637K Wheel Tractor-Scraper

637K Wheel Tractor-Scraper

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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 ...
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Tractor Engine

Flywheel Power - Tractor/Scraper
570HP

Scraper Bowl

Scraper Capacity - Heaped
34yd³

Transmission

Top Speed - Loaded
34.7mile/h

Dimensions

Front of Tractor to Front Axle
142.2in
Axle to Vertical Hitch Pin
20in
Wheel Base
346.8in
Rear Axle - Rear of Machine
90.2in
Width - Tractor
137.8in
Width - Rear Tire Centers
96.9in
Width - Overall Machine
155in
Width - Outside Rear Tires
143.2in
Width - Inside of Bowl
134in
Length - Overall Machine - Standard
597in
Height - Top of Cab
147in
Height - Scraper Blade Maximum
20in
Height - Overall Shipping
163.2in
Ground Clearance - Tractor
26.1in
Length - Maximum (Push-Pull)
655.1in
Extended Push Block (Push-Pull)
108in

Travel Speeds - Runout

Transmission Gear - Fourth
10.5mile/h
Transmission Gear - First
3.4mile/h
Transmission Gear - Fifth
14.1mile/h
Transmission Gear - Eighth
34.7mile/h
Transmission Gear - Reverse
6.2mile/h
Transmission Gear - Second
6.2mile/h
Transmission Gear - Seventh
25.7mile/h
Transmission Gear - Sixth
19mile/h
Transmission Gear - Third
7.7mile/h

Safety Criteria Compliance Standards

Steering System
ISO 5010:2007
Seat Belt
SAE J386:FEB2006
Rollover Protection Structure (ROPS)
ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Reverse Alarm
ISO 9533:2010
Falling Object Protective Structure (FOPS)
ISO 3449:2005 Level II
Brakes
ISO 3450:2011

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).

Service Refill Capacities

Transmission System - Tractor
29gal (US)
Transmission System - Scraper
12.9gal (US)
Hydraulic System
37.5gal (US)
Fuel Tank
370gal (US)
Diesel Exhaust Fluid - Tractor
8gal (US)
Diesel Exhaust Fluid - Scraper
5.8gal (US)
Crankcase - Tractor
13.7gal (US)
Crankcase - Scraper
6.5gal (US)
Cooling System - Tractor
19.8gal (US)
Cooling System - Scraper
16.1gal (US)

Engine

Flywheel Power - Tractor
570HP
Emissions
Cat C9.3 and C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Engine Model - Scraper
Cat C9.3
Engine Model - Tractor
Cat C18
Flywheel Power - Scraper
290HP
Rated Engine RPM - Scraper
2150r/min
Rated Engine RPM - Tractor
1900r/min

General

Width - Cut
11.5ft
Top Speed - Loaded
34.7mile/h
Tires - Tractor
37.25R35**E3
Tires - Scraper
37.25R35**E3
Scraper Capacity - Struck
24yd³
Scraper Capacity - Heaped
34yd³
Rated Load
37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Overall Shipping Height
13.62ft
Overall Width
12.93ft
Maximum Depth of Spread
21.1in
Maximum Depth of Cut
17.7in
Fuel Tank Refill Capacity - Scraper
370gal (US)
180° Curb-to-Curb Turning Width
40.12ft

Push-Pull

Operating Weight - Empty
119060lb
Overall Length - With Bail Down
54.59ft

Non Push-Pull

Operating Weight - Empty
114950lb
Overall Length
49.34ft

Implement Cycle Times

Apron Lower
3.8s
Apron Raise
4s
Bail Lower
2.1s
Bail Raise
1.5s
Bowl Lower
3.5s
Bowl Raise
3.5s
Ejector Extend
8.5s
Ejector Retract
8.5s

