DERC Salotech

How does the MagTrack reduce tank cleaning downtime?

The MagTrack robotic crawler can significantly reduce tank cleaning downtime by replacing slow, labour-intensive manual methods with continuous, automated high-pressure waterblasting that operates directly on steel surfaces without requiring personnel to enter the confined space. In practical terms, what previously demanded multi-day shutdowns involving scaffolding, ventilation rigs, and rotating crews can be completed in a fraction of the time. The sections below break down exactly why tank cleaning takes so long, how the MagTrack addresses each bottleneck, and when it makes the most sense to deploy it.

What makes tank cleaning so time-consuming in industrial settings?

Tank cleaning is time-consuming primarily because it combines confined space entry protocols, manual labour at scale, and the need for a thoroughly clean, dry surface before any inspection or coating work can begin. Every step – from gas-freeing and ventilation to scaffolding installation, manual blasting, waste collection, and personnel rotation – adds hours or days to the overall shutdown window.

In petrochemical, energy, and marine environments, the preparation work alone can dwarf the actual cleaning time. Before a single technician enters a storage tank, the site team must confirm safe atmospheric conditions, install lighting and ventilation, and establish rescue protocols in line with guidelines from organisations such as SIR (Netherlands), EWJI (Europe), WJA (UK), WJTA (USA), and DIRV (Germany). These are not optional steps – they are non-negotiable safety requirements that consume significant calendar time.

Once inside, manual operators working with high-pressure lances at pressures ranging from 500 to 3,000 bar “7,250 to 43,511 PSI” can only sustain effective output for limited periods due to physical fatigue and safety rotation requirements. Wastewater and dislodged debris must be managed continuously to keep the working area safe, adding another layer of coordination. The result is a process that is inherently stop-start, heavily labour-dependent, and difficult to accelerate without compromising safety.

How does the MagTrack system work inside a tank?

The MagTrack is an electrically driven, remote-controlled magnetic crawler that attaches to steel surfaces using height-adjustable magnets and traverses the interior walls, floors, and curved sections of a tank autonomously, delivering high-pressure waterblasting at up to 3,000 bar “43,511 PSI” without requiring an operator inside the confined space.

The system is built around a modular universal carrier that can be fitted with different cleaning tools depending on the application. For tank cleaning, the primary attachment is the Blast Can – a vacuum dome installed in front of the four-wheel carrier. The Blast Can connects to an external vacuum unit, which continuously draws away water and debris as the robot works. This closed-loop approach means the tank surface is left clean and dry immediately behind the crawler, with no pooling water or loose debris accumulating on the floor.

The operator controls the MagTrack from outside the tank using a remote controller, monitoring progress and adjusting direction as needed. Because the robot maintains consistent contact with the steel surface through its magnetic drivetrain, it delivers uniform cleaning pressure across the entire cleaning path, something manual operators struggle to replicate over extended periods. The rotating manifold with eight jet inserts ensures even distribution of the high-pressure water across a 180 mm cleaning path per pass.

Which tank types and surfaces is the MagTrack compatible with?

The MagTrack is compatible with flat and slightly curved steel surfaces as standard, and with the Curved Blast Can attachment it can also handle highly curved surfaces with a radius of up to 3 meters “9.8 feet”, making it suitable for oil storage tanks, cargo holds, and the curved contours of ship hulls.

The modular design means the system adapts to a wide range of tank geometries and cleaning requirements:

  • Flat-walled storage tanks: The standard four-wheel carrier with Blast Can covers large flat panels efficiently, ideal for the interior walls and floors of oil storage tanks.
  • Small storage tanks up to 6 meters “19.7 feet” in diameter: The Curved Blast Can handles the tighter radii found in smaller vessels without losing contact or vacuum integrity.
  • Ship hulls and cargo holds: The curved surface capability and compact footprint make the MagTrack well suited to marine applications where surface geometry varies continuously.
  • Offshore platforms and oil rigs: The MagTrack Mini variant is specifically designed for narrow spaces and offshore environments, and is available as a certified ATEX Zone 2 unit for use in potentially explosive atmospheres.
  • Wind girders and structural components: The Swing Arm attachment allows open waterblasting of tank wind girders and similar constructions where collection of debris is less critical.

All MagTrack tools operate within the full pressure range of 500 to 3,000 bar “7,250 to 43,511 PSI”, and the system meets both metric and SAE standards, an important consideration for teams working across multiple jurisdictions or international project sites.

How much downtime can the MagTrack realistically eliminate?

The MagTrack realistically eliminates downtime by removing the most time-intensive elements of a manual tank cleaning programme: confined space entry preparation, personnel rotation cycles, and the extended drying time that follows wet manual blasting. While exact time savings depend on tank size, surface condition, and the tools selected, the gains are most significant in the preparation and execution phases.

