Tank cleaning robotic

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  • Able to work continuously, 24/7
  • First robot being certified for ATEX zone 0
  • Undeniable improvement for health, safety, environment and cleaning quality.

The KOKS ESOT-system, tank cleaning robotic, is designed for heavy industrial applications and is suitable for no-man entry tank maintenance in order to eliminate the need for personnel to enter a hazardous environment. ESOT is the acronym for equipment set for oil tank cleaning. The ESOT-system is utilized in combination with a vacuum truck for discharging and transporting fluid and hazardous substances, such as liquids, sludge, fats, oils, fuels and chemicals. Specially developed for working with hazardous and contaminated substances, the robot is certified for ATEX (Ex) zone 0. The transportable, vented cabin (TVC) is available in a standard container, an ATEX (Ex) zone 1 and zone 2 version and built in accordance with all applicable safety standards.

Do you have any questions about KOKS products or would you like to receive more information? If so, please contact the KOKS sales team via telephone number +31 (0) 72 540 66 99 or via e-mail request@koks.com.


The KOKS ESOT-system, tank cleaning robotic, enables its user to clean the ATEX zone 0 without a human entry of the ATEX zone 0 itself. Commonly used for the cleaning of black and white oil storage tanks, the health, safety environment and quality improvements are undeniable.


The powerful patented, abrasive, magnet tracks of the ATEX certified robot enable this versatile system to move with ease through the contaminated tank. From the vented cabin every movement of the robot can be controlled and seen on a HD television screen. The robot, which is connected to the vacuum truck, will enable large quantities of (fluid) substances to be processed in a short time and then be transported in accordance with current ASME/ ADR (CEOC) regulations. The user benefits from significant time savings and a huge reduction in cost.


The KOKS ESOT-robotic system can be fitted with various option kits that are appropriate for your needs and/or for industrial applications.


  • Reduction of cost.

  • Undeniable improvement for health, safety, environment and cleaning quality.

  • Easy control.

  • Ergonomic.

  • Built to the latest environmental and safety standards.

  • First robot being certified for ATEX zone 0.

  • No VOC in the ventilated cabin, providing safe conditions for the crew to operate without any need for additional protective gear.

  • Patented TVC cabin for ATEX zone 1 or 2.

  • Increase of operational efficiency.

  • Maximum grip on the floor by patented, abrasive, magnetic tracks.

  • Strong hydraulic power source.

  • Heavy duty hydraulically operated arm, creating 2,000 Nm in any direction.

  • Versatile robotic movements which enable it to move with ease through dense sludge.

  • Complete robot made of the highest grade of stainless steel AISI 316 grade; material no. 1.4404.

  • Compact.

  • Easy set up.

  • Able to work continuously, 24/7.

Designed and certified for

  • a 20 ft container, CSC certified.
  • operation in ATEX zone 0, 1G, IIB, T4 (robot).
  • international protection class IP66 (robotic system).


ADEX robot.
stainless steel AlSl 316 grade; material no. 1.4404.
ATEX zone 0.
EN 13463-1, EN13463-3, EN13463-5, EN13463-6, EN13463-8.
Max. range
100 m.
Traction force
3,000 N, measured on Fe plate, thickness 10 mm, covered in oil.
Speed in ATEX zone 0
1-10 m/min.
Operational depth
250 mm.
Ambient temperature
-10°C to 50°C.
84 pieces, fully rubberized, anti-static NBR rubber, material I 4165 LC, hardness up to 70 ShA.
Arm motion
35° in any direction.
Arm force
2,000 Nm.

Dimensions robot

approx. 1,800 mm.
approx. 545 mm.
approx. 400 mm.
Height with elevated cameras
approx. 900 mm.
24”/600 mm.
420 kg.


image transfer system.
ATEX zone 0, ATEX directive 2014/34/EU; EMC directive 2014/30/EU.
EN 50303, EN 60079-0, EN 60079-11, EN 60079-26.
520 lines, analog.
integrated LED lighting, max. 235 lux.

Transportable, vented cabin (TVC)

Basic TVC
standard sea container.
Ambient/storage temperature
-20°C to 40°C/-20°C to 50°C.
Max. wind force
6 Beaufort.
Dimensions for transport (l x w x h)
6,058 x 2,591 x 2,438 mm (without suction chimney).
Dimension at work (l x w x h)
6,058 x 2,438 x 6,910 mm (with suction chimney).
approx. 7,500 kg (incl. robot and all accessories).
Amount/ventilated and conditioned rooms
Supply voltage/rated current
3~400 V, TN-S, 50 Hz/40 A without residual current circuit breaker.
Max./average power consumption with ADEX robot
11,5 / 7,5 kW.
EN 60079-0+A11, EN 50381.
DVR recording system
for 4 camera feeds, 1 TB storage.
Control system
industrial computer enabling semiautomated cleaning program.
Additional accessories
full HD TV screen, 1,080 px, 32” (80 cm).
air conditioning and ventilation unit.
sensors for door, overpressure, air fl ow, fire emergencies.
control panel for robot.
steel shutters to protect the windows during transport.

Hydraulic power pack

70-100 bar.
Max. power supply
5 kW.
Aggregate connection
3x 400 V 50 Hz.
machinery directive 2006/42/EG, EN ISO 12100, EN ISO 614-1+A1, EN ISO 4413, EN 60204-1ED.2.
Noise level
max. 80 dB(A).

Need thorough advice?

We can imagine that you would like to know more about our products, the fields of application and our company.


Make an appointment without obligation to get to know us and our extensive range of industrial cleaning machines.


We will be more than willing to tell you why thousands of professionals worldwide trust KOKS Group and KOKS equipment.


You can contact us by calling +31 (0)72 540 66 99, by emailing info@koks.com or by filling in the contact form via the link below.


On working days we are available between 07.30 and 17.00 and we are happy to be of service.


As a producer and supplier of cleaning equipment, KOKS Group has gained a reputation as a reliable, innovative partner for the industrial sector.


KOKS is not only a strong player in the Netherlands and Europe, but our machines are finding their way around the world.


KOKS Group exists for 30 years and is a dynamic family business with seven specialized subsidiaries in the Netherlands, the Czech Republic, Saudi Arabia and the United States. The company also holds shares in rental organizations that operate in the Netherlands and the United Kingdom.