Abstract: An automated insertion apparatus for inserting at least one insert into each of a multiplicity of reactor channels. The apparatus comprises a feed position that supports a magazine that holds a multiplicity of inserts, and a transport mechanism defining at least two support channels each configured to hold a single insert, and means to transport each support channel repeatedly between an input location adjacent to the feed position and an output location, and means to feed one insert from a magazine at the feed position into a support channel of the transport mechanism at the input location. The apparatus also includes a transfer mechanism to push an insert into a reactor channel, and an alignment mechanism to ensure that the insert that is being inserted is aligned with the reactor channel. The transfer mechanism is adjacent to the output location. The transport mechanism may be a rotary drum.