JUKI pick and placers are medium-sized machines called "modular-type". This type is characterized by the flexibility to re-arrange the manufacture line depending on the amounts of productions of customers. Until now, the mainstream has been the large-sized machines. However, they have a large amount of capital investment and it is difficult to re-arrange the manufacturing lines, and they can not correspond to the sudden changes in items and amount of production. The modular-type in which several medium-sized machines are connected can provide the best manufacturing lines required by customers with less amount of capital investment.