Wind Power Flanges
Tower flanges and transmission tower flanges forged for the life of the structure
What Wind Power Flanges Is and Who It Is For
Wind flanges join and support tower sections and are built to last throughout the life expectancy of the wind power generator. The same forging programme covers flanges for transmission poles and towers, used for new generation projects, grid extension, maintenance and repair.
Key Benefits
- Forged construction sized for the design life of the tower
- Grades taken from the wind power material list rather than from general stock
- Large diameter capacity with machining in house
- Transmission tower flanges from the same line as turbine flanges
| Wind power materials | 4140, 4340, S355NL, S420NL, 42CrMo4, 18CrNiMo7-6, 30CrNiMo8, 34CrNiMo6, A350-LF6, 1552 |
|---|---|
| Applications | tower section joining, transmission poles and towers |
| Delivery conditions | forged, normalised, rough machined, quenched, tempered |
| Machining | CNC machining centre for big components |
Who It Is For
- Tower fabricators
- Wind farm EPC contractors
- Transmission line hardware suppliers
- Maintenance contractors on grid extension work
Problems It Solves
- Flange flatness deviations open gaps in the bolted joint
- Plate cut flanges lack the through thickness properties the joint needs
- Repair projects need single flanges quickly, not mill quantities
Technical Features
- Forged flange bodies
- Machined faces and bolt holes
- Materials from the wind power grade list
- Single pieces and series both accepted
Where Wind Power Flanges Is Used
Tower section joint flanges for wind turbines
Tower section joint flanges for wind turbines
Bottom and top flanges in tower assemblies
Bottom and top flanges in tower assemblies
Flanges for transmission poles and towers
Flanges for transmission poles and towers
Flange replacements for maintenance and repair projects
Flange replacements for maintenance and repair projects
Materials
- S355NL
- S420NL
- 4140
- 4340
- 42CrMo4
- A350-LF6
Quality Control
- Flatness of the mating face checked before shipment
- Bolt hole pattern verified against the drawing
- Material and heat treatment certificates supplied
Customization Options
- Diameter, thickness and bolt pattern to drawing
- Machined or rough forged delivery
- Single replacement flanges for repair work
How We Make It
Flange drawing review
Open die forging
Normalising or quench
Normalising or quench and temper
Face
Face and bolt hole machining
Flatness inspection
How It Compares
A forged flange carries better through thickness properties than a plate cut one, which is what a bolted tower joint loads in service.
Use Guide
- Send the bolt pattern and the flatness requirement together
- Say whether the flange is for new build or for a repair with an existing mating face
- Confirm the grade from the project specification
Often Ordered Together
Forged Flanges
Flanges rolled rings and discs for pumps valves wellheads and pressure equipment
View details
Wind Power Gear Rings
Forged rings for wind turbine gears in case and through hardening grades
View details
Wind Power Main Shafts
Forged main shafts couplings and bearing blanks for turbine drivetrains
View detailsWhere To Read More
Questions Buyers Ask About Wind Power Flanges
Are flanges supplied machined?
Yes, machining of faces and bolt holes is part of the one stop package.
Do you supply transmission tower flanges too?
Yes, for new generation, grid extension, maintenance or repair.
Which materials are typical?
S355NL, S420NL, 4140, 4340, 42CrMo4 and A350-LF6 among the wind power grades.
Get a Quote for Wind Power Flanges
Send the drawing, the quantity and the delivery condition you need. We reply with price, lead time and a sample plan.