CAT 623K Motor Scraper

Dimensions

Overall Length 542 in (13767 mm)
Wheelbase 329.5 in (8370 mm)
Width – Overall Machine 141.1 in (3585 mm)
Width – Overall Machine – Ladder Down 149.2 in (3790 mm)
Width -Tractor 133.1 in (3381 mm)
Width – Rear Tire Centers 90.2 in (2290 mm)
Width – Inside of Bowl 120 in (3048 mm)
Width – Outside Rear Tires 128.9 in (3275 mm)
Height – Overall Shipping 158.9 in (4037 mm)
Height to Top of Cab 142.6 in (3621 mm)
Height of Top of Elevator 148.3 in (3768 mm)
Ground Clearance 21.9 in (557 mm)
Front of Tractor to Front Axle 122.8 in (3119 mm)
Axle to Vertical Hitch Pin 17 in (432 mm)
Height – Scraper Blade Maximum 20.5 in (520 mm)
Rear Axle to Rear of Machine 89.7 in (2278 mm)

Scraper Bowl

Scraper Capacity (Heaped) 23.0 yd3 (17.6 m3)
Scraper Capacity (Struck) 17.6 yd3 (13.5 m3)
Cut Width 124 in (3150 mm)
Maximum Depth of Spread 18.3 in (465 mm)
Maximum Depth of Cut 10.3 in (262 mm)
Elevator Flight Spacing 20 in (520 mm)
Maximum Floor Opening 53 in (1344 mm)
Number of Flights 15

Implement Cycle Times

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

Engine Details

Number of Cylinders 6
Engine Make Caterpillar
Engine Model Cat C13 ACERT
Displacement 762.8 cu in (12.5 L)
Bore 5.12 in (130 mm)
Stroke 6.18 in (157 mm)
Net Power 407 hp (304 kW)
Power Measured @ 2000
Peak Torque 1399 lb ft (1896 Nm)
Torque Measured @ 1400
Fuel System Direct Injection
Aspiration Turbocharged Aftercooled (TA)
Emission Standards US EPA Tier 4 Final + EU Stage IV

Operational Specs

Operating Weight (Empty) 88061 lb (39937 kg)
Rated Load Capacity 55200 lb (25038 kg)
Operating Voltage 24 V
Alternator 150 amps
Battery 4x 12 V, CCA 1000
180° Curb-To-Curb Turning Width 38.71 ft in (11.8 m)
Tire Size (Tractor) 33.25R29
Tire Size (Scraper) 33.25R29

Cab

ROPS/FOPS ISO 3471:2008 for up to 37664 lb (17084 kg)
Falling Object Protective Structure (FOPS) ISO 3449:2005 Level II
Steering System ISO 5010:2007
Seat Belt SAE J386:JUN1985
Reverse Alarm ISO 9533:2010
Sound Level (exterior) 111.5 dB(A)

Transmission

Type 8-speed planetary power shift transmission
Number of Gears 8F / 1R
Max Forward Speed 33.5 mph (54 km/h)
Max Reverse Speed 5.7 mph (9.2 km/h)
Service Brakes Primary and secondary, wet disc, hydraulic brakes
Parking Brake Hydraulic-released, spring-applied brake
Standard of Brakes ISO 3450:1996

Service Refill Capacities

Fuel Tank Capacity (Tractor) 216 gal (818 L)
Fuel Tank Capacity (Scraper) 201 gal (763 L)
DEF Tank Capacity 8 gal (30.5 L)
Engine Oil Capacity 8.1 gal (30.6 L)
Cooling System Capacity 11.9 gal (45.1 L)
Hydraulic System Capacity 22 gal (83 L)
Transmission Oil Capacity 24.8 gal (93 L)
Comments: 2
  1. James

    How much fuel does a 623K use per hour when working normal use?

    1. David R. Ledford

      Fuel Consumption for Cat 623K Scraper:
      – Medium Loading: ≅11.4 – 14.4 gal/hr (43.2 – 54.5 L/hr).
      – High Loading: ≅14.4 – 18.0 gal/hr (54.5 – 68.1 L/hr).

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