What certifications do you have?

We are certified with ISO system, PED certificates, and TUV certification.

What is the maximum size you can produce?

We can manufacture products up to 5000mm in diameter and 30000kg in weight in one completion.

Customized Carbon Steel Long Weld Neck Flange

Name: Customized Carbon Steel Long Weld Neck Flange
Brand: Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.
SKU: 2189688975

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

US$5.00

1 Piece

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Transport Package

Polycase

Specification

TUV NORD

Model NO.

DHAN

Trademark

DHDZ

Origin

Shanxi

Production Capacity

150, 000 Ton

Key features

Extensive Material Options: Available in Carbon, Stainless, Alloy, Heat-resistant, Bearing, and Gear steels with various grades.

Customization Capability: Offers standardization and customization for flanges and forgings to meet specific requirements.

Large Scale Production: Can produce products up to 5000mm diameter and 30000kg weight in a single completion.

Comprehensive Certifications: Holds ISO system, PED certificates, and TUV certification for quality assurance.

Advanced Manufacturing Equipment: Equipped with 8000-ton pressure machine, multiple hammers, and 50 machining units.

Global Market Experience: Serves clients in over 15 countries across EU, USA, Gulf, UK, South America, and Asia.

Strict Quality Control: Features complete testing including optical microscopy, ultrasonic, and magnetic particle inspection.

OEM and ODM Services: Provides both OEM and ODM services with dedicated R&D engineers.

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: ≤0.01h 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.