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The Cat® 789 Mining Truck is the most popular 193-tonne (213-ton) truck in the mining industry — and for good reason. Developed specifically for high-production mining applications, the 789 simply does its job, no matter the application or conditions. It continues a legacy of durability and reliability while meeting emission standards for any location in the world. It uses less fuel, has expanded safety options and reduces maintenance downtime. It offers fast speed on grade and a high production capability thanks to a payload advantage over the competition. More than 30 new features improve performance and keep operators safe, comfortable and in control. The 789 offers the lowest cost per ton in its size class and high reliability — reducing overall owning and operating costs.
Descriere
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Engine
| Gross Power - SAE J1995:2014 | 1566 kW |
| Engine Model | Cat® 3516E |
| Net Power - SAE J1349:2011 | 1473 kW |
| Rated Speed | 1650 r/min |
| Emissions Rating | Fuel Optimized |
| Bore | 170 mm |
| Stroke | 215 mm |
| Displacement | 7.8 l |
| Note (1) | Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. |
| Note (2) | Optional 1417 kW / 1,900 HP engine rating. |
| Note (3) | U.S. EPA Tier 4 Final / EU Stage V optional engine available for applicable markets. |
Weights - Approximate
| Rated Gross Machine Weight | 324318 kg |
| Body Weight | 27400 kg |
| Note (1) | Consult your tire manufacturer for maximum tire load |
| Note (2) | Chassis weight with full fuel and fluids, standard and mandatory attachments, hoist, body mounting group, rims, and tires. |
| Nominal Rated Payload | 193 t |
Weight Distributions - Approximate
| Front Axle - Empty | 50% |
| Rear Axle - Loaded | 67% |
| Rear Axle - Empty | 50% |
| Front Axle - Loaded | 33% |
Final Drives
| Planetary Ratio | 10.83:1 |
| Total Reduction Ratio | 25.46:1 |
| Type | Double reduction, planetary with full floating axles |
| Differential Ratio | 2.35:1 |
Transmission
| Forward - 1 | 12.6 km/h |
| Forward - 2 | 17.1 km/h |
| Forward - 3 | 23.1 km/h |
| Forward - 4 | 31.2 km/h |
| Forward - 5 | 42.3 km/h |
| Forward - 6 | 57.2 km/h |
| Reverse | 11.8 km/h |
| Top Speed - Loaded | 57.2 km/h |
Tires
| Standard Tires | 37 R57 |
| Optional Tires | 40 R57 |
| Optional Tire | 42/90 R57 |
| Rims | 29” x 57” Rims |
| Note (1) | Quick Change Rims optional |
| Note (2) | Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. |
Braking System
| Service Brakes | Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated |
| Front Wet Disc Brake Surface Area | 81693 cm² |
| Rear - Wet Disc Brake Surface Area | 134590 cm² |
| Standards | (Service and Secondary) ISO 3450:2011 |
| Parking Brake | Four-corner, Multi-disc, Spring applied, Hydraulically Released |
Capacity - HP Body - 100% Fill Factor
| Struck | 77 m3(101 yd3) |
| Heaped (SAE 2:1)* | 143 m3(187 yd2) |
| Note (1) | Consult your local Cat dealer for body recommendations |
Body Hoists
| Type | Twin, two-stage hydraulic cylinders with snubbing valve. |
| Pump Flow - High Idle | 403 l/min |
| Relief Valve Setting - Raise | 18950 kPa |
| Body Raise Time - High Idle | 14 s |
| Body Lower Time - Float | 16 s |
Suspension
| Type | Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top and bottom double shear clevis attachments |
| Effective Cylinder Stroke - Front | 104.65 mm |
| Effective Cylinder Stroke - Rear | 93.22 mm |
| Rear axle - Oscillation | +/- 5 degrees |
Service Refill Capacities
| Fuel Tank - Standard | 2500 l |
| Fuel Tank | 4546 l |
| Fuel Tank (Tier 4) | 2500 l |
| Diesel Exhaust Fluid Tank | 233 l |
| Cooling System | 679 l |
| Crankcase | 291 l |
| Front Wheels - Each | 22 l |
| Differentials | 610 l |
| Steering System | 160 l |
| Steering System - Includes Tank | 175 l |
| Brake Hoist System | 640 l |
| Brake Hoist System - Includes Tank | 1315 l |
| Torque Converter - Transmission System - Including Sump | 209 l |
Cab
| Air Conditioning | (HFC - 134A refrigerant) 24,500 Btu/hr |
| Heater / Defroster | 33300 Btu/h |
| ROPS Standards (1) | The operator sound pressure level, 77 dB(A) with direct drive and 75 dB(A) with optional clutch, tested to ISO 6396:2008. |
| ROPS Standards (2) | ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer. |
| FOPS Standards | FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer. |
Steering
| Steer Angle | 36.07 ° |
| Steering Standards | ISO 5010:2007 |
Dimensions (Approximate)
| Height - Top of ROPS | 18.25 ft |
| Overall Body Length | 42.5 ft |
| Inside Body Length | 28.67 ft |
| Overall Length | 42.58 ft |
| Wheel Base | 18.67 ft |
| Rear Axle - Tail | 12.67 ft |
| Ground Clearance | 4.25 ft |
| Dump Clearance | 5.17 ft |
| Loading Height - Empty | 20.17 ft |
| Rear Sidewall Height | 3.33 ft |
| Inside Body Depth - Maximum | 10.08 ft |
| Overall Height - Body Raised | 37.83 ft |
| Operating Width | 25.67 ft |
| Centerline Front Tire Width | 17.75 ft |
| Engine Guard Clearance | 4.25 ft |
| Overall Canopy Width | 25.5 ft |
| Outside Body Width | 23.33 ft |
| Inside Body Width | 22.67 ft |
| Front Canopy Height | 22.08 ft |
| Rear Axle - Clearance | 4.17 ft |
| Centerline of Rear Dual Tire Width | 15.42 ft |
| Overall Tire Width | 23.33 ft |