Articulated trucks
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Dozers
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Backhoe Loaders
Hydraulic Mining Shovels
ELECTRIC POWER
MARINE POWER SYSTEMS
INDUSTRIAL
OIL AND GAS
US
METRIC
844
KEY SPECS
- Engine Model Cat® C27
- Net Power - SAE J1349:2011 - Standard Ambient 546kW
- Rated Speed 1800r/min
OVERVIEW
BENEFITS
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IMPROVED EFFICIENCY
- Lock-up torque converter, combined with an on-demand cooling fan and advanced engine idle management, delivers a more smooth shift
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ENHANCED MAINTENANCE
- Service access is conveniently located, helping to reduce maintenance time
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ADDITIONAL SAFETY
- Grouped, ground level engine and machine controls allow for safe and easy daily maintenance
FEATURES AT A GLANCE
Long Term Value and Durability
- The full box-section rear frame resists torsional shock and twisting forces.
- Solid through-width push beams transfer and absorb stresses through a larger portion of the frame.
- Robust structures withstand the toughest conditions and multiple lifecycles to help improve your bottom line.
- Resilient, durable blades are designed with excellent dozing and rolling characteristics.
- Optimized axle mounting helps result in increased structural integrity.
- Castings in the engine and frame are used in high stress areas to spread high loads.
- One-piece castings help enhance strength in key pin areas.
Move More with Less Fuel
- Experience reliable efficiency with complete control over injection timing, duration, and pressure with Mechanically Actuated Electronic Unit Injection (MEUI™).
- World-class Cat planetary powershift transmission features consistent, smooth shifting and efficiency through integrated electronic controls.
- Extended engine life and improved fuel efficiency with reduced rated speed.
- Impeller Clutch Torque Converter (ICTC) and Rimpull Control System (RCS) help provide precise rimpull control.
- Load sensing hydraulic steering system enables precise machine control for easier loading.
- Lock-up torque converter with advanced control of lock-up speed.
- On demand cooling fan helps protect investment and helps lengthen lifecycle.
Safety First
- Battery disconnect, emergency engine shutdown, and stairway light switch are accessed through the ground level power service center.
- Optional Cat Detect with Object Detection System (rearview camera and radar) or Vision (rearview camera) help increase operator awareness around the machine.
- Cab-mounted LED strobes provide warning for others near the machine.
- Wider stairs with reduced stair angles help increase safety for operators.
- Access stairs via a powered platform from cab or ground level and have emergency exit access.
Technology that Gets Work Done
- Integrated technologies assist with monitoring, managing, and enhancing your jobsite operations.
- Product Link™ remote monitoring helps provide valuable insight into machine or fleet performance through the VisionLink® interface, so you can make decisions that boost jobsite efficiency and lower operating costs.
- Vital Information Management System (VIMS™) touchscreen monitor gives access to a wide range of sensor information and enhanced machine data to resolve problems before machine failure.
- Optional Cat Detect technologies help enhance awareness of the environment around the machine for increased safety.
Work In Comfort
- Steering and Transmission Integrated Control System (STIC™) combines directional selection, gear selection, and steering into a single lever, helping to maximize responsiveness and control while reducing operator fatigue.
- Operators can easily enter and exit the cab with fold-up STIC steer/armrest, reduced access stairway angles, and standard stairway lighting.
- Experience reduced vibrations with isolated cab mounts and seat-mounted implement and steering controls.
- Reduced interior sound levels help keep operators comfortable throughout their entire shift.
Reduce Environmental Impact
- Meets U.S. EPA Tier 4 Final emissions standards or equivalent to U.S. EPA Tier 2.
- Automatic Engine Idle Shutdown helps conserve fuel when machine is not in use.
- Generate less waste with maintenance-free batteries.
- Maximize machine life and lower operating costs with Caterpillar Reman and Certified Rebuild programs, which utilize reused or remanufactured components for 40 to 70 percent cost savings.
- Retrofit packages from Caterpillar deliver new features to older machines to get the most from your investment.
Save on Service and Maintenance
- Swing-out fuel, hydraulic oil coolers, and condenser allow for easy access cleanout.
- Machine features ground level or platform access to easily reach daily service points.
- Swing-out doors on either side of the engine compartment help provide easy access to critical daily service checks.
- Optional tire pressure monitoring system provides real-time information to the operator in the cab for optimized tire life.
- Electronics bay is conveniently located inside the cab.
- Sight gauges offer quick visual inspection to help minimize fluid contamination.
- Lighting inside the engine compartment helps improve visibility to service points.
- Ecology drains help prevent spills and allow for easier service.
- 500-hour engine oil and filter change interval with S•O•S oil sampling analysis.
- Service center includes drain and fill, electronic technician connection, and fluid level status.
- Axle oil cooler and Automatic Retarder Control helps prevent unnecessary wear from accelerating down declines.
Purpose-Built Cat Attachments
- Dependable blades are designed for mining with press rib construction and optimized widths and capacities for excellent dozing and rolling.
- Heavy-Duty Semi-U blade includes a Hardox 400 Liner plate, side plates, and additional reinforcements at the bottom of the blade.
