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844H

Wheel Dozers

The Cat® 844H Wheel Dozer continues the Caterpillar tradition with its power, mobility, operator comfort and blade selection that allows you to get the job done quickly and economically. The 844H is ideally suited for the rugged duties associated with mining, quarries and utilities.

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Engine Model Cat® C27 ACERT®
Gross Power 512 kW
Net Power 468 kW
Bore 137 mm
Availability Contact Dealer
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844H
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FEATURES & BENEFITS

Productivity

EngineThe Cat® C27 engine with ACERT® Technology is U.S. EPA Tier 3 and EU Stage III compliant. It features increased horsepower and efficient fuel management for quick r... Read more

Fuel Efficiency

Engine Idle ShutdownThis new feature will automatically shutdown the engine after the machine has been in a safe idling state for an extended amount of time. The operator... Read more

Reliability

StructuresCombining the use of robotic welding and castings in critical high stress areas, more than 90 percent of the machine structure is robotically welded to provide... Read more

Operator Comfort

Best-in-Class Working EnvironmentA comfortable operator is a productive operator, which is why Caterpillar has designed the 844H with a best-in-class working environment... Read more

Serviceability

The 844H is designed to ensure minimal downtime through ground level or platform access, grouped service points, and attention to key serviceable areas on the machine. M... Read more

Sustainability

Protecting the EnvironmentWith the 844H having a long legacy, it is only fitting this machine has features and services that show environmental responsibility. Maintenan... Read more

Safety

At Caterpillar, we have designed the 844H with your most important asset in mind - People. Drawing from a history of technological advancements and practical wisdom, you... Read more

Technology Solutions

Cat Product LinkCat® Product Link enables convenient, remote monitoring of equipment. Get usable information to keep jobs on schedule, maintain machine health and reduce... Read more

Customer Support

Commitment to Meet Your NeedsCat dealer 24/7 support offers solutions, services and products to help lower costs, enhance productivity and manage your fleet anywhere in t... Read more

SPECIFICATIONS FOR 844H

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Engine
Engine Model Cat® C27 ACERT®
Gross Power 512 kW
Net Power 468 kW
Bore 137 mm
Stroke 152 mm
Displacement 27.1 l
Cylinders 12
Torque Rise 31 %
Net Power - SAE J1349 (JAN90) 463 kW
Net Power - EEC 80/1269 468 kW
Net Power - ISO 9249 468 kW
Net Power - ISO 14396 499 kW
Net Power - DIN 70020 650 PS
Weights
Operating Weight 70815 kg
Transmission
Converter Drive - Forward 1 7 km/h
Converter Drive - Forward 2 12.2 km/h
Converter Drive - Forward 3 21 km/h
Converter Drive - Reverse 1 7.7 km/h
Converter Drive - Reverse 2 13.4 km/h
Converter Drive - Reverse 3 23 km/h
Direct Drive - Forward 1 7.2 km/h
Direct Drive - Forward 2 12.8 km/h
Direct Drive - Forward 3 22.5 km/h
Direct Drive - Reverse 1 7.9 km/h
Direct Drive - Reverse 2 14.1 km/h
Direct Drive - Reverse 3 24.8 km/h
Number of Forward Speeds 3
Number of Reverse Speeds 3
Hydraulic System
Output at 2,040 rpm and 6900 kPa (1,000 psi) 311 l/min
Cylinder, Double Acting - Tilt and Tip, Bore and Stroke 209.5 mm × 188 mm (8.25 in × 7.5 in)
Relief Valve Setting - Bulldozer (Large Pump) 18650 kPa
Relief Valve Setting - Tilt Cylinders (Small Pump) 20150 kPa
Steering
Relief Valve Setting 31000 kPa
Steering Angle - Each Direction 35 °
Minimum Turning Radius - Over Bucket 10337 mm
Hydraulic Output at 2,128 rpm and 6900 kPa (1,000 psi) 410 l/min
Minimum Turning Radius - Over Bucket - HL 10757 mm
Service Refill Capacities
Fuel Tank - Standard 1016 l
Cooling System 150 l
Crankcase 95 l
Transmission 110 l
Hydraulic Tank 717 l
Differential - Final Drives - Front 271 l
Differential - Final Drives - Rear 261 l
Hydraulic System - Implement and Brakes - Tank Only 197 l
Hydraulic System - Steering and Engine Cooling Fan - Tank Only 132 l
Cab
Cab - ROPS/FOPS Meets SAE and ISO standards
Brakes
Brakes Meets SAE/ISO 3450 1996
Axles
Front Fixed
Rear Oscillating ±11°
Maximum Single-Wheel Rise and Fall 572 mm
Operating Specifications
Operating Weight 70815 kg
Blades
Blade Capacities 16.1 m3-30.7 m3 (21.1 yd3-40.2 yd3)
Sound Performance Levels
Sound Performance Meets ANSI, SAE and ISO standards

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Operating Weight 101898 kg
Emissions (U.S. EPA Tier 4 Final): Gross Power - SAE J1995 671 kW
Emissions (U.S. EPA Tier 4 Final): Net Power ISO - 9249 607 kW
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Engine Model Cat® C32 ACERT™
Gross Power 676 kW
Operating Weight 101720 kg
Emissions (U.S. EPA Tier 4 Final): Gross Power - SAE J1995 671 kW
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Net Power - ISO 9249 302 kW
Stroke 171.4 mm
Gross Power 324 kW
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Engine Model C27 Cat®
Gross Power 561 kW
Bore 137.2 mm
Stroke 152.4 mm
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Rated Speed 1900 r/min
Peak Power Speed 1500 r/min
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Engine Model Cat C7.1
Net Power (SAE J1349:2011) 186 kW
Net Power (ISO 9249:2007) 186 kW
Emissions U.S. EPA Tier 4 Final/EU Stage V
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Engine Model C27 Cat®
Rated Speed 1800 r/min
Gross Power - ISO 14396 561 kW
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Transmission Type Cat Planetary Power Shift
Oscillation Angle ±11°
Rear Planetary – Oscillating
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