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Home / Backhoe Loaders / Caterpillar Backhoe Loaders / Cat 450E

Cat 450E Backhoe Loader

The Caterpillar 450E is a 4WD (4x4) backhoe loader. This model was manufactured from 2007 to 2017. The Cat 450E powerline system components: a 268 cu.in (4.4 L) Caterpillar C4.4 four-cylinder direct injection turbocharged diesel engine with a maximum power of 137 hp (102 kW), and 5x3 Auto Shift transmission with single-stage torque converter.

The maximum travel speed (forward and reverse): 24.9 mph (40.1 km/h) / 17 mph (27.3 km/h). The closed center load sensing hydraulic system used a secondary gear pump with a flow of 51.3 gal/min (194 l/min). The hydraulic system pressure is 245 bar (3550 psi) for loader and 262 bar (3800 psi) for backhoe. The Caterpillar 450E is equipped with 15x19.5 front tyres and 21L-24R4 rear tyres. The wheelbase is 87" (2200 mm).

The loader has a maximum lift height of 11 ft 5 in (3486 mm) at pin and clearance with bucket dumped of 8 ft 8 in (2647 mm). The lift capacity is rated at 8439 lbs (3828 kg) lbs to max height, and bucket's breakout force is 11746 lbs (5340 kg). The 96 in (2430 mm) standard material bucket has a nominal heaped capacity of 38.2 cu.ft (1.09 m3).

The backhoe (extendable stick) work ranges consist of a bucket digging force of 17760 lbs (8073 kg), and dipperstick digging force of 8992 lbs (4087 kg). The maximum digging depth is 21 ft 4 in (6500 mm), and reach from swing pivot is 25 ft 10 in (7884 mm) at ground level. The backhoe is compatible with 18" (455 mm), 24" (605 mm), 30" (760 mm), and 36" (910 mm) buckets.

Engine
Engine Model Caterpillar C4.4
Engine Type 4-cylinder, direct injection turbocharged diesel
Number of Cylinders Inline 4
Displacement, cu in (L) 268 (4.4)
Engine Bore, in (mm) 4.13 (105.0)
Engine Stroke, in (mm) 5.00 (127.0)
Aspiration Turbocharged
Maximum Engine Power, hp (kW) 137.0 (102.0)
Rated Engine Power, hp (kW) 124.0 (92.0)
Rated Engine Speed, rpm 2200
Maximum Torque, Nm (lb-ft) 750 (556)
Torque Speed, rpm 1400
Compression 16.5:1
Emission Level Tier 3
Fuel System Direct Injection
Rotation Counterclockwise
Air Cleaner Dry-type axial seal
Fuel Tank Capacity, gal (L) 38.4 (145.0)
Oil Capacity, qts (L) 9.0 (8.5)
Coolant Capacity, qts (L) 27.1 (25.6)
Electrical System Rating, Volts 12
Battery Rating 880 CCA

Transmission
Transmission Type 5F/3R, Auto Shift
Number of Forward Gears 5
Number of Reverse Gears 3
Torque Converter Single-stage
Torque Converter Ratio 2.38:1
Oil Capacity, qts (L) 22.3 (21.0)
Maximum Forward Speed, mph (kph) 24.9 (40.1)
Maximum Reverse Speed, mph (kph) 17.0 (27.3)

Wheels and Tires
Drive Wheels 4WD 4x4
Steering Configuration Front Steer
Steering System Hydrostatic, Hand Metering Unit
Steering Cylinder One, Double-acting
Steering Cylinder Bore, in (mm) 3.35 (85)
Steering Cylinder Stroke, in (mm) 9.32 (236)
Steering Cylinder Rod Diameter, in (mm) 1.66 (42)
Service Brakes Boosted, outboard, oil-immersed, multiple disc
Parking Brake Mechanical, independent
Front Tire Size 15x19.5 12PR
Rear Tire Size 21L-24R4 18PR
Front Tread, in (mm) 79.7 (2016)
Rear Tread, in (mm) 71.7 (1814)


