Sanjack is a trusted investment casting manufacturer and precision parts supplier, producing lost-wax castings for global machinery, architecture, pump, valve, impeller, marine, automotive, hardware, and custom component markets. With a foundry, CNC machining department, hand-polishing workshop, controlled shell building, heat treatment, and strict quality systems, Sanjack delivers durable stainless steel, carbon steel, and alloy steel parts with accurate dimensions, clean surfaces, and consistent performance. Our capability covers tooling, casting, machining, polishing, inspection, and finishing services for lasting performance.

Each casting is produced from verified metal, controlled through wax injection and shell making, and inspected with spectrometers and three-dimensional measurement systems for accuracy and durability. From precision components to customized hardware, Sanjack provides manufacturing solutions with machining and finishing support for international customers. As a reliable China foundry, we emphasize stable quality, competitive pricing, and consistent delivery.

Beyond production, Sanjack provides technical support covering drawing review, material selection, tooling development, process optimization, heat treatment, machining, polishing, and inspection planning. Our engineering team works closely with customers across Europe, America, Australia, Japan, Southeast Asia, the Middle East, Africa, and South America. Whether for volume investment casting or specialized custom components, Sanjack helps customers improve manufacturability, maintain product consistency, control costs, and develop dependable industrial supply programs efficiently worldwide.