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Best Heavy-Duty Cardboard Shredder 2020 Detailed Review

Best Heavy-Duty Cardboard Shredder 2020 Detailed Review.

Best Heavy-Duty Cardboard Shredder: These days, every respectable office has a paper shredder. They’re essential for just about every type of business. For example, suppose you run a retail business. It doesn’t matter if you’re selling tchotchkes to tourists on the Atlantic City boardwalk 


If you’re dealing with any kind of customer credit card information, you need to protect that. A paper shredder gives you a quick and easy way to protect your customers. It will also keep you safe from potential lawsuits. For a doctor’s office, or for anyone handling tax information, this is even more vital. Losing track of customer data could get you into some serious legal trouble. 

But what if you need to get rid of large amounts of paper? A single-sheet shredder isn’t going to fit the bill. This is even more true if you need to dispose of cardboard, credit cards, DVDs, or other more robust media. The last thing you want to do is jam up your paper shredder with a bunch of thick, solid material. 

In that case, you’re going to need a heavy-duty cardboard shredder. These devices are a bit pricier and bulkier than normal paper shredders, but they’re far more powerful. 

Bonsaii EverShred Pro 3S30 

Bonsaii EverShred Pro 3S30 

First up on our list is the Bonsaii EverShred Pro 3S30. This is an office-sized machine that’s still capable of handling a large workload. It measures 24 inches high, 12 inches wide, and 16 inches deep. It also has a slick design. Available in black or silver-grey, it matches just about any office décor. 

At 38.6 pounds, it’s a bit heavy for the size. However, this is a side effect of the powerful motor and metal shredding gears. You just won’t get the same reliable performance out of a machine with plastic interior parts. And the more metal you have, the more weight you’re going to be dealing with.

Not only that, but there are four removable casters that make the unit very portable. Snap them in if you need them, or leave them off to save a few inches of height. 

Performance and Capacity 

The Bonsaii EverShred Pro 3S30 is rated to handle 18 sheets of letter-sized paper simultaneously. It can also handle individual sheets of cardboard. Moreover, it can manage CDs, credit cards, and even documents with staples. Pretty much any sensitive data you want to shred will be easy to handle.

Regardless of what you’re shredding, you won’t have to worry about security. The 3S30 shreds paper down to 5/32 x 1 3/8-inch rectangles. Even an experienced forensic investigator would have a hard time reassembling such fine pieces. Your average identity thief won’t have a prayer of recovering any sensitive data. 

Kensington OfficeAssist M200 Micro-Cut Shredder

Kensington OfficeAssist M200 Micro-Cut Shredder 

Kensington is an all-around office supply company, best known for accessories like mice and docking stations. But with their expertise in electronics, they’re well-positioned to develop a quality shredder. The Kensington OfficeAssist M200 Micro Cut Shredder represents their best effort to date.

At first glance, it looks similar to the 3S30. However, it’s a bit more compact, measuring 16.9 inches high, 12.3 inches wide, and 17.6 inches deep. It’s also a bit lighter, tipping the scales at only 24.9 pounds. This is still fairly heavy for the size, though. You don’t have to worry about cheap plastic parts interfering with the performance. 

Performance and Capacity 

The Kensington OfficeAssist M200 Micro Cut Shredder can handle up to 130 sheets of paper simultaneously. This is a massive capacity, designed to tear through long documents with ease. Paperclips, staples, and other everyday fasteners will run through with no issues.

You can also shred credit cards and, yes, cardboard. All in all, you’re looking at an all-purpose shredder that handles any everyday need. Unfortunately, this is hampered by a 10-minute run time rating.

After running for 10 minutes, the M200 requires 30 minutes of cooldown time. For intermittent use, this is a non-issue. However, if you’re trying to use the shredder more or less constantly, it’s a crippling limitation. 

HSM ProfiPack C400 Single-Layer Cardboard Converter 

HSM ProfiPack C400 Single-Layer Cardboard Converter

The HSM ProfiPack C400 Single-Layer Cardboard Converter is a much more powerful unit. It’s also correspondingly bulkier than the last two machines we’ve looked at. It’s significantly more robust, measuring just over 2 feet in width, and 18 inches in height and depth.

It also boasts all-metal construction, which makes it exceptionally durable. Of course, this comes with a correspondingly high weight. At 82 pounds, you definitely won’t want to move it around too often. 

Performance and Capacity 

The HSM ProfiPack is perfectly capable of handling virtually any material. That said, it’s really not designed as a “shredder”, per se. As the name says, it’s actually a “converter”. It’s designed primarily to turn a sheet of corrugated cardboard into a perforated sheet. As a result, paper would still be perfectly readable. Similarly, it’s a bit big to use just for credit cards. 

Final Verdict 

Each of these shredders has its own costs and benefits. Let’s start with the first one we looked at, the Bonsaii EverShred Pro 3S30. This is an office-sized shredder, but it’s quite robust for the size. With the ability to handle 18 sheets of paper at once, it can tear through large documents very quickly. A 240-minute continuous operation rating means that it’s useful for long sessions.  

The Kensington OfficeAssist M200 Micro-Cut Shredder has a similar exterior design. It’s slightly smaller than a mini-fridge, and can still handle a lot of material. With the ability to shred 130 pages at once, it’s an excellent choice for large documents. It can also handle cardboard and plastic for solid all-around performance.

That said, it can only run for 10 minutes before it requires a 30-minute cooldown period. This can be a limiting factor if you need to do a lot of document disposal in a short timeframe. 

The last shredder we looked at was the HSM ProfiPack C400 Single-Layer Cardboard Converter. This is a more powerful beast, designed specifically for corrugated cardboard. If you need to dispose of boxes on a regular basis, it’s an ideal choice.

Of course, it can still handle paper and plastic. But considering the price point, you can get those jobs done just fine at a much lower cost. That said, the C400 is a very powerful machine.