
Automatic letter opener · Martin Yale
Martin Yale 1632
Speed: Up to 7,000 envelopes per hour · Maximum thickness: 3/16" (0.5 cm)
Listed on the manufacturer's website (source, as of Oct 18, 2026)
Amazon link (affiliate). We confirmed this Amazon listing is the Martin Yale 1632 on Oct 18, 2026. Reviews are Amazon customers' own and are not shown or summarized here.

Where to buy
Machines in this class are mostly sold and serviced through the manufacturer's authorized dealers. Amazon links are affiliate links. We don't show prices; ask a dealer or check the retailer for the current price.
Specifications
| Brand | Martin Yale |
|---|---|
| Model | 1632 |
| Type | Automatic letter opener |
| Cutting method | Edge trim; cut width 1/8" (0.3 cm); blades fully enclosed |
| Speed | Up to 7,000 envelopes per hour |
| Feed | Automatic; 1.75" (4.4 cm) stack of standard business envelopes |
| Maximum thickness | 3/16" (0.5 cm) |
| Power | 115/230 V |
| Dimensions | 10.5" L × 13.8" W × 5.8" H (27.0 × 35.0 × 15.0 cm) |
| Weight | 11.0 lb (5.0 kg) |
Martin Yale's spec table gives the stack as "up to 44 sheets".
Values as published by the manufacturer, in its own units. Fields the manufacturer doesn't state are left out rather than estimated. Shown without scores or rankings.
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