The 70LETT 3078 DocuGem 70LETTLO 3078 Automatic Letter Opener saves time and money. The DocuGem LO 3078 (4073) is a stand alone fully automatic floor model letter opener. Opens up to 20,000 envelopes per hour (production speed; theoretically, up to 36,000 envelopes per hour) in a variety of sizes up to a maximum 6mm (1/4") thickness with automatic feed, and 8 mm (5/16") thickness with manual feed. This model features reverse flow conveyor which allows the operator to stand in one place to both feed and to remove opened envelopes. This increases the production rate by approx. 50%. Also has the milling cutter technology which protects the contents from being cut or damaged. Removes from 0 to 3mm (1/8") of the envelope edge. The removed material is in the form of tiny chips, which are deposited in the waste bin. Creates a soft, feathered edge opening, which prevents paper cuts and gives easy access to the contents. Milling cutter can be turned off to verify counts or count outgoing mail. Touchscreen controls three feed settings (Basic, On Delay, and On Demand ) and displays four different counters (normal, batch, lifetime, and rate). Made of solid steel construction and sporting two motors, this unit is built to handle large flats and envelopes.