PURPOSE: To make unmanned operation of a cash circulator for cash supplying and collecting works by arranging a plurality of automatic cash processing machines and a plurality of centralized safes in arc-like form and by installing a robot in the central section of the arc.

CONSTITUTION: A plurality of automatic cash processing machines 1 are installed adjacent to one another along a circumference C, and two adjacent automatic cash dealing machines 1 are connected with a decorated plate 4. The shop side (customer side) B is partitioned from the operation side A by a wall 5, and the operation side A is provided with centralized safes 2 arranged circumferentially on the circumference C. The central section of the circumference C is provided with a robot 3, and the robot 3 can turn around an axis 30, can move vertically, and has articulated arms or expandable and contractible arms. Furthermore, hands 32 installed at tips of arms 31 enable the cash circulator to have access to automatic cash processing machines 1 and centralized safes 2. Thus, the complete unmanned operation of automatic cash processing machines is made possible.