Caterpillar 844K Large Wheel Dozers
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Caterpillar 844K Large Wheel Dozers Truck Description
The Caterpillar 844K Large Wheel Dozer is engineered for tough, heavy-duty applications in construction, mining, and earthmoving. Built to handle the most challenging jobs, the 844K offers exceptional performance, fuel efficiency, and long-lasting durability.
Key Specifications of Caterpillar 844K Large Wheel Dozers Equipment
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Wheelbase
4600.0 mm
Calculate Caterpillar 844K Large Wheel Dozers Monthly EMI
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Specifications of Caterpillar 844K Large Wheel Dozers
Engine
- Bore 137.2 mm
- Displacement 27.03 L
- Emissions U.S. EPA Tier 4 Final or Tier 2 Equivalent
- Engine Model Cat® C27 ACERT™
- Gross Power 561.0 kW
- Gross Power - ISO 14396 561.0 kW
- Gross Power - SAE J1995 571.0 kW
- Net Power - SAE J1349 521.0 kW
- Peak Torque @ (speed) 3557.0 N·m
- Rated Speed 1800.0 RPM
- Rated Speed - Net Power - SAE J1349 (High Ambient) 483.0 kW
- Rated Speed - Net Power - SAE J1349 (Standard Ambient) 521.0 kW
- Stroke 152.4 mm
- Torque Rise 18.0 %
Weights
- Operating Weight 74883.0 kg
Transmission
- Converter Drive – Forward 1 7.3 km/h
- Converter Drive – Forward 2 13.3 km/h
- Converter Drive – Forward 3 22.9 km/h
- Converter Drive – Reverse 1 7.9 km/h
- Converter Drive – Reverse 2 14.7 km/h
- Converter Drive – 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
Service Refill Capacities
- Cooling System 208.0 L
- Crankcase 76.0 L
- Differentials and Final Drives - Front 271.0 L
- Differentials and Final Drives - Rear 261.0 L
- Fuel Tank - Standard 1085.0 L
- Hydraulic System - Implement and Hydraulic Fan 261.0 L
- Hydraulic System - Steering and Braking 132.0 L
- Transmission 110.0 L
Axles
- Front Fixed
- Oscillation Angle 8.5 Degrees
- Rear Trunnion
Brakes
- Brakes Meets ISO 3540:2011
Dimensions (Approximate)
- Center Line of Front Axle to Hitch 2300.0 mm
- Center Line of Rear Axle to Edge of Bumper 3795.0 mm
- Ground Clearance 596.0 mm
- Height to Top of Exhaust Pipe 5049.0 mm
- Height to Top of Hood 3862.0 mm
- Height to Top of ROPS 5240.0 mm
- Length with Blade on Ground 11120.0 mm
- Wheelbase 4600.0 mm
Cab
- Air Conditioning Standard air conditioning system contains environmentally friendly R134a refrigerant
- Cab - ROPS/FOPS Cat cab with separate ROPS/FOPS is standard in North America, Europe and Japan.
- Cab – ROPS/FOPS SAE J11040 APR88, ISO 3471:2008, ISO 3471:1994
- FOPS FOPS meets SAE J231 JAN81 and ISO 3449:1992 Level II criteria.
- ROPS ROPS meets SAE J11040 APR88, ISO 3471:2008 and ISO 3471:1994 criteria.
Blades
- Blade Capacity Range 15.9-30.7 m3 (20.7-40.2 yd3)
HYDRAULIC SYSTEM - LIFT/TILT
- Cylinder, 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)
- Output at 2,000 rpm and 6900 kPa (1,000 psi) 311.0 L/min
- Relief Valve Setting - Bulldozer (Large Pump) 18650.0 kPa
- Relief Valve Setting - Tilt Cylinders (Small Pump) 20150.0 kPa
HYDRAULIC SYSTEM - STEERING
- Maximum Flow 357.0 L/min
- Minimum Turning Radius (over blade) 10369.0 mm
- Relief Valve Setting 31000.0 kPa
- Steering System - Circuit Pilot, load sensing
- Steering System - Pump Piston, variable displacement
- Total Steering Angle 35.0 Degrees
SOUND PERFORMANCE - STANDARD
- Machine Sound Level (ISO 6395:2008) 115.0 dB(A)
- Operator Sound Level (ISO 6396:2008) 69.0 dB(A)
SOUND PERFORMANCE - SUPPRESSION
- Machine Sound Level (ISO 6395:2008) 113.0 dB(A)
- Operator Sound Level (ISO 6396:2008) 69.0 dB(A)
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Frequently Asked Questions
The Caterpillar 844K Large Wheel Dozer is engineered to handle tough, heavy-duty tasks across several sectors. Its design makes it suitable for challenging jobs in construction, mining, and general earthmoving applications, offering exceptional performance and durability.
The equipment is powered by a Cat® C27 ACERT™ engine. Key power metrics include a Gross Power of 561.0 kW (ISO 14396) and a Net Power of 521.0 kW (SAE J1349). It also features a peak torque of 3557.0 N·m.
The Caterpillar 844K has various dimensions, including an approximate wheelbase of 4600.0 mm and a ground clearance of 596.0 mm. Its overall length with the blade on the ground is approximately 11120.0 mm.
The hydraulic system manages several key functions. The Lift/Tilt system uses a double-acting cylinder with specific bore and stroke dimensions, while the Steering system operates with a circuit pilot, load sensing pump piston, and offers 35.0 degrees of total steering angle.
Yes, the dozer is designed with worker safety in mind. The cab can feature standard ROPS or FOPS, which meet various international standards (e.g., SAE J11040 and ISO 3471). Furthermore, it includes a standard air conditioning system using R134a refrigerant.
For Sound Performance - Standard, the Machine Sound Level is listed as 115.0 dB(A) and the Operator Sound Level is 69.0 dB(A). With Suppression, the Machine Sound Level slightly decreases to 113.0 dB(A), while the Operator Sound Level remains at 69.0 dB(A).
