A Hydraulic Rotary Actuator is a compact device that converts linear piston movement into rotational motion through a sophisticated mechanical interface. At WEITAI, our helical actuators utilize a unique sliding-spline technology. When hydraulic pressure is applied to the piston, it moves axially. Because the piston and the housing are connected via helical gears (splines), this linear movement forces the piston to rotate as it slides.
This "helical" approach provides several distinct advantages over traditional rack-and-pinion systems:
By using multiple helical gears, the surface area for load distribution is significantly increased. This allows our WL and L series to produce up to 24,000 Nm of torque in a remarkably small footprint.
The enclosed design ensures that the internal hydraulic fluid remains sealed, maintaining static position holding without the need for external brakes—critical for construction and mining machinery.
The helical spline acts as a "hydraulic fuse," absorbing mechanical shocks and preventing catastrophic failure in extreme overload conditions, a feature vital for heavy-duty earthmovers.
WEITAI Hydraulic is an ISO-certified leader in the Chinese mobile hydraulic sector. Unlike many traders, we control the entire lifecycle—from raw material sourcing (certified by CE, RoHS, CSA, and UL) to precision machining and final assembly. Our factory in China leverages a world-class supply chain to deliver high-performance actuators at a competitive price point.
Starting as an OEM supplier for North American heavy industries, we have evolved into a global titan serving over 50 countries. Our team of engineers can customize helical rotary actuators based on complex CAD drawings, ensuring a perfect fit for specific mounting requirements like flange or foot mounts.
International buyers choose WEITAI because we bridge the gap between "China Speed" and "Western Quality." We offer detailed Certificates of Analysis (CoA), origin documentation, and 100% factory testing, ensuring every unit arrives ready for immediate integration into your production line.
The industry is moving toward "Smart Hydraulics." Rotary actuators are no longer just passive components; they are being integrated with sensors for precision angle feedback. WEITAI is at the forefront of this shift, providing actuators for:
WEITAI Hydraulic is one of the leading mobile hydraulic suppliers in China with decades of experience. Starting from the production of OEM Hydraulic cylinders for North American Customers, we have grown to be an integrated company of manufacturing, trading, and investing. The hydraulic rotary actuator is one of our main products. Our factory is ISO certified and our material suppliers have all obtained CE, RoHS, CSA and UL certificates.
WEITAI factories are all ISO certified. We use high-precision CNC machining centers and advanced testing rigs to ensure that every helical hydraulic rotary actuator meets the highest international standards before shipment.
Our prices are subject to change depending on supply and other market factors. We will send you an updated price list after your company contact us for further information.
Yes, we require all international orders to have an ongoing minimum order quantity. For specific OEM projects, we can discuss trial orders to ensure product compatibility.
For samples, the lead time is about 7 days. For mass production, the lead time is 20-30 days after receiving the deposit payment and final technical approval.
Yes, we can provide most documentation including Certificates of Analysis / Conformance, Insurance, Origin, and other export documents where required for customs clearance.
We provide a 1-year warranty on all materials and workmanship. Our commitment is to resolve all technical issues to your satisfaction through our 24/7 online support team.
Unlike a standard hydraulic cylinder which provides linear force, the helical actuator uses internal splines to convert that force into high-torque rotation, saving space and eliminating external linkages.
Whether you are designing a new excavator tilt coupler or a specialized mining vehicle, WEITAI has the engineering expertise to power your rotation.
Professional Manufacturer Summary: WEITAI is devoted to providing the best solution of hydraulic rotary actuators for construction machineries and special vehicles. With over 120 models and a global footprint in 50+ countries, our products like the WL and L series represent the pinnacle of Chinese hydraulic engineering. All units are 100% factory tested and backed by ISO-certified quality assurance protocols.
Weitai Hydraulic
