Precise positioning from rotary stage
A
Rockwell Automation product story
Edited by the Engineeringtalk editorial team
Apr 17, 2003
The RDR-160 is a direct-drive rotary positioning unit that has been designed for precise position and velocity control.
Anorad's RDR-160 is a direct-drive rotary positioning unit that has been designed for precise position and velocity control.
The compact design consists of a brushless DC servomotor, a high-resolution optical encoder and four-point contact precision bearing set.
The housing and carriage are made of Nickel plated precision machined aluminium.
The main advantages that the RDR stage have over traditional gear driven rotary tables are higher accuracy and repeatability, no gearing, smoother motion, higher speed and zero maintenance.
A resolution of 0.36 arc-sec results enables a repeatability of +/-1arc-sec and a positioning accuracy of +/-15 arc-sec.
Flatness and concentricity are within +/-5 and +/-2.5um, respectively.
The Anorad RDR 160 rotary stage is also available as a 100mm-diameter version and is ideally suited for applications such as precision assembly, laser machining and high accuracy inspection.
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