623 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.

Key Specs

  • Flywheel Power - Tractor/Scraper 304 kW (407 hp)
  • Scraper Capacity - Heaped 23 yd³
  • Top Speed - Loaded 33.5 mile/h

Benefits

Increased Comfort

Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long

More Elevator Torque

A stronger elevator structure reduces chain wear and improves available torque

Additional Safety

New safety features help operators be more productive and work more efficiently all day long

Engine

Flywheel Power - Tractor/Scraper 304 kW (407 hp)
Engine Model Cat® C13
Rated Engine RPM 2000r/min
Flywheel Power - Tractor 407hp
Note Meets U.S. EPA Tier 4 Final and EU Stage V emission standards, or equivalent to U.S. EPA Tier 2, or equivalent to U.S. EPA Tier 3 and EU Stage IIIA.

Scraper Bowl

Scraper Capacity - Heaped 23yd³

General

Top Speed - Loaded 33.5mile/h
Overall Width 11.8ft
Overall Shipping Height 12.37ft
Scraper Capacity - Heaped 23yd³
Scraper Capacity - Struck 18.8yd³
Rated Load 25 038 kg (55,200 lb); 25.1 tonnes (27.6 tons)
Width - Cut 10.4ft
Maximum Depth of Cut 10.3in
Maximum Depth of Spread 18.3in
180° Curb-to-Curb Turning Width 38.71ft
Tires - Tractor Drive 33.25R29**E3
Tires - Scraper 33.25R29**E3
Number of Flights 15
Maximum Floor Opening 4.4ft
Overall Length 45.18ft
Elevator Flight Spacing 20in

Implement Cycle Times

Ejector Extend 6.5s
Ejector Retract 9.7s
Bowl Lower 3.5s
Bowl Raise 3s

Cab

Exterior Sound Level The exterior sound power level for the standard machine (ISO 6395:2008) is 114 dB(A).
ROPS/FOPS Meets ISO standards

Safety Criteria Compliance Standards

Steering System ISO 5010:2007
Rollover Protection Structure (ROPS) ISO 3471:2008 for up to 17 084 kg (37,664 lb)
Falling Object Protective Structure (FOPS) ISO 3449:2005 Level II
Reverse Alarm ISO 9533:2010
Brakes ISO 3450:2011
Seat Belt SAE J386:JUN1985

Transmission

Top Speed - Loaded 33.5mile/h

Travel Speeds - Runout

Transmission Gear - First 3.1mile/h
Transmission Gear - Second 5.5mile/h
Transmission Gear - Third 7.5mile/h
Transmission Gear - Fourth 10.1mile/h
Transmission Gear - Fifth 13.6mile/h
Transmission Gear - Sixth 18.4mile/h
Transmission Gear - Seventh 24.8mile/h
Transmission Gear - Eighth 33.5mile/h
Transmission Gear - Reverse 5.7mile/h

Service Refill Capacities

Final Drive - Each 5gal (US)
Crankcase 9.7gal (US)
Transmission System 25.5gal (US)
Fuel Tank 216.09gal (US)
Hydraulic System 21.926gal (US)

Service Refill Capacities - Tractor

Differential 41.7gal (US)

Dimensions

Height - Overall Shipping 158.9in
Length - Overall Machine 542in
Axle to Vertical Hitch Pin 17in
Width - Overall Machine 141.1in
Width - Overall Machine - Ladder Down 149.2in
Height - Top of Cab 142.6in
Height - Scraper Blade Maximum 20.5in
Width - Tractor 133.1in
Width - Inside of Bowl 120in
Width - Outside Rear Tires 128.9in
Front of Tractor to Front Axle 122.8in
Wheel Base 329.5in
Rear Axle - Rear of Machine 89.7in
Ground Clearance - Tractor 21.9in
Width - Rear Tire Centers 90.2in
Height - Top of Elevator 148.3in

BE MORE PRODUCTIVE

  • Additional elevator torque.
  • Improvement in chain life.
  • Enhanced elevator drive sprocket for reduced chain wear.Improved scissor-style chain tension system for decreased sprocket wear, chain wear, and chain jumping.
  • Cat C13 engine offers increased power density with a combination of proven electronic, fuel, and air systems.
  • Use Ground Speed Control to set the desired top speed, and the machine will find the gear that works best for the engine and the transmission, providing a lower fuel burn.
  • The Machine Speed Limit feature replaces Top Gear Selection.
  • Advanced Productivity Electronic Control System (APECS) allows the engine and transmission to communicate on a high level. This communication allows the machine to better utilize the power and torque the engine is producing. The net result is moving more material.
  • Auto-Stall assists in quickly bringing the transmission to an operating temperature at start-up when the machine is working in a cold climate region.
  • Cat Payload for scrapers is an earthmoving solution for optimal payload and job site efficiency. Cat Payload achieves on-the-go weighing by using bowl lift cylinder pressure during the loaded haul segment. Cat Payload is optimized to be used with Sequence Assist, which provides increased productivity with less operator effort.

