Desktop envelope opener (slitter) · Formax

Formax FD 452

Speed: Up to 300 envelopes per minute · Maximum thickness: Up to 4 mm

Current

Listed on the manufacturer's website (source, as of Oct 18, 2026)

Amazon link (affiliate). We confirmed this Amazon listing is the Formax FD 452 on Oct 18, 2026. Reviews are Amazon customers' own and are not shown or summarized here.

SpeedUp to 300 envelopes per minute

Maximum thicknessUp to 4 mm

Cutting methodSlits one side of the envelope

Envelope sizes5.5"-13" H (140-330 mm) × 3.5"-10.2" W (89-259 mm); #10s to 10" × 13" flats

Where to buy

AmazonSells this model · confirmed Oct 18, 2026Check price · Amazon

AmazonAnother listing for this model · confirmed Oct 18, 2026Check price · Amazon

Authorized dealersListed by the manufacturerFind a dealer · Maker's site

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	Formax
Model	FD 452
Type	Desktop envelope opener (slitter)
Cutting method	Slits one side of the envelope
Speed	Up to 300 envelopes per minute
Feed	Spring-loaded push arm; catch tray holds up to 80 #10 envelopes; resettable LCD counter
Envelope sizes	5.5"-13" H (140-330 mm) × 3.5"-10.2" W (89-259 mm); #10s to 10" × 13" flats
Maximum thickness	Up to 4 mm
Power	115 VAC 50/60 Hz
Dimensions	33" L × 15" W × 9" H (84 × 38 × 23 cm)
Weight	18 lb (8 kg)
Options	402 Series jogger

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.