WheelScan 5

Automatic Wheel Inspection System

The WHEELSCAN 5 is widely accepted throughput the world as a rapid and reliable means of maintaining the integrity of aircraft wheels. With a built in rotary bolthole inspection and electrical conductivity measurement capability, this instrument allows a complete wheel to be inspected.

The WHEELSCAN 5 is being used in the aerospace industry by aircraft manufacturers and airlines.


  • Reliability
    Uses standard motion control system components for longevity. The unit has a modular construction for easy replacement of components. The ball-screw driven actuators have a standard life rating in excess of 10,000 km of travel, equivalent to approximately 10 million wheel inspection cycles!
  • Accurate
    With encoders on all axis repeat, positioning of scan parameters is guaranteed. The AutoTrak Plus, two-dimensional bi-directional contour following system, ensures that the probe travel path covers 100% of the surface. The wheel may be tested flange up, flange down, fully assembled flange to flange and can handle complex profiles (e.g. racing car wheels).
  • Minimising User Errors
    The WheelScan 5 provides a variety of methods for entering and retrieving data. The aim of the unit is to allow the experienced operator total flexibility when setting up precision inspections. The ability to “walk” the equipment through the tests and take settings from measurements are absolutely precise for each type of wheel. Once the data has been set up it can be stored digitally for easy recall in the future. The recall can even be automated so that the total test can be recalled with the single scan of a bar code, and input errors such as the operator ID and Job References can also be input by bar code. This removes the need for manual data re-keying, the most frequent cause of data error in comparable systems. Also, a key switch with user/supervisor mode enables the operator to be prohibited from making adjustments.

  • WhIRS - Wheel Inspection Reporting System
    The WheelScan 5 has different levels of reporting to allow you to fulfil all your inspection requirements. Real Time charts are built on the EL display, allowing an easy and convenient method of checking the test. An instant thermal strip chart can provide an in-unit report for each inspection, whilst the Offline Data Analysis that can be provided on a linked PC can print a full colour report complete with all inspection parameters. This can be printed from a laptop situated right next to the unit, or from a PC situated on another continent!

  • Versatile Inspection
    Versatile Inspection
    The requirements of Aircraft Wheel Inspection are constantly being improved and becoming more varied. Non-standard wheels and different styles of inspection are being investigated. WheelScan 5 is prepared for all these developments.
    Very small wheels are a major problem for similar wheel inspection rigs because of the inability to clamp, and may require tailor made hardware. The SLIC can easily cope with this. New wheels may demand internal inspections. Again the unique SLIC Clamping system has allowed the development of an arm to facilitate this.
    As the effect of heat damage on wheels becomes more clearly understood the provision of a conductivity measurement system with the unit allows evaluation of this. A dynamic bolt-hole scanner can also provide valuable information about any conditions that might exist in and around these potential stress raisers.
  • Safe Inspections
    Any inspection must be safe for the operator and for the component being inspected. The WheelScan 5 uses the unique SLIC device (Secure Lift, Inertial Centring) to lift and centre the wheel. This ensures that the component cannot be ‘clamped-up’ eccentrically, a risk at high RPM.
    The unit is also designed so that all control interfaces are located on the front of the unit, which removes the requirement to lean over the inspection area.
    Furthermore, the equipment is not vulnerable to damage by wheels being positioned for inspection as all instrumentation is safely below roller height.
  • Probe
    Absolute probe system. Probes are as standard 6 or 9.5 mm diameter with a choice of frequencies from 100k, 200k (standard), 500k and 1.5 M Hz. Other diameters and frequencies are available on request.
  • Component Size
    Scan Height: 415 mm (16.3 inches)
    Diameter range: 0-865 mm (35.5 inches)
    Max Weight: 250 kg (114 lbs)
  • Lift Ram Stroke
    250 mm (9.8 inches)
  • Operator Interface
    IP67 protection.
  • Electro-luminescent display
    (320*240 pixel), rotary control for parameter setting. Push buttons for commonly used functions. Emergency Stop.
  • Eddy Current Functionality
    Uses well proven Phasec 2d Eddy Current unit. In addition to the very accurate WheelScan 5 test, this provides the option of Conductivity, Rotary Bolt hole inspection and Dual Frequency modes, amongst others.
  • Probe Motion Speed
    The probe X/Y motion will travel at up to 150 mm-1 (6”/second) for the motion to and from the wheel.
  • Wheel handling
    Roller table and 215 mm (8.5”) stroke lift ram with position encoder locates SLIC adaptor on hub.
  • SLIC
    The Secure Lift Inertial Centring (SLIC) adaptor is an automatic centring can that grips securely on the wheel hub. 70 to 230 mm (2¾ - 9”) hub internal diameters accepted. Note smaller wheels may be gripped on the rim.
  • Inspection Speeds
    Surface inspection speed is 2 ms-1 (78 inches/second) maximum (limited to 120 rpm). Scan helix may be set in 0.1 mm (4 mil) steps from 0 to 25 mm (1 inch).

  • Scan Direction
    Bottom to top or top to bottom

  • AutoTrak Plus
    Ensures the probe maintains a constant pressure normal to the wheel surface whilst scanning parallel to the surface at the required helix.
  • Data Recording
    57 mm wide thermal chart (optional) or paper less recording and review system.
  • Data Storage
    Unlimited capacity for test parameter storage. Storage of data recorded during test (paper less recording).
  • Options
    Electrical conductivity. Rotary probe.
    Outputs
    Standard RS232 via 5 way Lemo
  • PC Connectivity
    Ethernet 10/100
  • Maintenance
    The unit has a modular construction for easy exchange of parts. Major wear parts are sealed units for maximum longevity. XY mechanism has expected life in excess of 100,000 kilometres (Built in prompts for routine maintenance.)
  • Weight
    250 kg (550 lbs) or heavier dependant on accessories.
  • Frame
    Welded steel tube
  • Dimensions
    914 x 870 x 800 mm (36 x 34 x 31½ inches)
  • Power
    90 to 264 VAC, 47 - 63 Hz, 350 watts
    Important note. This product is covered by one or more patents.