The A4V series, particularly the A4VG and A4VSO models, represents a masterclass in swashplate design. These axial piston variable pumps are engineered for closed-circuit and open-circuit high-pressure transmissions. As a leading A4V Series factory, we integrate precision machining with advanced metallurgy to handle pressures up to 450 bar, ensuring durability in the harshest industrial environments.
Weitai Hydraulic has transitioned from a specialized OEM factory into a global powerhouse. In 2019 alone, our production exceeded 40,000 travel motors, serving titans like SANY, XCMG, and SDLG. This volume is a testament to our capacity to scale without compromising the technical integrity required by international standards.
Reliability is non-negotiable in hydraulic systems. Our factories are ISO certified, and our supply chain is strictly vetted with CE, RoHS, CSA, and UL certifications. We don't just manufacture; we validate every unit through rigorous performance testing to exceed OEM specifications.
The A4V series isn't just a part; it's the heart of modern infrastructure. We provide integrated solutions across diverse sectors:
Our A4VG pumps provide the necessary torque and speed control for heavy-duty excavators and skid steer loaders. By optimizing hydraulic efficiency, we help operators reduce fuel consumption by up to 15%.
In stationary applications like hydraulic presses and plastic injection molding, the A4VSO series offers quiet operation and long-term stability under continuous duty cycles.
Supporting the global shift toward sustainable mining, our hydraulic motors and pumps are increasingly used in electric-hybrid machinery, providing the high power density that batteries alone cannot achieve.
As the Shandong Hydraulic Association’s (SDHA) Secretary Company, Weitai serves as a comprehensive export platform for China's high-end hydraulic manufacturing. Our global business strategy focuses on two pillars:
We are currently developing smart A4V pumps equipped with integrated sensors to monitor pressure, temperature, and vibration in real-time, enabling predictive maintenance.
Research into ceramic coatings and new alloy compositions is underway to further increase the service life of our pistons and swashplates under high-frequency load changes.
Optimizing flow channels within the pump housing to minimize turbulence and cavitation, resulting in the highest volumetric efficiency in the industry.
Weitai Hydraulic is one of China’s leading hydraulic suppliers, the earliest hydraulic enterprises which specializing in export business for decades. We are committed to providing excellent hydraulic products and services to both businesses and final users worldwide.
At the first beginning, we are OEM factory, and have gradually developed into a comprehensive company integrating production, trade and investment. Hydraulic motors are one of our main products. In addition to our own hydraulic factories, we are a shareholder of a high-quality hydraulic motor manufacturer. Our factories are all ISO certified and our material suppliers have all obtained CE, RoHS, CSA and UL certificates.
Motors Produced Yearly
Certified Quality
Secretary Company
Elite Partnership
No. 36 Miao Ling Road, Laoshan District, Qingdao, China 266061
Monday-Friday: 9:00 am to 6:00 pm
Saturday, Sunday: Closed
For inquiries about our A4V Series products or complete hydraulic pricelists, please reach out to our technical team. We guarantee a response within 24 hours.
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Weitai Hydraulic
