637K Wheel Tractor-Scraper
Cat’s 637K Wheel Tractor-Scraper is engineered to conquer challenges operators face worldwide. With its strength and durability, it works in some of the most difficult conditions and materials one can find.
Tractor Engine
- Flywheel Power - Tractor/Scraper
- 570
Scraper Bowl
- Scraper Capacity - Heaped
- 34 yd³
Transmission
- Top Speed - Loaded
- 34.7 mile/h
Engine
- Emissions
- Cat C9.3 and C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV emission standards.
- Flywheel Power - Tractor
- 570 HP
Dimensions
- Width - Outside Rear Tires
- 143.2 in
- Width - Overall Machine
- 155 ft
- Width - Tractor
- 137.8 ft
- Width - Inside of Bowl
- 134 ft
- Height - Overall Shipping
- 163.2 ft
- Height - Top of Cab
- 147 ft
- Ground Clearance - Tractor
- 26.1 ft
- Front of Tractor to Front Axle
- 142.2 ft
- Axle to Vertical Hitch Pin
- 20 ft
- Height - Scraper Blade Maximum
- 20 ft
- Wheel Base
- 346.8 ft
- Rear Axle - Rear of Machine
- 90.2 ft
- Length - Overall Machine - Standard
- 597 in
- Width - Rear Tire Centers
- 96.9 in
Service Refill Capacities
- Fuel Tank
- 370 gal (US)
- Crankcase - Tractor
- 13.7 gal (US)
- Cooling System - Scraper
- 16.1 gal (US)
- Hydraulic System
- 37.5 gal (US)
- Crankcase - Scraper
- 6.5 gal (US)
- Cooling System - Tractor
- 19.8 gal (US)
- Diesel Exhaust Fluid - Scraper
- 5.8 gal (US)
- Transmission System - Scraper
- 12.9 gal (US)
- Transmission System - Tractor
- 29 gal (US)
- Diesel Exhaust Fluid - Tractor
- 8 gal (US)
General
- 180° Curb-to-Curb Turning Width
- 40.12 ft
- Maximum Depth of Spread
- 21.1 in
- Top Speed - Loaded
- 34.7 mile/h
- Rated Load
- 37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
- Maximum Depth of Cut
- 17.7 in
- Overall Shipping Height
- 13.62 ft
- Scraper Capacity - Struck
- 24 yd³
- Scraper Capacity - Heaped
- 34 yd³
- Fuel Tank Refill Capacity - Scraper
- 370 gal (US)
- Tires - Scraper
- 37.25R35**E3
- Overall Width
- 12.93 ft
- Tires - Tractor
- 37.25R35**E3
- Width - Cut
- 11.5 ft
Cab
- ROPS/FOPS
- ROPS/FOPS meet “ISO Standards.”
- Exterior Sound Level
- The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A).
Travel Speeds - Runout
- Transmission Gear - Third
- 7.7 mile/h
- Transmission Gear - Sixth
- 19 mile/h
- Transmission Gear - Seventh
- 25.7 mile/h
- Transmission Gear - Fourth
- 10.5 mile/h
- Transmission Gear - Reverse
- 6.2 mile/h
- Transmission Gear - Fifth
- 14.1 mile/h
- Transmission Gear - Second
- 6.2 mile/h
- Transmission Gear - First
- 3.4 mile/h
- Transmission Gear - Eighth
- 34.7 mile/h
Implement Cycle Times
- Ejector Retract
- 8.5 s
- Apron Lower
- 3.8 s
- Apron Raise
- 4 s
- Bail Lower
- 2.1 s
- Bowl Raise
- 3.5 s
- Bail Raise
- 1.5 s
- Ejector Extend
- 8.5 s
- Bowl Lower
- 3.5 s
Safety Criteria Compliance Standards
- Reverse Alarm
- ISO 9533:2010
- Falling Object Protective Structure (FOPS)
- ISO 3449:2005 Level II
- Rollover Protection Structure (ROPS)
- ISO 3471:2008 for up to 21 282 kg (46,919 lb)
- Steering System
- ISO 5010:2007
- Seat Belt
- SAE J386:FEB2006
- Brakes
- ISO 3450:2011
