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The ADWEL Robotic Inspection Vehicle enables remote scanning of the stator core of large motors and generators with or without the rotor in place. Controlled from outside the stator bore, the ADWEL RIV provides easier and more efficient testing of stator lamination insulation when used with ADWEL’s EL CID.

The RIV can also carry other lightweight transducers for stator inspection such as slot wedge tightness probes (ADWEL WTD) and allows for visual inspection with ADWEL’s CCTV Camera System.

The RIV sticks to the stator core by magnets and advances orreverses at various speeds. A guidance system detects the edges of the stator teeth allowing the RIV to automatically follow a slot.


  • Auto-stop setting ensures RIV stops at preset distance
  • Control unit outside stator core connects via single multi-core cable for power and signals
  • Can be configured for various slot widths
  • Curvature adjustment for various core diameters
  • Low height (30mm) allows rotor-in-place testing
  • Magnetically self-supporting on steel surface
  • Automatically detects the edges of the stator teeth to follow a straight line
  • Side plates give additional guidance when wedges are recessed or when wedges and coils are removed
  • Distance measurement via encoder wheel


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Low Profile Robotic System for Stator Core Testing and Inspection

Model RIV-702

  • Fits into the air-gap for rotor-in-place testing
  • Carries multiple modules: EL CID, Wedge Tightness Detector, Camera
  • Tests faster with reduced human fatigue and stress
  • Enables one person testing
  • Follws a straight line along the stator teeth
  • Scans the stator surface with optional ADWEL Camera


Height 30mm (11/4″) (excluding payload)
Overall Length 350mm with Chattock Holders
Overall Width Adjustable from 18 – 30cm (7″ – 113/4″)
Maximum Payload 2 kg in vertical climb mode
Slot Pitch 65mm – 210mm (21/2″ – 81/4″)
Guidance Automatic using magnetic sensors
Distance Measurement Optical encoder wheel 0 – 9.99m
Tractor Speeds Nominally 2, 4 or 6 m/min.
Instrument Weight 10.5 kg (23 lb.)
Controls Speed, direction and auto-stop distance
Outputs X Axis pulses for EL CID
Power Requirement 85-264 V, 50/60 Hz (<50VA) CAT II
Operating Temperature 0° to +50°C (+32° to +122°F)
Case Dimension 55 x 72 x 30cm (213/4″ x 281/2″ x 12″)
Weight 29 kg (64 lb.)
Standards EN61010-1, EN61326, EC Marked

*Specifications are subject to change without notice.