
Before you specify
Frequently Asked Questions
Is 0.78 x 11 mm P-5 or P-6?
P-6. This gets misreported often. DIN 66399 P-6 requires a particle area of 10 mm² or less and a width of 1 mm or less; 0.78 x 11 mm gives 8.6 mm² at 0.78 mm wide, so it meets both tests. P-5 allows up to 30 mm² and has no such width requirement, which is why a 1.9 x 15 mm machine is P-5 despite its particles being physically longer in one dimension.
Is this machine NSA approved?
No. NSA/CSS 02-01 requires a maximum particle of 1 mm x 5 mm and requires the specific model to appear on the NSA/CSS Evaluated Products List. This cut is 11 mm long, more than twice the permitted length, and this configuration is not on the January 2026 list. The SECURIO B24 does appear on that list, but only in the 1 x 5 mm configuration sold here as the 1/32" x 3/16" model.
How many sheets can it take?
Six sheets of 80 g/m² paper, per HSM's datasheet for article 1785111. That is the correct expectation to set. HSM's range brochure shows a higher figure because it measures with 70 g/m² paper. In American terms, six sheets of 20 lb copier paper is a fair working assumption, and a stapled six-page document is about the practical limit for a single pass.
Can it shred credit cards or CDs?
No. The cutting head is rated F-3 and P-6 - film and paper only, with no O class for optical media and no T class for magnetic-stripe cards. A 0.78 mm micro-cutter is not built for rigid plastic, and forcing cards or discs through it risks damaging the rollers in a way that would not be covered. Keep a separate machine or service for media destruction.
What is the warranty on the cutting rollers?
HSM's lifetime warranty on the induction-hardened solid steel cutting rollers applies to its P-2 to P-5 machines. This is a P-6 machine, so that lifetime cover does not extend to it. We have not been able to verify a specific US machine warranty term for the B24 chassis and will not quote one; ask us before ordering if the warranty period is decisive for your purchase.
Why does it come with an automatic oiler?
Because a 0.78 mm cutting head is unforgiving about lubrication. Paper dust packs between cutting discs far faster at P-6 than at P-4, and an unoiled machine will drop from six sheets to three or four and begin jamming. The external oiler doses the cutting block automatically so the maintenance actually happens. It is the difference between a machine that ages well and one that becomes an irritation.
How often will I empty the bin?
HSM rates the 35-litre bin at approximately 339 sheets' worth of shredded material at this cut size. Because the machine only takes six sheets a pass, feeding is the bottleneck rather than bin capacity for most users - you will spend more time at the throat than at the bin. The display indicates a full bin and the machine stops rather than compacting waste into the cutting head.