Komatsu 860E-1K

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Features

The 860E-1K utilizes Komatsu Drive with Siemens AC control and liquid cooled Insulated Gate Bipolar Transistor (IGBT) inverter system for the highest available reliability. Hill Start allows the operator to start on a grade without roll back. Traction control assists the operator to power through wet sloppy underfoot condition. Oil cooled multi-disc brakes and retarder give the operator confidence in his control and stopping ability, especially when fully loaded. A front mounted elevating pantagraph can be mounted to allow the 860E-1K to utilize electrified overhead trolley lines.

Specifications

Engine    
     
Make and model   Komatsu SSDA16V160*
Fuel   Diesel
Number of cylinders   16
Operating cycle   4 cycle
**Rated brake power @ 1900 rpm 2,700 HP 2014 kW
***Flywheel power @ 1900 rpm 2,550 HP 1902 kW
Weight (wet) 21,182 lb 9608 kg
* Tier 2 emissions compliant. Tier 1 emissions engine is optional outside of North America.    
** Rated brake power is the output of the engine as installed in this machine, at governed rpm and with engine manufacturer’s approved fuel setting. Accessory losses included are water pump, fuel pump and oil pump    
***Flywheel power is the rated power at the engine flywheel minus the average accessory losses. Accessories include fan and charging alternator. Rating(s) represent gross engine performance accordance with SAE J1349 conditions.    
     
Electric Drive    
     
*Wheel motor application depends upon gross vehicle weight, haul road grade, haul road length, rolling resistance and other parameters. Komatsu and G.E. must analyze each job condition to assure proper application.    
*Optional ratios available.     
     
AC/DC CURRENT    
Alternator   GTA-41
Dual impeller in-line blower 12,000 cfm 340 m³/min
Control   AC Torque Control System
Motorized wheels*   GDY106 Induction Traction Motors
Ratio*   32.62:1
Speed (maximum) 40 mph 64.5 km/h
     
Tires and Rims    
     
*Tires should meet application requirements for tkph/tmph, tread, compound, inflation pressure, ply rating or equivalent, etc.     
     
Rock service, tubeless, radial tires    
Standard tire*   53/80 R63
Taper lock, five (5) piece rim   36'' x 63'' x 5.0'' / 914 mm x 1600 mm x 127 mm rim assembly. Rims rated at 758 kPa 110 psi cold inflation pressure.
Typical tire weight 57,600 lb 26127 kg
     
Body    
     
All-welded steel flat floor body with horizontal bolsters and full canopy. Eyebrow, rear wheel rock ejectors, body tilt cable, and rubber mounts on frame are standard. Pivot exhaust heating optional.    
Floor sheet     
200,000 psi / 1379 mPa tensile strength steel (two-piece) 0.63'' 16 mm
Front sheet    
200,000 psi / 1379 mPa tensile strength steel 0.35'' 9 mm
Side sheet    
200,000 psi / 1379 mPa tensile strength steel 0.31'' 8 mm
Canopy sheet    
100,000 psi / 690 mPa 0.19'' 5 mm
Struck 224 yd³ 171 m³
Standard SAE heaped 2:1 276 yd³ 211 m³
Standard Komatsu body weight 66,936 lb 30362 kg
*Komatsu must approve all bodies through a Body Application Worksheet.    
Cab    
     
Advanced Operator Environment with integral 4-post ROPS/FOPS structure (meets J1040 Apr88), adjustable air suspension seat w/lumbar support and arm rests, passenger seat, maximum R-value insulation, tilt and telescoping steering wheel, electric windshield wipers w/washer, tinted safety glass, power windows, Komatsu Payload Weighing System, 55,000 Btu/hr heater and defroster, 21,600 Btu/hr air conditioning (HFC - 134A refrigerant).    
     
