Blog & Insights
Heat Treatment Beyond the Pipeline: Pinion Bearing Housing Released by Controlled Heating
During a planned shutdown at a German steel plant, HSOS applied controlled resistance heating to a multi-tonne pinion bearing housing to soften an adhesive bond to the concrete foundation – a demanding 3.5-day, round-the-clock operation in a confined, industrial environment.
Read more →4.5 Metre Diameter. 12 mm Carbon Steel. One Pass. Cold Cut. On Site.
On a decommissioning project, we severed a tank wall – 4.5 m diameter, 12 mm carbon steel – in a single cold-cutting pass, with no dismantling and no heat input.
Read more →Stern Tube Boring in Dry Dock – Precision On-Site Machining Aboard
HSOS Germany and HSOS Belgium jointly carried out stern tube boring on a vessel in dry dock at a German shipyard – including flange face machining and in-house laser alignment within 2.5 shifts.
Read more →DN250 Dished End Repaired by Composite Laminating – On-Site Works in NRW
Composite repair is not limited to pipework: HSOS Industrial Services restored a DN250 dished end with localised corrosion damage and perforations using wet lay-up lamination and a ceramic-filled topcoat – all carried out on site in North Rhine-Westphalia.
Read more →Emergency CNC On-Site: Helicoil Thread M107.8×6 Repaired on P92 Turbine Component
When a Helicoil thread was damaged on a turbine in the Netherlands, HSOS mobilised teams from Germany and the Netherlands to machine a replacement M107.8×6 thread in weld-critical P92 material – completed within 4 working days of first contact.
Read more →Pump Shaft Restoration on a Dredging Vessel – On-Site, Netherlands
HSOS Industrial Services restored the shaft seat of a dredging pump to slide-fit tolerance directly on board a vessel in the Netherlands, including installation of a new water chamber sleeve.
Read more →Power Plant Outage Work: Pipe and Flange Machining, Conical Bores
During the first half of 2026, HSOS Industrial Services participated in major power plant outages across Germany, carrying out a wide range of conventional and CNC machining tasks on-site.
Read more →Field Joint Coating of Welds on a Buried Gas Pipeline
In March 2026, HSOS Industrial Services completed field joint coating works on a buried gas pipeline in central Germany, carried out by individually DVGW-15 certified technicians to ensure long-term corrosion protection and cathodic protection compatibility.
Read more →Face Milling and Aperture Milling on Crane Runway Girders in a Steel Plant
At a steel plant in North Rhine-Westphalia, HSOS completed a three-week on-site machining campaign on multiple crane runway end girders – with material removal depths up to 50 mm, overhead work positions and fully mechanical machine fixation.
Read more →PWHT on Turbine Rotor Blade: 36-Channel Heat Treatment System Raises the Bar
HSOS Industrial Services has successfully completed post-weld heat treatment (PWHT) on a turbine rotor blade in the Netherlands, deploying its newly developed 36-channel annealing system with substantially reduced power consumption.
Read more →Successful intervention at petrochemical plant in Rotterdam
Live bypass at a petrochemical plant in Rotterdam: four hot taps, stopple line stops and spark-free clamshell cold cutting — completed within 48 hours without interrupting the flow of medium.
Read more →Composite repairs to ISO 24817: permanent or interim?
Composite wraps are recognised as a permanent solution — when correctly designed. What ISO 24817 actually requires.
Read more →An ice flower for the customer: butterfly valve swap on DN300 without shutdown
Pipe freezing on a DN300, PN10 cooling-water line — two butterfly valves replaced, plant kept running, finished in 8 hours.
Read more →Rarity in piping: X20 cross-piece — cutting and bevelling 521 × 61.5 mm
True 4-way cross pieces are uncommon. We removed and bevelled one made of creep-resistant X20 steel, 61.5 mm wall thickness, in 36 hours.
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