September 12, 2013
Yaskawa Motoman has introduced new models of its Ferris wheel-style part positioners. Two servo-driven trunnion/station axes are on opposite sides of a central sweep axis; one station is positioned in front of one to four welding robots, while the other station is outside the robot envelope where the operator loads and unloads parts. The 180-degree sweep axis rotates the stations over and under the central axis between the robots and the operator.
New slim-line positioner models have a 17 percent smaller width than standard positioners and are available with 0.8-ton (RM2-755SL) and 1.38-ton (RM2-1255SL) payload capacities. Overall positioner width is 3.28 ft. wider than the part span (standard lengths are 6.56 and 9.84 ft.); the positioner can rotate parts up to 4.27 ft. dia.
Two extra-large-capacity positioners provide a higher payload and turning diameters in a reduced profile. They feature 1.71-ton (RM2-1555) and 2.6-ton (RM2-2355) payload capacities.