Folder Inserters < All FP Products Folder Inserters Save time by letting FP Folder Inserters do the work for you. FPi 600 Feed. Fold. Seal. There’s nothing our FPi 600 folder inserter machine does better! FPi 2300 The FPi 2300 folder inserter gives you the best solution for folding and inserting your business critical documents. FPi 4700 The FPI 4700 folder inserter automatically organizes every document for perfect sequence and collation. FPi 5700 The FPi 5700 turns any mail center into a strategic business asset, providing a platform for processing your business critical mailings. FPi 6700 The FPi 6700 raises the bar in complicated mailroom processes with its many high volume mailing capabilities.