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623K Wheel Tractor-Scraper

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    623K Wheel Tractor-Scraper

    Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.

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    Flywheel Power: Tractor/Scraper
    304 kW (407 hp)
    Scraper Capacity: Heaped
    23.0 yd3
    Top Speed (Loaded)
    33.5 mph
    Height - Overall Shipping
    158.9 in

    Engine

    Flywheel Power: Tractor/Scraper
    304 kW (407 hp)
    Engine Model
    Cat C13 ACERT™
    Flywheel Power: Tractor
    407.0hp
    Note
    Cat C13 ACERT engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
    Rated Engine RPM
    2000.0RPM

    Scraper Bowl

    Scraper Capacity: Heaped
    23.0yd3

    Transmission

    Top Speed (Loaded)
    33.5mph

    Dimensions

    Height - Overall Shipping
    158.9in
    Length - Overall Machine
    542.0in
    Width - Overall Machine
    141.1in
    Height - Top of Cab
    142.6in
    Height - Scraper Blade Maximum
    20.5in
    Width - Tractor
    133.1in
    Width - Inside of Bowl
    120.0in
    Width - Outside Rear Tires
    128.9in
    Front of Tractor to Front Axle
    122.8in
    Wheelbase
    329.5in
    Rear Axle to Rear of Machine
    89.7in
    Ground Clearance - Tractor
    21.9in
    Axle to Vertical Hitch Pin
    17.0in
    Height of Top of Elevator
    148.3in
    Width - Overall Machine - Ladder Down
    149.2in
    Width - Rear Tire Centers
    90.2in

    Service Refill Capacities

    Fuel Tank
    216.09gal
    Crankcase
    8.08gal
    Cooling System
    11.89gal
    Diesel Exhaust Fluid
    8.0572gal
    Hydraulic System
    21.926gal
    Transmission System
    24.76gal

    Cab

    Exterior Sound Level
    The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A).
    ROPS/FOPS
    Meets SAE and ISO standards

    Safety Criteria Compliance Standards

    Brakes
    ISO 3450:1996
    Falling Object Protective Structure (FOPS)
    ISO 3449:2005 Level II
    Reverse Alarm
    ISO 9533:2010
    Rollover Protection Structure (ROPS)
    ISO 3471:2008 for up to 17 084 kg (37,664 lb)
    Seat Belt
    SAE J386:JUN1985
    Steering System
    ISO 5010:2007

    Travel Speeds (Runout)

    Transmission Gear: Eighth
    33.5mph
    Transmission Gear: Fifth
    13.6mph
    Transmission Gear: First
    3.1mph
    Transmission Gear: Fourth
    10.1mph
    Transmission Gear: Reverse
    5.7mph
    Transmission Gear: Second
    5.5mph
    Transmission Gear: Seventh
    24.8mph
    Transmission Gear: Sixth
    18.4mph
    Transmission Gear: Third
    7.5mph

    General Data

    180° Curb-to-Curb Turning Width
    38.71ft
    Elevator Flight Spacing
    20.0in
    Fuel Tank Refill Capacity: Scraper
    201.0gal
    Maximum Depth of Cut
    10.3in
    Maximum Depth of Spread
    18.3in
    Maximum Floor Opening
    4.4ft
    Number of Flights
    15
    Operating Weight (Empty)
    88061.0lb
    Overall Length
    45.18ft
    Overall Shipping Height
    12.37ft
    Overall Width
    11.71ft
    Rated Load
    25 038 kg (55,200 lb); 25.1 tonnes (27.6 tons)
    Scraper Capacity: Heaped
    23.0yd3
    Scraper Capacity: Struck
    18.8yd3
    Tires: Scraper
    33.25R29**E3
    Tires: Tractor Drive
    33.25R29**E3
    Top Speed (Loaded)
    33.5mph
    Width of Cut
    10.3ft

    Implement Cycle Times

    Bowl Lower
    3.5Seconds
    Bowl Raise
    3.0Seconds
    Ejector Extend
    6.45Seconds
    Ejector Retract
    9.7Seconds

    Main Features and Benefits

    • Tractor Serviceability Improvement - The filter bank located at the rear of the engine compartment has undergone improvements for serviceability by raising the filter bank up for easier access.

    • Engine Over Speed Protection - 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.

    • Advanced Cushion Hitch - With similar technology as the Cat® Advanced Ride Management seat suspension, this software allows the cushion hitch to prevent end stroke by having the ability to predict end stroke events and manage the rate of dampening. The desired result is improved hitch repair, reduced maintenance and improved operator ride in rough conditions.

    • High Pressure Steering - 620K 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.

    • Load Assist Option - The 623K now is offered with the Load Assist option like the 621K and 627K.

    • Draft Arm Overflow Guards - The open bowls now come standard with bowl side overflow guards to help prevent material from flowing over the bowl sides and falling onto the draft arms where material becomes lodged between the bowl side and draft arm resulting in decreased work cycle times.

    • Auto Stall - In cold weather conditions the machine will use the Auto Stall feature to help warm up the transmission oil faster resulting in the machine shifting out of torque converter drive (2nd gear) faster than on previous models.

