CAT 623K Motor Scraper


Dimensions

Height – Top Of Cab 11.89 ft in (0.31 m)
Height – Top Of Elevator 148.31 in (3766.82 mm)
Rear Axle – Rear Of Machine 89.7 in (2278.38 mm)
Length – Overall Machine 542 in (13766.8 mm)
Front Of Tractor To Front Axle 122.8 in (3119.12 mm)
Axle To Vertical Hitch Pin 17 in (431.8 mm)
Ground Clearance – Tractor 21.9 in (556.26 mm)
Height – Overall Shipping 158.9 in (4036.06 mm)
Wheel Base 27.46 ft in (0.7 m)
Height – Scraper Blade Maximum 20.5 in (520.71 mm)
Width – Inside Of Bowl 120 in (3048 mm)
Width – Outside Rear Tires 128.9 in (3274.06 mm)
Width – Overall Machine 141.1 in (3583.94 mm)
Width – Overall Machine – Ladder Down 149.2 in (3789.68 mm)
Width – Rear Tire Centers 90.2 in (2291.08 mm)
Width – Tractor 133.1 in (3380.74 mm)

General

Overall Length 45.18 ft in (13.78 m)
Overall Width 11.71 ft in (3.57 m)
Overall Shipping Height 12.37 ft in (3.78 m)
Elevator Flight Spacing 20 in (508 mm)
Fuel Tank Refill Capacity – Scraper 201 gal (760.87 L)
Maximum Depth Of Cut 10.3 in (261.62 mm)
Maximum Depth Of Spread 18.3 in (464.82 mm)
Maximum Floor Opening 4.41 ft in (1.35 m)
Number Of Flights 15
Operating Weight – Empty 88061 lb (39943.81 kg)
180 Degrees Curb-To-Curb Turning Width 38.71 ft in (11.8 m)
Rated Load 25 038 kg (55,200 lb); 25.1 tonnes (27.6 tons)
Scraper Capacity – Heaped 23 yd3 (17.59 m3)
Scraper Capacity – Struck 18.8 yd3 (14.38 m3)
Tires – Scraper 33.25R29**E3
Tires – Tractor Drive 33.25R29**E3
Top Speed – Loaded 33.5 mph (53.92 km/h)
Width – Cut 10.3 ft in (3.14 m)

Engine Details

Engine Model Cat C13 ACERT
Note Cat C13 ACERT engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
Flywheel Power – Tractor/Scraper 304 kW (407 hp)
Rated Engine Rpm 2000 rpm
Flywheel Power – Tractor 407 hp (303.5 kw)

Transmission

Top Speed – Loaded 33.5 mph (54 km/h)

Service Refill Capacities

Cooling System 11.9 gal (45.1 L)
Fuel Tank Capacity 216.1 gal (818 L)
Crankcase 8.1 gal (30.6 L)
Hydraulic System 22 gal (83 L)
Diesel Exhaust Fluid 8.1 gal (30.5 L)
Transmission System 24.8 gal (93.8 L)

Cab

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

Scraper Bowl

Scraper Capacity – Heaped 23 yd3 (17.6 m3)

Implement Cycle Times

Bowl Raise 3 s
Bowl Lower 3.5 s
Ejector Extend 6.45 s
Ejector Retract 9.7 s

Safety Criteria Compliance Standards

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
Brakes ISO 3450:1996
Steering System ISO 5010:2007
Seat Belt SAE J386:JUN1985
Reverse Alarm ISO 9533:2010

Travel Speeds – Runout

Transmission Gear – First 3.1 mph (5 km/h)
Transmission Gear – Second 5.5 mph (8.9 km/h)
Transmission Gear – Third 7.5 mph (12.1 km/h)
Transmission Gear – Fourth 10.1 mph (16.3 km/h)
Transmission Gear – Fifth 13.6 mph (21.9 km/h)
Transmission Gear – Sixth 18.4 mph (29.7 km/h)
Transmission Gear – Seventh 24.8 mph (40 km/h)
Transmission Gear – Eighth 33.5 mph (54 km/h)
Transmission Gear – Reverse 5.7 mph (9.2 km/h)
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