Rotary Actuators

Festo Rotary Actuators

Festo Rotary Actuators convert pneumatic energy into precise angular motion. They are engineered for automation tasks that require rotational positioning, flipping, turning or indexing of parts. The product family includes vane-type, rack-and-pinion, and semi-rotary actuators offering rotation angles from 90° up to 360° or adjustable ranges depending on the model.

These actuators deliver reliable motion control, compact installation, and durable performance in manufacturing, robotics, packaging and handling systems.

⭐ Important: Festo rotary actuators provide accurate angular positioning, high torque, and compact mechanical design, making them essential for motion-critical automation tasks.

Design & Functionality

• The actuator converts linear pneumatic force into rotational output using either:
  • Vane technology (compact, simple construction), or
  • Rack-and-pinion systems (high torque, consistent rotation).
• Models offer fixed or adjustable rotation angles from 90°, 180°, 270° or 360°, depending on the version.
• Many units include integrated adjustable cushioning, ensuring smooth deceleration and long service life.
• Position sensing slots allow for direct installation of sensors for end-position monitoring or mid-stroke positioning.
• Optional shock absorbers, external bearings, and mounting plates further extend performance in heavy-duty applications.

⭐ Important: The availability of vane and rack-and-pinion designs ensures optimal torque and precision selection for any automation requirement.

Total Crossed Beams

(Translated as full angular coverage and motion reliability)

• Rotary actuators provide complete rotational capability across the available angle range.
• Internal guide systems ensure the shaft remains stable during rotation, preventing wobble and maintaining alignment.
• This delivers repeatable, smooth rotational motion even during high-speed operations.

Beam Pitch Options

(Translated as torque ranges, angle variants, and size options)

• Available in multiple torque classes—from small, compact units for lightweight tasks to high-torque models for heavy industrial parts.
• Different rotation angles: 90°, 180°, 270°, 360°, and adjustable variants with stops.
• Bore and size variations support a wide range of mounting geometries and torque levels.
• Specialized versions include:
  • Double-vane actuators for increased torque
  • Parallel-shaft rotary units
  • Semi-rotary drives combined with linear slides

⭐ Important: Multiple torque levels and rotation angles provide maximum application flexibility, from delicate positioning to heavy component rotation.

Intrinsic Synchronism

• Internal gear engagement or vane chambers maintain synchronized movement throughout rotation.
• This ensures accurate angular repeatability, which is crucial for assembly machinery, pick-and-place robots and indexing mechanisms.
• Synchronism prevents drift and guarantees stable long-term performance.

Operational Advantages

• High torque output for demanding rotational tasks
• Compact form factor, ideal for integration into tight machine spaces
• Adjustable rotation angles, increasing flexibility
• Smooth motion and long lifetime thanks to robust internal cushioning
• Sensor compatibility for end-position or mid-position control
• Applications: Rotary indexing, flipping/turning parts, gate control, gripper rotation, packaging automation, assembly lines.