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Selection Guide (Push Force / Continuous Operation Thrust)Selection Guide (Push Force / Continuous Operation Thrust)The following three conditions must be met when using this device.Condition 1: The pushing time must be less than the time determined.Condition 2: One cycle of continuous thrust must be less than the rated thrust for an ultra-high-thrust actuator. Condition 3: There must be one pushing operation in one cycle.Selection Method Condition 1. Pushing TimeThe maximum pressing time for each pressing order must be determined as shown in the table below. The pressing time used must be less than the time indicated in the table below.Actuator malfunction could result if the process is used without adhering to the table below.Table 1RCS2 SeriesUltra-high-thrust Rod TypePushing Order Value (%)70 or less 110 130 150 170 190(Continuous pushing possible) 23058 33 21 15120 130 140Pushing Order Value (%)190 20080~100120140160180Maximum Pushing Time (sec)30095432718[Pushing Time]300 250 200 150 100500100 110150 160 170 18020013Condition 2. Continuous Operation ThrustConfirm that 1 cycle of continuous operation thrust Ft, based on a consideration of load and duty, is less than that of the rated thrust for a ultra-high-thrust actuator.Note that there must one pushing operation within one cycle.Vt2at2ft2dtwF2d F2ft2fF2at2aFwt2d twRe-plot this using theT thrust values as the vertical axisF F1aF1dt1a t1f t1d t0tUse the equation below to calculate the continuous operation thrust Ft for one cycle. Ft =tSince F1a /F2a /F1d /F2d will change with the direction of motion, use the equations below.* For horizontal use, it is not necessary to calculate the thrust needed for constant speed motion and for waiting.t1dt0Tttt 1a t1f t1d t 0: Operation duration per cycle (s) : Acceleration duration1: Constant speed duration1: Deceleration duration1: Pushing durationt 2a : Acceleration duration2t 2f : Constant speed duration2 t 2d : Deceleration duration2t w : Waiting durationF1a : Thrust1 needed for accelerationF1f : Thrust1 needed for motion at constant speed F1d : Thrust1 needed for decelerationF0 : Thrust needed for pushingF2a : Thrust2 needed for accelerationF2f : Thrust2 needed for motion at constant speed F2d : Thrust2 needed for decelerationFw : Thrust needed for waitingHorizontal use (for both accel./decel.) Vertical use, downward acceleration Vertical use, constant downward speed Vertical use, downward deceleration Vertical use, upward acceleration Vertical use, constant upward motion Vertical use, upward deceleration Vertical use, waitingF1a = F1d = F2a = F2d = (M+m) × dF1a = (M+m) × 9.8 − F1f = (M+m) × 9.8 + F1d = (M+m) × 9.8 + F2a = (M+m) × 9.8 + F2f = (M+m) × 9.8 + F2d FW=(M+m)×9.8(M+m) × d (*1)(M+m) × d (M+m) × d(*1)M : Moveable weight (kg) m : Loaded weight (kg)d : Accel./decel. (m/s2): Thrust (taking into account the travel resistance by the external guide.)*1 If an external guide is attached,it is necessary to consider travel resistance.Moveable weight for ultra-high-thrust actuator: 9kgAppendix: - 71 Technical Reference/InformationF1ft1fF0t1aPushing Time (sec)