Kobra 400 WB

The Kobra 400 WB solves a specific problem: people will not stand at a shredder feeding sheets. Built on the same 400 chassis and the same P-4 cross-cut head as the 400 C4, the WB adds a tall bulk hopper above the machine. Staff tip the contents of a wastebasket in, close the lid, and mechanical revolving flaps meter the load down to the cutting knives without an operator present. The conventional 400 mm throat is still there for stapled files that need feeding by hand.

Key Features

• Bulk hopper with revolving flaps. Empty a whole wastebasket in one movement. The flap mechanism releases paper to the cutters at a rate the motor can absorb instead of jamming it in a slug.
• Handles crumpled paper. Kobra rates the WB for crumpled paper specifically — the material that defeats a normal throat because it will not lie flat.
• Same P-4 security as the 400 C4. 3.9 x 40 mm particles, 156 mm², comfortably inside the DIN 66399 P-4 limit of 160 mm². Convenience does not cost you security level.
• Conventional throat retained. The 400 mm feed slot is still available for stapled documents, card and optical media that should not go into the hopper loose.
• 24 hour continuous duty motor. 2,100 W with no thermal duty cycle, which matters on a machine that is loaded in large batches rather than sheet by sheet.
• 53 gallon bin under a taller frame. The WB stands 64.2 in tall to accommodate the hopper, but the cabinet footprint is identical to the rest of the 400 family.

Specifications

What's in the Box

Machine assembled with hopper fitted, 200 litre steel waste cabinet, 115 V power cord. Waste bags are not included, and neither is shredder oil — a cross-cut head fed in bulk needs oiling on a routine schedule, so order a supply with the machine.

Who Should Buy This — and Who Should Not

Buy it if your shredding is centralised and arrives by the basket: a bank branch, a clinic front office, a school administration block, any site where a cleaner or an assistant empties confidential waste bins into one machine at the end of the day. The hopper is what makes that workflow possible without someone babysitting the throat, and the P-4 head means the output still satisfies a serious retention policy.

Do not buy it if you feed documents by hand anyway — you would be paying a substantial premium and taking a machine over five feet tall for a hopper you never use. The Kobra 400 C4 gives identical security, identical throat, identical bin, in a 36.5 in cabinet for considerably less. It is also the wrong tool for continuous industrial destruction: if you are processing hundreds of pounds an hour, the conveyor-fed Kobra 430 TS models or the Kobra Cyclone are the right class of machine. And if you need unattended shredding of neat stacks rather than loose waste, the autofeed Kobra AF.1 line does that job in far less space.