Zhangjiagang Guangda Special Material Co., Ltd.
Leading manufacturer of advanced materials and products for high-end equipment
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Wind Turbine Gears Forged Gear Blanks Planetary Rough Machined Gear Forgings
Wind power gear is one of the components with the highest technical content in wind turbines. Through continuous and high starting point technical transformation. Guangda has introduced world-class high-precision equipment, established a complete quality management system and after-sales service network, and dedicated itself to providing users with high-quality products. Quality products and satisfactory service.
Wind turbine gears 18CrNiMo7-6 products features
| Material | 18CrNiMo7-6 |
| Process | EAF+LF+VOD+Forging+Rough machining+QT+Finish machining |
| Diameter | Max 5000mm |
| Delivery state | Rough blank, semi-finished blank,finishing gears |
| Surface | Black, peeled, polishing, bright, sand blast, hair line, etc. |
| Application | Used for wind turbine gear box ,industril gear box,Generator, transmission, reduction motor, equipment transmission etc. |
Wind turbine gears 18CrNiMo7-6 chemical composition
| Chemical Composition | ||||||||||||||||
| Element | C% | Si% | Mn% | S% | P% | Mo% | Cr% | Ni% | Cu% | AL% | H | O | V% | Ti% | N* | Nb% |
| Scope | 0.15-0.21 | 0.15-0.30 | 0.05-0.90 | ≤0.015 | ≤0.010 | 0.25-0.35 | 1.50-1.80 | 1.40-1.70 | ≤0.20 | 0.02-0.04 | ≤1.8ppm | ≤10 ppm | 一 | ≤0.01 | 75-125 ppm | 0.015-0.05 |
Wind turbine gears 18CrNiMo7-6 Technology
The vast number of high-purity and high-performance wind power gear steel production technology. High-purity and high-performance wind power gear steel 18CrNiMo7-6 material flaw detection requirements,grain size, high purity are the key technical points.
| Acceptance rate 0.8mm flaw detection | 100% |
| Purity and stability | EVA≤200 |
| UT | DIN EN10228 Quality-Class 3 C/c or D/d |
| Grain size | Reach grade 8 after being kept at 950 degrees for 80 hours without mixed crystals |
Wind turbine gears 18CrNiMo7-6 procedure
Forging process flow quality control: Raw material steel ingot into warehouse(test the chemical content) → Cutting→ Heating(Furnace temperture test) → Heat treatment after forging(Furnace temperture test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal diamention, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment
High-precision dimensional tolerance;Excellent mechanical properties;Produce different dimension based on customer’s requirements;Advanced manufacture equipments and inspection devices;Excellent technical personality;Control the production procedure strictly;Pay attention on the package protection;Quality full service.
Wind turbine gears 18CrNiMo7-6 Manufacture Capacity
| Company type | Science and Technology innovation board listed company. Stock code :688186 |
| Completed supply chain | Guangda is an leading and integrated steel manufacturer from smelting, forging, heat treatment to precision smart manufacturing . |
| Shape | Ring, Shaft, disc, round plate, Dysplasia forgings etc. |
| Smelting | Smelting capacity 500,000.00 ton/year . With own smeliting line of carbon steel,stainless steel, alloy steel and special steel . |
| Annual capacity for the forgings | Forging capacity 300,000.00 ton/year . With own professinal forging press machines 5000ton,4500ton,4000ton,3600ton,2000ton,1000ton and ring rolling mill machines and could manufacture the forging blank ourselves. |
| Machining | Turning, milling, boring ,grinding, finished machining, gear shaping ,gear hobbing, gear grinding capability. |
| Heat treatment | Own professional equipment for heat treatment for Annealing ,Normalizing ,Tempering ,QT, Isothermal annealing,Stress relief , Nitriding , Carburize ,Case-hardening etc |
| Surface treatment | High-pressure cleaning, sand blasting and thermal spraying. Complete surface treatment capability. |
Guangda is a leading and integrated steel manufacturer from smelting, forging,casting, heat treatment to precision smart manufacturing . We could provide rough blank or semi-finishing or precision finishing parts for the wind power industry .
Guangda mainly focus on new energy wind power parts such as large offshore wind turbine castings, wind turbine forgings and wind turbine gearbox parts.60% of our business are for wind power parts . NGC, Flender, Shanghai electric ,CRRC, ZF, Mingyang ,DEC,Windey are all Guangda long cooperation customers in the wind industry.
Based on the powerful overall solution, Guangda uses advanced smelting, forging, heat treatment technology and metal processing technology to connect the upstream and downstream industrial system.
According to the different demands of customers for products, we provide users with integrated product design, processing, assembly and other services, and provide customers with overall solutions and value maximization.
| Wind turbine casting parts | Rotor Hub, Nacelle head carrier , Main carrier, Main shaft ,Shaft sleeve, Torque arm ,Shell frame, Support base , Yaw base plate, Planet carrier ,Cover, Frame, Ring , Tower connection part, Nacelle connection part, All kinds of the structure parts for the widn turbines . |
| Wind turbine forging parts | Main shaft, Flange, Yaw flange ,Rolled Ring, Flanges , Gear box parts etc. |
| Wind turbine gear box parts | Torque arm ,Planet shaft, Sun shaft, Planet gear, Internal gear, Planet carrier, Gear box cover etc. |
| Products type | 2MW 3MW 3.2MW 3.6MW 4MW 4.5MW 5MW 5.5MW 6.25MW 7MW 8MW 8.3MW 11MW 12MW 16.6MW etc |
Wind Turbine Gears
Forged Gear Blanks
Gear Forgings