The Hollow Rotary Actuator is one kind of product for the circular motion between the cam index and DD motor. With a balance between the two, the repetitive positioning accuracy is no more than 5 seconds, the motor is easy to prepare and the load is stable. It can be matched with AC servo motor or stepper motor for arbitrary Angle segmentation, which can realize the multi-point orientation as DD motor but also has better cost performance than DD motor. And it is widely used in diverse rotary applications.
The hollow rotary actuator is driven by motor to realize automatic Angle adjustment. Finishing worm gear or gear drive, Angle adjustment unlimited. Precision shafting design, ensure precision high, large load; Stepper motor and transmission parts are connected through imported high-quality elastic couplings to eliminate space and machining position errors.
Accurate data: Now LIMON hollow rotary actuators are sized in 60, 85, 135, 200. The surface is through high and middle heat treatment which the grinding precision can be ISO6 and surface hardness HRC 65. Also the repetitive accuracy is ±15arc-sec, and concentricity&flatness ±0.05 mm.
Now the hollow rotary actuator is applied in different industries especially in the 3C industry like the grinding machine of mobile phone shells, also visual testing equipment, Laser equipment industry, Semi-conduct equipment industry, also highly matched with the linear module for some applications, etc. It can be used for applications in which accurate positioning and heavy load tolerance capacity is a must.
What is the difference between linear actuator and rotary actuator?
A linear module moves in a straight line, usually in a back and forth motion. In contrast, a hollow rotary actuator moves along a circle at a specific Angle with reference to the midpoint of the circle, enabling 360 degrees of multi-point positioning.