30T Rubber Wheel Free Turning Steerable Transfer Car. Load Weight : 1t-50t. Cart Travel Speed : Up to 25m/min or (plant safety standard) Load Size/Shape : Customer Supplied. Battery Voltage : 24V/36V/48V/72V. Battery Charger : On board charging; free-floor standing charger. Safety Equipment : lights, E-stop, bumpers and laser,horns, sensors etc.