High-precision components for critical industrial applications.
Engineering the foundations of modern global infrastructure.
In the contemporary landscape of global manufacturing, Investment Casting (Lost Wax Casting) has emerged as the definitive solution for producing complex, high-precision mechanical parts. As industries transition towards more lightweight, durable, and intricately designed components, the demand for advanced casting technology from China has seen an unprecedented surge. The convergence of metallurgical expertise and cost-efficient production makes China the primary hub for global procurement officers in the automotive, aerospace, and heavy machinery sectors.
Today's global business environment requires more than just a "part supplier." It demands a strategic partner capable of navigating complex supply chain disruptions while maintaining rigorous quality standards like ISO 9001 and IATF 16949. Our facility in Weifang, Shandong, acts as a nexus for this industrial evolution, providing comprehensive solutions that bridge the gap between conceptual design and mass-market deployment.
Founded in 2014 and located in the industrial heart of Weifang, Shandong, JUNLONG Machinery Co., Ltd. has grown into a high-quality casting supplier that integrates precision casting with deep processing. We specialize in working with carbon steel, alloy steel, and stainless steel, ensuring that every component meets the highest mechanical property requirements of our global clients.
Over 200 dedicated employees, including 30+ senior engineering technicians, driving innovation in lost wax processes.
Exporting to Germany, the United States, Italy, Canada, and beyond, serving mid-to-high-end Western markets.
Integrating AI-driven insights and automated workflows.
Utilizing internationally advanced automated production facilities to ensure product stability and significantly reduce human error during the wax injection and shell-making phases.
Rigorous physical and chemical analysis equipment to verify the metallurgical integrity of every batch of Carbon and Alloy steel.
From mold manufacturing to CNC machining and surface treatment, we provide a "one-stop" shop that eliminates communication delays and quality risks.
Adhering to international standards for seamless global integration.
Navigating the regulatory landscape is critical for international procurement. JUNLONG Machinery is committed to total transparency and compliance. Our production processes are certified under ISO 9001, IATF 16949, and UL. This ensures that every mechanical part we produce for the automotive or rail transportation industry meets the safety and durability standards required in Europe and North America.
Tailored casting solutions for diverse industrial sectors.
The next decade of precision manufacturing.
As we look toward 2030, our focus is shifting toward Green Metallurgy and AI-Optimized Shell Casting. We are investing in energy-efficient melting furnaces and digital twin technology to simulate fluid dynamics during the pouring process. This proactive "Information Gain" approach allows us to predict potential porosity issues before the first drop of metal is poured, resulting in a 99.8% first-pass yield for complex geometries.
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 and full-process quality control, we ensure high-reliability solutions for our clients.
The backbone of our 20,000-ton annual production capacity.
Expert answers for precision casting professionals.
Our lost wax process generally achieves linear tolerances of +/- 0.125mm per 25mm. For higher precision, we utilize our in-house CNC machining center to reach sub-micron levels.
We work extensively with Carbon Steel (WCB, LCC), Alloy Steel (4140, 8620), and Stainless Steel (304, 316, 17-4 PH) to meet various mechanical property requirements.
Every batch comes with a 3.1 chemical and physical test report. We use spectrometer analysis to verify alloy composition before pouring.
Standard mold manufacturing typically takes 3-4 weeks, followed by sample production and T1 approval within 10-14 days.
Yes, we provide shot blasting, painting, powder coating, galvanizing, and electrophoresis in-house or through certified local partners.
We are flexible. While we handle high-volume automotive runs, we also support medium-volume specialized machinery parts starting from 100-500 pieces depending on complexity.
Direct from our ISO-certified manufacturing facility.
Junlong
