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Features
Maximize Output with Ultra‑Class Power
With up to 512 horsepower and an 85+ metric‑ton platform, the 870 P‑Tier is built for large‑scale production, mass excavation, and quarry operations where output is everything.
Tackle the Deepest, Toughest Jobs
Offering digging depths up to ~36 ft. and extended reach, this machine handles deep cuts, heavy loads, and high‑volume material movement with ease.
Keep Crews Productive with Advanced Visibility & Comfort
A spacious cab, integrated camera system, and LED surround lighting support operator awareness and comfort—helping maintain productivity and safety on long, demanding shifts.
Specifications
Powertrain
| Powertrain type | 2-speed propel with AutoShift |
| Maximum travel speed low/slow (mph) | 2 mph |
| Maximum travel speed high/fast (mph) | 2.9 mph |
| Drawbar pull (kg) | 57085 kg |
| Drawbar pull (lb) | 125850 lb. |
Hydraulics
| Hydraulics type | Open center, load sensing; in-cab mode selectors, illuminated: power modes (3), travel modes (2), and work modes (2) |
| Main pump type | Two variable-displacement pumps |
| Number of pumps | 2 |
| Main pump maximum rated flow per pump (gpm) | 150 gpm |
| Pump 2 maximum rated flow per pump (gpm) | 150 gpm |
| Pilot pump number of gears | 1 |
| Pilot pump maximum rated flow (gpm) | 7.9 gpm |
| Pilot pump pressure setting (psi) | 566 psi |
| Implement circuits system operating pressure (psi) | 4627 psi |
| Travel circuits system operating pressure (psi) | 4975 psi |
| Swing circuits system operating pressure (psi) | 4264 psi |
| Power boost system operating pressure (psi) | 4975 psi |
| Controls type | Pilot levers, short stroke, low-effort hydraulic pilot controls with shutoff lever |
Undercarriage
| Number of carrier rollers per side | 3 |
| Number of track rollers per side | 9 |
| Number of shoes per side | 51 |
| Track adjustment type | Hydraulic |
| Track guides | Front and center |
| Track chain type | Sealed and lubricated |
Engine
| Manufacturer | Isuzu |
| Model | 6WG1-FT4 |
| Non-road emission standards | EPA Final Tier 4/EU Stage IV |
| Net power (rpm) | 1800 rpm |
| Net power at net power rpm (ISO 9249) (hp) | 512 hp |
| Cylinders | 6 |
| Displacement (cu in.) | 957 cu in. |
| Off-level capacity (%) | 70 % |
| Off-level capacity (degrees) | 35 degrees |
| Aspiration type | Turbocharged, air-to-air charge-air cooler |
Cylinders
| Cylinders type | Heat-treated, chrome-plated, polished cylinder rods; hardened steel (replaceable bushings) pivot pins |
| Number of boom cylinders | 2 |
| Boom cylinder bore (in.) | 8.5 in. |
| Boom cylinder rod diameter (in.) | 5.9 in. |
| Boom cylinder stroke (in.) | 72.2 in. |
| Number of arm cylinders | 1 |
| Arm cylinder bore (in.) | 8.9 in. |
| Arm cylinder rod diameter (in.) | 6.3 in. |
| Arm cylinder stroke (in.) | 87.6 in. |
| Number of bucket cylinders | 1 |
| Bucket cylinder bore (in.) | 7.9 in. |
| Bucket cylinder rod diameter (in.) | 5.5 in. |
| Bucket cylinder stroke (in.) | 61.2 in. |
Swing Mechanism
| Speed (rpm) | 7.8 rpm |
| Torque (lb-ft) | 198404 lb-ft |
Electrical
| Battery voltage (V) | 12 V |
| Number of batteries | 2 |
| Battery capacity (CCA) | 500 CCA |
| Alternator rating (amp) | 50 amp |
| Work lights | Five halogen (One mounted on frame, two mounted on boom, and two mounted on top of cab) |
Ground Pressure
| 36-in. double bar grouser shoes (psi) | 12 psi |
Refill Capacities
| Fuel tank (gal.) | 293 gal. |
| Cooling system (qt) | 131.2 qt |
| Engine oil with filter (qt) | 60.4 qt |
| Hydraulic tank (gal.) | 528.4 gal. |
| Hydraulic system (gal.) | 275.3 gal. |
| Swing gearbox (qt) | 16.6 qt |
| Pump drive gearbox (qt) | 6.6 qt |
| Travel gearbox (gal.) | 5 gal. |
| Diesel-exhaust fluid (DEF) (qt) | 100.4 qt |
Cooling
| Cooling system type | Cool-on-demand hydraulic-driven, suction-type fan with remote-mounted drive |
Operating weights of optional components with standard counterweight and boom
| Undercarriage with 36-in. double-bar grouser shoes (lb) | 74882 lb. |
| 1-piece boom, with arm cylinder (lb) | 18056 lb. |
| 1-piece boom, with arm cylinder (32 ft. 10 in.) (lb) | 20701 lb. |
| 1-piece boom, with arm cylinder and mass-excavating arm (lb) | 16909 lb. |
| 12-ft, 1-in. arm with bucket and linkage (lb) | 9458 lb. |
| 14-ft, 5-in. arm with bucket and linkage (lb) | 10207 lb. |
| 9-ft, 8-in. arm with bucket and linkage and mass-excavating arm (lb) | 10185 lb. |
| Boom-lift cylinders (2), total weight (lb) | 3748 lb. |
Operating weights of excavator with standard counterweight and boom
| Conditions for measuring operating weights | With full fuel tank; 79-kg (175 lb) operator; 3.49-m3 (4.57 cu yd), 1370-mm (54 in.), 3558-kg (7,845 lb) bucket; 4.4-m (14 ft 5 in.) arm; 12 400-kg (27,337 lb) counterweight; counterweight-removal device; and 900-mm (36 in.) double-bar grouser shoes |
| With 36-in. double-bar grouser shoes (lb) | 188716 lb. |