Frame    
     
Advanced technology, full butt-welded box sectional ladder-type frame with integral ROPS supports, integral front bumper, rear tubular cross members, steel castings at all critical stress transition zones, rugged continuous horsecollar.    
Plate material    
tensile strength steel 70,000 psi 482.6 mPa
Casting material    
tensile strength steel 90,000 psi 620.5 mPa
Rail width 12'' 305 mm
Rail depth (minimum) 34'' 864 mm
Top and bottom plate thickness 1.77'' 45 mm
Side plate thickness 0.98'' 25 mm
Drive axle mounting   Pin and spherical bushing
Drive axle alignment   Swing link between frame and axle
Braking System    
     
Service brakes: oil-cooled, hydraulic-actuated, multiple disc brakes at each wheel. Traction system wheel slip/slide control.    
     
Max. service apply pressure 2500 psi 17237 kPa
Total friction area per brake 15,038 in² 97025 cm²
Emergency brakes   Automatically applied prior to hydraulic system pressure dropping below level required to meet secondary stopping requirements.
Wheel brake locks   Switch activated
Parking brakes   Multiple disc, spring-applied, hydraulically-released, dry brakes on inboard end of each wheel motor rotor shaft. Rated to hold on ±15% grade @ maximum gross vehicle weight.
Electric dynamic retarder:    
Max 5400 hp 4026 kW
Continuous 3300 hp 2460 kW
Continuously rated high-density blown grids w/retard capacity at low speeds and retard in reverse propulsion.    
     
Suspension    
     
Variable rate hydro-pneumatic with integral rebound control    
     
Max. front stroke 12.92'' 328 mm
Max. rear stroke 9.40'' 239 mm
Max. rear axle oscillation   ±6.5°
     
Cooling System    
     
L&M radiator assembly, split-flow, with deareation-type top tank.     
     
Radiator frontal area 75.5 ft² 7.02 m²
     
Service Capacities    
     
Cooling System 157 U.S. gal 594 L
Crankcase* 74 U.S. gal 280 L
Hydraulic system 350 U.S. gal 1325 L
Motor gear box (each) 25 U.S. gal 95 L
Fuel 1200 U.S. gal 4542 L
*Includes lube oil filters    
Hydraulic System    
     
Steering   Accumulator assisted twin double acting cylinders provide constant rate steering. Emergency steering automatically applied by accumulator.
Turning circle diameter (SAE) 97'7'' 29.7 m
Reservoir 250 U.S. gal 947 L
Filtration   In-line replaceable elements
Suction   Single, full flow, 100 mesh
Hoist and steering   Dual, in-line, high pressure
Brake component cabinet   Above deck, easily accessible with diagnostic test connections
Hoist   Two 3-stage dual-acting outboard cylinders, internal cushion valve, over-center dampening
Hoist times:    
Power-up loaded   21 sec
Power-down   23 sec
Float-down empty   24 sec
Pumps   Two pumps, single package, end of alternator
Hoist and brake cooling   Tandem gear pump with output of 1022 lpm / 270 gpm at 1900 rpm and 17237 kPa / 2,500 psi
Steering and brake   Pressure-compensating piston pump with output of 246 lpm / 65 gpm at 1900 rpm and 18961 kPa / 2,750 psi
System relief pressures:    
Hoist and brake cooling 2,500 psi 17237 kPa
Steering and brake 4,000 psi 27579 kPa
Quick disconnects standard for powering disabled truck and for systems diagnostics.    
Electric System    
     
4 x 8D 1450 CCA, 12 volt, in series/parallel, 220-ampere-hour batteries, bumper-mounted with disconnect switch and lockout.    
     
Alternator   24 volt, 260 amp
Lighting   24 volt
Cranking motors   Two/24 volt
     
Weight Distribution    
     
Empty vehicle weight (wet, 100% fuel, no options, std Komatsu body, std tires):    
Front axle / 47% 219,826 lb 99711 kg
Rear axle / 53% 243,557 lb 110476 kg
Total EVW 463,383 lb 210187 kg
Gross vehicle weight (Nominal):    
Front axle / 33% 365,201 lb 165651 kg
Rear axle / 67% 741,469 lb 336323 kg
Total 1,106,670 lb 501974 kg
Nominal payload* 643,287 lb 291790 kg
320 U.S. ton    
*Nominal payload is defined by Komatsu America Corp. payload policy documentation. In general, the nominal payload must be adjusted for the specific vehicle configuration and site application. The figures above are provided for basic product description purposes. Please contact your Komatsu distributor for specific application requirements.  

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