In the high-intensity world of global mining operations, equipment downtime is measured in thousands of dollars per minute. As a leading China WCB steel castings for mining parts supplier, Junlong Machinery Co., Ltd. understands that metallurgical integrity is the bedrock of operational efficiency. WCB (Wrought Carbon Steel, Grade B) is the industry standard for components requiring a balance of weldability, toughness, and moderate strength.
From crusher liners and excavator teeth to complex valve bodies for oil and gas extraction, our WCB castings are engineered to withstand extreme abrasive environments and cyclic loading. We provide macro industry solutions that go beyond simple manufacturing, offering full-lifecycle support for global mining giants and equipment OEMs.
WCB steel (ASTM A216) offers superior ductility compared to higher carbon steels, preventing catastrophic brittle failure in cold-climate mining sites or high-impact applications. Our process ensures a refined grain structure, essential for fatigue resistance in heavy-duty machinery.
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.
We specialize 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.
Using MAGMAsoft and other simulation tools, we predict shrinkage and porosity before the first drop of molten steel hits the mold. This "digital twin" approach reduces waste and ensures the structural integrity of complex mining components.
Equipped with internationally advanced automated casting production facilities and comprehensive physical and chemical analysis equipment, we enhance manufacturing efficiency and product quality stability.
Future casting focuses on low-carbon footprints. Junlong is investing in waste sand reclamation and energy-efficient induction furnaces to meet the ESG requirements of our European and American partners.
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, full-process quality control, and professional engineering support, we ensure high-quality, high-reliability casting solutions.
From initial design concepts to final product delivery, all key processes are completed in-house:
Customer Value: This eliminates communication costs and quality risks associated with multi-factory collaboration, enabling full-process quality traceability.
As a key supplier to high-tech industries, we maintain stringent compliance with ISO 9001, TS 16949, and UL certifications. This ensures that every WCB steel casting meets or exceeds international standards for safety and performance.
Our 60,000m² facility is a powerhouse of precision, utilizing automated shell making, vacuum induction melting, and advanced thermal treatment lines.
Forging strong mechanical backbones for excavators, loaders, and cranes to conquer extreme conditions.
High-reliability castings for braking systems and structural components in global freight and passenger rail.
WCB and Alloy steel components designed for high-pressure, corrosive oilfield environments.
Contact Junlong Machinery today for a technical consultation on your mining casting requirements.
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