How to Reduce Risk With Custom Inspection Robotics

Industrial facilities present inspection challenges that off-the-shelf equipment simply cannot address. Pipes with tight-radius bends, confined tanks with internal obstructions, and vertical structures reaching dozens of metres high all require tailored approaches. Nexxis delivers custom robotic inspection systems that match the specific geometry, environment and data requirements of your assets.

This guide explains when custom robotic inspection is necessary, what factors determine system design, and how purpose-built platforms reduce exposure, downtime and access risk on complex industrial infrastructure.

Key Takeaways: Custom Robotic Inspection Systems

• Custom robotic inspection systems address unique asset geometries and environments that off-the-shelf equipment cannot reach or navigate
• Nexxis designs purpose-built crawlers and platforms that reduce confined space entry requirements and shorten inspection timelines from days to hours
• Tailored inspection robotics can integrate multiple capabilities including visual, ultrasonic and depth measurement on a single platform
• The scoping process identifies specific access constraints, environmental hazards and data requirements before any equipment selection occurs
• Field-tested custom solutions have delivered documented outcomes including estimated cost savings exceeding €500,000 per project

What Are Custom Robotic Inspection Systems?

Custom robotic inspection systems are purpose-built platforms designed to meet the unique requirements of a specific inspection task. Unlike standard inspection tools that follow generic specifications, custom systems are engineered around the actual geometry, environment and data needs of your asset.

These systems can include robotic crawlers configured for specific pipe diameters, magnetic climbing platforms built for vertical structures, or submersible units rated for hazardous atmospheres. The distinction lies in the design approach: custom systems start with your operational challenge, not a product catalogue.

Consider the difference between renting a general-purpose pipe crawler versus having one engineered to navigate your specific 1.5D bends at 180mm diameter while carrying depth cameras to quantify wall thickness anomalies. The latter delivers data the former simply cannot capture.

When Do You Need a Custom Robotic Inspection System?

Not every inspection requires a bespoke solution. Standard equipment handles many routine tasks effectively. However, certain conditions make custom systems necessary rather than optional.

Asset Geometry Exceeds Standard Equipment Limits

Standard crawlers typically handle pipe diameters within common ranges and bend radii above 2D. When your asset has tighter bends, smaller diameters, or unusual transitions between sections, off-the-shelf units will jam, lose traction, or fail to navigate entirely.

The challenge extends beyond physical fit. Getting through a bend matters little if you cannot position sensors accurately once inside. Custom platforms address both navigation and payload positioning for your specific geometry.

Environmental Conditions Demand Specialised Ratings

In-service inspections present environmental variables that standard equipment often cannot tolerate. A diesel storage tank requires submersible capability. A liquid burning flue demands heat-resistant components. Hazardous atmospheres need Ex-rated electronics.

Custom systems allow you to specify environmental ratings based on actual operating conditions rather than accepting limitations from equipment designed for general use.

Multiple Data Types Required From a Single Deployment

Some inspections need more than visual confirmation. You may require ultrasonic thickness measurements, surface profiling, coating assessment and high-definition video from a single entry point. Integrating these capabilities onto one platform eliminates multiple deployment cycles and reduces total asset downtime.

Nexxis has delivered custom inspection crawlers that combine PTZ cameras, UT probes and cleaning attachments on unified platforms, capturing all required data in one pass through the asset.

Standard Approaches Present Unacceptable Safety Exposure

Confined space entry remains one of the most hazardous activities in industrial operations. When traditional inspection methods require personnel to enter tanks, vessels or pipework, the risk profile changes dramatically.

Custom robotic solutions designed for your specific confined space eliminate or substantially reduce human entry requirements. This addresses regulatory compliance while protecting your workforce from atmospheric hazards, entrapment risks and ergonomic challenges inherent in manual confined space inspection.

How Custom Robotic Inspection Systems Reduce Risk

Risk reduction from custom robotic inspection operates across multiple dimensions. Understanding each category helps you evaluate the full value of a tailored approach.

Access Risk Reduction

Every hour personnel spend inside confined spaces represents exposure to potential harm. Atmospheric conditions can change. Equipment can fail. Communication can degrade. Custom robotic platforms remove operators from these hazardous environments entirely.

Rather than sending technicians into a 70+ metre flue stack, a custom magnetic crawler carries cameras and sensors to the required positions while operators remain at a safe distance. The robot assumes the access risk that would otherwise fall on your team.

