# Sun Joe CJ603E 15-Amp Electric Silent Wood Chipper/Shredder vs Earthquake K33 301cc Chipper Shredder (Viper Engine): specs and price compared

A sourced, side-by-side comparison of the Sun Joe CJ603E 15-Amp Electric Silent Wood Chipper/Shredder (Sun Joe) and Earthquake K33 301cc Chipper Shredder (Viper Engine) (Earthquake (Ardisam)) among wood chippers. Sun Joe CJ603E 15-Amp Electric Silent Wood Chipper/Shredder is the cheaper of the two at $199.99.

## Side by side

| Spec | Sun Joe CJ603E 15-Amp Electric Silent Wood Chipper/Shredder | Earthquake K33 301cc Chipper Shredder (Viper Engine) |
| --- | --- | --- |
| US price | $199.99 | $1099.99 |
| Brand | Sun Joe | Earthquake (Ardisam) |
| Max branch diameter (in) | 1.7 | 3 |
| Engine power | 15A electric, 120V/60Hz | 301cc 4-cycle Viper gas, 13.28 ft-lb torque @ 2500 RPM |
| Reduction ratio | 21:1 | 20:1 |
| Chute hopper type | Top-load safety hopper with interlocking lid | Steel chipping cone (3 in.) + top hopper (0.5 in. shredding) |
| Collection bag capacity | — | 2 bushel (Dock-and-Lock bag) |
| Weight (lb) | 38.6 | — |
| Wheel mobility | 7 in. wheels for portability | 11 in. airless (never-flat) wheels |

## Key differences

- Max branch diameter (in): Sun Joe CJ603E 15-Amp Electric Silent Wood Chipper/Shredder 1.7 vs Earthquake K33 301cc Chipper Shredder (Viper Engine) 3
- Engine power: Sun Joe CJ603E 15-Amp Electric Silent Wood Chipper/Shredder 15A electric, 120V/60Hz vs Earthquake K33 301cc Chipper Shredder (Viper Engine) 301cc 4-cycle Viper gas, 13.28 ft-lb torque @ 2500 RPM
- Reduction ratio: Sun Joe CJ603E 15-Amp Electric Silent Wood Chipper/Shredder 21:1 vs Earthquake K33 301cc Chipper Shredder (Viper Engine) 20:1
- Chute hopper type: Sun Joe CJ603E 15-Amp Electric Silent Wood Chipper/Shredder Top-load safety hopper with interlocking lid vs Earthquake K33 301cc Chipper Shredder (Viper Engine) Steel chipping cone (3 in.) + top hopper (0.5 in. shredding)
- Wheel mobility: Sun Joe CJ603E 15-Amp Electric Silent Wood Chipper/Shredder 7 in. wheels for portability vs Earthquake K33 301cc Chipper Shredder (Viper Engine) 11 in. airless (never-flat) wheels

## Sources

- Sun Joe CJ603E 15-Amp Electric Silent Wood Chipper/Shredder: https://www.amazon.com/Sun-Joe-CJ603E-1-7-Inch-Diameter/dp/B077YDZ725 (amazon.com, verified 2026-08-09)
- Earthquake K33 301cc Chipper Shredder (Viper Engine): https://www.getearthquake.com/products/k33-chipper-shredder (getearthquake.com, verified 2026-08-09)

Canonical: https://frontdeskreview.com/gear/wood-chippers/sun-joe-cj603e-vs-earthquake-k33/
Cite: Per The Front Desk Review, Sun Joe CJ603E 15-Amp Electric Silent Wood Chipper/Shredder ($199.99) vs Earthquake K33 301cc Chipper Shredder (Viper Engine) ($1099.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/wood-chippers/sun-joe-cj603e-vs-earthquake-k33/
License: CC BY 4.0.