Bolt & drone inspection
guessing.
You cannot tell by looking at a bolted connection whether it will hold. We determine the preload force using ultrasound and use drones to semi-automatically scan large areas, even in places inaccessible to humans.
Scope of services
What we measure and record.
01 — BOLT TESTING
Preload force via ultrasound
Ultrasonic measurement method for determining preload force on safety-critical connections.
Bolt testing and bolt inspection
Measurement of individual connections, as a spot check or comprehensive survey.
Measurable on any standard bolt; no special bolts required
Focus on safety-critical connections
reproducibly documented and therefore verifiable to third parties
02 — EXTERNAL DRONE
External drone inspection
Efficient assessment of large areas and hard-to-reach locations.
Semi-automated data collection
Large areas in a short time
Tower and outer shell
Rotor blade exterior
Analysis with localization of the finding
even in areas that are difficult to reach via rope access
03 — CONFINED SPACE
Drone in an indoor environment
Inspection of confined and hard-to-reach interior spaces where human access would be complex or risky.
Inspection of confined spaces
without personnel in hazardous areas
Image data instead of site visits
documented images as the basis for assessment
04 — DOCUMENTATION
Analysis and reporting
A measurement is only useful if it remains traceable later on. Every finding is localized, documented, and classified.
Finding with clear localization
every finding clearly assigned to a specific location on the asset
Classification of required action
so you know what needs immediate attention and what can wait until the next window
Delimitation
We inspect. Others repair.
mh² inspection provides exclusively inspection and expert services. Repairing any findings is the responsibility of executing companies, such as our sister company mh² offshore. This is not a detour, but intentional: an inspection is only reliable if it is carried out independently of the repair work.
At mh² inspection
, inspection: periodic inspection, bolt and drone inspection, as well as expert services.
At mh² offshore
, maintenance: steel construction, welding technology, and corrosion protection on the turbine.
Additional services
What else we do.
01 — PERIODIC INSPECTION
Periodic inspection
Standard-compliant inspection for operating permits: support structures, weld seams, coatings, and rotor blades, assessed according to recognized standards.
Steel structures & buildings
Weld seam inspection
Visual inspection CVI / GVI
Coating inspection
Rotor blade inspection
Learn more→
03 — EXPERT SERVICES
Expert services
On-site assessment of conditions, determination of the cause of damage, and preparation of a comprehensive expert report to support your decision-making.
On-site expert inspection
Root Cause Analysis (RCA)
In-depth expert report
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04 — ROPE ACCESS
Rope access technology
Industrial climbing or rope access: safe and efficient access to hard-to-reach components, without the need for scaffolding or cranes.
All inspections also available via rope access
Access without scaffolding
Learn more→
Have a finding but can't find the cause?
Send us your reports or photos — we will tell you what we make of them and what the best next steps are.