Positioning actuator boasts high force linear motor

According to THK, the GLM20 complete 1-axis positioning system offers the highest acceleration/deceleration, and lowest noise levels in its class. The Type GLM20 is capable of operating at speeds up to 4 m/sec. and 2G. THK's GLM20 achieves accuracies of 1 micron average or better. Use of a fully closed control with a direct drive and an optic linear encoder provide accuracy without motion loss and backlash. The Type GLM20 provides 3000N (674 lb-f) of continuously useable linear force. An instantaneous peaklinear- force of 4500N (1011 lb-f) is also achieved, while multiple sliders installed on a single-axis base allow sliders to be individually controlled. The Type GLM20 is available in strokes of up to 4.4 meters (in a single unit). The GLM20 utilizes THK's patented LM Guide Type SSR with Caged Ball Technology and provides a low noise of 53dB during operation at 2m/sec. Incorporating patented Caged Technology, this actuator operates with reduced dust generation and high speeds at the same time. The watercooled linear motor and an optical linear encoder make this actuator applicable for demanding automated systems such as electronics assembly, semiconductor wafer / large LCD production, and robotics where continuous high-acceleration and highspeeds are required. THK America, Inc. Schaumburg, IL thk.com