(en)
Menu
Industries
Industries
Industries overview Industries The global Metalock Engineering Group supports all engineering industries during planned maintenance periods and also in emergency breakdown situations.
Services
Services
Services overview Services The Metalock Group offer numerous mechanical services and repairs across the world, including On Site Machining, Casting Repairs, Metrology and Crankpin Machining.
Repairs
Repairs
Repairs overview Repairs This is the overview page for all of the typical repair services that Metalock carry out across the world, including specialist cold cast iron repairs and specialist diesel engine repairs and line boring.
Rental & Sales
Careers
About Us
About Us
About Us overview About Us Our engineers and technicians have all the experience and specialist knowledge needed to get your operation back in action as fast as possible. If anyone can save you time and money and protect your hard-earned reputation, they can.
Contact Us
Contact Us
Metalock logo on clothing Contact Us How can we help you? We offer a 24/7 worldwide emergency response. Contact us by phone or email.
Home Industries Power Plant
Power Plant

Power Plant and Hydro Repairs

With the global power generation infrastructure having such strategic importance, even small breakdowns can have massive implications. For decades now, the Metalock Engineering Group has been helping operators and OEMs keep the lights on.

Presentation Downloads

Keeping Power Generation Plants Working Efficiently

Are you facing the challenge of recovering a damaged turbine bearing journal diameter, re-machining damaged or worn blade location slots or a damaged thrust-collar, or perhaps, you need a turbine retrofit or upgrades to increase the operating efficiency?

Whatever specialist engineering services you need, we’ve probably got a technique to save you time and money, avoiding the removal of plant and the transportation to a workshop.

Our convenient one-stop range of services, 24/7 global responsiveness and unparalleled sector expertise are the key to cost-effective repairs and modifications for strategically important power generation infrastructure.

As well as using existing techniques, we regularly develop bespoke machines and processes to address special challenges. That’s how we’ve grown and developed over nearly 70 years in business and you’re the one who benefits.

Find out how our experience working in the Power industry can help save you time and money

Rotating Plant Repairs and Maintenance - Steam Turbines and Hydro Turbines

Metalock is involved in working on a variety of rotating plant units used in power generation.

Steam Turbine, Hydro Turbine, Wind Turbine, Compressors, Feed Pumps, Marine Turbines, Industrial Turbines as well as green power from renewable waste resources such as Biomass, Cogeneration, Waste to Energy, Landfill Gas, we work on them all - large or small!

  • Line boring turbine casings.
  • Steam inlet and outlet flange machining.
  • Turbine split joint faces.
  • Casing stud removal.
  • Tip grinding in situ (rotary and fixed blades).
  • HP and LP valve machining.
  • Coupling-hole machining.
  • Turbine-rotor bearing journal machining.

Presentation

Metalock Group Power Generation Presentation Metalock Group Power Generation Presentation
Download (PDF 10.16MB)

Hydro Turbine Repair Video

Hydro Machining

  • Coupling-hole machining
  • Re-profiling runner
  • Guide vein pot re-boring
  • Check plate machining
  • Cover location face machining
  • Turbine alignment inspections using laser tracker
  • Shaft bearing machining

Location:
Askim, Norway

Mission:
Solbergfoss Hydropower, Norway

Challenge:
Turbines are leaning approx 2mm. Leakage has occurred, operating efficiency down to 75%.

Solution:
Insitu machining of a split ring to correct the error - with a tolerance of 0.0 - 0.1mm.

A 4 tonne Metalock designed boring/facing machine was taken down to the turbine chamber. 17 meters under water level.

The machine was set up with 0.02mm perfection using laser control.

Result:
The work was carried out on 21 days. The turbine can operate for 50 more years, The operating efficiency is now 90%.

Hydropower Turbine Repair

Metalock in Action

SE Asian Generator - orbitally machine rotor shaft
LP Turbine - Casings in-situ machining for retrofit upgrades
Large Boring Bar - 12m bar for big casings
Hydro Stations - various in-situ machining operations
ESB Turbine - casing rebore for reblading
Drax PS - intricate on-site machining
Czech Turbine - machine, weld, remachine blade slots
Culligran Hydro - complex runner chamber profile machining
Cottam Power Station - 4.5m girth ring gearwheel tooth recovery
Anglian Water - 12" pump overhaul
Turbine Cylinder Repair
On site machining Generator Collector Ring Regrind
Hydro Turbine 3D scan
In situ re-machining of a HP/IP/LP turbine horizontal joint face
Hydro Electric Power Station, North Wales
Portable centre lathe machining a large hydro turbine shaft
160MW Gas Turbine Cylinder Boring
Metropolitan Vickers Hydro Turbine casing repair
Generator Rotor Journal Diameter re-machined in situ
Journal Bearing on a Generator Shaft and Neck Bearing of a Pebble Mill
Cutting of a generator shaft’s clutch with diamond band saw technology
Re-turning of a Slot for a LP Turbine Housing’s Erosion-Protection Ring
Re-turning of a Water Turbine
Crack Repair of a Drawing Die Longitudinal Support
Metalock close to Himalaya!
Video Hydro Machining
Video Turbines are leaning approx 2mm. Leakage has occurred, operating efficiency down to 75%.
Download Metalock Group Power Generation Presentation
Image Steam Turbine bearing inspection

Serving the Power Industry Worldwide

Our convenient one-stop range of services, 24/7 global responsiveness and unparalleled sector expertise are the key to cost-effective repairs and modifications for strategically important Power Generation infrastructure.

Get in contact

How can we help you? We offer a 24/7 worldwide emergency response. Please select from the options below to contact us.

Submit an Enquiry Office Locations Quick Contacts Careers