Before you specify
Frequently Asked Questions
Is 3.9 x 40 mm really a P-4 cut?
Yes. The particle area is 156 mm2 against the DIN 66399 P-4 ceiling of 160 mm2. Be careful with imperial approximations of this cut: the commonly quoted 3/16 in x 1-1/2 in works out to roughly 181 mm2, which would place it outside P-4 altogether. Kobra's own datasheet gives the metric figure and states P-4 O-3 T-4 E-3 F-1, so the metric value is the one to rely on for compliance purposes.
How is this different from the 300.1 C4?
Same cutting head, bigger everything else. The 300.2 uses a 900 W motor against 600 W and a 150-litre cabinet against 110 litres, and stands 111 cm tall against 92 cm. Sheet capacity rises from 20 to 22 up to 25 to 27 at 70 g/m2. If your department clears archive boxes rather than a daily handful of documents, the extra motor and bin are what stop the machine becoming the bottleneck.
How many people can share one?
As a working guide, a 300.2 C4 supports a floor of roughly twenty to forty office staff producing normal daily volumes of paper. There is no duty cycle to plan around because the motor is rated for 24-hour continuous running, so the constraints are the 25 to 27 sheet pass rate and the 150-litre bin. Sustained multi-box purges are where this model earns its price over the 300.1 C4.
Does the 300.2 C4 come with the automatic oiler?
The US-market SKU for this listing is sold as the Auto Oiler version (Kobra article 99.931), and US distributor listings for that article describe it as the auto-oiler build. Kobra's European catalogue treats the AO oiling system as a build option on the same chassis, so the two markets describe the machine differently. Because a cross-cut head that runs dry wears fast, this is worth pinning down: ask us to confirm in writing that the unit allocated to your order carries the integrated oiler before you place it.
How often will the 40-gallon bin need emptying?
For most departments, weekly. Cross-cut waste settles more densely than strip-cut waste, and 150 litres is a large cabinet, so a team destroying a few hundred pages a day will not be emptying it daily. The fill sensor stops the machine when the bin reads full, which prevents the classic problem of shredding into an overflowing cabinet. Waste bags are not included with the machine, so order a supply sized for a 150-litre bin.
Will Legal and Tabloid paper fit?
Yes. The throat is 12.2 in (310 mm), which takes US Letter and Legal comfortably and Tabloid at 11 x 17 in fed on its 11 in edge. A3 fits fed short edge first. Published sheet capacities are measured on A4, so reduce the stack when feeding larger sheets rather than assuming the same count holds. Do not fold sheets to make them fit; a fold behaves like extra thicknesses at the knives.
Is the 300.2 C4 NSA approved?
No. NSA/CSS Specification 02-01 requires a particle no larger than 1 mm x 5 mm and the specific model has to appear on the NSA Evaluated Products List for Paper Shredders. The 300.2 C4 cuts at 3.9 x 40 mm and is rated P-4, so it does not meet either condition and must not be used to destroy classified national security information. Kobra's models that are on the current EPL include the 300 HS-6 and the 270 TS HS-6, both of which cut 0.8 x 5 mm.
What warranty covers this machine in the US?
We do not publish a US warranty term on this page because Kobra's US warranty is set by the importing distributor rather than printed on the factory datasheet. Kobra's UK distributor publishes two years on the machine and ten years on the cutting blades (parts only) for this chassis, which is a reasonable guide to the factory position but not a US commitment. Ask us for the warranty document that ships with your unit before you order, and we will send the current terms in writing.