Overview
Cat’s 637 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.
Key Features
More Comfort. More Performance. More Versatility.
Increased Comfort
Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long
Up To 12% More Productivity
Improvements in fuel efficiency and the new APECS transmission controls deliver more productivity in most applications
Additional Safety
New safety features help operators be more productive and work more efficiently all day long
Specifications
| Scraper Capacity - Struck | 24 yd³ |
|---|---|
| Width - Cut | 11.5 ft |
| 180° Curb-to-Curb Turning Width | 40.12 ft |
| Fuel Tank Refill Capacity - Scraper | 370 gal (US) |
| Scraper Capacity - Heaped | 34 yd³ |
| Overall Width | 12.93 ft |
| Top Speed - Loaded | 34.7 mile/h |
| Overall Shipping Height | 13.62 ft |
| Maximum Depth of Cut | 17.7 in |
| Tires - Tractor | 37.25R35**E3 |
| Maximum Depth of Spread | 21.1 in |
| Tires - Scraper | 37.25R35**E3 |
| Rated Load | 37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons) |
| Rated Engine RPM - Tractor | 1900 r/min |
|---|---|
| Engine Model - Scraper | Cat C9.3 |
| Engine Model - Tractor | Cat C18 |
| Flywheel Power - Scraper | 290 hp |
| Rated Engine RPM - Scraper | 2150 r/min |
| Flywheel Power - Tractor | 570 hp |
| Emissions | Cat C9.3 and C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV emission standards. |
| Flywheel Power - Tractor/Scraper | 570 hp |
|---|
| Scraper Capacity - Heaped | 34 yd³ |
|---|
| Top Speed - Loaded | 34.7 mile/h |
|---|
| Hydraulic System | 37.5 gal (US) |
|---|---|
| Crankcase - Tractor | 13.7 gal (US) |
| Diesel Exhaust Fluid - Tractor | 8 gal (US) |
| Diesel Exhaust Fluid - Scraper | 5.8 gal (US) |
| Transmission System - Scraper | 12.9 gal (US) |
| Fuel Tank | 370 gal (US) |
| Cooling System - Scraper | 16.1 gal (US) |
| Crankcase - Scraper | 6.5 gal (US) |
| Cooling System - Tractor | 19.8 gal (US) |
| Transmission System - Tractor | 29 gal (US) |
| Front of Tractor to Front Axle | 142.2 in |
|---|---|
| Axle to Vertical Hitch Pin | 20 in |
| Wheel Base | 346.8 in |
| Rear Axle - Rear of Machine | 90.2 in |
| Length - Maximum (Push-Pull) | 655.1 in |
| Width - Overall Machine | 155 in |
| Width - Rear Tire Centers | 96.9 in |
| Extended Push Block (Push-Pull) | 108 in |
| Width - Outside Rear Tires | 143.2 in |
| Width - Inside of Bowl | 134 in |
| Height - Scraper Blade Maximum | 20 in |
| Ground Clearance - Tractor | 26.1 in |
| Width - Tractor | 137.8 in |
| Length - Overall Machine - Standard | 597 in |
| Height - Overall Shipping | 163.2 in |
| Height - Top of Cab | 147 in |
| Operating Weight - Empty | 114950 lb |
|---|---|
| Overall Length | 49.34 ft |
| Overall Length - With Bail Down | 54.59 ft |
|---|---|
| Operating Weight - Empty | 119060 lb |
| Exterior Sound Level | The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A). |
|---|---|
| ROPS/FOPS | ROPS/FOPS meet “ISO Standards.†|
| Reverse Alarm | ISO 9533:2010 |
|---|---|
| Brakes | ISO 3450:2011 |
| 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) |
| Seat Belt | SAE J386:FEB2006 |
| Steering System | ISO 5010:2007 |
| Transmission Gear - Reverse | 6.2 mile/h |
|---|---|
| Transmission Gear - Second | 6.2 mile/h |
| Transmission Gear - First | 3.4 mile/h |
| Transmission Gear - Seventh | 25.7 mile/h |
| Transmission Gear - Sixth | 19 mile/h |
| Transmission Gear - Fourth | 10.5 mile/h |
| Transmission Gear - Third | 7.7 mile/h |
| Transmission Gear - Fifth | 14.1 mile/h |
| Transmission Gear - Eighth | 34.7 mile/h |
| Bail Lower | 2.1 s |
|---|---|
| Apron Lower | 3.8 s |
| Apron Raise | 4 s |
| Bowl Lower | 3.5 s |
| Bowl Raise | 3.5 s |
| Ejector Retract | 8.5 s |
| Bail Raise | 1.5 s |
| Ejector Extend | 8.5 s |
