Introducing the Caterpillar 637E II Scraper, a powerful and versatile machine designed to streamline earthmoving and construction operations. With a heaped capacity of 31 cubic yards and a rated payload of 75,001.3 pounds, this scraper is equipped to handle substantial loads with ease. Featuring a robust hydraulic system, a top speed of 34.1 mph when loaded, and a comprehensive array of specifications for optimal performance, the 637E II is a reliable and efficient solution for any job site. Explore the dimensions, engine power, hydraulic capabilities, operating specifications, and weights of this impressive scraper to learn how it can enhance productivity and efficiency on your next project.
Bowl
Caterpillar 637E II Scraper Bowl specifications
Heaped Capacity
31.00 cu yd (23.70 cu m)
Max Depth of Cut
17.30 in (43.94 cm)
Rated Payload
75,001.30 lbs (34,020.06 kg)
Struck Capacity
21.10 cu yd (16.13 cu m)
Width of Cut
11.60 ft (3.54 m)
Dimensions
Caterpillar 637E II Scraper Dimensions specifications
Bail Length - Maximum (Push-Pull)
76.00 in (193.04 cm)
Front of Tractor to Front Axle
132.30 in (336.04 cm)
Height - Overall Shipping
168.80 in (428.75 cm)
Height - Scraper Blade Maximum
21.50 in (54.61 cm)
Height - Top of Cab
12.20 ft (3.72 m)
Length - Overall Machine
573.50 in (1,456.69 cm)
Overall Height
14.10 ft (4.30 m)
Overall Length
47.80 ft (14.57 m)
Overall Width
13.00 ft (3.96 m)
Rear Axle - Rear of Machine
95.80 in (243.33 cm)
Wheel Base
28.80 ft (8.78 m)
Wheelbase
28.80 ft (8.78 m)
Width - Inside of Bowl
134.00 in (340.36 cm)
Width - Outside Rear Tires
143.00 in (363.22 cm)
Width - Overall Machine
155.00 in (393.70 cm)
Width - Rear Tire Center Lines
97.00 in (246.38 cm)
Width - Tractor
137.00 in (347.98 cm)
Engine
Caterpillar 637E II Scraper Engine specifications
Flywheel Power - Tractor/Scraper
365 kW (490)/186 kW (250)
Scraper Engine
3306
Tractor Engine
Cat 3408E
Hydraulic System
Caterpillar 637E II Scraper Hydraulic System specifications
Apron Cylinder Bore
8.20 in (20.83 cm)
Apron Cylinder Stroke
28.60 in (72.64 cm)
Bowl Cylinder Bore
7.20 in (18.29 cm)
Bowl Cylinder Stroke
34.40 in (87.38 cm)
Compensator Settings - Cushion Hitch Circuit
2300.01 psi
Cushion Hitch Circuit
9.00 gpm (34.07 lpm)
Ejector Cylinder Bore
8.20 in (20.83 cm)
Ejector Cylinder Stroke
74.00 in (187.96 cm)
Relief Valve - Implement Circuit
2000 psi
Relief Valve - Steering Circuit
1960 psi
Scraper Circuit
91.00 gpm (344.44 lpm)
Secondary Steering Circuit
77.00 gpm (291.45 lpm)
Steering Circuit
103.00 gpm (389.86 lpm)
Operating Specifications
Caterpillar 637E II Scraper Operating Specifications specifications
Fuel Capacity
335.00 gal (1,267.98 l)
Rated Load
75,000.00 lbs (34,019.47 kg)
Scraper Capacity - Heaped
50.00 cu yd (38.23 cu m)
Scraper Capacity - Struck
41.00 cu yd (31.35 cu m)
Tire Size
37.25R35 E2/E3
Top Speed - Loaded
34.10 mph (54.88 kph)
Scraper Bowl
Caterpillar 637E II Scraper Scraper Bowl specifications
Apron Closure Force
38,250.00 lbs (17,349.93 kg)
Apron Opening
79.00 in (200.66 cm)
Capacity - Struck
