- Overall Length: 42.43 ft / 12930 mm
- Overall Width: 11.39 ft / 3470 mm
- Overall Height: 12.18 ft / 3710 mm
- Wheelbase: 25.33 ft / 7720 mm
Published dimensions and weight
Caterpillar 621F
The Caterpillar 621F is a 32.1 t-class motor scraper with a 330 hp engine.
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale
01Dimensions referenceLength × width × height
02Operating Weight70715 lb32075.8 kg
03Selected published values92
Motor scrapers are commonly used to cut, load, haul and spread soil over medium-distance earthmoving cycles. Published rows for Caterpillar 621F include published payload of 47994.7 lb / 21770 kg, published body capacity of 20.1 yd3 / 15.3 m3, published engine power of 330 hp / 246.1 kw. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Overall Length” field (42.43 ft / 12930 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Overall Width” field (11.39 ft / 3470 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Overall Height” field (12.18 ft / 3710 mm) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Dimensions
Overall Length42.43 ft12930 mm
Overall Width11.39 ft3470 mm
Overall Height12.18 ft3710 mm
Wheelbase25.33 ft7720 mm
Height - Scraper Blade Maximum21 in533.4 mm
Height - Top Of Cab11.09 ft0.29 m
Length - Overall Machine507 in12877.8 mm
Rear Axle - Rear Of Machine85 in2159 mm
Wheel Base25.34 in0.65 m
Width - Inside Of Bowl116 in2946.4 mm
Width - Outside Rear Tires120 in3048 mm
Width - Overall Machine136 in3454.4 mm
Width - Rear Tire Center Lines87 in2209.81 mm
Axle To Vertical Hitch Pin17 in431.8 mm
Width - Tractor117 in2971.8 mm
Front Of Tractor To Front Axle125 in3175 mm
Ground Clearance - Tractor22 in558.8 mm
Height - Overall Shipping132 in3352.8 mm
Tractor Engine
Model3406CTA3406CTA
Gross Power330 hp246.1 kw
Displacement893 cu in14.7 L
Net Power - Gears 1-2330 hp246.1 kw
Gross Power - Gears 1-2347 hp258.8 kw
Caterpillar Net Power333 hp248.4 kw
Iso 9249330 hp246.1 kw
Eec 80/1269330 hp246.1 kw
Sae J1349327 hp243.9 kw
Bore5.4 in137.2 mm
Stroke6.5 in165.1 mm
Engine
Tractor Engine3406C3406C
Operational
Fuel Capacity215.1 gal814 L
Transmission
Max Speed Forward31.7 mph51 km/h
Reverse5.7 mile/h5.7 mile/h
1 Forward3.1 mph5 km/h
2 Forward5.6 mph9.1 km/h
3 Forward7.1 mph11.5 km/h
4 Forward9.6 mph15.5 km/h
5 Forward12.9 mph20.8 km/h
6 Forward17.5 mph28.2 km/h
7 Forward23.6 mph38 km/h
8 Forward31.9 mph51.4 km/h
Steering
Width - 180 Degrees Turn35.8 ft10.9 m
Steering Angle - Right90 degrees90 degrees
Steering Angle - Left85 degrees85 degrees
Hydraulic Output52 gal/min52 gal/min
Ground-Driven Secondary Steering System39.9 gal/min39.9 gal/min
Weights
Total Operating - Empty70746.4 lb32090 kg
Operating Weight70715 lb32075.8 kg
Bowl
Rated Payload47994.7 lb21770 kg
Heaped Capacity20.1 yd315.3 m3
Struck Capacity14 yd310.7 m3
Max Depth Of Cut13.2 in333 mm
Width Of Cut10 ft3020 mm
Hydraulics
Bowl Cylinder Bore6 in152.4 mm
Bowl Cylinder Stroke32 in812.8 mm
Steering Circuit52 gal/min52 gal/min
Scraper Circuit65.5 gal/min65.5 gal/min
Cushion Hitch Circuit9.7 gal/min9.7 gal/min
Relief Valve - Steering Circuit2250 psi2250 psi
Relief Valve - Implement Circuit2150 psi2150 psi
Ejector Cylinder Bore6.5 in165.1 mm
Ejector Cylinder Stroke61 in1549.4 mm
Secondary Steering Circuit37 gal/min37 gal/min
Apron Cylinder Bore7.3 in184.2 mm
Apron Cylinder Stroke24 in609.6 mm
Scraper Bowl
Width - Cut - To Router Bits119 in3022.6 mm
Rated Load48000 lb21772.5 kg
Capacity - Struck14 yd310.8 m3
Depth Of Cut - Maximum13.2 in333 mm
Ground Clearance - Maximum20.5 in520.7 mm
Cutting Edge Thickness1.2 in29 mm
Depth Of Spread - Maximum70.1 in1780.6 mm
Scraper Capacity - Heaped30 yd323 m3
Hyd. Penetration Force - 621g33840 lb15349.6 kg
Apron Closure Force24075 lb10920.3 kg
Apron Opening70.1 in1780.6 mm
Service Refill Capacities - Tractor
Transmission19 gal72 L
Differential43 gal162.8 L
Final Drive - Each5 gal19 L
Cooling System22 gal83.3 L
Hydraulic Reservoir37 gal140.1 L
Crankcase9.5 gal36 L
Wheel Coolant - Each12 gal45.5 L
Weights - Standard, Tandem
Total Shipping69658 lb31596.4 kg
Tractor Shipping47943 lb21746.6 kg
Scraper Shipping21715 lb9849.8 kg
Total Operating - Empty70715 lb32075.8 kg
Front Axle48109 lb21821.9 kg
Rear Axle22638 lb10268.5 kg
Total Operating - Loaded118707 lb53844.6 kg
Front Axle Weight - Loaded62915 lb28537.8 kg
Rear Axle - Weight - Loaded55792 lb25306.9 kg
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Manufacturer-published specifications.