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The HD785-8 is a Tier 4 Final compliant rigid frame haul truck with a rated payload of 101.6 US tons designed for high production mining, quarry, and aggregate applications. Oil cooled, multiple-disc brakes on all four wheels provide excellent retarding capability for downhill travel while the Komatsu SAA12V140E-7 engine outputs 1,140 net horsepower for high productivity on grade. The McPherson strut type front suspension allows the HD785-8 to have a tight turning radius of 33’2” for excellent maneuverability when spotting or positioning to dump. Komatsu Traction Control (KTCS) is standard on the HD785-8 and provides optimum traction in various ground conditions. The new cab with upgraded trainer seat keeps operators comfortable throughout long shifts, and access is made simple with the standard diagonal angled stairway. Standard KomVision all around monitoring system provides the operator with a 360-degree bird’s-eye view utilizing a 6-camera system on a dedicated display.
| Body | |
|---|---|
| Cab | Standard—FOPS (ISO 3449 level II), ROPS (ISO 3471) |
| Frame Type | Box-sectioned structure |
| Material | 400 brinell hardness high tensile strength steel |
| Material Thickness | Bottom: 0.75” Front: 0.47” Sides: 0.35” |
| Structure | V-shape body with V-bottom |
| Body Capacity | Struck: 52.3 yd³ Heaped: 78.5 yd³ |
| Dimensions | |
|---|---|
| Weight | 365,967 lbs. |
| Turning Radius | 33’2” |
| Overall Length | 37’0” |
| Overall Width | 14’2” |
| Overall Height | 14’1” |
| Steering Angle | 41° |
| Ratio | Differential-2.944 |
| Planetary | 7.235 |
| Brake Surface | Front-6,075 in² Rear-11,138 in² |
| Target Area | Inside length x width 23'2" x 16'11" |
| Engine/Drivetrain | |
|---|---|
| Transmission | Full-automatic, planetary type Forward: Torque converter drive in 1st gear, direct drive in 1st lockup and all higher gears Reverse: Torque converter drive and direct (lockup) |
| Engine Make | Komatsu |
| Engine Model | SAA12V140E-7 |
| Engine Type | Water-cooled, four-cycle |
| Cylinders | Effective cylinder stroke: --Front Suspension: 1’.06” --Rear Suspension: 5” |
| Horsepower | 1200 HP |
| Bore x Stroke | 5.51”x6.50” |
| Torque | 3739 ft. lbs. |
| Air Cleaner | Dry type with double elements, precleaner and evacuator valve |
| Fuel Tank Capacity | 349.2 US Gallons |
| Speed | 43.4 mph |
| Governor | Electronically controlled |
| Lubrication System | Method: Gear pump, force-lubrication Filter: Full-flow type |
| Number of Cylinders | 12 |
| Aspiration | Turbo-charged, after-cooled, cooled EGR |
| Fuel System | Direct injection |
| Piston Displacement | 1860 in³ |
| Fan Drive Type | Hydraulic |
| Final Drive | Planetary gear |
| Speed Range | Seven speeds forward and two reverse |
| Torque Converter | Three-elements, one-stage, two-phase |
| Operational | |
|---|---|
| Dump Height | 33’1” |
| Brakes | Service: --Front—Fully hydraulic control, caliper disc type --Rear—Fully hydraulic control, oil-cooled multiple-disc type --Parking brake—Spring applied, multiple-disc type --Retarder—Oil-cooled, multiple-disc front and rear brakes act as retarder Secondary: Manual pedal operation when hydraulic pressure drops below the rated level, parking brake is automatically actuated |
| Suspension | McPherson strut type front suspension and four-link type rear axle suspension with independent, hydropneumatics cylinders. |
| Tires | Standard Tire-27.00 R49 |
| Steering | Fully hydraulic power steering with two double-acting cylinders Secondary: Automatic/Manual control |
| Rear Axle | Full-floating |
| Heating System | Exhaust heating |
| Payload Capacity | 101.6 Tons |
| Hoist | Cylinder: Twin, two-stage telescopic type Time: 11.5 seconds |
| Relief Pressure Setting | 2990 PSI |
| Hydraulic System Capacity | 101.7 US Gallons |
| Oscillation | Rear axle: Oil Stopper-5.3°; Mechanical Stopper-6° |
| Shift Control | Electronic shift control with automatic clutch modulation in all gears |
| Lockup Clutch | Wet, multiple-disc clutch |
*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.
*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.
New Equipment Sales only available in assigned territories where Kirby-Smith Machinery, Inc. is a licensed distributor. Not all manufacturer's brands available at each location. Please contact your local Kirby-Smith branch if you have questions regarding availability.
| Main Technical Specifications | |
|---|---|
| MAKE | Komatsu |
| MODEL | HD785-8 |
Do you want to know if renting makes more economical sense?
Call us and find out today.
