Industrial maintenance is the set of technical and organisational operations that keep industrial equipment and installations in a safe, efficient working condition. In factories, cement plants, refineries and silos, the quality of maintenance determines production continuity and worker safety. This guide explains the types of industrial maintenance, the technician's role, and the specific case of installations at height where rope access technicians step in.
Definition of industrial maintenance
Industrial maintenance covers everything done to keep a machine or installation in the state in which it performs its required function, or to bring it back to that state after a failure. It is not limited to repairs: inspection, lubrication, adjustment, replacement of worn parts and documentation of interventions are all part of it.
Maintenance applies to production equipment (motors, cranes, conveyor lines), to the plant's infrastructure (chimneys, silos, tanks, steel structures) and to safety systems such as lifelines and anchor points.
Goals of industrial maintenance
Fewer stoppages — Every unplanned stop means lost production and emergency repair costs.
Safety — Regularly maintained equipment reduces accident risks for workers and the plant.
Longer equipment life — Acting early on corrosion or vibration postpones costly replacement.
Compliance — Documented periodic inspections are required by insurers and quality control.
Types of industrial maintenance
Industrial maintenance is classified by when and why an intervention happens. Most plants rely on a mix of these types:
Preventive maintenance
Pre-scheduled interventions (inspection, lubrication, replacement) regardless of equipment condition, to prevent failures before they occur.
Corrective maintenance
Repairing equipment after a failure appears. Deferred if the fault does not stop production, urgent if it does.
Predictive maintenance
Based on measurements (vibration, temperature, metal thickness) to intervene at the right moment before the failure.
Condition-based maintenance
Triggers an intervention when an indicator crosses a defined threshold, instead of relying on a fixed calendar.
Improvement maintenance
Modifying the equipment or installation to reduce a recurring failure or make future maintenance easier.
Safety-system maintenance
Periodic inspection of lifelines, anchor points and secured ladders — an obligation independent of production maintenance.
What does an industrial maintenance technician do?
The industrial maintenance technician diagnoses failures and carries out interventions on equipment. Daily tasks range from routine inspection to complex repairs:
Inspection and diagnosis — Inspection rounds, reading indicators, locating the source of vibration, leaks or corrosion.
Mechanical work — Assembly, disassembly and replacement of equipment and parts.
Welding and steel structures — Repairing structures, tanks and ducts by welding (TIG, MIG/MAG, coated electrode).
Non-destructive testing — Ultrasound, magnetic particle and dye penetrant to detect defects without damaging the part.
Surface treatment — Sandblasting, industrial painting and anti-corrosion treatment.
Documentation — A report for each intervention: what was inspected, what was replaced, what to monitor at the next visit.
Industrial maintenance on a steel structure by rope access — TravailEnHauteur
Maintenance at height: when to use rope access?
A large share of industrial installations sits at height: chimneys tens of metres tall, grain silos, tanks, steel structures and overhead cranes. Reaching them conventionally requires scaffolding or cranes that are costly and slow to set up. Rope access lets qualified technicians reach the intervention point directly.
Chimneys and silos
External and internal inspection, concrete repair, corrosion treatment.
Tanks and refineries
Metal thickness inspection, welding, protective coating.
Steel structures
Tightening connections, replacing corroded elements, installing anchor points.
Overhead cranes
Inspection of rails and supports, installation of lifelines for technicians.
What can be done on ropes?
Lifeline installation — Horizontal and vertical lifelines and EN 795 certified anchor points to secure your teams' interventions.
Welding at height — On steel, stainless steel and aluminium without dismantling the structure.
Non-destructive testing — Direct measurements on chimneys, tanks and structures.
Sandblasting and painting — Corrosion treatment and industrial painting on elevated surfaces.
Discover our rope access industrial maintenance service in Tunisia
How to build an industrial maintenance plan
A good maintenance plan does not start with tools but with inventory and classification:
Inventory equipment and installations: every machine, structure, tank or chimney with its current condition.
Classify criticality: what stops production if it fails? What threatens safety?
Choose the maintenance type for each item: preventive for critical items, deferred corrective for secondary ones.
Schedule periodic inspections, including safety systems at height.
Define the access method for each intervention: scaffolding, crane or rope access.
Document every intervention and update the plan yearly based on recorded failures.
Frequently Asked Questions
It is the set of technical and organisational operations (inspection, lubrication, adjustment, repair, replacement, documentation) that keep industrial equipment and installations in a safe, efficient working condition or bring them back to that condition after a failure.
Preventive maintenance is carried out before a failure, on a pre-defined schedule. Corrective maintenance is carried out after a failure appears, to repair it. Preventive maintenance costs less in the long run because it avoids unplanned stoppages.
When the intervention point is high or hard to reach (chimneys, silos, tanks, steel structures, overhead cranes) and when erecting scaffolding or hiring cranes is expensive, impossible or would require stopping production.
Yes. In addition to mechanical or welding skills, the technician must be trained and qualified in rope access techniques, with certified equipment and rescue systems. TravailEnHauteur teams work to these requirements throughout Tunisia.