The Cat 621 Wheel Tractor-Scraper

General +

Overall Shipping Height
13.22 ft
Overall Width
11.75 ft
Scraper Capacity - Heaped
24.0 yd³
Fuel Tank Refill Capacity - Scraper
216.1 gal (US)
Tires - Scraper
33.25R29**E3
Width - Cut
10.3 ft
Maximum Depth of Spread
21.3 in
Top Speed - Loaded
33.5 mile/h
Rated Load
26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
180° Curb-to-Curb Turning Width
38.71 ft
Scraper Capacity - Struck
17.1 yd³
Maximum Depth of Cut
12.4 in
Tires - Tractor Drive
33.25R29**E3

Engine +

Engine Model - Tractor
Cat C13
Flywheel Power - Tractor
407.0 hp
Note
Cat C13 engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
Rated Engine RPM - Tractor
2000.0 r/min

Tractor Engine +

Flywheel Power - Tractor/Scraper
304 kW (407 hp)

Scraper Bowl +

Scraper Capacity - Heaped
24.0 yd³

Transmission +

Top Speed - Loaded
33.5 mile/h

Service Refill Capacities +

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

Dimensions +

Width - Overall Machine
141.1 in
Width - Tractor
133.1 in
Width - Inside of Bowl
120.0 in
Width - Outside Rear Tires
128.9 in
Height - Overall Shipping
158.6 in
Height - Top of Cab
142.2 in
Ground Clearance - Tractor
21.9 in
Front of Tractor to Front Axle
122.8 in
Axle to Vertical Hitch Pin
21.3 in
Height - Scraper Blade Maximum
20.5 in
Wheel Base
314.9 in
Rear Axle - Rear of Machine
114.1 in
Length - Overall Machine - Standard
551.8 in
Length - Maximum (Push-Pull)
613.2 in
Width - Overall Machine - Ladder Down
149.2 in
Width - Rear Tire Centers
90.2 in

Non Push-Pull +

Operating Weight - Empty
79787.0 lb
Overall Length
45.9 ft

Push-Pull +

Overall Length - With Bail Down
51.1 ft
Operating Weight - Empty
80630.0 lb

Cab +

Exterior Sound Level
The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A).
ROPS/FOPS
Meets SAE and ISO standards

Safety Criteria Compliance Standards +

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

Travel Speeds - Runout +

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

Implement Cycle Times +

Apron Raise
2.95 s
Bowl Raise
3.0 s
Ejector Retract
6.7 s
Bowl Lower
3.5 s
Apron Lower
3.8 s
Ejector Extend
5.2 s
Bail Lower
3.2 s
Bail Raise
1.8 s

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

POWER TRAIN - TRACTOR

Cat C13 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
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: - 18.4 m3 (24 yd3), heaped - 14.1 m3 (18.4 yd3), struck
Vandalism locks
Hydraulic position sensing cylinders (bowl lift and apron)

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

STEERING ARRANGEMENTS

Secondary Steering Arrangement

INTEGRATED TECHNOLOGIES

Sequence Assist Arrangement
Load Assist
Cat Grade Control with Load Assist

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

Camera arrangement - WAVS
Steering lock - external
Cab beacon
Air horn
Air horn and beacon
Fender, scraper
Guard, overflow
Wiring group
Year of manufacture plate

SERVICE INSTRUCTIONS

Film arrangement - U.S. (ANSI)
Film arrangement - International (ISO)

Open Bowl Scrapers

621

OVERVIEW

BENEFITS

BE MORE PRODUCTIVE

WORK IN COMFORT

DESIGNED FOR SAFETY

EASY TO OPERATE

INTEGRATED CAT TECHNOLOGIES

EXECUTE EFFICIENCY

Get a Quote for 621

NOTE

POWER TRAIN - TRACTOR

POWER TRAIN - SCRAPER

ELECTRICAL - TRACTOR

ELECTRICAL - SCRAPER

OPERATOR ENVIRONMENT - TRACTOR

FLUIDS

OTHER STANDARD EQUIPMENT - TRACTOR

OTHER STANDARD EQUIPMENT - SCRAPER

NOTE

STEERING ARRANGEMENTS

INTEGRATED TECHNOLOGIES

WORK LIGHT ATTACHMENTS

AMBIENT CAPABILITY ARRANGEMENTS

OTHER ATTACHMENTS

SERVICE INSTRUCTIONS

MEDIA GALLERY

DOWNLOAD RESOURCES

BROWSE

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