CAT CAT®621K Wheel Tractor Scraper

General Data

Tires: Tractor Drive

33.25R29**E3

Tires: Scraper

33.25R29**E3

Rated Load

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

Overall Width

3.57 m

Width of Cut

3.14 m

Maximum Depth of Cut

315 mm

Maximum Depth of Spread

540 mm

Top Speed (Loaded)

53.9 km/h

180° Curb-to-Curb Turning Width

11.8 m

Fuel Tank Refill Capacity: Scraper

763 L

Overall Shipping Height

4.03 m

Scraper Capacity: Struck

13 m3

Scraper Capacity: Heaped

18.4 m3

Engine

Engine Model: Tractor

Cat C13 ACERT™

Note

Cat C13 ACERT engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.

Rated Engine RPM: Tractor

2000 RPM

Flywheel Power: Tractor

304 kW

Bulldozer engine

Flywheel power：Bulldozer/Scraper

304 kW (407 hp)

Scraper bowl

Scraper Stacking Capacity

18.4 m3

Gearbox

Maximum speed（Fully loaded）

53.9 km/h

Service Refill Capacities

Cooling System

45 L

Crankcase

30.58 L

Transmission System

93 L

Fuel Tank

818 L

Hydraulic System

83 L

Diesel Exhaust Fluid

30.5 L

Size

Width of complete machine

3585 mm

Bulldozer width

3381 mm

Width - Inside the bowl

3048 mm

Width – Outside of rear tire

3275 mm

Total transport height

4029 mm

Height - To the top of the cab

3612 mm

Ground clearance of bulldozer

557 mm

Dozer Front End to Front Axle

3119 mm

Distance from axle to vertical coupling pin

540 mm

Height – Scraper Blade（Max）

520 mm

Wheelbase

7998 mm

Rear axle to rear of machine

2898 mm

Width – Overall Machine – Ladder Down

3790 mm

Length – Overall Machine (Standard)

14015 mm

Length – Maximum (Push-Pull)

15576 mm

Width – Rear Tire Centers

2290 mm

Non Push-Pull

Operating Weight (Empty)

36185 kg

Overall Length

14.02 m

Push-Pull

Operating Weight (Empty)

36567 kg

Overall Length (With Bail Down)

15.58 m

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).

Safety Criteria Compliance Standards

Seat Belt

SAE J386:JUN1985

Reverse Alarm

ISO 9533:2010

Rollover Protection Structure (ROPS)

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

Steering System

ISO 5010:2007

Brakes

ISO 3450:1996

Falling Object Protective Structure (FOPS)

ISO 3449:2005 Level II

Travel Speeds (Runout)

Transmission Gear: Second

8.9 km/h

Transmission Gear: Third

12.1 km/h

Transmission Gear: Fourth

16.3 km/h

Transmission Gear: Fifth

21.9 km/h

Transmission Gear: Seventh

39.9 km/h

Transmission Gear: Reverse

9.2 km/h

Transmission Gear: Sixth

29.6 km/h

Transmission Gear: Eighth

53.9 km/h

Transmission Gear: First

5 km/h

Implement Cycle Times

Bowl Lower

3.5 Seconds

Ejector Retract

6.7 Seconds

Bowl Raise

3 Seconds

Apron Raise

2.95 Seconds

Apron Lower

3.8 Seconds

Ejector Extend

5.2 Seconds

Bail Raise

1.8 Seconds

Bail Lower

3.2 Seconds