Hydraulic Rotary Actuators RA20 Series
The ASHUN RA20 Series Hydraulic Rotary Actuators come standard with a highly rigid LA foot mount, offering high installation flexibility. Their optimized design comprehensively supports both flange (cantilever) and bracket (straddle) integration on the customer's end, providing stable drive power for medium-heavy automation systems.
Precision Double-Helix Drive Technology
Deliver Up to 4400 Nm (39,000 in-lb) of Drive Torque
Standard LA Foot Mount Enhances Installation Flexibility
Support Cantilever and Straddle IntegrationPrecision Double-Helix Drive Technology
Specification
| Item | Specification Value |
|---|---|
| Model | 4.5, 8.2, 15, 25, 39 (4.5 = Drive Torque = 4500 in-lb) |
| Max. Operating Pressure | 210 bar (3000 psi) |
| Max. Drive Torque | 4400 Nm (39,000 in-lb) |
| Rotation Angle | 180 ° |
| Standard Mounting | Foot Mount |
Description
Product Description
The ASHUN RA20 Series Hydraulic Rotary Actuators are developed for industrial applications demanding high versatility and flexible mechanical engineering. Coming standard with a robust LA foot mount, these actuators allow customers to integrate them based on actual load requirements—whether adapting them into a single-supported flange (cantilever) setup or a bracket (straddle) configuration with high bending resistance. This provides mechanical engineers with broad design freedom.
Relying on optimized radial and axial load endurance, the RA20 series actuators maintain precise zero-leakage positioning in heavy-duty environments. Their high adaptability makes them widely used in construction vehicles, material handling equipment, and advanced automated production lines, serving as flexible and reliable power cores within the system.
Product Features
- High-Pressure Actuation: Designed for medium-heavy loads, stably delivering robust torque output under 210 bar (3000 psi) operating pressure.
- Flexible Mounting Configuration: Features a standard LA foot mount, smoothly interfacing with customer-side cantilever or straddle structure development.
- Comprehensive Load Endurance: The precision double-helix structure provides solid radial and axial load-bearing capacity, reducing the risk of mechanical deformation.
- Custom Project Support: Capable of developing exclusive clevis mounts for tilting quick couplers and platform rotators, backed by international mass production experience.
Solutions
Construction Machinery
Construction equipment operates in punishing environments characterized by extreme climates, heavy dust, and intense vibration. Equipment stability is the ultimate key to maintaining project schedules. ASHUN provides highly durable custom hydraulic cylinders and high-torque rotary actuators specifically engineered for excavators, loaders, and heavy-duty construction vehicles. Our solutions feature superior anti-side-load capabilities and extreme precision, ensuring flawless performance under heavy loads, high pressure, and continuous operation—conquering the toughest job site challenges.
Lifting Equipment
Material handling equipment carries extreme risks to human safety and valuable assets; every lift and rotation must be flawless. For aerial work platforms (AWPs), cranes, tail lifts, and jacking systems, ASHUN delivers custom hydraulic cylinders integrated with fail-safe mechanisms and rotary actuators for high-precision positioning. We guarantee smooth, zero-leakage performance under heavy aerial loads and high-frequency lifting conditions.
Military and Aerospace
In defense and aerospace applications, mission success is paramount, and hydraulic system failures are strictly zero-tolerance. Certified by the AS9100 Aerospace Quality Management System, ASHUN provides custom hydraulic cylinders and high-torque rotary actuators engineered with exceptional safety factors for armored vehicles, radar antennas, and ground support equipment (GSE).
Agricultural Machinery
From soil preparation to harvesting, agricultural machinery is constantly exposed to mud, dust, and erratic weather. ASHUN provides weather-resistant, leak-proof custom cylinders and precision rotary actuators for tractors, combine harvesters, and diverse attachments. Our high-load capacity ensures uninterrupted, high-efficiency operation during critical farming seasons.
Smart Automation/Industry 4.0 or Robotics Industry
In the era of smart manufacturing, heavy robotics and automated equipment require actuation that combines high power density with precise data feedback. ASHUN empowers heavy-duty robotic arms, AGVs, and automated production lines with smart-sensor-integrated cylinders and high-precision rotary actuators, seamlessly bridging the gap between traditional hydraulics and Industry 4.0 servo-hydraulics.
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