PURPOSE: To position a pallet accurately against the work station without requiring the accuracy for the relative position between the chain and the pallet by employing a newly deviced coupling mechanism between the chain and the pallet.

CONSTITUTION: It is comprising a transfer device 1 where a plurality of magnets 10 are arranged along the moving direction with predetermined interval, a work mounting pallet 6 where at least the portion corresponding to said magnet 10 is formed with the magnetic member and stoppers 13, 14, 15, 16 for positioning the pallet selectively and the advance length of the chain 7 is set such that the moving pitch Pc will be slightly larger than the moving pitch P1 of the pallel 6.