FLUX GMI-ROT-069 Frameless GMI® Absolute Rotary Encoder (69 mm OD / 40.20 mm Bore)

Technical Overview: GMI-ROT-069

The FLUX GMI-ROT-069 is a compact, low-profile frameless Giant Magneto-Impedance (GMI®) absolute rotary encoder designed for high-speed hollow-shaft servo actuators, collaborative robotic joints, and direct-drive frameless motors. Measuring 69 mm in outer diameter with a 40.20 mm hollow shaft bore and an installed axial thickness of just 7.8 mm (8.0 mm installed), the GMI-ROT-069 provides maintenance-free non-contact sensing sealed to IP67.

Operating at continuous speeds up to 6,000 rpm across a 4.35 VDC to 36 VDC input voltage range, the GMI-ROT-069 delivers Up to 22-bit single-turn resolution and ±36 arcsec (±0.0100°) standard accuracy (±29 arcsec (±0.0081°) with High-Accuracy Option C). Available through 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 (69 mm envelope, frameless geometry, low axial stack), the GMI-ROT-069 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).