Board loading, unloading and processing machines comprising board unloader, board loader, bare board vacuum loader, board inverter, angle turning machine, gate passage conveyor, buffer loader, buffer conveyor, conveyor, [ ball grid array unloader, ] for use in pushing design production line automatic temporary storage equipment [ ; tin spray machine for spraying liquated tin on large components; automatic spray fluxer for spraying soldering flux in PCB; Pb-free soldering machines, autogenous ...