
Before you specify
Frequently Asked Questions
Is the KOBRA 240.1 C2 P-5 or P-4?
P-5. KOBRA rates it P-5 T-5 E-4 F-2 under ISO/IEC 21964 (DIN 66399). The arithmetic supports it: a 1.9 x 15 mm particle is 28.5 mm², and P-5 allows up to 30 mm². Some listings quote the cut as 3/32 x 5/8 inch, which is KOBRA's own rounded imperial conversion of the same 1.9 x 15 mm figure, and a few retailers have wrongly published it as a P-4 machine on the strength of that rounding.
Do I still have to oil it?
Not routinely. The 240.1 C2 has a built-in automatic oiling system that lubricates the cutting head during normal operation, which is the main reason to choose it over a manually oiled micro-cut machine. You do have to keep the reservoir topped up with genuine shredder oil, and the manual gives the interval. Never substitute aerosol lubricant or vegetable oil; both leave a residue that binds paper dust to the cutters.
Can it shred CDs, DVDs or hard drives?
No. KOBRA lists the C2 for paper, credit cards, smart cards and film only — there is no O rating for optical media. If you need discs destroyed on the same machine, the KOBRA 240.1 C4 carries an O-3 rating at P-4. Hard drives need a dedicated media destroyer; no paper shredder in the 240 range will take one.
How many people can share one before it bottlenecks?
At 12 sheets a pass this is realistically a machine for a team of five to twelve doing normal daily shredding, or a smaller high-security group. The 4/5 HP motor is rated for 24 hour continuous duty so it will not overheat, but the queue will build if a whole floor tries to use it. For heavier departmental loads at a slightly lower security level, the C4 takes 17 sheets.
Can I leave staples and paper clips in?
KOBRA specifies carbon hardened cutting knives unaffected by staples and clips on the 240.1 chassis, so ordinary staples and paper clips are acceptable. Even so, on a P-5 head it is worth removing them where it is easy to do so — micro-cut teeth are finer than strip-cut teeth and metal accelerates wear. Binder clips and ring mechanisms should always be removed.
How often will the 10.5 gallon bin need emptying?
Micro-cut waste is dense and settles well, so the C2 fills its bin more slowly per sheet than a strip-cut machine does. KOBRA does not publish a sheets-per-fill figure. For a small department shredding a few hundred sheets a day, weekly emptying is realistic. The safety stop halts the head when the door is opened or the bin reads full.
Is it noisy?
58 to 61 dB(A), which is louder than the strip-cut models on the same chassis at 55 dB(A). Micro-cut heads work harder and that shows up as noise. It is still acceptable in a copy room or a corridor alcove; it is more intrusive directly beside a desk in open plan.