BONSEN S3104 Cross-Cut Paper Shredder 20-Sheet
- Standard Sheet Capacity: 20
- Cut type: Cross Cut
- Capacity: 6.6 gallons
- Operation mode: Manual
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A heavy-duty pick for anyone shredding real volume, with capacity and run-time well above typical home units at this size.
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ASIN: B095RK6PZQModel: S3104Category: Paper Shredders
Overview
Rated for 20 sheets per pass, the Bonsen cross-cut shredder cuts paper into 13/64 by 63/64 inch particles at security level P-4, with a 6.6-gallon bin holding up to 520 sheets. Nitrided steel cutters and a cooling system built for over 60 minutes of continuous use set it apart from typical home shredders.
Where many home shredders cap out at 8 to 10 sheets and a few minutes of run-time, Bonsen positions this one for heavier volume: 20 sheets per pass and over an hour of continuous shredding before overheating becomes a concern. The nitrided steel cutter is the detail that supports that claim, since standard blades wear faster under sustained heavy-duty use. Bonsen states every unit is production tested and backed by a 1-year warranty.
- 20-sheet cross-cut, P-4 security level
- 6.6-gallon bin, up to 520 sheets
- 60+ minutes continuous run-time
- Nitrided steel cutter, anti-jam system
Who it's for
Fits a home office or small business that regularly shreds larger stacks in one sitting, such as clearing out a filing cabinet or handling weekly document disposal. A light, occasional user of a few pages a week would not need this much capacity.
Pros and cons
- 20 sheets per pass with a P-4 cross-cut rating
- Over 60 minutes of continuous run-time before cooling down
- 6.6-gallon bin holds up to 520 sheets
- Anti-jam system built into the paper feed
- Heavier housing than typical home shredders, less portable
- No mention of casters for moving it between rooms
Performance notes
The 20-sheet cross-cut rating and nitrided steel cutter are built for sustained use rather than occasional bursts, and Bonsen's cooling system is what allows more than 60 minutes of continuous shredding without the motor overheating. The thicker housing material adds weight over lighter shredders, which the listing frames as added resistance to wear. Noise is rated at 60 dB or below, and an anti-jam system is built into the 20-sheet feed to reduce interruptions during longer runs.
Specifications
| Brand | Bonsen |
|---|---|
| Model | S3104 |
| Dimensions & fit | |
| Item Weight | 26.57 pounds |
| Item dimensions d x W x h | 15.7 × 10.7 × 21.6 inches |
| Capacity & performance | |
| Standard Sheet Capacity | 20 |
| Capacity | 6.6 gallons |
| Power & efficiency | |
| Power source | Corded electric |
| Construction & materials | |
| Enclosure material | Plastic |
| Color | Black |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Warranty description | 1 year |
| Other details | |
| Cut type | Cross Cut |
| Operation mode | Manual |
| Number Of Items | 1 |
| Mfr Part Number | S3104 |
| Other Special Features Of The Product | Jam Proof, Quiet Operation |
| Builtin Media | Shredder, User Manual |
Frequently asked questions
How many sheets does the Bonsen 20-sheet shredder handle at once?
Up to 20 sheets per pass at a P-4 high security cross-cut level.
How long can the Bonsen shredder run continuously?
The cooling system supports more than 60 minutes of continuous shredding before it needs to cool down.
What is the bin capacity on the Bonsen shredder?
A 6.6-gallon bin that holds up to 520 shredded sheets.