Rotary Actuators
Competitive Selection Guide
Determine which technology best suits your application

  Helical Actuators Rack & Pinion Actuators Vane Actuators Cylinders*
  Helac Helical Actuators Helac Rack & Pinion Actuators Helac Vane Actuators Helac Cylinders
Powerful        
Torque output
Bearing capacity
Consistent force in both directions
High
High
Yes
High
Low
Yes
High
Low
Yes
None
None
No
Drift Free Positioning        
Zero internal leakage
Smooth operation
External brake required
Shock resistance
Yes
Yes
No
High
Yes
Yes
No
Low
No
Yes
Yes
Low
Yes
Yes
No
High
Ultra Compact        
High power density
Fits in tight spaces
High
Yes
High
No
Medium
Yes
Low
No
Streamlined Design        
Eliminates linkages and bearings
Reduced Bill of Materials
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Durable        
Moving parts enclosed
Low maintenance
Yes
Yes
Yes
Yes
Yes
No
No
No
Rotation        
Rotation angle
Consistent rotation speed and torque through entire range of motion
High
Yes
High
Yes
High
Yes
Low
No

* Cylinders require linkage for rotary motion.                                                                                                                   we carry the load.