In 2006, we launched core brand SANHA , specializing in hydraulic excavator attachments led by hydraulic breakers.
In 2009, we opened our Shanghai sales & service headquarters to serve major global excavator manufacturers. We built a nationwide distribution network and exported products to 15 countries across four continents, forming a complete R&D, production and after-sales system.
In October 2019, we founded Yantai Doocang Heavy Industry Technology Co., Ltd., our group’s core manufacturing base. Equipped with full sets of Korean precision machining and testing equipment, we independently produce hydraulic breakers, quick hitches, grapples, hydraulic shears and other excavator attachments.
In 2020–2023, we invested heavily in hydraulic system development and obtained multiple patents for structural and control technologies.
In 2024, we obtained National High-Tech Enterprise certification. In 2025, we were recognized as a national tech-based SME.
We now hold over 30 patents and implement strict quality control standards, providing one-stop excavator attachment solutions for mining, infrastructure and demolition projects worldwide.link:https://www.doocangsh.com
