Mechanical Inspection
Inspection of structures, lifting systems, wheels, rails, fasteners, wear and deformation.
Overhead Crane Diagnostics & 3D Geometric Inspection
Technical & engineering expertise — LGEN supports you through a complete evaluation of your overhead cranes with a full diagnostic and rigorous 3D geometric inspection, to ensure the safety, reliability and performance of your equipment.
Why geometric inspection is essential
The geometry of runway systems directly influences the mechanical behavior of an overhead crane and the service life of its components. Any deviation from regulatory tolerances can cause abnormal wear on wheel flanges, premature component wear, excessive lateral forces, vibration and operational risks.
A comprehensive approach: general diagnostic + 3D geometric inspection. Our service is not limited to geometric inspection — we carry out a full general diagnostic.
Our comprehensive diagnostic
Electrical Inspection
Inspection of control cabinets, wiring, power supplies, protections, control and safety devices.
Static Load Testing
Static load tests according to current standards to verify the strength of load-bearing elements.
Dynamic Load Testing
Dynamic load tests to validate in-service behavior and the stability of the overhead crane.
Compliant with current standards: ISO 12488-1, 4301-1, FEM 1.001, ISO 9927, EN 15011 and other applicable standards.
Main causes of wheel flange wear
Geometric Defects
Deviations in rail alignment, level, parallelism or straightness.
Lateral Forces
Forced guidance of follower wheels causing accelerated wear.
Component Wear
Wear on wheel flanges, wheels and rails, increased clearances and vibration.
Vibration & Noise
Degraded operation, discomfort, structural risks and material fatigue.
Operational Risks
Unplanned downtime, reduced equipment service life, compromised safety.
Our Commercial Approach
- Long-term partnership — a trusted relationship built on listening, responsiveness and long-term commitment.
- Expertise & independence — an objective analysis based on international standards and reliable recommendations.
- Responsiveness & proximity — fast intervention, clear reporting and dedicated technical exchanges with our engineers.
- Added value — far more than a measurement report: a real analysis, explanations and a concrete action plan.
Our Multidisciplinary Team
Our services are delivered by an experienced multidisciplinary team including:
- Mechanical engineers
- Electrical engineers
- Metrology / 3D measurement technicians
- Lifting & handling technicians
- Test engineers
All interventions are carried out or supervised by our subject-matter expert engineers, ensuring the quality, reliability and compliance of our analyses.
Our Technical Approach
- 1. Data preparation & collection — 3D geometric surveys via Laser Tracker (runway systems, rails, wheel flanges, etc.).
- 2. Data processing & analysis — data cleaning, 3D modeling and calculation of geometric deviations.
- 3. Verification against regulatory tolerances — comparison against ISO 12488-1 and 8306 requirements.
- 4. Analysis & interpretation — identification of non-conformities and explanation of associated mechanical phenomena.
- 5. Design & critical points — analysis of the overhead crane's design (axles, pivots, guiding, limitation) and its impact on equipment behavior.
- 6. Action plan & recommendations — prioritization of corrective actions, technical recommendations and follow-up.
Geometric tolerances for overhead cranes and their runway systems
Reference standards: ISO 12488-1:2012 (Class 2) and ISO 8306:2017
| No. | Inspected Parameter | Tolerance per ISO 12488-1:2012 (Class 2) | Tolerance per ISO 8306:2017 |
|---|---|---|---|
| 1 | Track gauge deviation (rail span) s = distance between inner rail faces | ± [ 3 + 0.25 × (S − 10) ] (max. ± 15 mm) | ± [ 3 + 0.25 × (S − 10) ] (max. ± 15 mm) |
| 2 | Level difference between the two rail rows (ΔH) | ≤ 10 mm | ≤ 10 mm |
| 3 | Horizontal deviation (parallelism) between the two rails (P) P = horizontal deviation over the full length | ± [ 3 + 0.25 × (L − 10) ] (max. ± 15 mm) | ± [ 3 + 0.25 × (L − 10) ] (max. ± 15 mm) |
| 4 | Rail vertical straightness f = maximum deviation from a straight line | 2 mm / 2 m | 2 mm / 2 m |
| 5 | Rail local horizontal straightness | 1 mm / 2 m | 1 mm / 2 m |
| 6 | Rail total horizontal straightness | ± 10 mm | ± 10 mm |
| 7 | Rail joint gap | 2 to 3 mm | 2 to 3 mm |
| 8 | Rail joint vertical offset | ≤ 1 mm | ≤ 1 mm |
General Recommendations
- Comply with regulatory tolerances throughout the equipment's service life.
- Perform regular inspections and after any event that could affect geometry (impact, works, etc.).
- Correct observed deviations before they cause irreversible damage.
- Track and retain inspection history for effective follow-up.
Note
The tolerances indicated apply under normal operating conditions and for structures that are properly installed and maintained.
Benefits for you
- Enhanced safety and compliance
- Reduced breakdowns and premature wear
- Optimized equipment performance
- Controlled maintenance costs
- Improved reliability and longevity of your installations
Our commitment
Quality, rigor and transparency at every stage of our service for reliable, high-performance overhead cranes that meet applicable standards.
"LGEN, your technical partner for durable and effective solutions."
An overhead crane diagnostic to plan?
Our engineers support you from the 3D geometric survey through to the corrective action plan, anywhere in Morocco.