21.00 cu yd (16.06 cu m)
Cutting Edge Thickness
1.70 in (4.32 cm)
Depth of Cut - Maximum
17.20 in (43.69 cm)
Depth of Spread - Maximum
18.90 in (48.01 cm)
Ground Clearance - Maximum
21.50 in (54.61 cm)
Hyd. Penetration Force - 621G
81,000.00 lbs (36,741.03 kg)
Rated Load
75,000.00 lbs (34,019.47 kg)
Scraper Capacity - Heaped
31.00 cu yd (23.70 cu m)
Width - Cut - To Router Bits
138.30 in (351.28 cm)
Scraper Engine
Caterpillar 637E II Scraper Scraper Engine specifications
Bore
4.80 in (12.19 cm)
Displacement
638.00 cu in (10,454.97 cu cm)
Gross Power
250.00 hp (186.43 kw)
Gross Power - Gear 1
270.00 hp (201.34 kw)
Net Power - Gear 1
250.00 hp (186.43 kw)
Stroke
6.00 in (15.24 cm)
Service Refill Capacities - Tractor
Caterpillar 637E II Scraper Service Refill Capacities - Tractor specifications
Cooling System
33.00 gal (124.91 l)
Crankcase
11.70 gal (44.28 l)
Differential
36.00 gal (136.26 l)
Final Drive - Each
7.00 gal (26.50 l)
Hydraulic Reservoir
50.00 gal (189.25 l)
Transmission
33.00 gal (124.91 l)
Wheel Coolant - Each
19.50 gal (73.81 l)
Steering System
Caterpillar 637E II Scraper Steering System specifications
Ground-Driven Secondary Steering System
52.00 gpm (196.82 lpm)
Hydraulic Output
96.20 gpm (364.12 lpm)
Steering Angle - Left
85 degrees
Steering Angle - Right
90 degrees
Width - 180 degrees Turn
40.10 ft (12.22 m)
Tractor Engine
Caterpillar 637E II Scraper Tractor Engine specifications
Bore
5.40 in (13.72 cm)
Caterpillar Net Power
490.00 hp (365.40 kw)
Displacement
1,099.00 cu in (18,009.42 cu cm)
EEC 80/1269
490.00 hp (365.40 kw)
Gross Power
490.00 hp (365.40 kw)
Gross Power - Gears 3-8
515.00 hp (384.04 kw)
ISO 9249
490.00 hp (365.40 kw)
Net Power
450.00 hp (335.57 kw)
Net Power - Gears 1-2
450.00 hp (335.57 kw)
Net Power - Gears 3-8
490.00 hp (365.40 kw)
SAE J1349
485.00 hp (361.67 kw)
Stroke
6.00 in (15.24 cm)
Transmission
Caterpillar 637E II Scraper Transmission specifications
1 Forward
3.40 mph (5.47 kph)
2 Forward
6.20 mph (9.98 kph)
3 Forward
7.60 mph (12.23 kph)
4 Forward
10.30 mph (16.58 kph)
5 Forward
13.80 mph (22.21 kph)
6 Forward
18.70 mph (30.09 kph)
7 Forward
25.20 mph (40.56 kph)
8 Forward
34.10 mph (54.88 kph)
Max Speed Forward
33.00 mph (53.11 kph)
Reverse
6.20 mph (9.98 kph)
Weights
Caterpillar 637E II Scraper Weights specifications
Operating Weight
112,670.00 lbs (51,106.32 kg)
Operating Weight - Loaded - Approximate
113,580.00 lbs (51,519.09 kg)
Total Operating - empty
112,413.80 lbs (50,990.11 kg)
Weights - Standard, Tandem
Caterpillar 637E II Scraper Weights - Standard, Tandem specifications
Front Axle
66,475.00 lbs (30,152.59 kg)
Front Axle Weight - Loaded
91,958.00 lbs (41,711.50 kg)
Rear Axle
46,195.00 lbs (20,953.73 kg)
Rear Axle - Weight - Loaded
95,712.00 lbs (43,414.29 kg)
Scraper Shipping
66,412.00 lbs (30,124.01 kg)
Total Operating - Empty
112,670.00 lbs (51,106.32 kg)
Total Operating - Loaded
187,670.00 lbs (85,125.79 kg)
Total Shipping
110,686.00 lbs (50,206.39 kg)
Tractor Shipping
44,274.00 lbs (20,082.37 kg)
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