Weitai Hydraulic
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This series hydraulic rotary actuator is designed for harsh environment. It is heavy duty helical rotary device with torque output from 1900Nm to 24000Nm at 21Mpa. The series with foot mounting helical actuator features 180 degree rotation and 360 degree rotation. It is wide used for fields of agriculture, Construction, Energy, Marine, Material Handling, Military, Mining, Truck/Trailer, etc.
| Rotation | 180°, 360° |
| Output Mode | Front Flange, double flanges |
| Mounting | Foot |
| Drive Torque Nm@21Mpa | 1900 |
| Holding Torque Nm@21Mpa | 4900 |
| Max Cantilever Moment Capacity Nm | 5200 |
| Max Straddle Moment Capacity 180° Nm | 13400 |
| Max Straddle Moment Capacity 360° Nm | 19200 |
| Radial Capacity Kg | 1800 |
| Axial Capacity Kg | 1400 |
| Displacement 180° cc | 492 |
| Displacement 360° cc | 980 |
| Weight 180° Kg | 34.5 |
| D1 Mounting Flange Dia mm | 139 |
| D2 Housing Dia mm | 140 |
| F1 Mounting Hole Of Shaft Flange mm | M12×1.75 |
| F2 Qty of Shaft Flange Mounting Holes | 12 |
| F3 Bolt Circle Dia of Shaft Flange mm | 115 |
| F4 Mounting Hole Of Endcap Flange mm | M10×1.5 |
| F5 Qty of Endcap Flange Mounting Hole | 12 |
| F6 Bolt Circle Diameter of Endcap Flange | 108 |
| F7 Mounting Holes Of Housing Foot | M16 |
| H1 Height Without Counterbalance Valve mm | 156 |
| H2 Height To Centerline mm | 80 |
| H3 Foot Height mm | 48 |
| H4 Overall Height mm | 179 |
| L1 Overall Length 180° mm | 298 |
| L1 Overall Length 360° mm | 427 |
| L2 Length Without Rotating Flange 180°mm | 261 |
| L2 Length Without Rotating Flange 360° mm | 392 |
| L3 Shaft Flange To Counterbalance Valve 180° mm | 75.2 |
| L3 Shaft Flange To Counterbalance Valve 360° mm | 149 |
| L4 Mounting Length 180° mm | 229 |
| L4 Mounting Length 360° mm | 358 |
| L5 Shaft Flange To Mounting Hole 180°mm | 38.1 |
| W1 Mounting Width mm | 190 |
| W2 Overall Width mm | 222 |
| P1, P2 Port | ISO-1179-1/BSPP ‘G’ series, size 1/8 ~1/4. |
| V1, V2 Port | ISO-11926/SAE series, size 7/16. |
| *Specification charts are for general reference only, please consult drawing for actual values and tolerances. | |
The counterbalance valve protects rotation in the event of a hydraulic line failure and protect the actuator against excessive torque loading. Hydraulic Schematic of Optional Counterbalance Valve. The counterbalance valve is optional on-demand. SUN brands or other top brands are available for different requests.
Standard Valve for L30-17 and L30-25 180 Degree Models
Manufactured from aluminum, the valve blocks are bolted to a flat mounting pad on the actuator housing. Three bolts secure the valve block to the actuator. The pilot ratio is 3:1. The valves are set to relieve at 3300 psi ± 300 psi (228 bar ± 21 bar).
Torque Versus Hydraulic Pressure and Loads
The driving torque and holding torque are approximately linear with hydraulic pressure. As moment loads increase, drive torque may be reduced by up to 15%.
Cantilever Mount: The load is mounted to the shaft flange and is supported at only one end of the shaft. Cantilever mounting is not recommended for aerial work platforms or other critical and safety-related applications.
Straddle Mount: The load is supported at both ends of the shaft.
