Executive Summary
The Postmatic EFS Pro is an automatic envelope sealing machine that brings heavy-duty mailing automation to a portable, desktop footprint. Engineered to handle the rigors of commercial mailing, it offers completely tool-less setup and quick changeovers to process various flap styles — including commercial, catalog, and announcement envelopes. Whether utilized as a dedicated off-line sealing station or placed inline with downstream mailroom equipment, the EFS Pro guarantees professional, secure, and mess-free envelope sealing on every run.
Key Advantages
Advanced Sealing Technology: Delivers perfectly consistent, high-quality moisture sealing for round, pointed, side, diagonal, and center seals (note: excludes square flaps).
Tool-Less Changeovers: Designed strictly around operator convenience, allowing for incredibly fast, simple physical adjustments when switching between different envelope sizes and mailing jobs.
Versatile Media Handling: Easily transitions from processing thin #9 commercial envelopes to bulky 10" x 13" booklets packed up to 1/4" thick without jamming.
Variable Speed & Tracking: Features a variable speed dial to pace production perfectly with your operators, paired with a reliable digital counter for accurate job tracking.
Postmatic-Grade Reliability: Built on Postmatic's 40+ years of mailing equipment expertise, ensuring years of durable, jam-free feeding.
Sealing Supplies: Need envelope seals, wafer seals, or mailing tabs for your finishing line? Mailtech stocks them, with local delivery on volume orders.
Technical Specifications
Frequently Asked Questions
What is an automatic envelope sealing machine?
A machine that moistens and seals filled envelopes after inserting. The Postmatic EFS Pro is a desktop sealer that runs up to 10,000 envelopes per hour, including stuffed booklet envelopes up to 1/4 inch thick.
What envelope sizes and flap shapes can an envelope sealer handle?
The EFS Pro seals round, pointed, side, diagonal, and center flaps on envelopes up to 10 x 13 inches. It does not seal square flaps, so plan around that if your job uses them.
Can an envelope sealer run inline with an inkjet addresser and stamp affixer?
Yes. With its stacking tray removed the EFS Pro sits inline, typically between an addressing inkjet and a Postmatic stamp affixer, sealing pieces just before postage.
Do you sell envelope sealers like the Formax FD 430?
Yes. Mailtech carries Formax and Postmatic sealers from desktop units to the EFS Pro, and we can match a sealer to your envelope sizes, thickness, and hourly volume. Call with the job and we will recommend the right one.
How do you seal a lot of envelopes without licking them?
Past a few hundred pieces, with an automatic sealer. Small runs use a moistener bottle or sponge; at volume the EFS Pro gives consistent seals with no missed flaps and no operator fatigue.