EFFICIENCY THROUGH TECHNOLOGY

  • Load Assist (optional) is designed to help shorten the learning curve of inexperienced operators to ensure consistency and faster loading of material while reducing effort of the operator. Based on the speed of the machine, Load Assist automatically adjusts the cutting edge height to manage wheel slip and to ensure consistent and efficient loading in bulk earthmoving applications.
  • Ground Speed Control sets the desired top speed by the operator if job site conditions or segment speed limits require a speed less than full run out. Machine Speed Limit is intended for use when top speed needs to be limited for longer durations and Ground Speed Control is intended for use when the top speed needs to be reduced for shorter segments or intermediate periods of time. The operator can set the desired top speed and the machine will find the correct gear that works best for the engine and transmission.
  • Fuel Economy Mode is a two part feature when selected. The first part of the feature lowers the transmission shift points allowing shifting to take place at lower rpms to aid in fuel savings. The second part of the Fuel Economy Mode allows the machine when operated at engine rpms less than full throttle to automatically vary the power distribution between the tractor and the scraper.
  • The Payload Estimator (optional) will calculate the payload of the machine in tonnes or tons by measuring the bowl lift cylinder pressures at the beginning of the loaded haul segment. This feature works best when using Sequence Assist. Using Payload Estimator during testing has achieved better than 95% accuracy when compared to actual scale weights. The Payload Estimator feature comes automatically when a machine is ordered with Sequence Assist.
  • Cat Grade Control (optional) intelligently ensures the machine does not cut below grade in the cut area or over fill in the fill area, avoiding rework and moving unnecessary material.
  • Sequence Assist (optional) uses cylinder position sensors to automate bowl, apron and further implement controls throughout the four core work cycles: Dig, Haul, Unload and Return. When utilized this can reduce up to 14 individual operator commands per cycle. Sequence Assist simplifies control over the implements, reduces joystick usage, automatically controls cushion hitch, transmission hold and ejector.
  • Machine Speed Limit is designed to take the place of top gear selection. If the machine top speed needs to be limited the operator can select the top speed through the display or the top speed can be set in ET. This will allow the machine to find the correct gear that works best for the engine and transmission. Allowing the engine and transmission to select the correct gear to pull the load in most cases resulting in a lower engine load factor and lower fuel burn verses using top gear selection that required the machine to run at engine speeds at or close to high idle.

OPERATOR COMFORT AND CONTROL

  • K Series steering system design requires significantly less steering effort. The reduced steering effort will allow for decreased operator fatigue and a more efficient operator resulting in possible higher rates of production late in the work cycle.
  • The K Series cab interior improves operator comfort and visibility. The overall interior is 21% larger than the G Series cab.
  • Advanced Cushion Hitch allows the cushion hitch to prevent end stroke by having the ability to predict end stroke events and manage the rate of dampening. Resulting in reduced hitch maintenance and improved operator ride in rough conditions.

BUILT-IN SAFETY FEATURES

  • Tire Spin Reduction feature will allow the machine to control the slip of the tractor tires only.
  • In the event of an engine over speed situation, the compression brake or brakes will automatically engage with no operator input. The machine determines the over speed condition based on rate of acceleration and applies compression brakes automatically.
  • Differential Lock Engagement Protection allows the machine to prevent the operator from engaging the differential lock when damage could occur.

SAVE ON MAINTENANCE TIME

  • The fuel, water and engine oil are relocated at ground level on the right hand side of the machine for easy access.

Standard Equipment:

Optional Equipment:

    Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
    Steering Arrangements
    • Secondary Steering Arrangement
    Integrated Technologies
    • Sequence Assist Arrangement with Payload Estimator
    • Load Assist
    • Cat Grade Control with Load Assist
    • Advanced Tire Spin Reduction
    Other Attachments
    • Camera arrangement – Work Area Vision System (WAVS)
    • Cab beacon
    • Air horn
    • Air horn and beacon
    • Wiring group
    • Push Pull
    Service Instructions
    • Film arrangement – U.S. (ANSI)
    • Film arrangement – International (ISO)