Positioning with accuracy and strength
The KDT 180-DC XY positioning stage from the Steinmeyer FMD Group, Burlington, Mass, travels 60 mm each direction with 5-μm accuracy and 1-μm repeatability.
The KDT 180-DC XY positioning stage
from the Steinmeyer FMD Group, Burlington, Mass, (feinmess.de) travels 60 mm
each direction with 5-μm accuracy and
1-μm repeatability. Speeds can be as high
as 200 mm/sec, with accelerations up to
0.1 m/sec2. The unit has a relatively small
footprint of 199 X 199 mm, and a 32-mm
height. The drive mechanism for each axis,
namely a precision preloaded miniature
ball screw coupled to a dc motor and encoder, are inside the stage. The frame is
high-strength anodized aluminum, and the
entire device weighs about 5.5 lb. It handles loads up to 50 N.
The standard model includes backlashfree preloaded cross roller bearings and
a 90-mm square hole in the middle to let
light or objects pass through the center of
travel.