Downtime Risk Reduction

Traditional inspections often require complete shutdowns, tank emptying and extensive preparation before any data collection begins. This creates operational exposure: lost production, revenue impacts and potential supply chain disruptions.

Custom in-service inspection solutions can dramatically compress these timelines. One Nexxis project reduced inspection downtime from a multi-week process to just three days while the asset remained operational, delivering estimated savings of $500,000 through avoided shutdown costs.

Data Quality Risk Reduction

Poor inspection data leads to poor maintenance decisions. When equipment cannot reach critical areas or cannot position sensors accurately, the resulting information gaps create downstream risk in your asset integrity programme.

Custom platforms engineered for your specific asset ensure full coverage of inspection areas. Purpose-built positioning mechanisms place sensors exactly where needed, capturing accurate measurements rather than approximations from awkward angles or partial access.

Regulatory and Compliance Risk Reduction

Many jurisdictions require periodic inspections to maintain operating permits. Failing to complete these inspections within required timeframes creates compliance exposure and potential operational restrictions.

Custom robotic approaches can help you meet regulatory requirements without the extended shutdowns traditional methods demand. In one documented case, a custom tank inspection solution helped an energy operator extend their statutory inspection interval by four years through more frequent and thorough remote assessments.

Key Components of Custom Robotic Inspection Systems

Understanding what goes into a custom system helps you specify requirements effectively and evaluate proposed solutions. Most platforms share common functional elements, though implementations vary based on application needs.

Locomotion and Mobility Systems

How the robot moves through your asset determines what it can access. Options include wheeled, tracked, magnetic and hybrid mobility systems. The selection depends on surface conditions, geometry constraints and payload requirements.

Wheeled systems offer speed on smooth surfaces. Tracked platforms handle debris and rough terrain. Magnetic crawlers climb vertical and inverted ferrous structures. Some applications require combinations: tracks for horizontal travel transitioning to magnetic adhesion for vertical sections.

Sensor and Camera Payloads

The purpose of getting a robot into position is capturing useful data. Payload options include high-definition cameras with pan-tilt-zoom capability, ultrasonic thickness probes, depth cameras for surface profiling, and environmental sensors for gas detection or temperature monitoring.

Custom systems allow you to specify exactly which sensors you need rather than accepting whatever a general-purpose platform carries. This ensures the data you collect actually supports your maintenance decisions.

Communication and Control Systems

Operators need reliable control inputs and real-time feedback from the robot. Communication systems must handle the signal attenuation that occurs inside metal structures, around corners and over extended tether lengths.

Custom control systems can be specified for your particular environment, whether that means extended tether lengths exceeding 100 metres, wireless operation where tethers create entanglement risk, or specialised interfaces that integrate with your existing data management infrastructure.

Environmental Protection

The robot must survive the environment it enters. This includes ingress protection ratings for dust and liquid exposure, material compatibility with process fluids, temperature ratings for hot or cold applications, and intrinsic safety certification for explosive atmospheres.

Custom systems match environmental protection to actual operating conditions rather than forcing you to work around the limitations of standard equipment ratings.

The Custom Robotic Inspection Development Process

Moving from an inspection challenge to a working custom solution follows a structured process. Understanding these stages helps you engage effectively with engineering teams and set realistic timeline expectations.

Challenge Scoping and Requirements Definition

The process begins with a detailed assessment of your inspection challenge. This includes asset geometry documentation, environmental condition analysis, data requirement specification and operational constraint identification.

Effective scoping requires input from operations, maintenance, integrity and safety stakeholders. Each brings perspective on what the system must accomplish and what constraints it must respect. Incomplete scoping leads to solutions that miss critical requirements.

Concept Development and Feasibility Analysis

Engineering teams develop initial concepts addressing your requirements. This stage involves evaluating locomotion approaches, payload configurations and control system architectures against your constraints.

Feasibility analysis identifies technical risks and potential showstoppers before significant resources are committed. Some concepts may prove impractical; others may require modifications to your access points or operational procedures to enable deployment.

Detailed Design and Component Selection

Once a concept proves feasible, detailed design work specifies every component. This includes mechanical systems, electrical systems, sensors, communications and control software. Component selection balances performance requirements against availability, cost and long-term supportability.

Fabrication and Integration

Physical construction follows detailed design. Mechanical components are fabricated, electronic systems assembled, and everything integrated into a complete platform. Quality verification throughout this stage ensures the finished system matches design intent.

