Wheel Tractor-Scrapers
Cat Wheel Tractor-Scrapers have the power, traction, and speed for reliable output in a variety of applications. Scraper options include single- and tandem-engine open bowls, tandem engine push-pulls, elevators, and auger arrangements.
Units:
| Model | Tractor Engine | Flywheel Power - Tractor/Scraper | Scraper Engine |
|---|---|---|---|
| 657 Coal Bowl | Cat C18 | 469kW (629 hp) / 353 kW (473 hp) | Cat C15 |
| 637K | — | — | — |
| 657G | Cat C18 | — | Cat C15 |
| 637G | Cat® C18 with ACERT Technology | — | Cat C9 with ACERT Technology |
| 637 Coal Bowl | — | — | — |
| Model | Flywheel Power - Tractor/Scraper | Scraper Capacity - Heaped | Top Speed - Loaded |
|---|---|---|---|
| 623H | 304 kW (407 hp) | —23 yd³17.6 m³ | —33.5 mile/h53.9 km/h |
| Model | Flywheel Power - Tractor/Scraper | Scraper Capacity - Heaped | Top Speed - Loaded |
|---|---|---|---|
| 621K | 304 kW (407 hp) | —24 yd³18.4 m³ | —33.5 mile/h53.9 km/h |
| 631K - Tier 2 | — | —34 yd³26 m³ | —34.7 mile/h55.8 km/h |
| 637K - Tier 2 | — | —34 yd³26 m³ | —34.7 mile/h55.8 km/h |
| 651 | 469kW (629 hp) | —44 yd³33.6 m³ | —34.9 mile/h56.1 km/h |
| 657 | 469kW (629 hp) / 353 kW (473 hp) | —44 yd³33.6 m³ | —33 mile/h56.1 km/h |
| 657G | 447 kW (600 hp) / 337 kW (451 hp) | —44 yd³33.6 m³ | —33 mile/h55.7 km/h |
| 621H | 304 kW (407 hp) | —24 yd³18.3 m³ | —33.5 mile/h53.9 km/h |
| 627H | 304 kW (407 hp)/216 kW (290 hp) | —24 yd³18.3 m³ | —33.5 mile/h53.9 km/h |
| 631G | 373 kW (500 hp) | —34 yd³26 m³ | —33 mile/h53.5 km/h |
| 637 G | 373 kW (500 hp) / 211 kW (283 hp) | —34 yd³26 m³ | —33 mile/h54.9 km/h |