Industrial Precision Solutions for Demanding Applications
JUNLONG Machinery Co., Ltd., located in the industrial heart of Shandong, China, represents the pinnacle of modern investment casting technology. Spanning 60,000 square meters, our facility is engineered to produce 20,000 tons of high-grade precision castings annually.
We specialize in the meticulous manufacturing of carbon steel, alloy steel, and stainless steel components, integrating the full lifecycle of production from conceptual mold design to high-precision CNC machining.
The global industrial landscape is undergoing a seismic shift toward higher efficiency and longer lifecycle assets. In this context, Pump and Valve accessories castings serve as the circulatory system of modern infrastructure—from oil pipelines in Texas to municipal water systems in Germany. As a leading China manufacturer, JUNLONG Machinery provides the critical information gain required for procurement officers to make informed decisions in a volatile market.
China's dominance in the precision casting sector is not merely about cost; it is about Supply Chain Integration. In Weifang, Shandong, we leverage a concentrated ecosystem of raw material suppliers, specialized heat treatment facilities, and advanced logistics hubs.
For global enterprises, sourcing from our factory means accessing Automated Precision Casting lines that rival European standards but with the agility of Chinese manufacturing. Our integration of mold making, lost wax casting, and deep machining ensures that tolerances as tight as ±0.1mm are consistently met.
Internationally advanced automated production facilities reduce human error and ensure chemical and physical stability across massive batches.
Expertise in WCB, WCC, 4140, and high-chrome alloys. We provide comprehensive spectral analysis for every heat number.
Serving Germany, USA, Italy, and Canada with full adherence to ASTM, DIN, and JIS standards.
We do not just sell castings; we solve engineering challenges. Our Macro Industry Solutions cover five key pillars:
The industry is moving toward "Green Foundry" practices. JUNLONG is investing in waste-sand recycling and energy-efficient induction furnaces to reduce our carbon footprint, a growing requirement for European procurement. Furthermore, the application of 3D-printed wax patterns for rapid prototyping is shortening the R&D cycle from months to days.
Ensuring Quality Through Technical Superiority
ISO 9001 | TS 16949 | UL Certified
For high-pressure applications, we typically recommend WCB (Cast Carbon Steel) or CF8M (316 Stainless Steel). WCB is excellent for general industrial use, while CF8M offers superior corrosion resistance for chemical processing.
We utilize the Lost Wax Investment Casting process. This allows us to create complex internal passages and thin-walled structures that are impossible with sand casting, maintaining tolerances according to ISO 8062 CT4-CT6.
Depending on complexity, mold design and manufacturing take 3-4 weeks. First Article Inspection (FAI) samples are usually delivered within 4-6 weeks after design approval.
Yes. JUNLONG operates a dedicated machining center with vertical and horizontal CNC machines, offering a truly "one-stop" solution from raw casting to finished, assembly-ready parts.
Partner with a world-class precision casting manufacturer. Our engineering team is ready to analyze your blueprints and provide a comprehensive manufacturing solution tailored to your industry's specific needs.
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