What standards do your flanges and rings comply with?

We comply with ASME, ANSI/DIN, BS, JIS, EN, and other international standards. Dimensions range from DN15 to DN4000mm and pressure classes from 150 to 2500.

How are the products packaged for export?

We use standard export packaging with plywood cases on the outside and plastic cloth on the inside, or as per customer requirements.

Large Diameter Steel Ring Roller Slewing Support External Gear

Name: Large Diameter Steel Ring Roller Slewing Support External Gear
Brand: Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.
SKU: 2151264845

Shanghai, ChinaShanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.

US$18.00

1 Piece

Product profile

Customization

Available

Processing Object

Metal

Molding Style

Forging

Model NO.

Ring-10

Molding Technics

Pressure Casting

Application

Hardware

Material

Aluminium

Heat Treatment

Quenching

Surface Treatment

Passivation

Forging Tolerance

+/-0.5mm

Certification

CE, ISO 9001:2008

Transport Package

Plywood Case/Brandrith

Specification

TUV

Trademark

DHDZ

Origin

China

HS Code

73261910

Production Capacity

15000 Tonnage Per Year

Key features

Large Diameter Capacity: Capable of producing rings up to 5000mm diameter and 9000kg weight in one piece.

Wide Material Selection: Supports Carbon, Stainless, and Alloy steels including ASTM, DIN, and JIS standards.

Dual Certification: Products are dual certified to ASME/ASTM SA/A182 and EN10222-5 or DIN17440.

Customization Available: Offers OEM/ODM services and customization with customer drawings for rings and flanges.

20 Years Experience: Over two decades of manufacturing experience with advanced technology and craftsmanship.

Strict Quality Control: Complete inspection methods including 12 inspection specialists and TUV/ISO9001 certification.

Comprehensive Standards: Meets international standards like ASME, JIS, BS, ISO, DIN, EN, and GB for various applications.

Global Supply Chain: Guaranteed raw material quality through long-term contracts with major steel factories like Bao Steel.

Company profile

Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2001-06-01 CertifiedNearest Port: Tianjin Port, Shanghai Port, Qingdao PortAverage Response Time: ≤3.27h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryShanxi Donghuang Wind Power Flange Manufacturing Co., Ltd. is identified as a Chinese manufacturer of steel flanges and forgings, with operations associated with Dingxiang, Shanxi, and a Shanghai head office. The supplier reports ISO9001:2015, PED, and TUV-related certifications, five production lines, 6–10 quality-control staff, and annual steel forging and flange productivity of 5,000 tons. It offers standardized and customized products, including multiple flange types, rings, shafts, blocks, disks, and other forgings. Export activity reportedly began in 2001, with exports representing 41%–50% of sales and customers in more than 15 countries. Evidence supports production, certification, customization, and international customer experience. However, after-sales capability is only described as an intended quality-related process, innovation evidence is limited to one year of total R&D engineer experience, and financial credibility cannot be assessed from the provided information.

Supplier typeThe supplier is described both as a trading company and as a manufacturer. Its formal entity information identifies Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd. as a manufacturer, while its business description states that it manufactures and exports flanges and forgings in China.

CertificationsThe supplier reports an ISO9001:2015 certificate and states that it holds ISO-system, PED, and TUV certifications. Its stated compliance scope includes processes, materials, testing, storage, delivery, and after-sales service, although the specific validity and coverage of each certificate are not provided.

Production capacityThe supplier reports five production lines, 6–10 quality-control staff, 60 employees, and annual production of 5,000 tons of steel forgings and flanges. Its product scope includes large flanges, rings, square forgings, shafts, and related components, supporting a demonstrated manufacturing capability.

Customization capabilityThe supplier explicitly identifies standardization and customization as advantages and lists customized flanges and forgings among its offerings. The product range includes multiple flange configurations and forging forms, directly supporting customization capability.

Client casesThe supplier states that it serves clients in more than 15 countries across the EU, USA, Gulf area, UK, South America, Australia, and Asia, and reports export activity beginning in 2001. The provided trade information also identifies a Ukraine-related buyer record registered in June 2025, although detailed project references or customer performance evidence are not supplied.

Product Q&A

Q:What is the maximum size and weight you can produce?

We can produce rings with a maximum diameter of 5000mm, maximum outer diameter of 4500mm, maximum width of 300mm, and a maximum weight of 9000kg in one completion.

Q:What materials are available for these forged rings?

We offer Carbon Steel (ASTM A105, A350, etc.), Stainless Steel (ASTM A182 F304/F316, etc.), and Alloy Steel (ASTM A182 F9/F11, etc.) with various heat treatments like Normalizing, Quenching, and Tempering.

Q:Do you provide OEM and ODM services?

Yes, we provide both OEM and ODM services. Standardization and customization are our advantages, and we can produce products according to customer drawings.

Q:What certifications do your products hold?

Our products are dual certified to ASME/ASTM SA/A182 and EN10222-5 or DIN17440. We also hold ISO9001:2015, TUV, and PED certificates.

Q:What are the payment terms and lead times?

Payment terms include LC, T/T, D/P, PayPal, and Western Union. Lead time is within 15 workdays off-season and one month during peak season.