Custom Stainless Steel Precision Casting Foundry

Global Tier-1 Supplier for High-Performance Metallurgy & Advanced Investment Casting Solutions. Delivering Excellence Across Automotive, Aerospace, and Industrial Engineering.

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Global Industry Outlook & Macro Dynamics

Strategic Market Evolution

The global stainless steel precision casting market is undergoing a massive shift toward "high-complexity, low-weight" components. As of 2024, the demand for lost wax casting (investment casting) is being driven by the resurgence of aerospace manufacturing and the rapid electrification of the automotive sector.

Supply Chain Resilience

Foundries are transitioning from simple component manufacturers to Full-Service Integration (FSI) partners. China remains the dominant hub, providing over 45% of the global output, with a strategic focus on IATF 16949 compliance and green manufacturing initiatives.

Material Engineering

The utilization of 316L, Duplex 2205, and specialized alloy steels is increasing in harsh environment applications like offshore drilling and hydrogen energy infrastructure, where corrosion resistance and structural integrity are paramount.

JUNLONG Factory
Since 2014

JUNLONG Machinery Co., Ltd.

Located in Weifang, Shandong, our facility covers 60,000 square meters. We are a premier high-quality casting supplier integrating precision investment casting and deep processing. With an annual capacity of 20,000 tons, we specialize in carbon steel, alloy steel, and stainless steel.

2014 Founded
60k+ Area (m²)
200+ Employees
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Technology Roadmap & Future Horizons

Digital Twin & AI Simulation (2024-2025)

Utilizing ProCAST and MagmaSoft for solidification simulation to eliminate casting defects (porosity, shrinkage) before the first mold is even created. This reduces "Time-to-Market" by 40%.

3D Wax Printing & Rapid Prototyping

Eliminating traditional tooling for small-batch high-precision components. This allows for complex internal geometries that are impossible with standard machining.

Eco-Friendly Smart Foundry

Implementing closed-loop wax recovery systems and induction melting with zero-carbon goals, aligning with European and American ESG requirements for global supply chains.

Surface Integrity 2.0

Advanced PVD coating and electropolishing integrated directly into the foundry workflow to meet medical and semiconductor-grade cleanliness standards.

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Localized Application & Sector Solutions

Agricultural Machinery

Agricultural Machinery

Custom lost wax casting agricultural machinery components for farming equipment, harvesters, and tractors. Focus on high-impact resistance and wear durability.

Petroleum

Petroleum & Energy

Supplying corrosion-resistant ESP cross-coupling cable protectors and pump valve accessories for deep-sea and shale extraction environments.

Automotive

Automotive & Rail

Key supplier for high-tech precision castings for rail transportation, engine mounts, and structural chassis components for global leaders in Europe and America.

Full Industrial Chain Integration

We are not just a casting supplier, but a one-stop precision manufacturing partner from concept to finished product. Through deep integration of advanced equipment, full-process quality control, and professional engineering support.

  • 1. Mold Manufacturing: Source-level accuracy.
  • 2. Precision Casting: The core investment casting process.
  • 3. CNC Machining: Equipped with horizontal/vertical machining centers.
  • 4. Surface Treatment: Professional finishing to spec.
Machining Center
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Advanced Equipment & Quality Assurance

Ensuring process control over every production detail with world-class certifications.

Equip 1 Equip 2 Equip 3 Equip 4

Certifications: ISO 9001 | TS 16949 | UL

Cert 1 Cert 2

Frequently Asked Questions (FAQ)

What are the primary benefits of stainless steel investment casting?

It provides exceptional surface finish (Ra 3.2 or better), high dimensional accuracy (CT4-CT6), and the ability to cast complex geometries that would be impossible or too expensive to machine. It also allows for a wide range of material choices including 304, 316, and heat-resistant steels.

How do you ensure the internal quality of the castings?

We utilize physical and chemical analysis equipment, including spectral analysis, X-ray inspection, magnetic particle testing, and ultrasonic testing to ensure no internal defects such as cracks or inclusions exist.

What is your typical lead time for custom foundry projects?

For new mold development, sample production typically takes 3-4 weeks. Once the sample is approved, mass production usually takes 4-6 weeks depending on volume and secondary machining requirements.

Do you provide design optimization for casting?

Yes, our engineering team of over 30 technicians offers DFM (Design for Manufacturing) support to help clients optimize parts for the casting process, reducing weight and cost while improving structural integrity.

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