System T

Tanks and voids: Inspection and documentation

Inspection disclose the asset integrity status. System T high vertical access and flexibility is ideal for making detailed video documentation as well as measurement mapping over large surface areas.

Tanks and voids: Pressure water cleaning

Offshore and marine environments often require surface desalting by freshwater washing before treatment can start. Our robots handle pressure washing.

Tanks and voids: blast cleaning - sandblasting / UHP

Robotic sandblasting makes the process go consistently faster – safer – better and produces high-quality results. And it’s all documented on video.

System T Features

System T is a portable robotic system. The operator console is located in a safe area, while the robot is located out in the work area, its electronic enclosure may be placed wherever there is a location for a pallet footprint.

System T is remote controlled from a safe area by the operator, who uses real-time video for the robotic tool process control. There are also basic auto functions that relieve the operator during routine operations along large surface areas.


  • 7-dof electrical robot system.
  • Module basis for rapid transport through manholes and into new work areas.
  • Extensive physical range (length-width-height 5-7-7 meters) – easily extended for individual project specs.
  • Lightweight structure 230 kg for standard range edition.
  • Assembly within 30 minutes.
  • Atex zone 2 approved system, Atex zone 1 prepared.

Work Speed

How fast does the robot work?

The robot arm replaces the traditional sandblasting operator in the work area. While it uses the same blasting equipment as in manual performance, the robot handles any tool size, even those that are a greal deal larger than any used in manual operation. The robot works at top speed and is limited only by the applied blasting equipments capacity. A more detailed analysis about how fast the robot can operate, and variables that are influence its speed, may be found here.

Basically, while in operation, the proven capability for System T has reached a peak of 6 square meters of sandblasted surface pr hour of work when fullblasting a surface area under the following conditions: 9mm venturi nozzle at 8 bar, blast media alu oxide grit, average 400um coating film. Several variables may reduce this speed, including the coating film thickness and type, suboptimal blasting media, operator skill level, complex geometries, etc. On the other hand, there are variables capable of increasing the speed, such as using a larger nozzle, and/or nozzles in parallel.


Robotic surface treatment eliminates the HSE challenges of traditional manual operation. When looking at sandblasting, typical challenges performing manual operation are:

  • Noise – 115-120dBA measured sound pressure level in tanks, at the sandblasting operators ear position, resulting in a work permit at the best of maximum 2 hours pr day.
  • Dust – risk of breathing toxic dust during work and movement in and out of very dusty environment,
  • Rescue – very difficult rescue of personnel from confined spaces with narrrow openings and required vertical movements.

These work conditions are no longer required under surface preparation. During the early introduction of this technology in 2017, Surface Dynamics’ robots has already performed more than 800 hours of sandblasting work inside ballast tanks, so that the sandblasting operator now instead can control and do the same job from outside the tank.

Robotic Surface Treatment – increased work efficiency