N-MER Vacuum Robot
N-MER is Unibose’s flagship No-Man Entry robot for confined space tank cleaning. It is built for large oil and gas tank farms and heavy industrial assets, handling liquids, sludge, oils, fuels, chemicals, and acids without sending a single person inside.
Handles viscosities up to 100,000+ cSt and 300–1200 mm sludge height
Lowers compliance needs by restricting man-entry
Operates beyond human atmospheric limits
Designed for continuous operation in real tank conditions, N-MER sets a new benchmark for safety, speed, and cost-efficiency in hazardous tank cleaning across India and international markets.
Zero
Life Loss
Designed for 600mm manway entry.
Cuts downtime by up to 40%
Reduces OPEX by up to 45%
Asia’s 1st EU ATEX Zone-0 (IIC) certified robot
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Engineered as One Integrated ATEX-Compliant Ecosystem
Unibose engineers a certified, fully integrated ATEX Zone-0 ecosystem—robotic platform, onboard pump module, vision systems, hydraulic power units, and intrinsically safe lighting—designed to operate as one compliant system in hazardous industrial environments.
We deliver customizable ATEX Zone-1 certified containers (20-ft or 10-ft), engineered to match tank characteristics and application needs, housing the control room and automated hose-handling assemblies for safe, reliable, high-performance deployments where Zone-0 compliance is mandatory.
Why N-MER
N-MER eliminates human entry into toxic, oxygen-deficient tanks with high-viscosity crude sludge and 300–1200 mm settled layers.
Engineered for paraffinic, waxy, BS&W-heavy sludge, it delivers continuous cleaning with ATEX Zone-0 design, 360° vision, dual-line hydraulics, and a patented first of its kind onboard pump.
Stringent International Standards
Remote control of robots.
Wide range of accessories.
No Man Entry Remote
Highly effective safety
Assemblies
- ATEX Zone-0 vision kit
- High-volume suction interface
- Cutter Stock Infusion system
- Revolutionary Onboard Pump
- High Pressure Rotary jet cleaning head
- Hardened sludge cutter
- Highly Pressure Rotary Surface cleaner
Engineering Innovation You Can Trust Inside Zone-0
World's First Atex Zone-0 Onboard Pump System
Pumps 10–12 m³/hr, reducing tank downtime by an additional 30%.
Self-Cleaning 360° Vision System
Maintains uninterrupted 360 degree visibility with ATEX Zone-0 cameras and LED light even in harsh conditions.
Automated Emergency Evacuation System
A known limitation across several robotic solution providers is the absence of a safe recovery mechanism during in-tank failure. Unibose overcomes this limitation by enabling first-of-its-kind robot retrieval within minutes, without any human intervention, ensuring continued safety and regulatory compliance.
Dual-Line Hydraulic Architecture
Two-line system eliminates entanglement around tank roof support legs, versus competitors’ 10-16 hose complexity.
Revolutionary Hose System
A remotely operated, slip-ring–based hose winding system enabling controlled feed and retrieval of hydraulic and camera hoses for smooth robot operation and easy handling.
Integrated ATEX Zone-1 Control Container
Houses power, controls, and winding systems within a unified certified module.
Indian Oil Tank Cleaning
CPCL Tank Cleaning
Technical Specifications
MEET ATEX Zone-0 N-MER
N-MER Applications
Storage Tanks
Industrial Flat-Bottom Assets
Frequently Asked Questions
Is N-MER 100% no man entry?
Yes. Our process follows a strict No-Man Entry policy. The operator remains safely in the Zone-1 control unit and monitors the robot through multiple ATEX Zone-0 cameras, while a small crew (typically 2 people) manages external hose handling with our winder systems. No one enters the tank at any stage. The complete setup—from arrival to robot deployment—typically takes about four hours.
Can Robot achieve clean bottom plates?
The N-MER comes with a custom-designed high-pressure Rotary Surface Cleaner, High-pressure water jetting nozzles and expandable wipers that effectively cleans the bottom plate.
Can robot navigate around the tank legs and furniture?
Yes. The robot is designed to move around tank legs and obstructions smoothly. With ATEX Zone-0 certified forward, rear, and global-view cameras, the operator can clearly see all obstacles. Unibose’s planned cleaning methodology ensures controlled navigation and prevents the robot from getting stuck inside the tank.
Can robot work under submerged condition?
The robot operates with hydraulic power and can function even when completely submerged in sludge. The ATEX cameras can rise up to a maximum height of 1.2 meters and come equipped with Self Cleaning Spraying System to clean their lenses in case of dirt buildup.
Can robot remove heavy/solidified sludges?
Our state-of-the-art robots possess a remarkable sludge cutting system at the front, capable of breaking down even the densest sludge without the aid of water. This innovative feature not only reduces waste but also demonstrates our commitment to environmental sustainability.
Does client need to provide supports like scaffolding, safety rescue team, etc?
No. N-MER is a fully self-contained system. It requires no scaffolding, and because the process is entirely unmanned, no rescue or standby teams are needed.
What will happen if the robot breaks down inside the tank during the tank operation?
Unibose’s N-MER is built with a first-of-its-kind Emergency Evacuation equipped crawler System designed specifically for confined-space environments. If a fault occurs during operation, the robot can be safely retrieved from inside the tank within minutes—without any human entry. The unit is then serviced immediately on-site and relaunched to resume cleaning with minimal downtime. This ensures uninterrupted operations and maintains No-Man-Entry compliance under all times.
Is it expensive and time consuming in comparison to the traditional cleaning methods?
No. In practice, N-MER is proven to reduce overall tank-cleaning time by up to 40%, which directly improves production uptime and lowers total cost. With 45% reduced OPEX, fewer man-hours, and no need for rescue teams, tank spading, or additional permits, the robotic method becomes significantly more economical. As the operation involves zero human entry, we fall under a medium-risk classification, simplifying paperwork and further reducing cost and delays.
Be Part of Engineering That Saves Lives
Get In Touch With Our Experts
Office
No.33, SIDCO Industrial Estate, CMDA Phase – 2, Maraimalai Nagar, Chengalpattu, Tamil Nadu 603209
An ISO 9001:2015, 14001:2015, 45001:2018 certified company
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