A-30 — Starting selection brief Manufacturer: Boya Gongdao A 35 kg crawler inspection robot that swims, rolls onto a wall and crawls along it, for close inspection of tanks, pools, pipes and structure surfaces to 100 m. Vehicle weight: 35 kg Depth rating: 100 m Payload: 3 kgf (test method to confirm) Dimensions: 400 × 400 × 300 mm Thrusters: 6 (2 horizontal vector + 4 vertical) Camera: 1080p; ±90° tilt Power: External tethered supply Configuration note: The manufacturer designs the A-30 for one-person deployment and lists compatibility with a line-tracking system. The 3 kgf payload is expressed as a force; confirm how it was measured. NDT probes, their certification and the inspection procedure are specified per project. Confirm current specifications and delivered scope with the manufacturer before purchase.