CAT 621F Motor Scraper


Dimensions

Overall Length 42.43 ft in (12930 mm)
Overall Width 11.39 ft in (3470 mm)
Overall Height 12.18 ft in (3710 mm)
Wheelbase 25.33 ft in (7720 mm)
Height – Scraper Blade Maximum 21 in (533.4 mm)
Height – Top Of Cab 11.09 ft in (0.29 m)
Length – Overall Machine 507 in (12877.8 mm)
Rear Axle – Rear Of Machine 85 in (2159 mm)
Wheel Base 25.34 ft in (0.65 m)
Width – Inside Of Bowl 116 in (2946.4 mm)
Width – Outside Rear Tires 120 in (3048 mm)
Width – Overall Machine 136 in (3454.4 mm)
Width – Rear Tire Center Lines 87 in (2209.81 mm)
Axle To Vertical Hitch Pin 17 in (431.8 mm)
Width – Tractor 117 in (2971.8 mm)
Front Of Tractor To Front Axle 125 in (3175 mm)
Ground Clearance – Tractor 22 in (558.8 mm)
Height – Overall Shipping 132 in (3352.8 mm)

Tractor Engine

Model 3406CTA
Gross Power 330 hp (246.1 kw)
Displacement 893 cu in (14.7 L)

Engine Details

Tractor Engine 3406C

Tractor Engine

Net Power – Gears 1-2 330 hp (246.1 kw)
Gross Power – Gears 1-2 347 hp (258.8 kw)
CAT Net Power 333 hp (248.4 kw)
Iso 9249 330 hp (246.1 kw)
Eec 80/1269 330 hp (246.1 kw)
Sae J1349 327 hp (243.9 kw)
Bore 5.4 in (137.2 mm)
Stroke 6.5 in (165.1 mm)

Operational Specs

Fuel Tank Capacity 215.1 gal (814 L)

Transmission

Max Speed Forward 31.7 mph (51 km/h)
Reverse 5.7 mile/h

Steering

Width – 180 Degrees Turn 35.8 ft in (10.9 m)
Steering Angle – Right 90 degrees
Steering Angle – Left 85 degrees
Hydraulic Output 52 gal/min

Transmission

1 Forward 3.1 mph (5 km/h)
2 Forward 5.6 mph (9.1 km/h)
3 Forward 7.1 mph (11.5 km/h)
4 Forward 9.6 mph (15.5 km/h)
5 Forward 12.9 mph (20.8 km/h)
6 Forward 17.5 mph (28.2 km/h)
7 Forward 23.6 mph (38 km/h)
8 Forward 31.9 mph (51.4 km/h)

Steering

Ground-Driven Secondary Steering System 39.9 gal/min

Weights

Total Operating – Empty 70746.4 lb (32090 kg)
Operating Weight 70715 lb (32075.8 kg)

Bowl

Rated Payload 47994.7 lb (21770 kg)
Heaped Capacity 20.1 yd3 (15.3 m3)
Struck Capacity 14 yd3 (10.7 m3)
Max Depth Of Cut 13.2 in (333 mm)
Width Of Cut 10 ft in (3020 mm)

Hydraulics

Bowl Cylinder Bore 6 in (152.4 mm)
Bowl Cylinder Stroke 32 in (812.8 mm)
Steering Circuit 52 gal/min
Scraper Circuit 65.5 gal/min
Cushion Hitch Circuit 9.7 gal/min
Relief Valve – Steering Circuit 2250 psi
Relief Valve – Implement Circuit 2150 psi
Ejector Cylinder Bore 6.5 in (165.1 mm)
Ejector Cylinder Stroke 61 in (1549.4 mm)
Secondary Steering Circuit 37 gal/min
Apron Cylinder Bore 7.3 in (184.2 mm)
Apron Cylinder Stroke 24 in (609.6 mm)

Scraper Bowl

Width – Cut – To Router Bits 119 in (3022.6 mm)
Rated Load 48000 lb (21772.5 kg)
Capacity – Struck 14 yd3 (10.8 m3)
Depth Of Cut – Maximum 13.2 in (333 mm)
Ground Clearance – Maximum 20.5 in (520.7 mm)
Cutting Edge Thickness 1.2 in (29 mm)
Depth Of Spread – Maximum 70.1 in (1780.6 mm)
Scraper Capacity – Heaped 30 yd3 (23 m3)
Hyd. Penetration Force – 621g 33840 lb (15349.6 kg)
Apron Closure Force 24075 lb (10920.3 kg)
Apron Opening 70.1 in (1780.6 mm)

Service Refill Capacities – Tractor

Transmission 19 gal (72 L)
Differential 43 gal (162.8 L)
Final Drive – Each 5 gal (19 L)
Cooling System 22 gal (83.3 L)
Hydraulic Reservoir 37 gal (140.1 L)
Crankcase 9.5 gal (36 L)
Wheel Coolant – Each 12 gal (45.5 L)

Weights – Standard, Tandem

Total Shipping 69658 lb (31596.4 kg)
Tractor Shipping 47943 lb (21746.6 kg)
Scraper Shipping 21715 lb (9849.8 kg)
Total Operating – Empty 70715 lb (32075.8 kg)
Front Axle 48109 lb (21821.9 kg)
Rear Axle 22638 lb (10268.5 kg)
Total Operating – Loaded 118707 lb (53844.6 kg)
Front Axle Weight – Loaded 62915 lb (28537.8 kg)
Rear Axle – Weight – Loaded 55792 lb (25306.9 kg)
Ask a question