
FR-EX-50Ni (50% Ni), FR-EX-80Ni (80% Ni)
Typical Magnetic Properties
Maximum Permeability ≥1000 Saturation Flux Density ≥1.5 T Coercivity ≤100 A/m
Typical Physical Properties
Density 7.2 – 7.4 g/cm³ Electrical Resistivity ≥40 µΩ·m Operating Temperature -40°C to 150°C
Net-Shape Dimensional Tolerances
OD/ID: ±0.05 mm Height: ±0.05 mm Edge Radius: ≥0.2 mm (no sharp edges)
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MOQ: 500–2000 pcs (Negotiable depending on part design and volume)
Lead Time: 2–3 weeks for standard parts, 3–5 weeks for custom parts
OEM/ODM: Available
Engineering Support: Yes (Drawing review + Material selection + Magnetic/Mechanical parameter optimization)
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