The Selective Compliance Assembly Robot Arm (SCARA) has a circular working range. Composed of two parallel joints, it can provide adaptability on a selected plane. The rotating axes are positioned vertically, and the end effector mounted on the arm moves horizontally. SCARA robots specialize in lateral movements and are mainly used in assembly applications. Compared with cylindrical coordinate robots and Cartesian robots, SCARA robots can move faster and are easier to integrate.