ore factories, warehouses, and logistics centers are facing the same problem: how to deal with piles of used cardboard boxes. Traditionally, they were either stacked up, sold to recyclers at a low price, or simply thrown away. But now, shredding cardboard on-site has become a smarter, more cost-effective solution.

So, what kind of shredder is best for cardboard?

For most packaging waste, a twin-shaft shredder is the ideal machine. Unlike single-shaft shredders that rely on pushing force and screens, twin-shaft shredders use two interlocking rotating blades that “bite and tear” cardboard into strips or flakes. This allows for fast, efficient crushing without clogging, even when the cardboard is humid, printed, or has staples.

Compared to compact baling machines, shredders take up less space and require less manual handling. The shredded cardboard can be reused as packing filler, compressed into pellets, or easily stored for recycling. Some factories even use shredded cardboard to protect their own products during shipping.

Choosing the right shredder depends on:

• The amount of waste per day (light-duty or continuous operation)
• Size of cardboard (flat boxes, folded cartons, laminated board)
• Output size required (coarse strips or finer flakes)
• Space and budget available

For example, our model SSJ-600 and SSJ-800 are popular for small and medium-size warehouses. They offer compact size, 15–30 kW motor, easy maintenance, and can process up to 1 ton of cardboard per hour.

If your factory wants to reduce waste handling costs, improve cleanliness, and even turn cardboard into usable resource, investing in a proper shredder may be a smart move.