
Before you specify
Frequently Asked Questions
How is the SS4 different from the 310 TS SS5?
Only the cutting head. The SS4 cuts 3.8 mm strips and takes up to 39 sheets of 70 g/m² paper; the SS5 cuts 5.8 mm strips and takes up to 47. Chassis, 13-inch throat, 40-gallon bin, 1.5 HP motor, 58 dB(A) noise, dimensions and weight are identical. Both are rated P-2 under DIN 66399, so choosing the SS4 buys you a finer strip but no change in security classification.
Do CDs go through the same knives as paper?
No, and that is a genuine advantage of the 310 TS design. Discs and cards feed into a second, dedicated cutting unit with its own opening and its own collection bin, so plastic fragments never mix with paper waste and never blunt the paper knives. The optical media unit is rated O-1 T-2 E-2, which is a low destruction class — adequate for retired backup discs, not for classified optical media.
Is this machine NSA approved?
No. The 310 TS SS4 is not on the NSA/CSS Evaluated Products List and Kobra makes no NSA claim for it. NSA/CSS Specification 02-01 requires a maximum 1 × 5 mm particle plus an EPL listing; a 3.8 mm strip is nowhere near that. The NSA-listed machine on this chassis is the KOBRA 310 TS HS-6 AO, which cuts 0.8 × 5 mm at P-7.
How many people can share it before it becomes a bottleneck?
At 20 ft/min and up to 39 sheets a pass with no duty cycle, one 310 TS SS4 comfortably serves a floor of roughly 30–50 people doing routine daily shredding. The limit is rarely the motor — it is the 40-gallon bag, and the queue that forms at bag-change time. Two smaller machines on separate floors usually beat one shared machine for perceived speed.
Will legal and tabloid sheets fit?
Yes. The throat is 13 inches, so US legal (8.5 in. wide) and tabloid fed 11-inch edge first both pass. Wide continuous-form printouts over 13 inches will not. Folding wide stock to fit works but consumes several sheets' worth of capacity per fold, so the effective throughput drops sharply.
Does it need oiling?
The SS4 has no automatic oiler. Strip-cut heads tolerate a light maintenance regime far better than micro-cut heads, but oiling the cutting knives periodically — more often if you shred a lot of stapled or glossy stock — keeps throughput up and reduces jams. If you want oiling handled for you, the CC2, CC4 and HS-6 versions of this chassis ship with an integrated automatic oiling system.