Manufacture of steel towers for wind turbines: cutting, steel construction, coating and final assembly in Leipzig.
SIAG Tube & Tower GmbH
LeipzigNew on Amplifa
About SIAG Tube & Tower
SIAG Tube & Tower GmbH manufactures steel towers for onshore wind turbines in Leipzig. The value chain comprises the cutting of steel plates by oxy-fuel cutting with weld seam preparation and plasma marking, the production of tower sections in steel construction, blast priming as well as primer and topcoat finishing, and finally final assembly with mechanical and electrical components. Every year, more than 2,500 plates and over 20,000 tonnes of steel are cut, more than 50,000 metres of weld seam are produced and around 220,000 square metres of surface are coated. The sections are up to 35 metres long and weigh 80 tonnes; over 100 onshore towers leave the plant each year. SIAG supplies customers in Germany and Europe across 28 delivery countries and has been a partner of the energy transition for more than 30 years.
- Site
- Leipzig
- Processes
- Plate cutting (oxy-fuel welding with weld seam preparation, plasma technology marking, grinding), Steel construction / weld seam production into tower sections, Preparation (pre-cutting/pre-fastening), Coating (preparation, primer and topcoat finishing), Final assembly of wind tower sections (mechanical and electrical components), Cutting (oxy-fuel cutting, plasma technology), Steel construction/welding, Coating (blast priming, primer and topcoat finishing)
- Materials
- Steel, Oxy-fuel cutting, Plasma technology, Welding, Coating, Final assembly
- Certificates
- In-house inspection personnel
- Employees
- 124
- Industries
- Wind energy (onshore towers)
- 01
Cutting (oxy-fuel cutting, plasma technology, grinding, measuring)
- 02
Steel construction / welding into tower sections
- 03
Blast priming
- 04
Primer and topcoat finishing
- 05
Final assembly (mechanical and electrical components)
- 06
Final cleaning and transport preparation
- 07
Quality inspection
Materials & Processes
Steel
Base material of the tower sections; over 20,000 t of plate cutting per year.
Oxy-fuel cutting
Cutting of weld seam preparation on steel plates during cutting.
Plasma technology
Marking of the cut plates before steel construction.
Welding
Over 50,000 m of weld seam per year into sections up to 35 m in length and 80 t in weight.
Coating
Blast priming, primer and topcoat finishing for life-cycle durability of the wind turbine.
Final assembly
Installation of mechanical and electrical components after the coating has cured.
Locations
Leipzig
DEProduction plant for tower manufacturing (cutting, steel construction, coating, final assembly)
- Part weight / size
- Sections up to 80 t, 35 m in length
- Lot size
- >2,500 plates/year, >100 towers/year
- Materials
- Steel
- Oxy-fuel cutting system
- Plasma technology
- Welding technology
- Two coating lines (blast priming, primer/topcoat finishing)
- Assembly area
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Plate cutting (oxy-fuel welding with weld seam preparation, plasma technology marking, grinding)Machining | – | – | – | 2,500 plates/year | Steel |
| Steel construction / weld seam production into tower sectionsJoining | – | 35 m | 80 t | over 50,000 m of weld seam/year | Steel |
| Preparation (pre-cutting/pre-fastening)Joining | – | – | – | – | Steel |
| Coating (preparation, primer and topcoat finishing)Surface | – | – | – | 220,000 m²/year | Steel |
| Final assembly of wind tower sections (mechanical and electrical components)Assembly | – | – | – | over 100 towers/year | Steel |
Additional services
Quality
In-house inspection personnel safeguard quality in steel construction and ensure the requirements of the subsequent coating. Coatings are inspected for layer thickness and quality, and plates are ground and measured after cutting.
| Evidence | Leipzig |
|---|---|
| In-house inspection personnel |
History
Over 33 years of experience in tower manufacturing; a partner of the energy transition for more than 30 years.
To date, 4,690 towers delivered to 28 delivery countries.