Letter Openers

Discover Letter Openers from Postmark and Martin Yale, designed for fast and reliable envelope opening in busy mailrooms. Built for high-volume production with consistent performance and minimal jamming. These automatic openers handle various envelope sizes and paper types. All units include OEM warranty and free shipping on qualifying orders.

Professional automatic letter openers for high-volume mailrooms.

Letter openers range from a simple manual desktop unit to production machines that open several thousand envelopes an hour. The choice comes down almost entirely to daily volume.

Automatic openers take a very thin trim from the envelope edge, which is both faster than a hand opener and safer for the contents.

What we stock

For office use we stock the 1624 manual letter opener, the 1632 automatic opener — which handles high-volume mail quickly and takes a range of envelope sizes with adjustable cutting depth — and the 62001 deluxe opener. For production mailrooms, the PostPostmark6, 3068 and 3078 automatic openers handle continuous high-volume work, and the MTF2 mixed thickness feeder is available for varied mail streams.

How to choose

Envelopes per day — Under about 100, a manual opener is fine. Above that, an automatic model quickly justifies itself.
Envelope sizes — Check the machine accepts your full range, from standard business envelopes to larger formats.
Cutting depth — Adjustable depth is what lets you open thin and bulky envelopes without touching the contents.
Continuous running — Production models are built to run for hours; office models are built for bursts.

Frequently asked questions

How many envelopes per hour can the 1632 open?

It is rated for high-volume mail processing — the product page lists the exact figure. It takes a range of envelope sizes and has adjustable cutting depth so contents are not damaged.

Will it open envelopes of different thicknesses in the same run?

Office models handle a reasonable spread. For mail where thickness varies widely — thin letters through to bulky contents — the Postmark MTF2 mixed thickness feeder is the proper solution.

Is a manual opener good enough for a small office?

For modest volumes, yes. The 1624 is reliable and needs no power. The test is simply whether opening mail is taking up a meaningful part of someone's morning.

Can these open padded or plastic envelopes?

They are designed for paper envelopes. Padded mailers and poly envelopes generally need opening by hand. Check the product page for the stated envelope types.