How Does a Rotary Actuator Work?
Functional Description / Direction of Rotation
When pressure is applied to port P1, the drive shaft rotates from the basic position to the left (counterclockwise). When pressure is applied to port P2 in the end position, the drive shaft rotates back to the starting position (clockwise). A change of rotation direction is available as a special option.
Further information:
I-DA-H Rotary Actuator
Technical data
| Operating pressure | Up to 250 bar |
| Torque | Up to 250.000 Nm |
| Rotation angle | Up to 1.080° |
| Special rotation angle | Up to 1.500° |
| All sliding surfaces are surface hardened | |
| Rotary pistons can be driven to and loaded on their end stops | |
| Rotation angle or end position detection possible via standard control shaft | |
| Improved bearing with four-point bearings | |
| All intermediate rotation angles are possible | |
| Optimized end position damping standard | |
| Angle adjustment standard | |
| Latest sealing technology | |
| Stepless adjustment of the shaft position |
Technical data
| Operating pressure | Up to 250 bar |
| Torque | Up to 250.000 Nm |
| Rotation angle | Up to 90° ±1 (special angles possible) |
| Protection rating | IP65, IP67 |
| Precise positioning capability | |
| Ambient temperature | -10 bis 75°C |
| ISO 5211 flange | |
| Standard/special flanges possible | |
| Secure, stable, and compact housing design in spheroidal cast iron | |
| Materials | Steel, GGG, stainless steel on request |
| Fail-safe actuation time open/close | <1 sec. (depending on drive size) |
| Certified according to ATEX, SIL2 | |
| Duty cycle | S1 - 100% |
| Seals | PU / NBR / Viton |
| Hydraulic fluid | HLP DIN 51524, HFC and HFD available on request |
| Manual override | |
| Low maintenance | |
| Single, series, and prototype production | |
| Custom, customer-specific requirements feasible |