Testing and Validation

Before deployment, custom systems undergo rigorous testing. This includes functional verification in controlled conditions and validation testing that simulates actual operating environments as closely as practical.

Testing reveals issues that design analysis may miss. Sensor mounting adjustments, traction improvements and control refinements typically occur during this stage based on empirical performance data.

Field Deployment and Support

Initial deployment includes operator training and engineering support to ensure successful first use. Ongoing technical support addresses questions that arise during actual inspection campaigns.

Nexxis maintains 24/7 technical support for deployed equipment, ensuring operators have expert assistance whenever needed.

Factors That Influence Custom System Complexity

Not all custom solutions require the same development effort. Several factors determine whether your requirements call for a straightforward adaptation or a ground-up engineering programme.

Departure From Existing Platform Capabilities

When your requirements align closely with existing platform capabilities, customisation may involve payload integration and control modifications rather than new locomotion development. Greater departures from existing capabilities require more extensive engineering.

A crawler configured for your specific pipe diameter using existing modular components differs significantly from developing new magnetic adhesion technology for a novel surface material.

Environmental Certification Requirements

Hazardous area certifications such as ATEX or IECEx add complexity and timeline to any development programme. Certification processes involve third-party review, testing and documentation requirements that extend beyond the engineering work itself.

If your application requires Ex-rated equipment, build certification timelines into your project planning from the outset.

Data Integration Requirements

Some inspections simply need video capture. Others require real-time data streaming to existing asset management systems, automated anomaly detection, or integration with digital twin platforms. Integration complexity scales with the sophistication of your data workflows.

Operating Environment Extremes

Standard industrial environments present manageable conditions. Extreme temperatures, aggressive chemical exposure, high pressure, radiation or other unusual conditions require specialised materials and components that may have limited availability or require custom development.

Industry Applications for Custom Robotic Inspection

Custom robotic inspection addresses challenges across multiple industrial sectors. Understanding applications in your industry helps identify opportunities for improvement in your own operations.

 

Oil and Gas

Refineries, petrochemical facilities and production platforms contain thousands of metres of pipework, hundreds of vessels, and numerous confined spaces requiring periodic inspection. Custom robotic solutions address applications from small-diameter tubing inspection to large storage tank assessment.

Ex-rated systems enable inspection in Zone 1 classified areas without the operational restrictions that apply to non-certified equipment.

Mining and Resources

Mining operations present unique inspection challenges including caustic slurry pipelines, heat exchangers with complex internal geometry, and infrastructure in remote locations where mobilisation costs are significant.

Nexxis worked with Alcoa to develop the PowerTrain crawler specifically for their pipeline inspection requirements, including 1.5D bends, 180mm diameters and vertical runs reaching 28 metres. This bespoke solution addresses wear detection challenges that existing equipment could not solve.

Power Generation and Utilities

Power plants require inspection of boiler tubes, heat recovery systems, cooling water infrastructure and structural components. Outage windows are tightly scheduled, making inspection efficiency critical to minimising downtime costs.

Custom systems that capture all required data in compressed timeframes directly support outage schedule adherence and faster return to service.

Manufacturing and Infrastructure

Manufacturing facilities contain process vessels, storage tanks, and utility systems requiring periodic integrity verification. Infrastructure operators manage bridges, tunnels, pipelines and other assets where inspection access presents ongoing challenges.

Custom approaches address the specific geometry and access constraints each asset presents, rather than forcing operators to work around equipment limitations.

Evaluating Custom Robotic Inspection Providers

Selecting the right partner for custom robotic inspection development determines project success. Several factors distinguish capable providers from those who may struggle with your requirements.

Engineering Depth and In-House Capability

Effective custom development requires mechanical, electrical, software and systems integration expertise. Providers with in-house engineering teams can address the full scope of development work. Those who must outsource critical capabilities face coordination challenges and potential knowledge gaps.

Ask about specific engineering staff, their backgrounds and their experience with applications similar to yours.

Field Experience and Application Knowledge

Laboratory development differs from field deployment. Providers with extensive field experience understand the practical realities that laboratory testing may not reveal: cable routing challenges, operator ergonomics, maintenance access requirements and operational workflow integration.

Nexxis brings decades of field deployment experience across oil and gas, mining, utilities and infrastructure sectors. This practical foundation informs every custom development programme.

Ongoing Support and Partnership Approach

Custom equipment requires ongoing support throughout its operational life. Spare parts availability, technical assistance, repair capability and upgrade pathways all affect long-term value.

