Product descriptions from the supplier Overview Precision Motorized Goniometer Stage Optical Radian Tilt Slide Platform PT-GD 313 Product specification: Model Number PT-GD 313 Platform Size(mm) 160 160 Adjustment Range ±30 ° Resolution(8 subdivisions) 0.0005625 ° Repetitive Positioning Accuracy (mm) 0.004 ° Transmission Ratio 400:1 Axis Height 139 Motor 57 Stepper Motor (1.8 °) Maximum Static Torque(N.m) 1.5 Rated Working Current 3A Max Speed (2 subdivisions) 10 °/s Max Center Load (kg) 30 Weight(kg) 14