WORK IN COMFORT

  • Reduce up to 14 individual operator commands per cycle with
    Sequence Assist (optional attachment).
  • Steer with less effort using the newly designed high-pressure steering
     system.
  • Enjoy interior improvements and a more ergonomic work environment
     with a 21% larger cab than the G Series cab.
  • Intuitive, ergonomic controls keep operators focused on their work.
  • Maintain desired cab temperature with automatic temperature control
    .

DESIGNED FOR SAFETY

  • Enhance an operator’s awareness of site surroundings with the optional
     Work Area Vision System (WAVS).
  • The seatbelt indicator provides both visual and audible alerts when the seat
    belt is not in use.
  • Ground-level, engine shut-off switch stops all fuel to the engine when
     activated and shuts down the machine.
  • 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.

EASY TO OPERATE

  • The spacious cab features easy, intuitive controls and excellent
    visibility. The cab provides a comfortable working environment for
    all-day operation.
  • Cat Advanced Ride Management (ARM) seat suspension reduces
    end stroke movement of the load cylinder for a smoother ride.
  • Engine overspeed protection will automatically engage with no
    operator input when the machine is in eighth gear. The machine
    will assist in slowing the machine speed by canceling the throttle
    command and engaging the engine compression brake.

INTEGRATED CAT TECHNOLOGIES

  • Monitor, manage, and enhance job site operations.
  • Hit target grade faster and more accurately with Cat GRADE technologies. Finish jobs in fewer passes and with less operator effort, saving you time and helping to increase profit.
  • Product Link™ collects machine data that can be viewed online through web and mobile applications (optional attachment).
  • Access information anytime, anywhere with Vision Link®– use it to make informed decisions that boost productivity, lower costs, simplify maintenance, and improve safety and security on your job site.
  • Shorten the learning curve for inexperienced operators with Sequence Assist and Load Assist (included with Cat Grade
        attachment).

EXECUTE EFFICIENCY

  • The tractor hydraulic on-demand fan helps assist in lower fuel consumption.
  • The Cat C13 tractor engine and C9.3 scraper engine meet U.S. EPA
        Tier 4 Final and EU Stage V emission standards, or equivalent to
        U.S. EPA Tier 2, or equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
  • Cat Grade Control (optional attachment) intelligently ensures the machine does not cut below grade in a cut area or overfill in the fill area.

Standard Equipment

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Integrated Technologies
    • Sequence Assist, Cat Payload
  • Power Train - Tractor
    • Cat C13
    • 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
    • Primary and secondary, wet disc, hydraulic
    • Throttle lock
    • Parking , hydraulic released, spring applied
  • Transmission
    • Programmable top gear selection
    • Ground speed control
    • Machine speed limit
    • Guard, power train
    • Differential lock protection
    • Differential lock
    • Transmission hold
    • ECPC control
    • Standard tire spin reduction
    • 8-speed planetary power shift
    • APECS software
  • Electrical - Tractor
    • Alternator, 150 Amp
    • Batteries (4), 12V, 1,000 CCA, maintenance free, high output
    • Electrical system, 24V
    • Starting/charging receptacle
  • Lighting System - Tractor
    • Headlights, halogen
    • LED Floodlights
    • Turn Signals with hazard Function
    • Bowl (1)
    • Cutting Edge (2)
    • Halogen sdie vision (2)
  • Electrical - Scraper
    • Alarm, backup
  • Lighting System - Scraper
    • Trun signals with hazard function, LED
    • Brake lights, 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
    • 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
  • Keypad Switches
    • Information mode on Messenger Display
    • Throttle lock
    • Hazard lights
    • Retarding level select
    • Work lights on/off
    • Wipers/washers
  • Safety Tab Rocker Switches
    • Parking Brake
    • Regeneration control
  • Gauges, Warnings Include:
    • Coolant temperature
    • Gear selection
    • Fuel level
    • Bail down
    • Cushion hitch
    • Engine oil temperature
    • Brake system
    • System voltage
    • Regeneration required
    • High beam lights
    • Implement lockout
    • Throttle lock
    • Ejector auto
    • Park brake
    • Action lamp
    • Hydraulic oil temperature
    • Differential lock (1)
    • Secondary steering
    • Transmission hold
    • Apron float
    • Engine speed, rpm
  • 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
  • Bowl
    • 17.6 m³ (23 yd³), heaped
    • 13.5 m� (17.6 yd�), struck
  • Other Standard Equipment - Scraper
    • Vandalism locks
    • Elevator with 15 flights
    • Hydraulic position sensing cylinders (bowl lift and apron)

Optional Equipment

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Steering Arrangements
    • Secondary Steering Arrangement
  • Integrated Technologies
    • Product Link
    • Cat Grade Control, Cat Payload, Sequence Assist and Load Assist
  • Other Attachments
    • Camera arrangement - WAVS
    • Steering lock - external
    • Cab beacon
    • Air horn
    • Air horn and beacon
    • Fender, scraper
    • Wiring group
    • Year of manufacture plate
  • Work Light Attachments
    • HID work lights
  • Ambient Capability Arrangements
    • Cooling, high ambient HRC
    • Extended Life Coolant, -50� C (-58� F)
    • Cooling, high ambient LRC
    • Cooling, low ambient LRC
  • Service Instructions
    • Film arrangement - U.S. (ANSI)
    • Film arrangement - International (ISO)