EFS Pro Envelope Sealer
$7,500.00
💳 Prefer monthly payments? Most machines qualify for leasing — estimate your monthly payment or call 866-430-2874.
The Postmatic EFS Pro is a compact, portable envelope sealer that moistens and seals filled envelope flaps at up to 10,000-12,000 per hour — including tricky square invitation flaps — from A5 up to 10×13.
Description
About the Postmatic EFS Pro Envelope Sealer
The EFS Pro Envelope Sealer / Feeder, sold by Postmatic, is so convenient, fast and easy to set up that you will never want to hand-seal envelopes again. It handles envelopes from A5 up to 10×13 with a variety of flap styles — even the square invitation flaps that jam most automatic sealers — and delivers consistent feeding and flap-sealing quality. Changing envelopes to start a new job takes just seconds.
It runs up to 10,000-12,000 pieces per hour with advanced sealing technology, variable speed control and tool-less setup, on a portable tabletop footprint that works in any mailing operation. A removable stacking tray lets it run inline with addressing systems and stamp affixers, and a digital counter tracks the job. It handles thicknesses up to 1/4″, with a belt speed of 300 ft/min, runs on 115 VAC, and weighs 75 lbs. It seals most commercial, catalog, booklet and announcement envelopes with side, center and diagonal seals. For best results, use sealing fluid rather than plain water to reduce mold and use SFM203 rubber roller cleaner to prolong belt life.
EFS Pro Specifications
| Model | EFS Pro Envelope Sealer / Feeder |
|---|---|
| Machine type | Tabletop automatic envelope feeder and flap sealer |
| Speed | Up to 10,000-12,000 pieces per hour |
| Belt speed | 300 ft/min |
| Envelope sizes | A5 (about 5-3/4″ long) up to 10″ x 13″ |
| Maximum thickness | Up to 1/4″ |
| Flap styles | A variety of flap styles, including the square invitation flaps that jam most automatic sealers |
| Seal types | Side, center and diagonal seals on most commercial, catalog, booklet and announcement envelopes |
| Speed control | Variable speed control |
| Setup | Tool-less setup; changing envelopes to start a new job takes seconds |
| Output | Removable stacking tray — allows inline running with addressing systems and stamp affixers |
| Counter | Digital counter |
| Power | 115 VAC |
| Weight | 75 lbs |
| Recommended supplies | Sealing fluid rather than plain water (reduces mold); SFM203 rubber roller cleaner to prolong belt life |
Figures above come from this product’s own published page copy. Dimensions are not published for the EFS Pro, so no footprint row is shown — call 866-430-2874 for those.
Why sealing fluid matters for speed. The EFS Pro’s rated 10,000-12,000 per hour reflects the feed and seal mechanism at full capacity — real-world speed depends on how quickly the flap glue wets and sets. A quality sealing fluid (not plain water) helps the machine seal reliably at that rated speed, and helps prevent the mold and odor that can develop when water sits in the reservoir.
Still Supported by All For Mailers
The EFS Pro is a current All For Mailers envelope sealer, fully supported with sealing fluid, belts, parts and supplies. This page is kept as a reference for shops comparing envelope sealers. Need documentation or parts? Download the EFS Pro manual, or find parts and supplies for this machine at SuppliesForMailers.com.
Also sold as the RENA ES-450. Quadient/RENA once planned to resell this exact machine under their own name and purchased a small batch before discontinuing the plan. All For Mailers purchased their remaining stock outright — the last 3 units ever labeled RENA ES-450 are being sold here under that name; every unit after that is this same EFS Pro, sold under its standard name. The EFS Pro carries a $7,500 MSRP. Its RENA-badged twin, the ES-450, was originally listed at $11,840; those last three RENA-badged units are priced at $5,495.
Protect what you have. These machines were built to last, and the mechanics will outlive the electronics every time. If you’re running one, put it on a quality surge protector, and add static protection — especially in dry winter air or on high-speed paper handling. Power spikes and static are what kill boards, and on these machines a board may not be replaceable at any price. It’s the cheapest insurance there is for equipment you can’t simply reorder.
Need supplies or parts? Visit SuppliesForMailers.com.
Additional information
| Speed (pieces/hr) | Up to 10,000-12,000 pieces per hour |
|---|---|
| Power | 115 VAC |
| Weight | 75 lbs |
| Max Media Size | Up to 10 in x 13 in (254 x 330 mm) |
| Media Thickness | Up to 0.25 in (1/4 in) |
Frequently Asked Questions
Is the EFS Pro still available new?
Yes — the EFS Pro is an actively sold envelope sealer. Order online for free shipping to the lower 48 plus free belt cleaner and sealing fluid, or contact us for details.
What sizes and speeds does the EFS Pro handle?
It seals envelopes from an A5 (about 5-3/4″ long) up to 10″ x 13″, up to 1/4″ thick, at speeds up to 10,000-12,000 per hour.
How does the EFS Pro compare to the AFM300S?
The EFS Pro is the tabletop workhorse at up to 10,000-12,000 pieces per hour and handles awkward square invitation flaps. The AFM300S is the high-speed option at up to 300 envelopes per minute across C6/5 to C4/B4 formats.
Can I still get parts and supplies?
Yes — visit SuppliesForMailers.com or call 866-430-2874.






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