At a glance data:
Overall Shipping Height:
13.22ft
Overall Width:
11.75ft
Scraper Capacity - Heaped:
24.0yd³
Fuel Tank Refill Capacity - Scraper:
216.1gal (US)
Overview
Our wheel tractor-scrapers have long been considered the basic method of moving volumes of material, and the Cat® 621 Wheel Tractor-Scraper is no exception. Known for its ability to be push-loaded and high travel speeds, it’s always an earthmover’s first tool of choice when working in challenging load areas. With an open bowl and a single engine, this machine is designed to handle a wide range of material types ranging from sand to ripped rock 609.6 mm (24 ") or less in size.
General
Overall Shipping Height:
13.22ft
Overall Width:
11.75ft
Scraper Capacity - Heaped:
24.0yd³
Fuel Tank Refill Capacity - Scraper:
216.1gal (US)
Tires - Scraper:
33.25R29**E3
Width - Cut:
10.3ft
Maximum Depth of Spread:
21.3in
Top Speed - Loaded:
33.5mile/h
Rated Load:
26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
180° Curb-to-Curb Turning Width:
38.71ft
Scraper Capacity - Struck:
17.1yd³
Maximum Depth of Cut:
12.4in
Tires - Tractor Drive:
33.25R29**E3
Engine
Engine Model - Tractor:
Cat C13
Flywheel Power - Tractor:
407.0hp
Note:
Cat C13 engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
Rated Engine RPM - Tractor:
2000.0r/min
Tractor Engine
Flywheel Power - Tractor/Scraper:
304 kW (407 hp)
Scraper Bowl
Scraper Capacity - Heaped:
24.0yd³
Transmission
Top Speed - Loaded:
33.5mile/h
Service Refill Capacities
Hydraulic System:
21.926gal (US)
Crankcase:
8.08gal (US)
Transmission System:
24.76gal (US)
Cooling System:
11.89gal (US)
Fuel Tank:
216.09gal (US)
Diesel Exhaust Fluid:
8.0572gal (US)
Dimensions
Width - Overall Machine:
141.1in
Width - Tractor:
133.1in
Width - Inside of Bowl:
120.0in
Width - Outside Rear Tires:
128.9in
Height - Overall Shipping:
158.6in
Height - Top of Cab:
142.2in
Ground Clearance - Tractor:
21.9in
Front of Tractor to Front Axle:
122.8in
Axle to Vertical Hitch Pin:
21.3in
Height - Scraper Blade Maximum:
20.5in
Wheel Base:
314.9in
Rear Axle - Rear of Machine:
114.1in
Length - Overall Machine - Standard:
551.8in
Length - Maximum (Push-Pull):
613.2in
Width - Overall Machine - Ladder Down:
149.2in
Width - Rear Tire Centers:
90.2in
Non Push-Pull
Operating Weight - Empty:
79787.0lb
Overall Length:
45.9ft
Push-Pull
Overall Length - With Bail Down:
51.1ft
Operating Weight - Empty:
80630.0lb
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:
24.8mile/h
Transmission Gear - Fifth:
13.6mile/h
Transmission Gear - First:
3.1mile/h
Transmission Gear - Sixth:
18.4mile/h
Transmission Gear - Second:
5.5mile/h
Transmission Gear - Third:
7.5mile/h
Transmission Gear - Fourth:
10.1mile/h
Transmission Gear - Eighth:
33.5mile/h
Transmission Gear - Reverse:
5.7mile/h
Implement Cycle Times
Apron Raise:
2.95s
Bowl Raise:
3.0s
Ejector Retract:
6.7s
Bowl Lower:
3.5s
Apron Lower:
3.8s
Ejector Extend:
5.2s
Bail Lower:
3.2s
Bail Raise:
1.8s
Standard Equipment
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)
Optional Equipment
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)
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