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JUNLONG Machinery Co., Ltd., established in 2014 and located in Weifang, Shandong, represents the pinnacle of Chinese investment casting expertise. Spanning 60,000 square meters, our facility integrates automated casting with sophisticated deep-processing capabilities. We produce 20,000 tons annually of carbon steel, alloy steel, and stainless steel finished parts.
Our workforce of over 200 dedicated professionals, including 30+ senior engineering technicians, ensures that every component meets the rigorous standards of global industry leaders.
Founding Year
Square Meters
Annual Tons
Pioneering the next generation of metallurgical excellence
We leverage advanced solidification modeling software to predict potential defects before pouring, ensuring a "first-time-right" approach to complex geometries and reducing material waste.
To ensure consistency in ceramic shell thickness and drying, our factory utilizes automated robotic arms, significantly improving the dimensional stability of high-tolerance machinery parts.
Our roadmap includes the integration of 100% wax recycling and energy-efficient induction furnaces, aligning our production with global ESG (Environmental, Social, and Governance) standards.
Why modern procurement managers choose our integrated manufacturing ecosystem
Information Gain: In today's volatile market, supply chain resilience isn't just about speed; it's about transparency and integration. JUNLONG Machinery operates as a "Full Industrial Chain" hub. By controlling mold manufacturing, precision casting, CNC machining, and surface treatment in-house, we eliminate the 30% "latency tax" typically associated with multi-vendor coordination.
Diverse Applications for Critical Structural Components
Providing high-toughness alloy steel castings for suspension systems, brake components, and railway connectors that withstand extreme vibration and stress.
Custom lost wax castings for harvesters, plows, and tractors, designed with superior wear resistance to handle abrasive soil environments.
Precision cast corrosion-resistant stainless steel housings and impellers for oil, gas, and chemical processing facilities.
Heavy-duty structural components for excavators and loaders, engineered for maximum load-bearing capacity and durability.
Robust casting solutions for drilling equipment and ore processing machinery, prioritizing impact resistance in sub-zero or high-heat conditions.
Aesthetic yet structurally sound investment castings for modern facades, glass supports, and decorative industrial hardware.
Our commitment to quality is validated by international standards. We strictly adhere to the following management systems to ensure 100% reliability for our global partners:
Every casting undergoes comprehensive Physical & Chemical Analysis, including Spectrometer Material Testing, Magnetic Particle Inspection (MPI), and Ultrasonic Testing (UT). We don't just supply parts; we provide documented certainty.
Equipped with internationally advanced automated casting facilities
Answering key questions for sourcing directors and engineers
For new projects, mold design and sampling take 2-4 weeks. Once approved, mass production typically ranges from 4 to 6 weeks depending on volume and complexity.
Yes. We have a dedicated CNC machining workshop equipped with horizontal and vertical machining centers, allowing us to deliver "ready-to-assemble" finished components.
We use on-site spectrometers to verify chemical composition before every pour. Heat-treatment certificates and material reports are provided with every shipment.
Our engineering team often collaborates with clients to optimize part designs for casting, reducing secondary machining costs and material waste through "Design for Manufacturing" (DFM) principles.
We specialize in parts from 0.1kg to 100kg. Max dimensions typically fall within 800mm x 800mm x 800mm, though custom solutions are available for specific geometries.
We work with global logistics partners to offer FOB, CIF, or DDP terms. Our documentation team ensures all customs and compliance paperwork is handled accurately to prevent delays.
Meeting the tightest tolerances for the most demanding industries

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Partner with JUNLONG Machinery for world-class precision casting and deep processing. Our engineering team is ready to provide you with a detailed technical consultation and quote.
Request a Custom Quote Now