Evaluate provider support infrastructure and their commitment to the relationship beyond initial delivery. Equipment that cannot be maintained or upgraded becomes a liability rather than an asset.

Track Record With Similar Applications

Past performance indicates future capability. Providers who have successfully delivered custom systems for applications similar to yours demonstrate relevant competence. Ask for case studies, reference contacts and specific outcome data from comparable projects.

Calculating Return on Investment for Custom Solutions

Custom robotic inspection represents an investment that must be justified against alternatives. Building a clear business case requires quantifying benefits across multiple value streams.

Direct Cost Savings

Compare total inspection costs between traditional methods and robotic approaches. Include preparation work, scaffold erection, shutdown duration, personnel costs, equipment rental and post-inspection restoration.

Robotic approaches often eliminate or dramatically reduce several of these cost elements. One Nexxis in-service tank inspection project delivered estimated direct savings of $500,000 compared to conventional shutdown-based methods.

Downtime Value Recovery

Production lost during inspection shutdowns has real value. Quantify this value based on your specific production rates and margins. Shorter inspection timelines or in-service capability directly recovers this lost value.

For high-value production assets, downtime recovery alone may justify custom solution investment.

Safety Incident Avoidance

Confined space incidents carry direct costs including medical expenses, regulatory penalties and legal liability. They also carry indirect costs through operational disruption, workforce morale impacts and reputational damage.

Eliminating confined space entry requirements removes these exposure categories entirely.

Extended Asset Life and Optimised Maintenance

Better inspection data enables better maintenance decisions. Early defect detection allows timely intervention before failures occur. Accurate condition assessment supports risk-based maintenance strategies that balance cost against reliability.

These benefits compound over asset life, potentially extending useful service while reducing total maintenance expenditure.

Getting Started With Custom Robotic Inspection

If your inspection challenges exceed the capabilities of standard equipment, custom robotic solutions may deliver substantial value. The path forward begins with a clear definition of your requirements.

Document your asset geometry, environmental conditions, data requirements and operational constraints. Identify the specific outcomes you need from the inspection programme. Quantify the costs and risks associated with current approaches.

Armed with this information, engage with providers who demonstrate genuine engineering capability and field experience. Evaluate their approach to understanding your requirements, their technical proposals and their commitment to long-term partnership.

Nexxis brings engineering-led expertise to custom robotic inspection challenges across oil and gas, mining, utilities and infrastructure sectors. Our Innovation Lab develops purpose-built solutions that address the specific requirements standard equipment cannot meet.

Contact us to discuss your inspection challenge and explore how custom robotic solutions can reduce risk, compress timelines and deliver better data for your asset integrity programme.

FAQs About Custom Robotic Inspection Systems

What makes a robotic inspection system “custom” versus off-the-shelf?

Custom systems are engineered specifically for your asset geometry, environmental conditions and data requirements. Nexxis designs these platforms starting with your inspection challenge, configuring locomotion, sensors and controls to match your specific needs rather than forcing you to work around standard equipment limitations.

How long does it take to develop a custom inspection robot?

Development timelines vary based on complexity. Adaptations of existing platforms may take weeks, while ground-up development programmes can extend to months. Hazardous area certifications add additional time. Nexxis provides realistic timeline estimates during the scoping phase based on your specific requirements.

Can custom robotic systems inspect assets while they remain in service?

Many can. Nexxis has delivered submersible crawlers for in-service tank inspection and heat-resistant systems for operating flue stacks. In-service capability depends on environmental conditions, safety requirements and regulatory acceptance. Each application requires individual assessment.

What happens if my custom robot needs repair or modification?

Nexxis maintains service capability for all equipment we deploy. This includes spare parts inventory, repair services and modification support. Our technical team remains available for the operational life of your equipment, ensuring you can address issues promptly and adapt the system as your needs evolve.

How do I know if I need custom equipment versus standard solutions?

Consider custom solutions when your asset geometry exceeds standard equipment limits, environmental conditions require specialised ratings, multiple data types are needed from a single deployment, or safety exposure from traditional methods is unacceptable. Nexxis can help evaluate whether your requirements call for custom development or can be addressed with existing platforms.

What industries benefit most from custom robotic inspection?

Oil and gas, mining, power generation, manufacturing and infrastructure sectors all benefit significantly. Any industry operating assets with confined spaces, complex internal geometry, hazardous environments or challenging access conditions can realise value from custom robotic inspection approaches tailored to their specific challenges.