Weitai Hydraulic
1 / 5
Heavy-duty helical rotary devices designed for high-performance applications in harsh environments.
| Rotation | 180°, 360° |
| Output Mode | Front Flange, Double Flanges |
| Mounting | Front Flange, Rear flanges |
| Drive Torque Nm@21Mpa | 7300 |
| Holding Torque Nm@21Mpa | 18000 |
| Max Cantilever Moment Capacity Nm | 18400 |
| Max Straddle Moment Capacity 180° Nm | 47800 |
| Max Straddle Moment Capacity 360° Nm | 71200 |
| Radial Capacity Kg | 5000 |
| Axial Capacity Kg | 3600 |
| Displacement 180° cc | 1870 |
| Displacement 360° cc | 3740 |
| Weight 180° Kg | 110 |
| Weight 360° Kg | 140 |
| D1 Mounting Flange Dia mm | 315 |
| D2 Pilot Dia mm | 230 |
| D3 Shaft And Endcap Flange Dia mm | 209 |
| D4 Housing Dia mm | 203 |
| F1 Mounting Hole Of Shaft Flange mm | M22×2.5 |
| F2 Qty of Shaft Flange Mounting Holes | 12 |
| F3 Bolt Circle Dia of Shaft Flange mm | 170 |
| F4 Mounting Hole Of Endcap Flange mm | M20×2.5 |
| F5 Qty of Endcap Flange Mounting Hole | 12 |
| F6 Bolt Circle Diameter of Endcap Flange | 275 |
| H1 Centerline To Valve Top mm | 131 |
| L1 Overall Length 180° mm | 413 |
| L1 Overall Length 360° mm | 615 |
| L2 Length Without Rotating Flange 180° mm | 363 |
| L2 Length Without Rotating Flange 360° mm | 565 |
| L3 Shaft Flange To Counterbalance Valve 180° mm | 130 |
| L3 Shaft Flange To Counterbalance Valve 360° mm | 232 |
| L4 Mounting Flange Thickness mm | 33 |
| L5 Shaft Flange To Mounting Flange Face mm | 42 |
| 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 protects the actuator against excessive torque loading. The hydraulic schematic shows the optional counterbalance valve configuration. This valve is optional on-demand, with SUN brands or other top brands available for different requests.
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%.
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).
