Steppers and servomotors drive elevator-rotary stages

June 18, 2024

ATR-V-60-60 series (-01 through -04) compact, dual-axis, elevator-rotary stages feature a high-stability elevator stage with a 120 mm x 80 mm table, 60 mm ±2 mm of vertical travel, and a load capacity of 5.0 kg.  A 60 mm diameter rotary stage is mounted vertically. The scissor lift design of the elevator stages combined with precision roller bearings and slide rails assures smooth motion and high parallelism as the table travels. ATR-V-60-60 are capable of continuous rotation, and feature high precision bearings and 90:1 worm gear.

ATR-V-60-60-01 (shown) is driven by two-phase stepper motors with micro-stepping capabilities. Elevator stage repeatability is typically ±5 microns, typical positional accuracy is 15 microns, and rotary stage resolution is 0.72 arcsec (1° = 3600 arcsec). ATR-V-60-60-02 is driven by three-phase, brushless, servomotors with quadrature incremental optical (QIO) encoders, while AT10-60-03 is driven by DC-brushed servomotors with QIO encoders. These servomotor-driven stages feature higher repeatability, positional accuracy, and higher travel speeds typical of a closed-loop system. QIO encoders for position verification have also replaced manual adjustment knobs on ATR-V-60-60-04 stepper motor-driven, dual-axis stage.

The rotary stage’s table has threaded holes for fixtures or tooling, and accessible, countersunk holes in the base of the elevator stage allow easy integration into a new or existing application. ATR-V-60-60 series also require a motion controller that can be ordered as a complete plug-and-play system with RS-232, USB, joystick, trackball and keypad control.

Optimal Engineering Systems Inc.

888-777-1826, 818-222-9200