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Home / Wheel Loaders / Kubota Wheel Loaders / Kubota R640

Kubota R640 Specifications

The Kubota R640 wheel loader driveline system components: Kubota V2607-CR-TE5-WL four-cylinder turbocharged liquid-cooled diesel engine with a rated power of 61.2 hp (45.6 kW), and hydrostatic transmission. The hydraulic system has a pump with a rated capacity of 17.8 gal/min (67.2 l/min). The system relief pressure is 2975 psi (209 bar). The Kubota R640 is equipped with a hydrostatic power steering, wet disc brakes, and 405/70R18 tires. The wheel loader has a maximum lift height of 128.2" (3255 mm) and bucket breakout force of 8525 lbs (3875 kg). The rated operating capacity is 3880 lbs (1760 kg), and tipping load is 7760 lbs (3520 kg).

Engine Specs

Engine Model ....................... Kubota V2607-CR-TE5-WL
Engine Type ....................... Vertical 4-cylinder liquid-cooled diesel
Number of Cylinders ....................... Four
Displacement, cu.in (L) ....................... 159 (2.62)
Cylinder Bore, in (mm) ....................... 3.43 (87.0)
Piston Stroke, in (mm) ....................... 4.33 (110.0)
Aspiration Type ....................... Turbocharged
Rated Engine Power, hp (kW) ....................... 61.2 (45.6)
Rated Engine Speed, rpm ....................... 2400
Low Idle Speed, rpm ....................... 1175
High Idle Speed, rpm ....................... 2800
Compression Ratio ....................... 19:1
Firing Order ....................... 1-3-4-2
Fuel System ....................... Common rail direct injection
Lubricating System ....................... Pressure lubrication by gear pump
Cooling System ....................... Forced circulation with water pump
Air Cleaner Type ....................... Cartridge, dry element
Emission Level ....................... Tier 4 Final
Fuel Tank Capacity, gal (L) ....................... 18.5 (70.0)
Oil Capacity, qts (L) ....................... 9.5 (9.0)
Coolant Capacity, qts (L) ....................... 12.4 (11.7)
Electrical System Rating, Volts ....................... 12
Charging System ....................... Alternator
Alternator Rating, Amps ....................... 90

Transmission

Transmission Type ....................... Hydrostatic, 2-range
Number of Forward Gears ....................... Infinite
Number of Reverse Gears ....................... Infinite
Forward Speed (Low), mph (kph) ....................... 3.1 (5.0)
Forward Speed (High), mph (kph) ....................... 12.4 (20.0)
Reverse Speed (Low), mph (kph) ....................... 3.1 (5.0)
Reverse Speed (High), mph (kph) ....................... 12.4 (20.0)

Wheels and Tires

Drive System Type ....................... Four-wheel drive (4WD)
Steering Configuration ....................... Articulated frame
Steering System ....................... Hydrostatic power
Service Brakes Type ....................... Wet disc
Front Tire Size (Std) ....................... 405/70R18
Rear Tire Size (Std) ....................... 405/70R18
Front Tire Size (Opt) ....................... 365/70R18
Rear Tire Size (Opt) ....................... 365/70R18

Hydraulic System

Hydraulic System Type ....................... Open center
Hydraulic Pump Type ....................... Gear
Pump Capacity, gpm (Lpm) ....................... 17.8 (67.2)
System Pressure, psi (Bar) ....................... 2975 (209)
Hydraulic Tank Capacity, gal (L) ....................... 10.3 (39.0)
Hydraulic System Capacity, gal (L) ....................... 15.0 (57.0)

Loader Performance

Rated Operating Capacity (Straight, Cab), lbs (kg) ....................... 3880 (1760)
Rated Operating Capacity (Straight, Canopy), lbs (kg) ....................... 3725 (1690)
Rated Operating Capacity (Full Turn, Cab), lbs (kg) ....................... 3405 (1545)
Rated Operating Capacity (Full Turn, Canopy), lbs (kg) ....................... 3265 (1480)
Tipping Load (Straight, Cab), lbs (kg) ....................... 7760 (3520)
Tipping Load (Straight, Canopy), lbs (kg) ....................... 7450 (3380)
Tipping Load (Full Turn, Cab), lbs (kg) ....................... 6810 (3090)
Tipping Load (Full Turn, Canopy), lbs (kg) ....................... 6530 (2960)
Lift Capacity, lbs (kg) ....................... 7810 (3550)
Breakout Force, lbs (kg) ....................... 8525 (3875)

Dimensions and Weight

Operating Height (Fully Raised), in (mm) ....................... 158.3 (4020)
Maximum Lift Height (Bucket Hinge Pin), in (mm) ....................... 128.2 (3255)
Height To Top Of Cab, in (mm) ....................... 98.4 (2500)
Height To Top Of Canopy, in (mm) ....................... 97.6 (2480)
Length With Bucket On Ground, in (mm) ....................... 215.7 (5480)
Width (Tread Center), in (mm) ....................... 55.1 (1400)
Width (Over Tires), in (mm) ....................... 71.1 (1805)
Wheel Base, in (mm) ....................... 78.8 (2000)
Ground Clearance, in (mm) ....................... 13.4 (340)
Articulation Angle, deg ....................... 40
Bucket Width, in (mm) ....................... 72 (1830)
Bucket Capacity, cu.ft (m3) ....................... 27.2 (0.77)
Dump Angle At Full Height, deg ....................... 45
Rollback Angle At Ground, deg ....................... 50
Digging Depth, in (mm) ....................... 4.3 (110)
Clearance With Bucket Dumped, in (mm) ....................... 93.9 (2385)
Reach At Full Height, in (mm) ....................... 32.5 (825)
Turning Circle (w/Bucket), in (mm) ....................... 285 (7235)
Operating Weight (Cab), lbs (kg) ....................... 11565 (5245)
Operating Weight (Canopy), lbs (kg) ....................... 11175 (5070)

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WHEEL LOADERS SPECIFICATIONS

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