Weifang Junlong Precision Foundry: Your Expert in Multi-Industry Precision Casting Solutions

Weifang, Shandong—Weifang Junlong Precision Foundry, a leading precision casting manufacturer in China, specializes in providing high-precision, multi-material casting products and customized solutions for global clients. With advanced casting technologies, strict quality control systems, and extensive industry experience, Junlong Precision Casting has become a key supplier for over a dozen industries, including automotive parts, railway components, petroleum equipment, construction machinery, agricultural machinery, and more.

Core Strengths: Driven by Technology and Production Capacity

Junlong Precision Casting employs advanced molding techniques such as silica sol composite process and water glass composite precision casting, along with investment casting/lost wax casting/dewaxing casting, to achieve casting tolerances as precise as GB/T6414-1999 CT7-CT9 (equivalent to ISO8062 standards) and surface finishes ranging from Ra6.3um-Ra12.5um (machined surfaces can reach Ra0.8um), meeting high-complexity and high-strength industrial demands.

Wide Application Range: Products cover automotive parts, heavy-duty equipment, marine components, solar mounting hardware, electrical fittings, and more. Materials include carbon steel, alloy steel, stainless steel, and can be customized to ASTM, DIN, GB, and other international standards.
End-to-End Capabilities: From casting to machining, heat treatment (normalizing/quenching/tempering), non-destructive testing (magnetic particle/X-ray), and surface treatment (zinc plating/nickel plating/Dacromet), ensuring one-stop delivery.
Large-Scale Production: Annual capacity of 20,000 tons, with casting weight ranging from 0.2kg to 200kg, supporting flexible small-to-medium batch customization with lead times of 20-45 days.

Quality Assurance: International Certifications & Innovation

Junlong Precision Casting holds ISO9001, TS16949, and UL certifications, along with 8 patented technologies. Equipped with OBLF spectrometers, metallographic microscopes, and other testing instruments, the company ensures full traceability from raw materials to finished products. A team of over 20 experienced engineers drives continuous process innovation and quality improvement.

Global Service, Customized Solutions

With a complete set of machining equipment (CNC lathes, machining centers, gantry milling machines, etc.) and export-standard packaging capabilities, Junlong’s products are shipped worldwide, widely used in heavy industries such as mining equipment, drilling machinery, and truck components.Factory Address: Fangzi District, Weifang City, Shandong Province, China