Incarcatoare frontale de talie mare
Pret la cerere
Cat Large Wheel Loaders are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to move more material efficiently and safely at a lower cost per ton. The Cat 990 Wheel Loader has been a proven performer in mines, quarries and industrial applications around the world. The 990K brings all new levels of performance, safety, operator comfort and efficiency.
Descriere
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Engine
| Net Power | 521 kW |
| Engine Model | C27 Cat® |
| Bore | 137.2 mm |
| Stroke | 152.4 mm |
| Displacement | 27.03 l |
| Torque Rise | 18 % |
| Rated Speed | 1,800/min |
| Rated Speed - Net Power - SAE J1349 - Standard Ambient | 521 kW |
| Rated Speed - Net Power - SAE J1349 - High Ambient | 483 kW |
| Rated Speed - Gross - SAE J1995 | 571 kW |
| Net Power - SAE J1349 | 521 kW |
| Emissions | U.S. EPA Tier 4 Final OR Tier 2 Equivalent |
| Rated Speed - Gross - ISO 14396 | 561 kW |
| Gross - ISO 14396 | 561 kW |
| Peak Torque - 1,200 rpm | 3557 N·m |
Operating Specifications
| Operating Weight | 80974 kg |
| Bucket Capacity Range | 8,6 m³ – 10,0 m³ (11,25 yd.³ – 13,0 yd.³) |
| Rated Payload - Standard (Face Material) | 15.9 t |
| Rated Payload - Standard (Loose Material) | 20 t |
| Rated Payload - High Lift (Loose Material) | 20 t |
| Cat Truck Match - High Lift | 775-777 |
| Rated Payload - High Lift | 15.9 t |
| Rated Payload - Standard | 15.9 t |
| Rated Payload - High Lift (Face Material) | 15.9 t |
| Cat Truck Match - Standard | 773-775 |
Buckets
| Bucket Capacities | 7,4-14,9 m³ (9,7-19,5 yd.³) |
Transmission
| Transmission Type | Cat-Planetenlastschaltgetriebe |
| Forward - 1 | 7.3 km/h |
| Forward - 2 | 13.3 km/h |
| Forward - 3 | 22.9 km/h |
| Reverse - 1 | 7.9 km/h |
| Reverse - 2 | 14.7 km/h |
| Reverse - 3 | 24.9 km/h |
| Direct Drive - Forward 1 | Lock-up disabled |
| Direct Drive - Forward 2 | 13.7 km/h |
| Direct Drive - Forward 3 | 24.5 km/h |
| Direct Drive - Reverse 1 | 8.7 km/h |
| Direct Drive - Reverse 2 | 15.4 km/h |
| Direct Drive - Reverse 3 | 26.4 km/h |
| Note | Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. |
Axles
| Front | Fixed |
| Rear | Trunnion |
| Oscillation Angle | 8.5° |
Hydraulic Cycle Times
| Raise | 8.2 s |
| Dump | 2.9 s |
| Lower Float Down | 3.6 s |
| Lower | 3.7 s |
| Total Hydraulic Cycle Time - Empty Bucket | 13.8 s |
| Rack Back | 4.3 s |
Service Refill Capacities
| Fuel Tank | 1114 l |
| Cooling System | 208 l |
| Transmission | 110 l |
| Hydraulic Tank - Implement and Hydraulic Fan | 261 l |
| Differential - Final Drives - Rear | 261 l |
| Differential - Final Drives - Front | 271 l |
| Hydraulic Tank - Steering and Braking | 132 l |
| Engine Crankcase | 75.7 l |
| Hydraulic System Factory Fill | 795 l |
| Note | All nonroad U.S. EPA Tier 4 diesel engines are required to use only Ultra Low Sulfur Diesel (ULSD) fuels containing 15 ppm (mg/kg) sulfur or less. Biodiesel blends up to B20 (20% blend by volume) are acceptable when blended with 15 ppm (mg/kg)... |
Hydraulic System - Lift/Tilt
| Pilot System | Open loop and pressure reducing |
| Maximum Flow at 1,800 rpm (1) | 817 l/min |
| Cylinders, Double Acting - Lift, Bore and Stroke | 235 mm × 1287 mm (9.3 in × 50.7 in) |
| Relief Valve Setting - Lift/Tilt | 33000 kPa |
| Maximum Flow at 1,800 rpm (2) | 84 l/min |
| Relief Valve Setting | 3500 kPa |
| Lift/Tilt System - Circuit | Positive flow control |
| Cylinders, Double Acting - Tilt, Bore and Stroke | 292.1 mm × 820 mm (11.5 in × 32.3 in) |
| Lift/Tilt System | Variable displacement piston |
Sound Performance - Suppression
| Operator Sound Level (ISO 6396:2008) | 69 dB(A) |
| Machine Sound Level (ISO 6395:2008) | 113 dB(A) |
Sound Performance - Standard
| Machine Sound Level (ISO 6395:2008) | 115 dB(A) |
| Operator Sound Level (ISO 6396:2008) | 69 dB(A) |
Hydraulic System - Steering
| Total Steering Angle | 70° |
| Steering System - Pump | Piston, variable displacement |
| Steering System - Circuit | Pilot, load sensing |
| Steering | ISO 5010: 2007 |
| Relief Valve Setting - Steering | 32000 kPa |
| Maximum Flow at 1,400 rpm | 358 l/min |
Operator's Cab
| ROPS/FOPS | ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards |
Brakes
| Brakes | ISO 3450: 2011 |