The eclipsed opening style, make passageway 1.5 times width than general sliding doors without increasing the width of door opening. The specific design driving unit makes outside door leaves move faster than inside door leaves, thus they can arrive the door pillar at the same time. Usage occasion: places in need of large channel such as automobile showroom, airport, and market etc. Technical Data Clear opening width 1200~4000mm Opening way one-way(double leaf) or two-way(four leaf) Max. passage height 2500mm Max. weight of door leaves 4*125kg Opening speed 100~500mm/s (adjustable) Closing speed 100~500mm/s (adjustable) Creeping speed 30~100mm/s (adjustable) Hold-open time 0~9s Main power supply 110~260V, 50/60Hz Current 0.6A Motor Power 80W Power at leisure 14W