Bullfrog Enterprises
Updated January 15, 2021    Contact Us
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High Efficiency

Opens up to 400 opened envelopes per minute. Self-adjusting feeder handles stacks of mixed-size mail and envelopes as thick as 4.8mm. Process various envelope types, including flats and rigid overnight packs.

Low Waste

The Series 410 minimizes the amount of waste produced throughout the extraction process. Since our milling cutter "chips" away the edge of the envelope, the tiny waste chips are guided into a large capacity chip bin that can be easily emptied

User Friendly

Simple navigation allows operators to quickly and easily select one of eight preset jobs. 5.5" display provides user-friendly access to job functions, settings and digital counter.

Proven Technology

Proven milling cutter technology protects envelope contents from being sliced or damaged. Processed envelopes have a soft, feathered-edge opening, eliminating paper cuts. Three cut-depths for optimal opening of thicker mail pieces plus a no-cut setting for piece counting.

Date Stamp Incoming Mail

Needing to date stamp and track your incoming mail is crucial to ensuring accuracy and compliance in some industries and applications. An integrated ink jet printer allows for date and time audit trails as well as a unique sequence number for traceable mail


Speed Up to 400 envelopes per minute (6” envelope)
Envelope Opening All sizes and types (including overnight packs)
Maximum Thickness Up to .188" (4.8mm)
Depth of Cut From .01" (.25 mm) up to .07" (1.79 mm)
Physical Dimensions 40.5”L x 18”D x 14.3”H
Weight 55 lbs.
Power Requirements 110-140 VAC, 60HZ, 5A
220-240 VAC, 50HZ, 3A