Here is another heavy duty robot that can take on a variety of tasks. The SDR 4WD All-terrain Robot from SuperDroid Robots comes with 120 RPM wheelchair motors and 13″ tiller tires. The robot is only 26 inches wide, so it should fit between standard doors.
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New Heavy Duty 4WD All Terrain Robot by SuperDroid Robots
The machine has a max payload of 250lbs. It has a top speed of 5mph. With the FLYSKY remote control, you can wirelessly control the robot.
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