■The calibration environment can be controlled: the calibration room adopts an automatic induction opaque roller shade, and the light is automatically turned off during the calibration period. A total of 40 Philips led grille lights (5 columns × 8 lights per row) are arranged directly above the calibration room, and the lighting is installed directly above the vehicle body with the beam vertically downward, ensuring that the surface illumination of the calibration plate is 250 ~ 750 lux, the difference in illumination of each part is less than 100 lux, and there is no shadow on the calibration plate.

■Professional calibration plate specifications: PETG plate (thickness 5 ~ 10mm), strong stability, small deformation under the influence of temperature, wear resistance, and general bump resistance; the board area is treated with matte paint sandblasting (no reflective material), and the surface roughness is 0.2

■Automatic alignment of the vehicle: The MR300-2 internal expansion aligner pushes the tires through the synchronous expansion of the cylinder, automatically making the vehicle centerline coincide with the equipment centerline without manual and repeated adjustment.

■Reliable structure and easy maintenance: The aligner moving mechanism adopts a "" -shaped structure, and the left and right mobile push rods are connected through a zigzag structure to ensure that the left and right movements are synchronized and the movement distance is consistent; the bearing connection is used between the middle column of the strut and the swing rod to reduce friction and prolong the life; the joint bearing connection is used between the middle swing rod and the tie rod to eliminate the stress caused by installation errors; the middle vertical rod is bolted to facilitate later disassembly and maintenance.

■Solid frame material: The V-shaped groove of the front axle adopts 4 10mm steel plates with the same specifications as the 2 plates, and the main frame is welded with channel steel.

■The calibration door has excellent performance: the weight system built into the door frame balances the weight of the door body; the door frame material is galvanized steel; the maximum speed is 2.0m/s; the left high-speed frequency conversion motor; the 2mm thick opaque woven door curtain; the encoder positioning system; the self-triggering safety bottom and the safety light eye placed in the door frame; the emergency device that automatically opens when the door is pulled down; the EFA-TRONIC microcomputer processor control unit; the two-side button switch is activated.

■Beat to Capacity Match: Regular Production Beats<60 秒/台，生产纲领双班 30 万辆/年。

■Clear signal indication: The red warning light flashes during the calibration process to indicate that the vehicle is calibrating and cannot be driven in and out; the calibration is over; the aligner putter is back in position, the red signal flashes to indicate that the calibration is over, and the vehicle can be driven in and out. Siemens PLC is used as the main control system, and the pull wire switch is used to extend and close the aligner push rod.