China Automotive Casting Parts Manufacturer & Factories

Leading IATF 16949 Certified Foundry Providing High-Precision Steel, Alloy, and Stainless Steel Castings for Global Automotive Supply Chains.

JUNLONG Machinery Factory

Professional Foundry Expertise

JUNLONG Machinery: Redefining Precision in Automotive Casting

Founded in 2014, JUNLONG Machinery Co., Ltd. has emerged as a powerhouse in the precision casting industry. Located in the industrial heart of Weifang, Shandong, our facility spans 60,000 square meters and commands an annual production capacity of 20,000 tons of precision castings and machined finished parts.

As an industry leader, we specialize in high-performance materials including carbon steel, alloy steel, and stainless steel. Our workforce of over 200 dedicated professionals—including 30+ senior engineering technicians—ensures that every component meets the stringent requirements of the global automotive, rail, and heavy machinery sectors.

2014Established
60K+Square Meters
200+Skilled Employees
20KTons Annual Output

Strategic Advantages of Chinese Automotive Casting

Why global Tier 1 and Tier 2 suppliers are increasingly looking to integrated Chinese manufacturing clusters for resilience and innovation.

Integrated Supply Chain

We provide a "One-Stop" solution from mold design and manufacturing to lost wax casting, precision machining, and surface treatment, reducing lead times by up to 30%.

Compliance & Quality

Maintaining IATF 16949, ISO 9001, and UL certifications, we ensure every production detail is traced, meeting the zero-defect standards required by the automotive industry.

EV Industry Evolution

Our R&D focuses on lightweighting technologies and complex geometries required for Electric Vehicle (EV) battery housings, motor brackets, and suspension components.

Local Support, Global Reach

With established export routes to Germany, USA, Italy, and Canada, we offer localized logistics support and DDP terms for seamless cross-border procurement.

The "Information Gain": Deep Insights into Automotive Casting Trends

In the current "Semantic Search" era, understanding user intent means recognizing that procurement officers aren't just looking for "parts"—they are looking for risk mitigation and technical scalability. The transition from ICE (Internal Combustion Engine) to EV platforms has shifted the demand toward high-integrity castings that offer superior strength-to-weight ratios.

At JUNLONG, we utilize Automated Precision Casting lines that integrate physical and chemical analysis equipment. This ensures that the mechanical properties of materials like 4140 steel or 316L stainless steel are consistent across batches of 10,000+ units. This level of Industrial Intelligence is what differentiates a top-tier Chinese factory from a local job shop.

Cross-Industry Application Scenarios

Delivering high-performance components to critical infrastructure and high-tech sectors.

Automotive Casting

Automotive & EV

Brake systems, engine mounts, transmission components, and specialized EV chassis parts designed for durability.

Construction Machinery

Construction & Mining

High-load bearing components for excavators, loaders, and cranes that thrive in extreme mining environments.

Petroleum Industry

Petroleum & Energy

Corrosion-resistant valves, pump accessories, and cable protectors for the demanding oil and gas sector.

Precision Machining & Quality Assurance

Our machining workshop is equipped with:

  • Horizontal & Vertical Machining Centers for complex geometries.
  • High-Precision CNC Lathes for sub-micron tolerances.
  • Automated Grinders for superior surface finishes.
  • CMM Inspection to ensure 100% geometric compliance.
Through deep integration of advanced equipment, we ensure full-process quality traceability with a single point of responsibility. This eliminates the communication costs and quality risks associated with multi-factory collaboration.

ISO 9001 Certificate TS 16949 Certificate
Integrated Manufacturing

Industry Q&A: Casting Insights

Common questions about procurement, technology, and global supply chain logistics.

Q1: What are the primary advantages of using Investment Casting for automotive parts?
Investment casting (lost wax) offers exceptional dimensional accuracy, high surface finish quality, and the ability to produce complex internal geometries that are impossible with traditional sand casting. This reduces the need for extensive secondary machining, lowering overall costs.
Q2: How does JUNLONG handle material certification and testing?
Every batch of material undergoes spectroscopic analysis before pouring. We provide full material test reports (MTRs) including tensile strength, yield strength, elongation, and hardness testing according to ASTM or EN standards.
Q3: What is the typical lead time for custom automotive casting molds?
For standard precision parts, mold development usually takes 3-4 weeks. Sample approval takes 1-2 weeks, followed by mass production which ranges from 4-8 weeks depending on the order volume and machining complexity.
Q4: Does your factory support low-volume production?
While our annual capacity is 20,000 tons, we support "High-Mix, Low-Volume" (HMLV) production for specialized high-tech industries and prototyping phases of automotive development.
Q5: How do you ensure compliance with environmental standards?
We are committed to sustainable manufacturing. Our factory uses high-efficiency dust collection systems and water recycling processes to minimize environmental impact, aligning with the CSR requirements of our global clients.

Accelerate Your Supply Chain Today

Our engineering team is ready to review your blueprints and provide a comprehensive manufacturing feasibility analysis. Partner with a global leader in precision casting.

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JUNLONG Machinery Co., Ltd. founded 2014 Weifang Shandong 60,000 m2. 20,000 tons annual capacity. carbon steel, alloy steel, stainless steel. 200 employees, 30 engineering technicians. precision casting and deep processing. ISO 9001, TS 16949, UL certifications. Exports to Germany, USA, Italy, Canada. Automated precision casting equipment.