621K 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.

Category:

Be More Productive

WORK IN COMFORT

DESIGNED FOR SAFETY

EASY TO OPERATE

INTERGRATED CAT TECHNOLOGIES

EXECUTE EFFICIENCY

Standard Equipment

NOTE
  • Standard and optional equipment may vary. Consult your Cat dealer for details.
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
    – 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
    – 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
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)

Additional information

Offering Type

General - Maximum Depth of Spread

540.0 mm ( 21.3 in )

General - Scraper Capacity - Heaped

18.4 m³ ( 24.0 yd³ )

General - Overall Width

3.57 m ( 11.71 ft )

General - Maximum Depth of Cut

315.0 mm ( 12.4 in )

General - Scraper Capacity - Struck

13.0 m³ ( 17.1 yd³ )

General - Tires - Scraper

33.25R29**E3

General - Width - Cut

3.14 m ( 10.3 ft )

General - Fuel Tank Refill Capacity - Scraper

763.0 l ( 201.0 gal (US) )

General - Top Speed - Loaded

53.9 km/h ( 33.5 mile/h )

General - 180° Curb-to-Curb Turning Width

11.8 m ( 38.71 ft )

General - Overall Shipping Height

4.03 m ( 13.22 ft )

General - Tires - Tractor Drive

33.25R29**E3

General - Rated Load

26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)

Engine Model - Tractor

Cat C13

Rated Engine RPM - Tractor

2000.0 r/min ( 2000.0 r/min )

Engine - Flywheel Power - Tractor

304.0 kW ( 407.0 HP )

Engine - Note

C13 engine emits equivalent to U.S. EPA Tier 2/EU Stage II or U.S. EPA Tier 3/EU Stage III.

Tractor Engine - Flywheel Power - Tractor/Scraper

304 kW (407 hp)

Scraper Bowl - Scraper Capacity - Heaped

18.4 m³ ( 24.0 yd³ )

Transmission - Top Speed - Loaded

53.9 km/h ( 33.5 mile/h )

Service Refill Capacities - Transmission System

93.0 l ( 24.76 gal (US) )

Service Refill Capacities - Hydraulic System

83.0 l ( 21.926 gal (US) )

Service Refill Capacities - Crankcase

30.58 l ( 8.08 gal (US) )

Service Refill Capacities - Cooling System

45.0 l ( 11.89 gal (US) )

Service Refill Capacities - Fuel Tank

818.0 l ( 216.09 gal (US) )

Dimensions - Width - Overall Machine

3585.0 mm ( 141.1 in )

Dimensions - Width - Tractor

3381.0 mm ( 133.1 in )

Dimensions - Width - Inside of Bowl

3048.0 mm ( 120.0 in )

Dimensions - Width - Outside Rear Tires

3275.0 mm ( 128.9 in )

Dimensions - Height - Overall Shipping

4029.0 mm ( 158.6 in )

Dimensions - Height - Top of Cab

3612.0 mm ( 142.2 in )

Dimensions - Ground Clearance - Tractor

557.0 mm ( 21.9 in )

Dimensions - Front of Tractor to Front Axle

3119.0 mm ( 122.8 in )

Dimensions - Axle to Vertical Hitch Pin

540.0 mm ( 21.3 in )

Dimensions - Height - Scraper Blade Maximum

520.0 mm ( 20.5 in )

Dimensions - Wheel Base

7998.0 mm ( 314.9 in )

Dimensions - Rear Axle - Rear of Machine

2898.0 mm ( 114.1 in )

Dimensions - Width - Rear Tire Centers

2290.0 mm ( 90.2 in )

Dimensions - Length - Maximum (Push-Pull)

15576.0 mm ( 613.2 in )

Dimensions - Length - Overall Machine - Standard

14015.0 mm ( 551.8 in )

Dimensions - Width - Overall Machine - Ladder Down

3790.0 mm ( 149.2 in )

Non Push-Pull - Operating Weight - Empty

36185.0 kg ( 79787.0 lb )

Non Push-Pull - Overall Length

14.02 m ( 45.9 ft )

Push-Pull - Overall Length - With Bail Down

15.58 m ( 51.1 ft )

Push-Pull - Operating Weight - Empty

36567.0 kg ( 80630.0 lb )

Cab - Exterior Sound Level

The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A).

Cab - ROPS/FOPS

Meets ISO standards

Safety Criteria Compliance Standards - Falling Object Protective Structure (FOPS)

ISO 3449:2005 Level II

Safety Criteria Compliance Standards - Reverse Alarm

ISO 9533:2010

Safety Criteria Compliance Standards - Steering System

ISO 5010:2007

Safety Criteria Compliance Standards - Rollover Protection Structure (ROPS)

ISO 3471:2008 for up to 17 084 kg (37,664 lb)

Safety Criteria Compliance Standards - Seat Belt

SAE J386:JUN1985

Safety Criteria Compliance Standards - Brakes

ISO 3450:2011

Travel Speeds - Runout - Transmission Gear - Reverse

9.2 km/h ( 5.7 mile/h )

Travel Speeds - Runout - Transmission Gear - Sixth

29.6 km/h ( 18.4 mile/h )

Travel Speeds - Runout - Transmission Gear - Eighth

53.9 km/h ( 33.5 mile/h )

Travel Speeds - Runout - Transmission Gear - Third

12.1 km/h ( 7.5 mile/h )

Travel Speeds - Runout - Transmission Gear - Fourth

16.3 km/h ( 10.1 mile/h )

Travel Speeds - Runout - Transmission Gear - Second

8.9 km/h ( 5.5 mile/h )

Travel Speeds - Runout - Transmission Gear - Seventh

39.9 km/h ( 24.8 mile/h )

Travel Speeds - Runout - Transmission Gear - First

5.0 km/h ( 3.1 mile/h )

Travel Speeds - Runout - Transmission Gear - Fifth

21.9 km/h ( 13.6 mile/h )

Implement Cycle Times - Apron Raise

2.95 s ( 2.95 s )

Implement Cycle Times - Bail Lower

3.2 s ( 3.2 s )

Implement Cycle Times - Bowl Lower

3.5 s ( 3.5 s )

Implement Cycle Times - Apron Lower

3.8 s ( 3.8 s )

Implement Cycle Times - Ejector Retract

6.7 s ( 6.7 s )

Implement Cycle Times - Bail Raise

1.8 s ( 1.8 s )

Implement Cycle Times - Ejector Extend

5.2 s ( 5.2 s )

Implement Cycle Times - Bowl Raise

3.0 s ( 3.0 s )

Select Up To 3 Models To Compare