The FD 430 can close and seal envelopes in a single pass. This fast, easy to use machine can handle all size envelopes up to 9.75" wide and up to 15" long. Simply place a stack of envelopes in the adjustable infeed tray, envelopes can nested with the flaps open or stacked individually, adjust the speed control knob and let the FD 430 do the rest. The FD 430 can process up to 18,000 envelopes per hour depending on size and thickness. Sealed envelopes stay neatly stacked in the outfeed tray. The FD 430 features a heavy duty, rugged steel body. Other features include a Precision Moistening Roller, an Adjustable Envelope Separator and a Flap Closing Bar. All of these add up to reliable, efficient performance that will save your business valuable time and streamline your mailroom operations.