All For Mailers Inc. has added another Low Cost Automatic Envelope Sealer that seals up to 130 envelopes per minute! Why hand seal envelopes, one at a time?  Simply place a stack of envelopes in the machine and switch it on, Thats it You’re Done!!! ENVELOPE SPECIFICATIONS Minimum-maximum length 9˝- 12.8˝ Minimum-maximum width 3.5˝- 5.5˝ […]