As a leading engineering hub in East Asia, Busan demands heavy components capable of withstanding saltwater environments, massive load dynamics, and space-restricted layouts. The WL20 Series Helical Hydraulic Rotary Actuators are specifically engineered to offer maximum holding torque and sliding spline reliability for Korean marine vessel manufacturing, port cranes, and automated heavy machinery networks.
The metropolitan area of Busan, housing the world's 6th busiest port by container cargo throughput, is the undisputed heart of the Korean marine industry. Surrounding industrial districts such as Noksan, Mieum, and the adjacent shipyards of Ulsan and Geoje Island (home to Hanwha Ocean, Samsung Heavy Industries, and HD Hyundai Heavy Industries) require continuous supply of robust structural components. In these demanding environments, traditional linear cylinders struggle with footprint limitations, while open gearing is highly prone to accelerated wear from salt mist corrosion.
The WL20 Series Helical Hydraulic Rotary Actuator solves these spatial and reliability challenges. By converting linear piston movements into a rotating shaft action using multi-start helical spline gearing, it provides extremely high torque outputs in a fully enclosed, self-lubricating structural housing. Our Chinese fabrication facilities specialize in exporting customized mount configurations specifically compatible with Korean industrial machinery standards (KS standards).
Partnering with an experienced Chinese exporter like WEITAI Hydraulic unlocks significant operational advantages for Busan procurement agencies:
We maintain a comprehensive catalog of helical actuators to cover all hydraulic torque requirements, ranging from light industrial robotics to heavy shipyard crane systems. All designs can be customized with foot or flange mounts according to your drawings.
| Model Series | Torque Range (Nm) | Rotation Angles | Key Applications in Busan Market |
|---|---|---|---|
| WL10 Series | 200 - 1,600 Nm | 180° / 360° | Light aerial work platforms, municipal vehicles, solar trackers |
| WL20 Series | 900 - 4,500 Nm | 180° / 360° | Construction machinery attachments, drilling rigs, harbor steering systems |
| WL30 Series | 1,900 - 24,000 Nm | 180° / 360° | Heavy marine deck cranes, pipe handling, large construction attachments |
| WL40 Series | 5,000 - 25,000 Nm | 200° / 220° | Shipbuilding cranes, metallurgical equipment, offshore mining systems |
WEITAI Hydraulic is one of the leading mobile hydraulic suppliers in China with decades of experience. We are committed to providing excellent hydraulic products and services to both businesses and final users worldwide.
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. We can design and customize according to drawings to meet the diverse needs of customers.
Professional technical and commercial teams are available 24/7 for online support. Our team concentrates on mobile hydraulic components. Together with our professional technicians and staff, we are dedicated and passionate about our mission.
High torque capacity coupled with exceptional axial and radial bearing capacity in a minimal envelope size.
Enclosed moving parts protect internal components from harsh marine, salt-mist, and heavy industrial environments.
High power density design permits integration into extremely confined spaces where standard cylinders cannot fit.
Zero internal leakage design allows for holding precise intermediate angles without the requirement of external braking systems.
Eliminates the need for external bearings, linkages, and structural brackets, dramatically reducing your total bill of materials (BOM).
Functions as a hydraulic fuse in overload conditions, protecting your complex mechanical link structures from physical damage.
When selecting rotary actuators for the Korean heavy industry market, procurement officers must pay careful attention to structural integrity. Busan shipbuilders require components with high corrosion resistance (C5-M painting standards), absolute functional reliability under massive thermal fluctuations, and exact mounting matches for standard excavators, marine vessels, and drilling systems.
The WL20 Series offers multiple installation choices, including foot mounting and face/flange configurations, making it simple to retrofit existing ship cranes, crane arms, and heavy material conveyors. Our technical teams are skilled at matching Korean and global OEM requirements, offering custom splines, specialized port thread sizes (G, NPT, or SAE), and integrated valve blocks.
Our prices are subject to change depending on supply and other market factors. We will send you an updated price list after your company contacts us for further information.
Yes, we require all international orders to have an ongoing minimum order quantity. If you are looking to purchase in much smaller quantities, please contact our sales team to verify local distributor availability.
Yes, we can provide most documentation including Certificates of Analysis / Conformance; Insurance; Origin, and other export documents where required for customs clearance in Korea.
For samples, the lead time is about 7 days. For mass production, the lead time is 20-30 days after receiving the deposit payment. Fast-track sea-freight lanes from Qingdao or Shanghai to Busan Port typically require only 2 to 3 days in transit.
You can make the payment to our bank account, Western Union or PayPal: 30% deposit in advance, 70% balance against the copy of B/L.
We warranty our materials and workmanship. Our commitment is to your satisfaction with our products. In warranty or not, it is the culture of our company to address and resolve all customer issues to everyone's satisfaction.
Yes, we always use high-quality export-grade packaging. We also use specialized reinforcement packing for heavy-duty components and heat-treated wooden crates to ensure zero rust or damage during maritime transit.
Yes. For Busan shipyards and offshore platforms, we provide epoxy-based paint systems rated for ISO 12944 C5-M marine protection to resist corrosive saltwater environments.
Browse our core helical hydraulic rotary actuator range. The following models are ready for delivery, featuring custom mounting flanges, SAE porting, and heavy load carrying capabilities.
Weitai Hydraulic