Hydraulic System
Hydraulic System Type Closed center load sensing
Hydraulic Pump Type Variable displacement piston, secondary gear pump
Hydraulic Pump Flow, gpm (Lpm) 51.3 (194.0)
System Pressure (Loader), Bar (psi) 245 (3550)
System Pressure (Backhoe), Bar (psi) 262 (3800)
Hydraulic System Capacity, gal (L) 26.5 (100.0)

Dimensions and Weight
Wheelbase 87 in (2200 mm)
Transport Length 26 ft 1 in (7916 mm)
Overall Length, (Loader on ground) 26 ft (7913 mm)
Transport Height 13 ft 7 in (4143 mm)
Height (Cab) 113.6 in (2874 mm)
Height (Exhaust) 112.5 in (2845 mm)
Overall Width 96.3 in (2436 mm)
Ground Clearance 12.7 in (322 mm)
Turning Radius 13 ft 9 in (4180 mm)
Weight (Operating) 24100 lbs (10950 kg)
Weight (Maximum) 27060 lbs (12300 kg)

Loader
Bucket Hinge Pin, Maximum Height 11 ft 5 in (3486 mm)
Dump Angle at Full Height 44 degrees
Dump Clearance at Full Height 8 ft 8 in (2647 mm)
Dump Reach at Full Height 33.9 in (858 mm)
Maximum Bucket Rollback at Ground Level 40 degrees
Digging Depth 9.1 in (229 mm)
Maximum Grading Angle 106 degrees
Maximum Operating Height 14 ft 10 in (4512 mm)
Lift Capacity at Maximum Height 8439 lbs (3828 kg)
Breakout Force 11746 lbs (5340 kg)
Tipping Load at Breakout Point 18466 lbs (8376 kg)
Bucket Width, in (mm) 96 (2430)
Bucket Capacity, cu.ft (m3) 38.2 (1.09)
Loader Weight 1526 lbs (692 kg)

Backhoe (Standard Stick)
Maximum Digging Depth 17 ft 3 in (5257 mm)
Digging Depth, 8 ft Flat Bottom 16 ft 2 in (4923 mm)
Digging Depth, 2 ft Flat Bottom 17 ft 2 in (5221 mm)
Reach From Swing Pivot at Ground Line 22 ft 1 in (6701 mm)
Loading Height 14 ft 7 in (4447 mm)
Loading Reach 6 ft 10 in (2091 mm)
Maximum Operating Height 21 ft 5 in (6526 mm)
Swing Arc 175 degrees
Bucket Rotation 198 degrees
Stabilizer Spread (Operating Position) 11 ft 10 in (3614 mm)
Stabilizer Spread (Transport Position) 8 ft (2451 mm)
Digging Force (Bucket Cylinder) 17760 lbs (8073 kg)
Digging Force (Crowd Cylinder) 11802 lbs (5365 kg)

Backhoe (Extendable Stick)
Maximum Digging Depth 21 ft 4 in (6500 mm)
Digging Depth, 8 ft Flat Bottom 20 ft 5 in (6229 mm)
Digging Depth, 2 ft Flat Bottom 21 ft 3 in (6465 mm)
Reach From Swing Pivot at Ground Line 25 ft 10 in (7884 mm)
Loading Height 17 ft 1 in (5206 mm)
Loading Reach 10 ft 2 in (3098 mm)
Maximum Operating Height 24 ft 2 in (7368 mm)
Swing Arc 175 degrees
Bucket Rotation 198 degrees
Stabilizer Spread (Operating Position) 11 ft 10 in (3614 mm)
Stabilizer Spread (Transport Position) 8 ft (2451 mm)
Digging Force (Bucket Cylinder) 17760 lbs (8073 kg)
Digging Force (Crowd Cylinder) 8992 lbs (4087 kg)

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