Martin Yale Postmark 3056 Letter Opener

 In stock

Cross Sell


Martin Yale Postmark 3056 Letter Opener



Opens up to 24,000 envelopes per hour with soft, feathered edges. Opens mixed mail, from the smallest to the largest, completely. Opens up to 6mm (1/4”) thick envelopes. The entire system is built to handle large flats and envelopes.






  • Milling Cutter Technology 
  • Simple, Intuitive Controls 
  • Dual-Motor Design 
  • Transparent Waste Bin






Description Automatic Milling Cutter
Daily Volume (filled envelopes) Up to 20,000
Max Envelope Thickness .25" (6mm) (auto feed)
.39" (10mm) (manual feed)
Max Envelope Length 13" (330mm)
Depth of Cut 0.7mm (Factory set)
0 - 3mm (Tool Adjust)
Receiving Tray Capacity 100
Feeder Capacity (envelopes) 100
Theoretical Speed (envelopes/hr) 24,000
Production Speed (envelopes/hr) 8,000



Standard delivery is 5 to 7 business days for normal orders, to arrange for any kind of express delivery or overnight services please call 1-800-374-9271



Thank you for shopping at Automated Business Systems! We offer refunds and/or exchanges within the first 14 days of your purchase, if 14 days have passed since your purchase, you will not be offered a refund and/or exchange of any kind. Your item must be unused and in the same condition that you received it.