Applications of Barlog Plastics KEBABLEND M 76/67 PA12 for Plastic Bonded Magnets in Industrial Manufacturing

Barlog Plastics KEBABLEND M 76/67 PA12 plays a critical role in several industrial sectors that require precision plastic bonded magnets. By delivering consistent dispersal, magnetic filler compatibility, and specialized formulation control, our material supports the high-level requirements of advanced component manufacturing. The application scenarios outlined below reflect real downstream usage in focused sectors where process reliability, compliance, and differentiated product performance matter.

1. Automotive Electric Motor Rotors and Sensors

Automotive Tier 1 suppliers use this polyamide matrix in over-molded stators, rotors, and various sensor assemblies where dimensional stability and magnetic orientation must meet electric powertrain and chassis control requirements. Processors select formulations that guarantee stable mechanical and thermal performance even under repeated thermal cycling and vibration typical in engine compartments, steering systems, and wheel speed sensors.

Industry compliance standards

• IATF 16949:2016 (Automotive Quality Management Standard)
• ISO 11452-2:2021 (Road vehicles — Component electromagnetic compatibility — Part 2: Absorber-lined shielded enclosure)
• IEC 60068-2-14 (Environmental Testing — Test N: Change of Temperature)

Typical usage ratio

• Between 50-80% by weight of magnetic filler, with PA12 resin as the matrix; adjustment basis: targeted magnetic flux density versus moldability requirements for different sensor or rotor geometries.

Downstream process integration

• Material is introduced during injection molding or compression molding, where premixed compound pellets are plasticized and shaped into the final component while aligning magnetic particles in the desired orientation using an applied magnetic field during the mold cycle.

Final product types

• ABS wheel speed sensors
• Pulse encoders for camshaft/crankshaft sensing
• Electric motor over-molded rotors for seat adjustment or electric steering

2. Household Appliance Motor Components

This material enables manufacturing compact, precise magnet components for brushless DC and synchronous motors deployed in major appliances such as washing machines, refrigerators, and HVAC systems. OEMs require reliable thermoplastic magnets to maintain long product lifecycles under repeated heating and cooling cycles, moisture, and detergents exposure.

Industry compliance standards

• IEC 60335-1 (Household and Similar Electrical Appliances - Safety)
• UL 1004-1 (Rotating Electrical Machines - General Requirements)
• RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)

Typical usage ratio

• Between 60-75% magnetic powder by total compound mass, depending on desired magnetic performance and molding precision for small batch versus mass production motor parts.

Downstream process integration

• Material is dosed directly into the hopper of injection molding machines fitted with heated barrels for the molding of magnet inserts; post-molding, components may undergo magnetization before assembly into finished motor units.

Final product types

• Polymer hybrid rotor rings for washing machine motors
• Refrigeration compressor motor magnets
• HVAC fan rotor inserts

3. Power Tools and Cordless Equipment Assemblies

Manufacturers of cordless power tools and garden equipment employ this PA12-based compound in injection-molded anisotropic magnets required for sensorless brushless motors. Consistent mold flow and controlled shrinkage properties reduce part rejection rates and ensure precise assembly tolerances, which are crucial in fast-turnover tool production lines.

Industry compliance standards

• EN 60745-1 (Hand-held Motor-operated Electric Tools – Safety)
• ANSI/OPEI B175.1 (Outdoor Power Equipment – Safety)
• REACH Regulation (EC) No 1907/2006 (Registration, Evaluation, Authorisation and Restriction of Chemicals)

Typical usage ratio

• 55-70% magnetic filler by weight, with specific ratio set to balance maximum energy product and required flow performance for thin-walled motor component molding.

Downstream process integration

• Material compounds are introduced as ready-to-use granules in automated injection units for complex, multi-cavity tools; in-line magnetization follows before integration into fast-assembly production lines.

Final product types

• Rotor magnets for cordless drills
• Magnetic rings for chainsaw and trimmer motors
• Sensor disks for tool speed regulation electronics

4. Industrial Automation Sensors and Encoders

Position sensing and rotary encoding elements in factory automation systems depend on dimensionally accurate bonded magnets for feedback on speed, positioning, or angle. The material’s chemical stability and fine particle dispersion minimize hysteresis and signal drift, maintaining reliable operation over millions of cycles in harsh industrial settings.

Industry compliance standards

• ISO 13849-1 (Safety of Machinery – Safety-related Parts of Control Systems)
• IEC 60529 (Degrees of Protection Provided by Enclosures - IP Code) for environmental resistance
• IEC 60068-2-6 (Vibration, sinusoidal – Test Fc)

Typical usage ratio

• 65-78% magnetic powder by mass, selected for high magnetic remanence required in non-contact sensor applications; ratio optimization based on sensor type (contactless vs. gear tooth sensors).

Downstream process integration

• Material feeds automated precision injection units forming small, intricately shaped magnet components, often co-molded directly onto shafts or sensor carriers; post-molding, products undergo inline magnetization and are tested for key magnetic attributes prior to assembly.

Final product types

• Rotary encoder rings
• Linear position sensor magnet strips
• Industrial servo drive feedback magnets

5. Energy Meter and Instrumentation Components

Utility device OEMs deploy this material for fabricating precise, stable magnets used within single-phase and polyphase electricity meters. Consistency in the polymer matrix supports very low drift in magnetic properties required for meter calibration conformity over prolonged service intervals. Tight control over additive levels prevents property loss from environmental humidity or temperature cycling typical of meter installations.

Industry compliance standards

• IEC 62053-21 (Electricity metering equipment – Particular requirements)
• EN 50470-1/3 (Electricity metering equipment - Part 1/3: General requirements/Test requirements)
• IEC 60068-2-30 (Environmental testing – Test Db: Damp heat, cyclic)

Typical usage ratio

• 60-75% magnetic filler by weight, adjusted based on required meter accuracy class and size of magnet-affected mechanism inside the sealed enclosure.

Downstream process integration

• Formulation is introduced as ready-compounded pellets into micro-injection molding machines for producing tight-tolerance disc, rod, or gear-shaped magnets; components undergo 100% inline demagnetization and field uniformity inspection prior to integration into the final metering system.

Final product types

• Ferrite-polymer composite measuring wheels
• Multi-layer sensor actuators
• Rotary element magnets for sealed meter mechanisms

6. Electric Bike and Scooter Motor Assemblies

Manufacturers serving the e-mobility sector use this specialty resin for producing high-precision, molded magnets required in hub and mid-drive motors. The material supports high torque demands and encased assembly formats, which are typical for electric bicycles and compact urban mobility vehicles, preserving magnetic integrity through repeated starts, stops, and environmental exposure.

Industry compliance standards

• EN 15194 (Cycles – Electrically assisted cycles – EPAC bicycles)
• ISO 4210-2 (Cycles – Safety requirements for bicycles – Part 2: Requirements for city and trekking bicycles)
• IEC 60068-2-38 (Composite temperature/humidity cyclical test)

Typical usage ratio

• 65-80% by weight magnetic loading, selected for high energy magnet composition needed for high-output traction motor rotors and sensor discs; fine-tuning carried out according to end-user torque and acceleration profiles.

Downstream process integration

• Intake as premixed granules for thin-wall ring or multi-segment arc magnet injection molding; post-molding, automated in-line magnetization step followed by weathering and mechanical tests prior to final assembly into e-drive units.

Final product types

• Hub motor segmented magnets
• Hall-Effect sensor targets
• Electric assist bicycle rotor ring magnets