The Arrow-7M is the flagship self-propelled X-ray crawler in the Arrow product lineup, engineered for internal radiographic inspection of the largest-diameter pipelines used in the oil and gas industry. It is designed to carry the X-ray generator through the most expansive pipeline interiors, delivering precise radiation source positioning at each weld joint for comprehensive circumferential coverage. The state-of-the-art magnetic positioning system provides the highest level of stopping accuracy in the range, enabling flawless inspection sequences across the longest pipeline spreads.
As the most capable crawler in the Arrow series, the Arrow-7M is built for the most demanding applications — including major trunk lines, high-pressure gas transmission corridors, and strategic export pipelines. It sets the standard for performance, durability, and operational reliability in large-scale pipeline construction, making it the definitive choice for premier EPC contractors and national oil companies across Saudi Arabia, the UAE, Oman, Qatar, Kuwait, and Bahrain.
| Technical Specifications: | STRELA-7M Delivery Set: | ||
| Pipe diameters (mm) | 355÷1420 | Self-propelled CRAWLER unit | 1 |
| Maximum assembled crawler weight (kg) | 95 | X-ray generator 300 kV | 1 |
| Operating range (km) | 5 | Magnetic control system – transmitter – receiver | 1 |
| Travel speed (m/min) | 18 | ||
| Positioning accuracy (mm) | ±5 | ||
| Climbing angle | 40º | Battery pack | 1 |
| Turning radius | ≥7D | Charger set | 1 |
| Motor power (W) | 400 | Extended shaft set | 1 |
| Wheel drive 4WD | 6×4 | Cable set | 1 |
| Lithium battery (V, Ah) | 120/20 | Spare parts kit | 1 |
| Operating temperature range | -30º~ +50º | Transport case | 3 |
| Humidity | ≤90% | Equipment documentation (in English) | |
| X-ray tube (model) | XC36 | Passport | 1 |
| Tube voltage (kV) | 200÷300 | 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 × 3.5 | Sanitary-epidemiological certificate | 1 |
| Penetrating capacity Fe (mm), Agfa D7 film | 35 | 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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