
HUNTER – Advanced Magnetic Adhesion Inspection Crawler
Hunter is a modular remote access crawler designed for cost-effective NDT ultrasonic imaging of ferromagnetic structures such as storage tanks, pressure vessels, large diameter pipes and ship hulls without the need for rope access; thus, eliminating potential risks associated with manual inspections specifically in hazardous or difficult to access terrains.

NDT Inspection Tasks:
Hunter Packages
Key Benefits

Ease of use and deployment.
Hunters intuitive user interface allows it to be deployed and controlled by a single operator with ease. It only takes a few minutes to attach/detach the inspection packages (TOFD, B-SCAN and Corrosion mapping).
Provides Credible data.
Hunter significantly improves the quality of data collected as it moves over inspection surfaces, providing auditable results with the elimination of human error. Hunter’s ability to continuously record NDT signals also ensures instant reporting of signals in real time for data analysis by the operator.
Allows for frequent cost-effective inspection.
Hunter’s unique advantage is its ability to conduct both statutory inspection and Risk Based Inspection (RBI) guaranteeing cost savings for the asset owners. A low overall cost of inspection provides for cost effective asset management.
Typical Applications




Key Features
Durable
Multi NDT Capabilities.
Modular design.
Technical specifications



Technical Specification of the crawler only
Dimensions: | 410mm x 470mm x 200mm (L x W x H). |
Weight(crawler): | 27Kg. |
Adhesion: | Neodymium Magnetic wheels. |
Payload: | 100Kg. |
Drive: | Precision drive. |
Wheels: | High Wear resistant non-slip rubber coating. |
Speed: | 150mm/s max. |
Umbilical cable: | 30m. |
Pumping system: | 30m height. |
Power supply: | 110 AC-230AC, < 500W. |
Technical specification of NDT system Application
Probes: | Dual/single crystal probes from 1 to 10MHz. |
Transmitting pulses Voltage: | Up to 200 Volts. |
Digitizer: | 8bits at 100 MSPS. |
Filters: | 10/5/2.5 MHz broadband. |
High Pass Filters (-3bd): | 0.25, 0.5, 0.75, 1.0,2.5, 5, 10MHz |
Low Pass Filters (-3bd): | 1, 2.5, 5.0, 7.5, 10, 15, 20, 30 MHz |
Programmable gain: | 0 to 100dB’s. |
Visualisation: | A-scan, B-scan, C-scan. |
Application (Typical): | TOFD, B-SCAN, Corrosion Mapping. |