Magnetic sectors

Magnetic sectors ensure the precise measurement of the angular position and speed of rotating systems using magnetic encoding.
They utilise magnetic ring technology: an elastomer filled with magnetic particles bonded to a metal insert, ensuring position and speed control in the most demanding environments (mud, dust, sand, salt, oil, grease, etc.) at very high speeds and acceleration.
Magnetic sectors are suitable for applications that do not require 360° angular coverage, thereby reducing overall size and costs.

Main Benefits

Precise, high-resolution signal for position and speed sensors
High magnetic field strength for demanding positioning systems
Partial angular coverage, tailored to the actual requirements of the application
Customised magnetic pattern and pole configuration
Robustness: durability and wear resistance in harsh environments: dust, mud, sand, salt, oils and grease

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Applications

High-precision magnetic sensors
Positioning systems
Angular position measurement in rotating systems
Speed measurement using magnetic encoding
Rotors and rotating components under extreme conditions

Characteristics

Elastomer filled with magnetic particles, bonded to a metal insert
Anisotropic ferrite technology; rare-earth solutions for the highest magnetic fields
Compounds: NBR (-40 to +140 °C) and HNBR (up to 150 °C)
Filler content enabling a hardness of up to 50 Shore D
Remanence up to Br = 3500 G, coercive field 240 kA/m
Single or multiple magnetic tracks, with singularity or dipole
Customised magnetic pattern, single or multiple magnetic tracks and customised pole configuration
Resistance to impact, vibration, oils and greases

Our strengths

Bonding by chemical means rather than adhesive: superior performance in harsh environments
Optimised orientation of ferrite particles to maximise the magnetic field
Bespoke development of the magnetic pattern and pole configuration
Definition of the recommended read zone based on the magnetic profile
In-house formulation and manufacture of robust materials
EN 9100-certified factory, traceability and certificates of conformity