DRT 100 Stage

DRT 100

DRT-100 Rotary Stage is an ultra-compact, direct drive rotary table that establishes a new level of price, performance, and compactness. Its direct drive technology eliminates the gear wear, torque variations, and backlash conventional rotary tables encounter. Speed, resolution, and repeatability are also increased by a factor of ten or more over gear driven rotary tables. Despite its high level of performance, the DRT-100 Stage is very compact, with body dimensions of 105mm x 105mm x 65mm. Its 25mm through-bore allows convenient routing of optical beam paths or vacuum/pneumatic lines. The DRT-100 Table offers a standard resolution of 20 micro-radians (~4 arc-seconds, or 0.0011 degrees); due to its direct drive technology, the repeatability is +/- 1 count, or +/- 20 micro-radians. Speeds to 10 revolutions per second, and accelerations to 400 revolutions per second, permit rapid point-to-point moves. Settling times are minimized due to the direct drive design, which allows high servo bandwidths to be achieved. Unlike other direct drive rotary tables, the electronic interface is completely standard, with digital A Quad B encoder outputs, a standard three phase brushless motor, and three digital Hall commutation sensors. This allows the DRT-100 Stage to be driven by any commercial motion controller/amplifier that can drive standard three phase brushless motors. The ultra-stiff 4 point contact ball bearing provides a high degree of axial and torsional stiffness, and a once per revolution index sensor allows a unique home location to be defined.

• High Speed - direct drive motor achieves speed to 10 revolutions/second (3600 degrees/second!) with high servo bandwidth for fast move and settle times
• Reliable - no gear wear, torque variation, or backlash!
• Ultra-Compact - only 105mm x 105mm x 65mm high
• Open Architecture Design - the first direct drive rotary table that can be controlled and driven by any brushless servo system
• High Repeatability - ±1 count (4 arc-seconds)