Ningbo Tonsin Machinery Industry Inc.

Ningbo Tonsin Machinery Industry Inc. is a professional investment casting manufacturer specializing in high-quality castings and machined parts for diverse industrial applications. Formed in 2006 through the merger of Tonsin Machinery and Xiangshan Hengli Foundry & Machine Company, the firm excels in producing components from stainless steel, carbon steel, iron, and aluminum using advanced lost wax casting processes, followed by precision CNC machining for complex geometries and tight tolerances. These offerings support automated manufacturing workflows in sectors like automotive, valves, pumps, machinery, and marine equipment, enabling efficient assembly and performance in demanding environments. Tonsin emphasizes innovation, quality control, and customer collaboration, providing full-service solutions from design and prototyping to finished products with surface treatments like polishing and plating. Certified under ISO9001:2008, the company holds capabilities for both small-batch custom orders and large-scale production, exporting to over 30 countries including the US, Europe, and Asia. Key achievements include over 20 years of foundry expertise, participation in global exhibitions like Hannover Messe, and a reputation for reliability, with thousands of satisfied clients benefiting from automated casting lines that ensure consistency, reduced lead times, and cost-effective precision engineering for global supply chains.