Uptower See all →
Yaw Ring Teeth Repair Patented in-nacelle machining. The ring is repaired where it stands - no removal, no crane. Rotor Lock Repair Full rotor lock seat restoration in-nacelle. No component removal required. Bolt Removal & Thread Repair Failed or seized bolts removed and threads recovered without replacing the host component. Yaw Sliding Surface Refurbishment On-site refurbishment of worn yaw sliding surfaces. No yaw ring exchange, no crane. Yaw Gear Mounting Flange Repair Worn yaw drive mounting flanges and damaged threads repaired uptower. Brake Disc Repair Damaged brake disc sections milled out and replaced uptower. Generator Shaft Repair Worn generator shafts machined back to tolerance in place. No generator replacement.
Blade See all →
Blade Root Repair Restore damaged blade root inserts onsite, reducing downtime from months to days Blade Root Bushing Replacement Worn or fatigued blade root bushings replaced in-situ without scrapping the blade. Blade Surface Milling 3D milling of damaged blade areas to an exact surface - uptower or on ground.
Support Structures & Flanges See all →
Monopiles & TPs Sub-millimetre flatness on monopiles and transition pieces. Precision machining performed before installation. Tower Flanges Tower section flange flatness restored on-site. No re-fabrication, no transport. Sea Fastening Machining sea fastenings and towers stands to the required tolerances without transporting the structures to a workshop.
General Industry See all →
Press Platen Machining On-site machining of press platens and beds. Flatness restored without disassembling the press. Line Boring Portable line boring for large bores in-situ. Heavy industry, marine, energy. Axle & Shaft Repair Worn or damaged axle and shaft journals restored on-site. No removal, no replacement. Industrial Flange Machining Sub-millimetre flatness restored on site for industrial flanges on large production machinery.
Measurements See all →
Easy-Laser Measurement Easy-Laser alignment and geometric measurement. Flange flatness, tilt, shaft and machine alignment - verified and documented on site. Laser Tracker Measurement Portable laser tracker measurement of large components. Hole patterns, reference points, machine alignment and flange geometry - up to 0.05 mm. 3D Scanning Handheld ZEISS 3D laser scanning on site. Reverse engineering, CAD comparison, wear and damage analysis - metrology-grade digital documentation.
Custom Solutions Can't find your repair? We design bespoke solutions for unique geometries - wind or industry.
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Press coverage

Windtech International features CNC Onsite’s yaw ring repair method

Press coverage

Yaw ring repair

Up-tower yaw ring repair is now possible; no need to replace the whole yaw ring

Windtech International featured Søren Kellenberger‘s article on up-tower yaw ring repair. In that technical article, Søren explained the repair process in detail, including the machine’s ability to work sideways, an important part of the patent.

Windtech International,  a worldwide magazine and website for the wind energy industry, has a technological focus.

The article was written exclusively for Windtech International, which offers paying readers the chance to read the full article placed here.

 

 

 

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Yawring_repair3_530x330
yaw ring repair2
Yaw ring in-situ repair allows technicians to machine the yaw ring up-tower

CONTACT US

For further technical information and illustrations.

Søren Kellenberger

Sales Director

+45 25 53 76 50 | ssk@cnconsite.dk

Soren Schmidt Kellenberger
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