FLUX GMI-ANG-250 Bearingless GMI® Absolute Angle Encoder (250 mm OD / 200 mm Hollow Bore)

Technical Overview: GMI-ANG-250

The FLUX GMI-ANG-250 is a bearingless Giant Magneto-Impedance (GMI®) absolute axial angle encoder engineered by FLUX GmbH for ultra-high-precision rotary axes requiring optical-grade angular accuracy alongside full IP67 environmental immunity. Featuring a 250 mm outer diameter, a generous 200 mm hollow through-bore, and a compact 10.8 mm total stack height, the GMI-ANG-250 combines patented GMI® holistic multi-head magnetic scanning with a rugged stainless steel (ST) housing that resists oil, cutting fluids, dust, and condensation.

Capable of single-turn absolute resolutions Up to 25-bit with an intrinsical accuracy of ±4 arcsec (±0.0011°) (and ±3 arcsec (±0.0008°) with Option C), the GMI-ANG-250 operates across a wide 4.35 VDC to 36 VDC input supply (AV) up to 2,000 rpm with zero mechanical wear. Unlike optical glass-scale encoders that suffer catastrophic signal loss from condensation, oil mist, or mechanical shock—and unlike conventional Hall-effect magnetic sensors limited by magnetic hysteresis—FLUX patented Giant Magneto-Impedance (GMI®) physics couples amorphous ferromagnetic micro-wires with 360° holistic rotor scanning to cancel radial eccentricity errors automatically.

Mechanically engineered for compact axial envelopes (250 mm envelope, frameless geometry, 10.8 mm), the GMI-ANG-250 installs directly onto hollow-shaft actuators, rotary tables, and gimbals without dedicated encoder bearings or wear-prone couplings. Supplied across Great Britain by TORQUETY LTD (UK Company No. 17124704, Covent Garden, London WC2H 9JQ & Oxford Engineering Desk +44 1865 679185), every unit is backed by local UK application engineering, 3D STEP CAD integration review, and tailored commercial quotations in Pounds Sterling (GBP).