The Arrow-3M is a self-propelled X-ray crawler designed for internal radiographic inspection of small-diameter pipelines in the oil and gas industry. The unit transports the X-ray generator through the pipeline interior, enabling precise exposure positioning at each weld joint without the need for external radiation sources. Equipped with a magnetic positioning system, the Arrow-3M ensures accurate and repeatable alignment at target weld locations, significantly reducing inspection time and minimizing radiation exposure for on-site personnel.
Engineered for the smallest pipe diameters in the Arrow product range, the crawler delivers reliable performance in confined pipeline geometries commonly encountered in gathering lines, process piping, and small-bore infrastructure across oil and gas facilities in the Middle East. The Arrow-3M is an essential tool for field weld inspection programs where access is limited and operational efficiency is critical.
| Technical Specifications: | Arrow-3M Delivery Set: | ||
| Pipe diameters (mm) | 219÷426 | Self-propelled CRAWLER unit | 1 |
| Maximum assembled crawler weight (kg) | 70 | X-ray generator 160 kV | 1 |
| Operating range (km) | 5 | Magnetic control system – transmitter – receiver | 1 |
| Travel speed (m/min) | 13 | ||
| Positioning accuracy (mm) | ±5 | ||
| Climbing angle | 30º | Battery pack | 1 |
| Turning radius | ≥10D | Charger set | 1 |
| Motor power (W) | 400 | Extended shaft set | 1 |
| Wheel drive RWD | 6×2 | Cable set | 1 |
| Rechargeable batteries (V, Ah) | 120/7 | Spare parts kit | 1 |
| Operating temperature range | -30º~ +50º | Transport case | 3 |
| Humidity | ≤90% | Equipment documentation (in English) | |
| X-ray tube (model) | XC31A | Passport | 1 |
| Tube voltage (kV) | 60÷160 | Operation manual | 1 |
| Radiation beam (panoramic) | 40º × 360º | Warranty card (12 months) | 1 |
| Automatic tube current (mA) | 3 to 5 | Customs Union / GOST-R Declaration of Conformity | 1/1 |
| Focal spot (mm) | 1.0 × 2.0 | Sanitary-epidemiological certificate | 1 |
| Penetrating capacity Fe (mm), Agfa D7 film | 20 | ISO9001 Certificate | 1/1 |
The working structure is divided into three lightweight units (crawler, battery, generator), making assembly convenient for two people.
The model range (Arrow 3M–7M) allows working with pipelines from 219 to 1420 mm.
Forced air flow to the generator while driving reduces downtime between exposures.
The remote magnetic positioning system ensures stopping accuracy with an error of up to 0.5 mm with a wall thickness of up to 35 mm.
Mitsubishi Electric controllers guarantee stable operation and trouble-free automation.
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