Since 1987, OUBAO has grown into a professional door closer & magnetic lock manufacturer in China, serving global commercial and residential door control projects.
We operate with a 106,000㎡ manufacturing base, producing hydraulic door closers, magnetic locks and door control systems for you across global markets. Our products are developed and tested under strict compliance with UL, UL10.C, ETC, ITS, TUV, CE and CCC, ensuring reliable performance for fire-rated doors, commercial doors, and security door systems.
Precision is guaranteed by our in-house manufacturing. By controlling the entire process—from CNC machining to specialized oil filling and custom mold-making—we provide you with leak-proof hydraulic stability and superior electromagnetic holding power.
With OUBAO, you gain the advantage of predictable 35-day lead times and door control hardware that secures your reputation without compromise.
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