Caterpillar 621H Scraper Specs

Category: Scrapers ➔
Manufacturer: Caterpillar ➔
Model: 621H ➔

Dimensions

Caterpillar 621H Scraper Dimensions specifications
Height	13.17 ft (4.01 m)
Length	46.00 ft (14.02 m)
Weight	78,279.00 lbs (35,506.80 kg)
Width	11.58 ft (3.53 m)

Engine

Caterpillar 621H Scraper Engine specifications
Maximum Power	407.00 hp (303.50 kw)
Tractor	Cat C13 ACERT

Hydraulics

Caterpillar 621H Scraper Hydraulics specifications
Apron Cylinder Bore	5.90 in (14.99 cm)
Apron Cylinder Stroke	22.20 in (56.39 cm)
Bowl Cylinder Bore	5.50 in (13.97 cm)
Bowl Cylinder Stroke	33.30 in (84.58 cm)
Cushion Hitch Circuit Flow	10.60 gpm (40.12 lpm)
Cushion Hitch Cylinder Bore	5.50 in (13.97 cm)
Cushion Hitch Cylinder Stroke	9.90 in (25.15 cm)
Ejector Cylinder Bore	5.50 in (13.97 cm)
Ejector Cylinder Stroke	61.00 in (154.94 cm)
Push/Pull Bail Cylinder Bore	3.50 in (8.89 cm)
Push/Pull Bail Cylinder Stroke	16.30 in (41.40 cm)
Scraper Circuit Flow	66.00 gpm (249.81 lpm)
Secondary Steering Circuit Flow	10.30 gpm (38.99 lpm)
Steering Circuit Flow	61.80 gpm (233.91 lpm)
Steering Cylinder - Bore	5.00 in (12.70 cm)
Steering Cylinder - Stroke	44.40 in (112.78 cm)

Scraper Bowl

Caterpillar 621H Scraper Scraper Bowl specifications
Heaped Capacity	24 cu yd
Maximum Apron Closure Force	50,580.00 lbs (22,942.73 kg)
Maximum Apron Opening	69.60 in (176.78 cm)
Maximum Depth Of Cut	12.40 in (31.50 cm)
Maximum Depth Of Spread	21.30 in (54.10 cm)
Maximum Ground Clearance At Cutting Edge	23.40 in (59.44 cm)
Maximum Hydraulic Penetration Force	130,390.00 lbs (59,143.98 kg)
Rated Load	57,600.00 lbs (26,126.95 kg)
Scraper Capacity - Heaped	24 cu yd
Struck Capacity	17.1 cu yd
Thickness - Cutting Edge	0.90 in (2.29 cm)
Width - Cut - Outside Router Bits	123.50 in (313.69 cm)

Service Refill Capacities - Scraper

Caterpillar 621H Scraper Service Refill Capacities - Scraper specifications
Fuel Tank	201.60 gal (763.06 l)
Non-Powered Wheel	1.10 gal (4.16 l)

Service Refill Capacities - Tractor

Caterpillar 621H Scraper Service Refill Capacities - Tractor specifications
Cooling System	17.00 gal (64.35 l)
Differential	45.80 gal (173.35 l)
Engine Crankcase	8.80 gal (33.31 l)
Final Drive - Each	5.00 gal (18.93 l)
Hydraulic Reservoir	22.00 gal (83.27 l)
Transmission	18.50 gal (70.02 l)
Windshield Washer Reservoir	1.30 gal (4.92 l)

Standards

Caterpillar 621H Scraper Standards specifications
Standards	Standards

Steering

Caterpillar 621H Scraper Steering specifications
Steering Angle - Left	82
Steering Angle - Right	85

Tractor Engine

Caterpillar 621H Scraper Tractor Engine specifications
Flywheel Power - Tractor/Scraper	304 kW (407 hp)

Tractor Engine - Prior U.S. Epa Tier 3/Eu Stage Iiia Configuration*

Caterpillar 621H Scraper Tractor Engine - Prior U.S. Epa Tier 3/Eu Stage Iiia Configuration* specifications
Bore	5.10 in (12.95 cm)
Displacement	763.00 cu in (12,503.36 cu cm)
Maximum Power - All Gears - Iso 14396	407.00 hp (303.50 kw)
Maximum Power Reference Engine Speed	1700 rpm
Stroke	6.20 in (15.75 cm)
Tractor Engine	Cat C13 ACERT

Tractor Engine - U.S. Epa Tier 4 Interim/Eu Stage Iiib

Caterpillar 621H Scraper Tractor Engine - U.S. Epa Tier 4 Interim/Eu Stage Iiib specifications
Bore	5.10 in (12.95 cm)
Displacement	763.00 cu in (12,503.36 cu cm)
Maximum Power - All Gears - Iso 14396	407.00 hp (303.50 kw)
Maximum Power Reference Engine Speed	1700 rpm
Stroke	6.20 in (15.75 cm)
Tractor Engine	Cat C13 ACERT

Transmission

Caterpillar 621H Scraper Transmission specifications
1 Forward	3.10 mph (4.99 kph)
2 Forward	5.50 mph (8.85 kph)
3 Forward	7.50 mph (12.07 kph)
4 Forward	10.10 mph (16.25 kph)
5 Forward	13.60 mph (21.89 kph)
6 Forward	18.40 mph (29.61 kph)
7 Forward	24.80 mph (39.91 kph)
8 Forward	33.50 mph (53.91 kph)
Reverse	5.7 mile/h
Top Speed - Loaded	33.50 mph (53.91 kph)

Weights - Machines Achieving Prior U.S. Epa Tier 3/Eu Stage Iiia Emission Levels

Caterpillar 621H Scraper Weights - Machines Achieving Prior U.S. Epa Tier 3/Eu Stage Iiia Emission Levels specifications
Push-Pull - Loaded - Based On A Rated Load	135,597.00 lbs (61,505.84 kg)
Push-Pull - Operating Weight - Full Fuel Tanks	81,996.00 lbs (37,192.81 kg)
Push-Pull - Shipping Weight - 10% Fuel	80,502.00 lbs (36,515.14 kg)
Standard - Loaded, Based On A Rated Load	136,830.00 lbs (62,065.12 kg)
Standard - Operating Weight - Full Fuel Tanks	79,230.00 lbs (35,938.17 kg)
Standard - Shipping Weight - 10% Fuel	77,735.00 lbs (35,260.05 kg)

Weights - Machines Meeting U.S. Epa Tier 4 Interim/Eu Stage Iiib Emission Standards

Caterpillar 621H Scraper Weights - Machines Meeting U.S. Epa Tier 4 Interim/Eu Stage Iiib Emission Standards specifications
Push-Pull - Loaded - Based On A Rated Load	141,141.00 lbs (64,020.56 kg)
Push-Pull - Operating Weight - Full Fuel Tanks	82,541.00 lbs (37,440.01 kg)
Push-Pull - Shipping Weight - 10% Fuel	81,090.00 lbs (36,781.85 kg)
Standard - Loaded, Based On A Rated Load	137,374.00 lbs (62,311.88 kg)
Standard - Operating Weight - Full Fuel Tanks	79,774.00 lbs (36,184.92 kg)
Standard - Shipping Weight - 10% Fuel	78,279.00 lbs (35,506.80 kg)

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