- Equipped with the Cat MineStar System, a suite of integrated mine operations and mobile equipment technologies.
- Cat MineStar’s capabilities help manage all aspects of operation.
- Fleet provides remote machine tracking capabilities.
- Terrain for Loading helps enable high precision management of load management.
- Detect assists the operator with areas of limited visibility.
- Health delivers machine condition and operating data and diagnostic tools for a long machine lifecycle.
SPECIFICATIONS
- Engine Model Cat® C27
- Net Power - SAE J1349:2011 - Standard Ambient 546kW
- Rated Speed 1800r/min
- Emissions Option 1 - U.S. EPA Tier 4 Final / EU Stage V
- Engine Power - ISO 14396:2002 586kW
- Gross Power - SAE J1995:2014 597kW
- Net Power - SAE J1349:2011 - High Ambient 508kW
- Emissions Option 2 - China Nonroad Stage III emissions standards, equivalent to U.S. EPA Tier 2
- Engine Power - ISO 14396: 2002 561kW
- Gross Power - SAE J1995:2014 571kW
- Net Power - SAE J1349:2011 - Standard Ambient 521kW
- Net Power - SAE J1349:2011 - High Ambient 483kW
- Bore 137.2mm
- Stroke 152.4mm
- Displacement 27.03l
- Peak Torque - Speed 3557N·m
- Torque Rise 18%
- Note Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake system, exhaust system, and alternator.
- Operating Weight 74883kg
- Blade Capacity Range 15.9m³
- Transmission Type Cat Planetary Power Shift
- Converter Drive - Forward 1 7.3km/h
- Converter Drive - Forward 2 13.3km/h
- Converter Drive - Forward 3 22.9km/h
- Converter Drive - Reverse 1 7.9km/h
- Converter Drive - Reverse 2 14.7km/h
- Converter Drive - Reverse 3 24.9km/h
- Direct Drive - Forward 1 Lock-up disabled
- Direct Drive - Forward 2 13.7km/h
- Direct Drive - Forward 3 24.5km/h
- Direct Drive - Reverse 1 8.7km/h
- Direct Drive - Reverse 2 15.4km/h
- Direct Drive - Reverse 3 26.4km/h
- Note Travel speeds based on 45/65-45 L-5 46 ply tires.
- Output at 2,000 rpm and 6900 kPa (1,000 psi) 311l/min
- Cylinders, Double Acting - Lift, Bore and Stroke 133 mm × 1535 mm (5.25 in × 60.4 in)
- Cylinder, Double Acting - Tilt and Tip, Bore and Stroke 210 mm × 188 mm (8.25 in × 7.4 in)
- Relief Valve Setting - Bulldozer (Large Pump) 18650kPa
- Relief Valve Setting - Tilt Cylinders (Small Pump) 20150kPa
- Steering System - Circuit Pilot, load sensing
- Steering System - Pump Piston, variable displacement
- Minimum Turning Radius - Over Blade 10369mm
- Total Steering Angle 35°
- Maximum Flow 357l/min
- Relief Valve Setting 31000kPa
- Fuel Tank - Standard 1085l
- Cooling System 208l
- Crankcase 76l
- Transmission 110l
- Differential - Final Drives - Front 271l
- Differential - Final Drives - Rear 261l
- Hydraulic System - Implement and Hydraulic Fan 261l
- Hydraulic System - Steering and Braking 132l
- Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1430), the system contains 1.8 kg (3.9 lb) of refrigerant, which has a CO2 equivalent of 2.574 metric tonnes (2.837 tons).
- Front Fixed
- Rear Trunnion
- Oscillation Angle 8.5°
- Brakes Meets ISO 3540:2011
- Operator Sound Pressure Level (ISO 6396:2008) 72dB(A)
- Machine Sound Power Level (ISO 6395:2008) 116dB(A)
- Operator Sound Pressure Level (ISO 6396:2008)* 72dB(A)
- Machine Sound Power Level (ISO 6395:2008)* 114dB(A)
- Note (1) *Sound suppression equipped
- Note (2) The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
- Note (3) The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
- Note (4) Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
- Operator Sound Pressure Level (ISO 6396:2008) 72dB(A)
- Machine Sound Power Level (ISO 6395:2008) 116dB(A)
- Operator Sound Pressure Level (ISO 6396:2008)* 72dB(A)
- Machine Sound Power Level (ISO 6395:2008)* 114dB(A)
- Note (1) *Sound suppression equipped
- Note (2) The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
- Note (3) The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
- Note (4) Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
- ROPS/FOPS ISO 3471:2008 and ISO 3449:2005 Level II Standards
- Height - Top of ROPS 5240mm
- Height - Top of Exhaust Pipe 5049mm
- Height - Top of Hood 3862mm
- Ground Clearance 596mm
- Centerline of Front Axle to Hitch 2300mm
- Centerline of Rear Axle to Edge of Bumper 3795mm
- Wheel Base 4600mm
- Length - With Blade on Ground 11120mm
PRODUCT BROCHURES AND MORE ARE READY TO DOWNLOAD!
Caterpillar product brochures and other informational documents are available for your growing business.
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