R4 Robotics Roller

at work inside an Oil Tanker

​​​​​Oil, Gas & Chemical


The unique design of the R4 Roller models allow the drone to approach a target rolling on the floor or any flat surface.  Additionally, the roller’s structure also serves as a protective cage, providing protection for the drone and allowing for inspections in tight quarters or up vertical surfaces, with no fear of collision.

R4 Explosion Protected technologies are developed and certified for the Oil, Gas and Chemical Industries to scout in heightened danger zones  (ATEX Zone 2) to reduce risk of human life during inspection of highly flammable or combustable environments.

In cases where inspections are necessary in heightened danger zones (Atmospheric Explosion – ATEX Standard Zone II), R4 offers the LE4-8X Dual Atex Model in conjunction with Xamen Technologies. This craft has many (essentially spark suppression) features- incl. wood (no static) propellers, sealed motors, etc. , and dual motors and parachutes for soft (no spark) landing in case of motor failure.

For applications inside of metal tanks, R4 has developed transmission and receiving technologies to deal with most of the intractable myriad RF reflections of the control and video signals.


Our R4 Roller can be flown inside of extremely large holding tanks, transport tanks and more in extreme darkness! Our inspection drones can be flown from inside the tank or outside. With various camera options, you can check for leaks, structural defects, weaknesses and more.

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