In the world of heavy-duty machinery, the helical hydraulic rotary actuator stands as a masterpiece of mechanical engineering. Unlike traditional rack-and-pinion systems, the helical design utilizes a unique sliding spline technology to convert linear piston motion into powerful rotational torque.
How it Works: When hydraulic pressure is applied, the internal piston moves axially. Because the piston and the housing are connected via multi-start helical gears, this linear movement forces the piston to rotate. This secondary rotation is then transmitted to the output shaft, providing high torque in a remarkably compact envelope. This design offers several critical advantages:
Torque Range: Up to 75,000 Nm
Rotation: 90°, 180°, 360° Standard
Mounting: Flange, Foot, or Custom
Materials: High-tensile alloy steel with precision heat treatment.
WEITAI Hydraulic is a premier mobile hydraulic supplier in China. We have evolved from a specialized OEM factory for North American hydraulic cylinder markets into a global powerhouse in manufacturing, trading, and investment.
Our ISO-certified factory operates under strict quality control. Material suppliers hold CE, RoHS, CSA, and UL certificates, ensuring every actuator meets international safety and environmental standards.
With 20+ years of expertise, we don't just sell products; we engineer solutions. From custom drawings to 100% factory testing, our commitment to reliability is unmatched in the industry.
Our actuators are not just components; they are the "muscles" behind some of the world's most critical infrastructure projects. We analyze localized needs to provide tailored performance.
In harsh underground environments, actuators must withstand corrosive dust and high vibrations. Our enclosed helical design protects moving parts, making it ideal for drill boom positioning and roof bolters.
Solar trackers and wind turbine blade pitch systems require precision and high holding torque. Our WL series ensures consistent positioning against high wind loads without needing external brakes.
Excavator tilting hitches and truck-mounted cranes rely on WEITAI for compact rotation. In dense urban construction, the "zero-leak" feature ensures safety when lifting heavy loads over critical structures.
As a leading Chinese exporter, WEITAI leverages the world's most robust industrial ecosystem. This allows us to offer advantages that Western manufacturers often struggle to match:
The industry is shifting towards "Industry 4.0". WEITAI is at the forefront of this transition, focusing on three key pillars for the next decade:
Developing actuators with integrated position-sensing technology (LVDTs or Hall-effect sensors) to provide real-time feedback to the machine's ECU.
Exploring high-strength composites and advanced alloys to reduce the weight of our WL series by up to 15% without sacrificing torque output.
Optimizing internal flow paths to minimize pressure drops, allowing mobile equipment to operate with smaller pumps and lower fuel consumption.
Our team concentrates on mobile hydraulic components. Together with our professional technicians and staff, we are dedicated and passionate about our mission. We provide technical and commercial support across all time zones.
Our workshop is where science meets steel. From the initial forging to the final 100% load test, each rotary actuator undergoes a rigorous journey. We specialize in helical gears that allow for holding any intermediate angle of rotation with precision.
WEITAI is devoted to providing the best solution of hydraulic rotary actuators for construction machineries and special vehicles. Whether you need a standard WL series or a fully customized high-torque solution, our engineering team is ready to assist.
Please let us know your demand and we will be in touch within 24 hours.
Weitai Hydraulic
