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Pioneering Special Copper Technology

Yantai Wanlong Vacuum Metallurgy Co., Ltd. (WLVM) – China’s first company to specialize in high-performance copper and copper alloys for aerospace, nuclear power, high-speed rail, and advanced industrial applications.

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WLVM Factory

About WLVM

Founded in 2002 and headquartered in Yantai, Shandong, China, YanTai Wanlong Vacuum Metallurgy Co., Ltd. (WLVM) is the first company in China to focus on “special copper” as its core product line. We are a leader in advanced metallurgy, delivering mission-critical components to global industries.

WLVM owns four core technologies: Vacuum Casting, Special Welding, Material Shaping, and Self-Made Key Equipment. These proprietary processes enable us to produce copper materials with unmatched purity, strength, and performance under extreme conditions.

2002
Founded
4
Core Technologies

Service Areas

Our materials and components are trusted in the most demanding environments across critical global industries.

High-Speed Rail

Nuclear Power

Nuclear Fusion

Aerospace

Military

Metallurgy

Electromechanical

Trusted by Global Leaders

Our products serve some of the world’s most innovative and demanding engineering companies.

SIEMENS
CRRC
ABB
BOMBARDIER
ALSTOM
CSIC
Skoda
Bao Steel

Our Advanced Products

Engineered for performance, reliability, and precision. Explore our range of copper alloys and specialized components.

CuCrZr Contact Line

CuCrZr Contact Line

High-strength, high-conductivity copper-chromium-zirconium alloy contact wire for high-speed rail and electrified transit systems.

  • Material: CuCrZr
  • Application: Overhead catenary systems
  • Features: Wear-resistant, high thermal stability
CuCrZr Rod

CuCrZr Rod

Precision-forged copper-chromium-zirconium rods for high-current electrical connectors and aerospace components.

  • Material: CuCrZr
  • Diameter: 10–100 mm
  • Process: Vacuum melted, forged, aged
Copper Alloy Plate

Copper-Alloy Plate

High-purity copper alloy plates for electrical, thermal, and structural applications in extreme environments.

  • Alloys: CuAg, CuCr, CuBe, CuNiCrSi
  • Thickness: 5–100 mm
  • Finish: Mill, machined, polished
Crystallizing Wheel

Crystallizing Wheel

High-performance copper alloy wheels for continuous casting of steel billets and slabs.

  • Material: CuCrZr, CuAg
  • Diameter: Up to 900 mm
  • Features: High thermal conductivity, crack resistance
Electrode Jaw

Electrode Jaw

Precision copper alloy electrode jaws for resistance welding and electrical clamping systems.

  • Material: CuCrZr, CuCr
  • Features: High strength, low deformation
  • Customizable: Yes, per OEM specs

Vacuum Casting Components

Custom-shaped copper and copper alloy parts produced via vacuum casting for superior purity and density.

  • Process: Vacuum induction melting & casting
  • Weight: 1–500 kg
  • Applications: Nuclear, aerospace, R&D

Amorphous Magnetic Material

High-efficiency amorphous alloy cores for transformers and inductors with ultra-low core loss.

  • Material: Fe-based amorphous ribbon
  • Thickness: 25–30 μm
  • Applications: Energy-efficient power systems

Metallurgy Equipment Parts

Custom copper components for metallurgical machinery, including cooling rolls, guides, and nozzles.

  • Materials: Cu-T2, Cu-TU1, Cu-HCP
  • Processes: Machining, welding, assembly
  • Industries: Steel, non-ferrous metals

Core Technologies

WLVM’s competitive edge comes from our mastery of advanced metallurgical processes and in-house equipment development.

Vacuum Casting

All materials are smelted in vacuum furnaces to eliminate impurities and ensure high purity and homogeneity.

Special Welding

Advanced welding techniques for joining copper alloys with minimal distortion and high structural integrity.

Material Shaping

Precision forging, rolling, and machining to achieve complex geometries and tight tolerances.

Self-Made Equipment

We design and build our own key production equipment, ensuring control over quality and innovation.

2002
Founded
4
Core Technologies
4000
Ton Forging Machine
15+
Expert Review Panels

Latest News

Stay updated with our latest achievements and technological breakthroughs.

April 09, 2020

Copper Chromium Zirconium Contact Line Begins Trial Operation

Yantai Wanlong Vacuum Metallurgy Co., Ltd. (WLVM) has built the world's first batch production line of copper chromium zirconium contact line through independent research and development of core technology and independent manufacturing of core equipment. A review group composed of 15 experts confirmed the technical advancement and industrial readiness of the new line.

April 09, 2020

Expansion of Vacuum Furnace Capacity

WLVM has upgraded its vacuum melting facility with two additional large-scale furnaces, increasing monthly output by 40%. This expansion supports growing demand from high-speed rail and aerospace clients.

April 09, 2020

New Certification Achieved

WLVM has obtained ISO 9001:2015 and AS9100D certifications, reinforcing our commitment to quality management in aerospace and defense supply chains.

Frequently Asked Questions

Find answers to common questions about our materials and processes.

Can you do the non-destructive inspection?

Yes. We have professional inspectors to perform dye-penetrant testing and ultrasonic testing to ensure material integrity.

How do you measure the dimensions of copper endring?

We use a coordinate measuring machine imported from Germany for high-precision dimensional inspection.

Do you have the equipment for forging?

Yes. We operate a 4000-ton forging machine capable of shaping large copper alloy components.

How do you make the materials?

We use various sizes of vacuum furnaces. All materials are smelted under vacuum to ensure purity and consistency.

What materials can you make?

We produce copper materials such as Cu-T2, Cu-TU1, Cu-HCP, and copper alloys including CuAg, CuCr, CuZr, CuAl, CuCrZr, CuBe, CuSi, and CuNiCrSi.

Get in Touch

Have questions about our products or custom solutions? Contact us directly through our official website.

Phone: +86-535-6934726
Mobile: +86-135-6253-5565
Email: [email protected]
QQ: 910711280
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