In modern industrial automation systems, Permanent Magnetic Chuck is an important clamping and fixing device and is widely used in CNC machine tools, grinding machines, milling machines and other equipment, used to clamp ferromagnetic workpieces and improve processing accuracy and efficiency. It usually integrates coil wire groups and control circuits inside, which plays a key role in electronically controlled permanent magnet technology.
The working environment of the coil is often accompanied by complex conditions such as high temperature, high humidity, high dust or coolant seepage. Therefore, high-performance potting protection can not only improve the stability of the equipment, but also greatly extend the service life.
Permanent magnet suction cup coil filling seal
Difficulties in potting protection of permanent magnet suction cup coil
In practical applications, permanent magnet suction cup coil filling covers face the following technical challenges:
High adhesion requirements: it needs to be well combined with a variety of substrates such as aluminum shell, stainless steel base plate, plastic bracket, etc.;
Complex structure: the coil windings are compact, and the potting needs to have excellent fluidity to avoid gaps;
Strong electrical insulation: It is necessary to ensure that there is no leakage or breakdown under long-term working voltage;
Strong environmental tolerance: waterproof, moisture-proof, oil-fouling, and corrosion-proof;
High and low temperature resistance: The equipment must maintain physical stability during long-term operation or cold start;
Fire-proof and flame retardant: To avoid fire caused by short circuit or overheating, the potting material must have flame retardant properties.
How to achieve reliable packaging, waterproof insulation, dustproof and leakage protection of coils? A professional potting material is crucial!
Recommended solution: SIPC 1816 A/B Silicone Potting Gel
To meet the above needs, ELAPLUS recommends the use of SIPC 1816 A/B two-component silicone potting adhesive. This is a high-performance potting material specially developed for electronic coil devices. It has excellent physical and electrical properties and is especially suitable for potting of components such as permanent magnet suction cups, relays, and sensors with complex structures and high reliability requirements.
Product Highlights:
Functional Dimension SIPC 1816 A/B Performance
Adhesion: Good adhesion to metals, plastics and other substrates, no need for primer
Flowability Low viscosity design (2300~3200cps after mixing), deep self-leveling filling
Curing method: Condensation and dealcoholization type, room temperature curing, adapting to different potting process needs
Electrical performance Dielectric strength ≥18kV/mm, volume resistance 1.1×10¹⁴ Ω·cm, low loss
Environmental performance: High and low temperature resistance (-50℃~150℃), humidity resistance, dust resistance, leakage resistance, corrosion resistance
Safety performance Flame retardant grade UL 94 V-0 meets industrial safety requirements
Mechanical properties Shore A hardness 45~55, low shrinkage rate, no stress cracking after potting
Application record: Permanent magnet suction cup coil packaging effect
After potting, a flexible elastomer is formed to tightly cover the coil winding;
Effectively prevent coil corrosion, moisture, short circuit and other faults;
Improve the thermal conductivity between the coil and the shell, which is conducive to heat dissipation;
External water-cooled/oil-cooled environment no longer affects the life of the coil;
Avoid loosening and falling off caused by vibration and extend the equipment maintenance cycle.
Reliability and durability are increasingly becoming the core competitiveness of industrial equipment