    • Differential Lock Engagement Protection (Standard) - This standard feature allows the machine to prevent the operator from engaging the differential lock when damage could occur.

    • Cab Improved - The interior of the K Series cabs has improved the operator comfort and visibility by redesigning the dash area and key pad placement.

    • Machine Speed Limit - This feature 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 high idle.

    • Ground Speed Control - 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. Allowing the engine and transmission to select the correct gear to pull the load in most cases will result in a lower engine load factor and lower fuel burn verses top gear selection.

    Standard Equipment:

    • Power Train - Tractor
      • Cat C13 ACERT engine with MEUI™
      • Cat engine brake
      • Electric start, 24 Volt
      • Air cleaner, dry type with precleaner
      • Fan, hydraulic
      • Ground level engine shutdown
      • Radiator, aluminum unit core, 9 fins per inch
      • Guard, crankcase
      • Muffler (only for less or non-regulated regions engine arrangement only)
      • Starting aid, ether
      • Braking system: - Primary and secondary, wet disc, hydraulic - Parking, hydraulic-released, spring-applied - Throttle lock
      • Transmission: - 8-speed planetary power shift - ECPC control - APECS software - Programmable top gear selection - Transmission hold - Differential lock - Guard, power train - Standard tire spin reduction - Ground speed control - Machine speed limit - Differential lock protection
    • Power Train - Scraper
      • Braking system: - Primary and secondary, wet disc, hydraulic
    • Electrical - Tractor
      • Alternator, 150 Amp
      • Batteries (4), 12V, 1,000 CCA, maintenance free, high output
      • Electrical system, 24V
      • Lighting system: - Headlights, halogen - Turn signals with hazard function, LED floodlights, (2) cutting edge (1) bowl, halogen side vision (2)
      • Starting/charging receptacle
    • Electrical - Scraper
      • Alarm, backup
      • Lighting system: - Brake lights, LED - Turn signals with hazard function, LED
    • Operator Environment - Tractor
      • HVAC system, heat, AC, defrost
      • Thermostat control of HVAC system
      • Coat hook
      • Lunchbox platform with holding strap
      • Diagnostic connection (2)
      • 12V power ports (2)
      • Differential lock (1)
      • Dome courtesy light
      • Horn, electric
      • T-Handle implement control
      • Mirror, rearview
      • Radio ready
      • ROPS/FOPS cab, pressurized
      • Keypad switches: - Throttle lock - Wipers/washers - Hazard lights - Retarding level select - Work lights on, off - Information mode on Messenger Display
      • Safety tab rocker switches: - Regeneration control (Tier 4 Final/EU Stage IV only) - Parking brake
      • Seat belt, static two-piece
      • Seat, Cat Advanced Ride Management (ARM), Cat Comfort Series 3, rotates 30 degrees
      • Steering wheel, tilt, telescoping, padded
      • Windows, right side emergency egress
      • Windows, sliding
      • Windows, laminated, zipped in
      • Windshield wipers, front and rear windows, includes washers
      • Door lock
      • Messenger Display
      • Gauges, warnings include: - Coolant temperature - Engine oil temperature - Hydraulic oil temperature - DPF temperature - Fuel level - Park brake - Implement lockout - Brake system - Regeneration required - Throttle lock - System voltage - Secondary steering - Bail down - Ejector auto - Differential lock - Apron float - Transmission hold - Cushion hitch - High beam lights - Action lamp - Engine speed, rpm - Gear selection - DEF fill levels
    • Fluids
      • Extended Life Coolant to -37° C (-34° F)
    • Other Standard Equipment - Tractor
      • Advanced cushion hitch
      • Accumulators (cushion hitch) with Canadian Registration Number (CRN)
      • Fast oil change
      • Fenders, non-metallic
      • Heater, engine coolant 120V
      • Rims (2)
      • Tow pin, front
      • Vandalism locks
      • Heater, engine coolant 120V
    • Other Standard Equipment - Scraper
      • Bowl: - 17.6 m3 (23 yd3), heaped - 13.5 m3 (17.6 yd3), struck
      • Vandalism locks
      • Elevator with 15 flights
      • Hydraulic position sensing cylinders (bowl lift and apron)

    Optional Equipment:

    • Steering Arrangements
      • Secondary Steering Arrangement
    • Integrated Technologies
      • Sequence Assist Arrangement
      • Load Assist
      • Cat Grade Control with Load Assist
    • Other Attachments
      • Camera arrangement - WAVS
      • Steering lock - external
      • Cab beacon
      • Air horn
      • Air horn and beacon
      • Fender, scraper
      • Wiring group
    • Work Light Attachments
      • HID work lights
    • Ambient Capability Arrangements
      • Cooling, high ambient HRC
      • Cooling, low ambient HRC
      • Cooling, high ambient LRC
      • Cooling, low ambient LRC
    • Other Attachments
      • Year of manufacture plate
    • Service Instructions
      • Film arrangement - U.S. (ANSI)
      • Film arrangement - International (ISO)