JUNLONG Machinery Co., Ltd. was founded in 2014. Located in Weifang, Shandong, the company covers a total area of 60,000 square meters and has an annual production capacity of 20,000 tons of precision castings and machined finished parts. It specializes in materials such as carbon steel, alloy steel, and stainless steel.
With over 200 employees, including more than 30 engineering technicians, the company is a high-quality casting supplier integrating precision casting and deep processing. We bridge the gap between complex metallurgical requirements and final industrial application through rigorous quality control.
Medium carbon steel (0.3% - 0.6% carbon content) offers the ideal balance between ductility and strength. Our casting process utilizes advanced vacuum induction furnaces to ensure precise carbon levels, crucial for post-cast heat treatment results.
Equipped with internationally advanced automated casting production facilities and comprehensive physical and chemical analysis equipment, we enhance manufacturing efficiency and product stability while meeting testing requirements for diverse materials.
Moving towards Industry 4.0, we are integrating Digital Twin technology in mold design and AI-driven quality inspection to reduce defect rates to below 0.1%, ensuring sustainable and reliable production for the next decade.
Supply Chain Resilience: Based in Shandong, the heart of China's heavy industry, JUNLONG leverages a robust local supply chain of raw materials and energy. This geographical advantage allows us to mitigate global logistics risks and maintain competitive lead times for our clients in the USA, Germany, Italy, and Canada.
Industrial Status: Currently, the demand for medium carbon steel castings is surging in the renewable energy and infrastructure sectors. As a global casting leader, we provide high-tech precision castings for automotive, rail transportation, engineering machinery, and petroleum sectors.
China Factory Advantages: Unlike traditional sand casting workshops, our "Integrated Manufacturing Capability" means we handle mold manufacturing, investment casting, precision CNC machining, and surface treatment under one roof. This single-source responsibility ensures total traceability and eliminates communication costs.
Forging Strong Mechanical Backbones, Conquering Extreme Conditions. Excavators, loaders, and cranes rely on high-strength, wear-resistant castings to support heavy-duty operations. We produce structurally complex and high-load-bearing components to ensure machinery remains durable in harsh mining and road construction environments.
Our workshop includes horizontal machining centers, vertical machining centers, CNC lathes, CNC milling machines, and specialized grinders. This ensures that every medium carbon steel cast meets the tightest tolerances before it leaves our facility.
JUNLONG has obtained ISO 9001, TS 16949, and UL certifications. These are not just badges; they are the foundation of our process control. We implement 100% spectral analysis and NDT (Non-Destructive Testing) for critical components to ensure reliability in safety-critical applications like rail transit and automotive parts.
Join global industry leaders and partner with JUNLONG for your next precision casting project. Our team is ready to provide technical support and competitive pricing.
Inquiry Now
Junlong
