Pioneering Hydraulic Excellence & Innovation Since 1978
Ningbo Chaori
Hydraulic Co., Ltd.
As a leading modern enterprise in the hydraulic accumulator niche, we integrate advanced R&D with precision manufacturing across our 18,000m² facility. With over 45 years of industry expertise and a commitment to international standards (ASME, CE, ISO9001), we deliver high-performance solutions that create irreplaceable value for global partners in metallurgy, aerospace, and construction engineering.
Decades of Heritage, Built on Quality & Innovation
Founded in 1978 and located in the scenic Xikou National AAAAA Resort, Ningbo Chaori Hydraulic has evolved into a cornerstone of the industry. As a national high-tech enterprise and a key member of the China Hydraulics Pneumatics & Seals Association, we didn’t just witness the industry’s growth—we helped shape it by participating in the establishment of China’s national standards for hydraulic accumulators.
Today, our brand represents the perfect synergy of experience and modern technology. We specialize in the deep research and manufacturing of bladder, piston, and diaphragm type accumulators. By integrating 100% full-process quality control with customer-centric engineering, we ensure that every solution leaving our 18,000m² facility meets the complex demands of the global industrial landscape.
Why choose Chaori?
47 Years of Engineering Excellence Driven by Innovative R&D and a 100% Quality-First Manufacturing Philosophy.
The Synergy of Innovation and Precision Control
Superior performance at Ningbo Chaori is driven by the synergy of technical expertise and rigorous control. Our R&D center (est. 2005), led by 15 senior engineers, transforms complex challenges into high-value solutions. Supporting this, 10 specialized QC experts utilize advanced instruments for 100% full-process inspection—ensuring every product from our 18,000m² facility exceeds international standards.
Core Products: Hydraulic Accumulators
- Bladder Accumulator
- Piston Accumulator
- Diaphragm Accumulator
- Accumulator Station
Accumulator System Accessories
- Nitrogen Charging Tool
- Accumulator Nitrogen Charging One-Way Valve
- Fixed Bracket For NX Type Accumulator
- Accumulator Safety Valves Blocks
- NX Accumulator Fixing Clamp
- Bladder
Trusted Across Industries
Globally Certified Quality
Our commitment to quality is validated by world-class regulatory bodies. Ningbo Chaori Hydraulic proudly maintains a comprehensive suite of international certifications, including the ASME (USA) Pressure Vessel Manufacture Certificate, the CE (EU) Safety Certification, and the ISO 9001 Quality Management System. These credentials, combined with our National Special Equipment License, ensure that our products meet the most stringent safety and performance requirements of the global market.

