Explore our high-performance models designed with sliding helical spline technology for ultimate durability and power density.
In modern industrial and heavy equipment engineering, the search for compact, space-efficient, and high-performance torque options has shifted towards helical rotary actuators. Traditionally, rack-and-pinion and vane actuators dominated standard machinery. However, as heavy machinery, aerial utility buckets, mining drills, and harbor marine infrastructure demand higher loads in tighter physical configurations, the helical gear architecture has proven itself irreplaceable.
With zero internal leakage, massive axial and radial load capacity, and the unique ability to function as a structural support alongside its primary role as a rotation driver, the helical rotary actuator is the foundation of high-density machine components. Globally, industrial sectors are updating legacy machinery with enclosed, dust-proof helical systems that significantly reduce maintenance intervals, guarantee operational safety, and decrease total life-cycle costs.
How sliding helical splines translate linear piston force into powerful shaft rotation while sustaining maximum stability under severe load dynamics.
When hydraulic pressure is applied to the piston, it moves linearly. Multiple helical gears machined into both the housing teeth, the piston ring, and the main output shaft translate this simple stroke into smooth, high-torque rotational output.
Unlike conventional gear systems that slip over time, our helical systems feature zero internal leakage. They provide robust static holding torque, eliminating the need for external mechanical brake assemblies and simplifying overall designs.
By combining linear thrust and rotational force within a unified cylindrical casing, our helical actuators fit easily into narrow spaces, significantly lowering the overall bill of materials (BOM).
Decades of manufacturing experience backed by ISO certification, advanced engineering staff, and state-of-the-art testing equipment.
Our dedicated technical, commercial, and engineering teams concentrate on mobile hydraulic components. Operating with certified facilities (ISO, CE, RoHS, CSA, and UL), we design, optimize, and customize rotational actuators directly from client blueprints.
With professional knowledge gained from decades of manufacturing OEM solutions, our team remains on call to support distributors, equipment developers, and tier-1 fleet suppliers globally.
All WL series helical rotary actuators undergo 100% factory verification tests before packing and export. From material incoming checks to pressure integrity, dynamic torque validation, and micro-leakage analysis, we implement multi-step quality control.
Whether it's the compact WL10 series for precision utility machinery or the massive WL30/WL40 series capable of outputs up to 24,000 Nm, every actuator is built to withstand extreme working pressures and high duty cycles.
From remote, freezing mining sites to demanding maritime platforms, our products deliver consistent, reliable torque worldwide.
Widely integrated in North American and European municipal fleet operations. Helical rotary cylinders provide smooth, stable platform rotation and position holding, ensuring maximum worker safety at high elevations.
Specifically engineered to withstand intense vibration and dirt ingress. Ductile iron housings and heat-treated internal splines keep critical drill placement operations running smoothly in underground applications.
Featuring sea-water resistant specialty paint coatings and corrosion-proof internal sealing systems. Ideal for deck steering, offshore cranes, and heavy-duty cargo handling gear exposed to harsh environments.
Operating as an integrated designer, manufacturer, and investor allows WEITAI Hydraulic to maintain deep control over every phase of our supply chain. Unlike standard trading operations, our manufacturing facility relies on localized hubs for premium materials. This guarantees access to certified steels, modern thermal hardening facilities, and high-performance seals without external delay.
In times of global transport uncertainty, our strategic positioning near China's main shipping ports, combined with our strong raw material inventory, ensures reliable, on-time delivery for batch wholesale orders.
The industry is shifting toward smart, connected, and eco-friendly machinery. WEITAI Hydraulic's development path focused on:
Why our helical system outperforms traditional linear cylinder and gear designs.
Delivers high torque output relative to its size, carrying massive radial, axial, and moment loads without slipping.
Fully enclosed moving parts resist moisture, debris, and abrasive dust in tough industrial fields.
High power density fits easily into tight structural configurations, allowing for clean mechanical integration.
Zero internal leakage and natural helical resistance enable smooth movement and position locking without external brakes.
Eliminates the need for external bearings, linkages, or brackets, reducing your overall mechanical bill of materials.
Functions as a hydraulic fuse in overload conditions, allowing backdriving to prevent permanent structural damage.
Detailed information about pricing, customizing, shipping, lead times, and compliance.
A closer look at the advanced testing and manufacturing processes inside our ISO-certified production facilities.
High-torque solutions customized for direct mechanical replacement and demanding applications.
The latest additions to our helical line-up, featuring custom rotations and quick couplers.
Whether you require standard WL series configurations or customized designs built directly from your engineering team's drawings, WEITAI Hydraulic provides quality-assured, high-torque options.
Weitai Hydraulic