Purpose of the Device: The SIP point serves as a reference point for the design of vehicle cab seats; the SIP point calibration device is a tool used to measure and determine the SIP point on a vehicle.
Load Mass: The load mass of the device ranges from 26 kg ± 1 kg up to 65 kg ± 1 kg. The midpoint of the vertical force exerted by the added mass should be located 40 mm before the SIP mark on the horizontal section of the device. To apply the load, first attach two 10-kg weights to the device (which has a self-weight of 6 kg), bringing the total to 26 kg ± 1 kg; Then, load the device with two 9.5-kg weights and two 10-kg weights, respectively, until the total mass reaches 65 kg ± 1 kg.