
Before you specify
Frequently Asked Questions
Is 4 x 40 mm genuinely P-4?
Yes, but at the boundary. DIN 66399 sets P-4 at a maximum particle area of 160 mm². 4 x 40 mm is exactly 160 mm², so it qualifies with nothing to spare. That is normal across the industry and it is a legitimate P-4 rating, but if your compliance team prefers headroom, the Destroyit 2265 cuts 3 x 25 mm (75 mm²) at P-4 and the 2445 P-5 cuts 2 x 15 mm (30 mm²).
How many sheets can I actually feed at once?
MBM rates 11 to 13 sheets on 70 g/m² paper and states on its own spec sheet that realistic throughput can be as low as half the theoretical figure. With standard 20 lb US office paper, stapled documents and the occasional fold, plan on 7 to 10 sheets as a comfortable working stack. Feeding to the rated maximum every time is the fastest way to trigger the auto-reverse and slow yourself down.
Can it shred credit cards?
Yes. MBM rates the cross-cut 2445 models for credit cards as well as staples and paper clips. Feed cards singly rather than mixed into a stack of paper, and expect the card to come out in P-4 sized fragments. What it will not take is CDs, DVDs or any rigid optical media — those are not listed for this machine. Feeding them risks the shafts and the lifetime warranty that covers them.
How often will the 9-gallon bin need emptying?
P-4 cross-cut waste at 4 x 40 mm packs somewhat more densely than finer P-5 confetti, so a full 9-gallon bin corresponds very roughly to 800 to 1,000 sheets depending on how it settles. A two-person office destroying a folder each per day will typically empty it once a week. The machine cuts power automatically when the bin is full or the cabinet door is open, so you will not overfill it unnoticed.
Does it fit under a desk?
It depends on your desk. The cabinet is 25 inches tall, 15.5 inches wide and 11.75 inches deep, which clears most standard desks with a 27 to 29 inch knee height but not a lowered or height-adjustable one at its bottom setting. It is not on castors, and at 53 lb it is not something you will reposition casually. Measure before assuming it will live under the workstation rather than beside it.
Is this quiet enough for an open-plan office?
MBM does not publish a dB(A) figure for the 2445, so we cannot quote one. What we can say is that it is a 0.5 HP single-phase motor in a wooden cabinet, which is structurally quieter than a plastic-shelled consumer shredder, and the photocell means it only runs while paper is passing rather than idling. If a verified noise number is a purchase requirement, ask us and we will request it from MBM rather than estimate.