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Komatsu Wheel Loaders WA200-7

Komatsu Wheel Loaders WA200-7
WA200-7 Wheel Loader

If your operators want lots of power but with complete control in a small package, the WA200-7 is a machine they'll love. Hydrostatic drive gives the WA200-7 the advantage of having a fully automatic drive system without the weight and wear of a torque converter and geared transmission. The result is quick response, lots of power to dig and climb, the ability to control traction level and dynamic braking which saves wear on the wet multi-disc brakes.

Engine
Model Komatsu SAA4D107E-2*
Type Water-cooled, 4-cycle
Aspiration Turbo-charged, after-cooled, cooled EGR
Number of cylinders 4
Bore x stroke 107 mm x 124 mm 4.21" x 4.88"
Piston displacement 4.46 ltr 272 in³
Governor All-speed, electronic
Horsepower:
SAE J1995 / Gross 95.2 kW 128 HP
ISO 9249/SAE J1349 / Net 94 kW 126 HP
Hydraulic fan at maximum speed / Net 91 kW 122 HP
Rated rpm 2000 rpm
Fan drive method for radiator cooling Hydraulic
Fuel system Direct injection
Lubrication system:
Method Gear pump, force-lubrication
Filter Full-flow type
Air cleaner Dry type with double elements and dust evacuator, plus dust indicator
*EPA Tier 4 Interim and EU stage 3B emissions certified
Transmission
Type . . . . . . . Hydrostatic, 1 pump, 2 motors with speed range select
Travel speed
(Measured with 20.5-25 tires):
Both Forward and Reverse
1st 5.2 - 14.3 km/h 3.2 - 8.9 mph
2nd 14.3 km/h 8.9 mph
3rd 23.2 km/h 14.4 mph
4th 38.0 km/h 23.6 mph
Axles and Final Drives
Drive system Four-wheel drive
Front Fixed, semi-floating
Rear Center-pin support, semi-floating, 24° total oscillation
Reduction gear Spiral bevel gear
Differential gear Torque proportioning
Final reduction gear Planetary gear, single reduction
Brakes
Service brakes Hydraulically-actuated, wet disc brakes actuate on four wheels.
Parking brake Wet, multi-disc brake on transfer output shaft.
Secondary brake One of dual service brake circuits is commonly used
Steering System
Type Articulated type, fully-hydraulic power steering
Steering angle 38° each direction (40° to max end stop)
Minimum turning radius at the center of outside tire 4880 mm 16'0"
Hydraulic System
Steering system:
Hydraulic pump Gear type pump
Capacity (at rated rpm) 85 ltr/min 22.5 U.S. gal/min
Relief valve setting 20.6 MPa 210 kgf/cm² 3,000 psi
Hydraulic cylinders:
Type Double-acting, piston type
Number of cylinders 2
Bore x stroke 70 mm x 453 mm 2.76" x 17.8"
Loader control:
Hydraulic pump Gear type pump
Capacity 54 ltr/min 14.3 U.S. gal/min
Relief valve setting 20.6 MPa 210 kgf/cm² 3,000 psi
Hydraulic cylinders:
Type Double-acting, piston type
Number of cylinders bore x stroke bore x stroke
Lift cylinder - 2 125 mm x 673.5 mm 4.9" x 26.5"
Bucket cylinder - 1 130 mm x 493 mm 5.1" x 19.4"
Control valve 2-spool type
Control positions:
Boom Raise, hold, lower, and float
Bucket Tilt-back, hold, and dump
Hydraulic cycle time (rated load in bucket):
Raise 5.7 sec
Dump 1.9 sec
Lower (Empty) 3.2 sec
Service Refill Capacities
Cooling system 24.6 ltr 6.5 U.S. gal
Fuel tank 177.0 ltr 46.8 U.S. gal
Engine 15.5 ltr 4.1 U.S. gal
Hydraulic system 58.0 ltr 15.3 U.S. gal
Axle front 18.5 ltr 4.9 U.S. gal
Axle rear 18.0 ltr 4.8 U.S. gal
Transfer 5.0 ltr 1.3 U.S. gal

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