Manual tank cleaning typically requires multiple operators working in rotation, with each shift constrained by physical endurance and the mandatory safety checks required before and after each confined space entry. The MagTrack operates continuously within those same windows without fatigue, and because the Blast Can’s vacuum system leaves the surface dry immediately, downstream coating or inspection work can begin sooner.

Additional time savings come from reduced scaffolding requirements. Because the robot traverses vertical and curved surfaces magnetically, fixed scaffolding structures needed to position manual operators at height are either reduced or eliminated entirely. Scaffolding installation and dismantling can represent a substantial portion of total shutdown time, so removing that dependency has a compounding effect on the overall schedule.

For teams managing recurring maintenance cycles, for example, annual tank inspections in the petrochemical sector, the cumulative time saved across multiple cleaning events makes a measurable difference to overall asset availability.

What safety risks does automated tank cleaning remove from the equation?

Automated tank cleaning with the MagTrack removes the most serious safety risks associated with manual methods by keeping personnel out of the confined space during active high-pressure operations. The primary hazards eliminated are direct exposure to high-pressure water jets, inhalation of airborne contaminants, and the physical strain injuries associated with sustained manual lance operation.

Organisations including SIR (Netherlands), EWJI (Europe), WJA (UK), WJTA (USA), and DIRV (Germany) all publish standards and guidelines governing confined space entry and high-pressure waterblasting. Compliance with these frameworks requires extensive procedural controls precisely because the combination of confined spaces and high-pressure equipment creates compounding risk. Removing the operator from the hazard zone is the most direct way to reduce that risk.

The closed-loop Blast Can system contributes further to site safety by containing water and debris within the vacuum circuit rather than allowing them to accumulate on tank floors, where they create slip hazards and complicate waste management. In environments where the tank previously contained hydrocarbons or other hazardous materials, limiting the spread of contaminated water is both a safety and an environmental compliance requirement.

For offshore and potentially explosive environments, the ATEX Zone 2 certified version of the MagTrack Mini addresses the additional ignition risks present on oil rigs and similar facilities, a level of protection that manual cleaning equipment cannot always match.

When should a maintenance team choose the MagTrack over manual methods?

A maintenance team should choose the MagTrack over manual methods when the combination of confined space risks, tight shutdown windows, and surface quality requirements makes the cost of manual labour, in time, safety overhead, and rework, higher than the cost of deploying robotic cleaning. This applies most clearly to large storage tanks, recurring maintenance programmes, and any environment where ATEX certification or strict contamination control is required.

Specific scenarios where the MagTrack delivers the clearest advantage include:

  • Large flat-surface tanks where manual coverage is slow and operator fatigue degrades cleaning consistency over time.
  • Tanks with strict surface preparation standards for coating or inspection, where the dry, consistent result from the Blast Can’s vacuum system reduces the risk of rework.
  • Offshore or ATEX-classified environments where manual operations face additional regulatory constraints and the ATEX Zone 2 certified MagTrack Mini provides a compliant alternative.
  • Recurring cleaning cycles where the time savings compound across multiple shutdowns, improving overall asset availability and reducing cumulative labour costs.
  • Sites with limited qualified personnel for confined space entry, where the robot reduces the number of people required inside the tank without reducing cleaning output.

Manual methods remain appropriate for small, irregular structures or areas where the robot’s magnetic footprint cannot maintain adequate contact. In those cases, a hybrid approach, robot for the large accessible surfaces, manual lance for corners and fittings, often delivers the best overall result.

How MagTrack helps reduce tank cleaning downtime

We developed the MagTrack specifically to address the bottlenecks that make industrial tank cleaning so disruptive to operational schedules. Here is how the system directly tackles the challenges covered in this article:

  • Continuous operation without fatigue: The electrically driven crawler works at consistent output across the full cleaning window, removing the stop-start rhythm of manual crew rotation.
  • Immediate dry surface: The Blast Can’s vacuum system collects water and debris in real time, so the cleaned surface is ready for inspection or coating without an additional drying phase.
  • Reduced confined space entry: With the operator controlling the robot remotely, the number of personnel required inside the tank drops significantly, reducing safety overhead and preparation time.
  • Modular tool compatibility: From the Curved Blast Can for complex geometries to the Swing Arm for wind girders, the MagTrack adapts to the specific demands of each tank without requiring a different machine.
  • ATEX Zone 2 availability: The MagTrack Mini’s certified configuration means explosive-atmosphere environments do not require a separate cleaning solution.
  • Pressure range of 500 to 3,000 bar “7,250 to 43,511 PSI”: The full operating range covers everything from light washing to aggressive surface preparation in a single platform.

If you are evaluating whether the MagTrack is the right fit for your next tank cleaning project, explore the full MagTrack product range or get in touch with our team to discuss your specific application and surface requirements.

Questions?

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