HSOS brings tailored maintenance solutions such as mobile machining, controlled bolt-tensioning and composite repairs directly to the site, to repair extremely stressed and hard-to-transport large components in mining quickly and efficiently. Whether we line-bore worn bearing bores on bucket-wheel excavators, bore out heavy-duty bolts or rectify material damage – we minimise your downtime and secure the productivity of your infrastructure.
Challenges
- ▸Abrasive wear on crushers, mills and conveyor routes
- ▸Oversized components (bucket-wheel excavators, grinding plants) that cannot be shipped
- ▸Bolted joints under vibration and shock load
- ▸Dusty, weather-exposed sites and confined working spaces
- ▸High cost per hour of lost production
Our experience
- ✓On-site line boring of bolt bearings or valves
- ✓Facing of flange and sealing surfaces on processing plants and slewing rings
- ✓Bolt-tensioning with documented preload (±10%)
- ✓Composite repair of abrasively worn lines, buckets or tanks per ISO 24817
- ✓Face milling of housing seats on crusher plants
- ✓High-precision boring-out of heavy-duty bolts
- ✓SCC/VCA-certified crews, 24/7 availability
References
FAQ
Do you also work underground?
Yes — after site-specific safety induction and with suitable equipment.
How large can components be?
On-site machining exists precisely for parts that cannot be shipped; equipment up to 12,000 mm machining diameter.
How fast can you mobilise?
Typically 4–8 hours in DACH and Benelux; up to 24 h across Europe. 24/7: +49 (0) 2335 91094-00.
Always available – fast on site
Less downtime, less production loss. Contact us – 24/7.
Request a quote