Cat Large Wheel Dozers 844K
Cat Large Wheel Dozers 844K

Cat Large Wheel Dozers 844K

Feature

Engine Model : Cat® C27 ACERT™

Gross Power : 561.0 kW

Operating Weight : 74883.0 kg

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Contact Cat

Name : Cat

Service Tel : (309)578-6298

E-mail :

Web Site : https://www.caterpillar.com/en.html

Address :

Feature Parameter

Cat Blades

Technology Solutions

Sustainability

Structures

Serviceability

Safety

Power Train

Operator Station

Hydraulics

Customer Support

Cat MineStar System

Overview

Cat Large Wheel Dozers 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. Engineered for your demanding work in large dozing applications, the 844K Wheel Dozer is the largest in the Cat Wheel Dozer line and is an ideal match for large mining operations, power generating utilities, the general contracting industry and wherever mobility, versatility and compaction is needed.

Engine

Units:
Engine Model Cat® C27 ACERT™ Cat® C27 ACERT™ Less
Gross Power 752.0 HP 561.0 kW Less
Bore 5.4 in 137.2 mm Less
Stroke 6.0 in 152.4 mm Less
Displacement 1649.5 in³ 27.03 l Less
Torque Rise 18.0 % 18.0 % Less
Emissions U.S. EPA Tier 4 Final or Tier 2 Equivalent U.S. EPA Tier 4 Final or Tier 2 Equivalent Less
Gross Power - ISO 14396 752.0 HP 561.0 kW Less
Gross Power - SAE J1995 766.0 HP 571.0 kW Less
Net Power - SAE J1349 699.0 HP 521.0 kW Less
Net Power - SAE J1349 - High Ambient 648.0 HP 483.0 kW Less
Net Power - SAE J1349 - Standard Ambient 699.0 HP 521.0 kW Less
Peak Torque - Speed 2624.0 lb/ft 3557.0 N·m Less
Rated Speed 1800.0 r/min 1800.0 r/min Less

Weights

Operating Weight 165089.0 lb 74883.0 kg Less

Transmission

Converter Drive - Forward 1 4.5 mile/h 7.3 km/h Less
Converter Drive - Forward 2 8.3 mile/h 13.3 km/h Less
Converter Drive - Forward 3 14.2 mile/h 22.9 km/h Less
Converter Drive - Reverse 1 4.9 mile/h 7.9 km/h Less
Converter Drive - Reverse 2 9.1 mile/h 14.7 km/h Less
Converter Drive - Reverse 3 15.5 mile/h 24.9 km/h Less
Direct Drive - Forward 2 8.5 mile/h 13.7 km/h Less
Direct Drive - Forward 3 15.2 mile/h 24.5 km/h Less
Direct Drive - Reverse 1 5.4 mile/h 8.7 km/h Less
Direct Drive - Reverse 2 9.6 mile/h 15.4 km/h Less
Direct Drive - Reverse 3 16.4 mile/h 26.4 km/h Less
Direct Drive - Forward 1 Lock-up disabled Lock-up disabled Less
Transmission Type Cat Planetary Power Shift Cat Planetary Power Shift Less

Service Refill Capacities

Fuel Tank - Standard 286.6 gal (US) 1085.0 l Less
Cooling System 54.9 gal (US) 208.0 l Less
Crankcase 20.0 gal (US) 76.0 l Less
Transmission 29.1 gal (US) 110.0 l Less
Differential - Final Drives - Front 71.6 gal (US) 271.0 l Less
Differential - Final Drives - Rear 68.9 gal (US) 261.0 l Less
Hydraulic System - Implement and Hydraulic Fan 68.9 gal (US) 261.0 l Less
Hydraulic System - Steering and Braking 34.9 gal (US) 132.0 l Less

Cab

Air Conditioning Standard air conditioning system contains environmentally friendly R134a refrigerant Standard air conditioning system contains environmentally friendly R134a refrigerant Less
Cab - ROPS/FOPS (1) Cat cab with separate ROPS/FOPS is standard in North America, Europe and Japan. Cat cab with separate ROPS/FOPS is standard in North America, Europe and Japan. Less
Cab - ROPS/FOPS (2) SAE J11040 APR88, ISO 3471:2008, ISO 3471:1994 SAE J11040 APR88, ISO 3471:2008, ISO 3471:1994 Less
FOPS FOPS meets SAE J231 JAN81 and ISO 3449:1992 Level II criteria. FOPS meets SAE J231 JAN81 and ISO 3449:1992 Level II criteria. Less
ROPS ROPS meets SAE J11040 APR88, ISO 3471:2008 and ISO 3471:1994 criteria. ROPS meets SAE J11040 APR88, ISO 3471:2008 and ISO 3471:1994 criteria. Less

Brakes

Brakes Meets ISO 3540:2011 Meets ISO 3540:2011 Less

Axles

Front Fixed Fixed Less
Rear Trunnion Trunnion Less
Oscillation Angle 8.5 ° 8.5 ° Less

Blade

Blade Capacity Range 15.9-30.7 m3 (20.7-40.2 yd3) 15.9-30.7 m3 (20.7-40.2 yd3) Less

Sound Performance - Standard

Machine Sound Level (ISO 6395:2008) 115.0 dB(A) 115.0 dB(A) Less
Operator Sound Level (ISO 6396:2008) 69.0 dB(A) 69.0 dB(A) Less

Sound Performance - Suppression

Machine Sound Level (ISO 6395:2008) 113.0 dB(A) 113.0 dB(A) Less
Operator Sound Level (ISO 6396:2008) 69.0 dB(A) 69.0 dB(A) Less

Hydraulic System - Lift/Tilt

Cylinder, Double Acting - Tilt and Tip, Bore and Stroke 210 mm × 188 mm (8.25 in × 7.4 in) 210 mm × 188 mm (8.25 in × 7.4 in) Less
Cylinders, Double Acting - Lift, Bore and Stroke 133 mm × 1535 mm (5.25 in × 60.4 in) 133 mm × 1535 mm (5.25 in × 60.4 in) Less
Output at 2,000 rpm and 6900 kPa (1,000 psi) 82.0 gal/min 311.0 l/min Less
Relief Valve Setting - Bulldozer (Large Pump) 2700.0 psi 18650.0 kPa Less
Relief Valve Setting - Tilt Cylinders (Small Pump) 2920.0 psi 20150.0 kPa Less

Hydraulic System - Steering

Maximum Flow 94.3 gal/min 357.0 l/min Less
Minimum Turning Radius - Over Blade 34.0 ft 10369.0 mm Less
Relief Valve Setting 4500.0 psi 31000.0 kPa Less
Steering System - Circuit Pilot, load sensing Pilot, load sensing Less
Steering System - Pump Piston, variable displacement Piston, variable displacement Less
Total Steering Angle 35.0 ° 35.0 ° Less

Dimensions (Approximate)

Centerline of Front Axle to Hitch 7.5 ft 2300.0 mm Less
Centerline of Rear Axle to Edge of Bumper 12.5 ft 3795.0 mm Less
Ground Clearance 2.0 ft 596.0 mm Less
Height - Top of Exhaust Pipe 16.6 ft 5049.0 mm Less
Height - Top of Hood 12.7 ft 3862.0 mm Less
Height - Top of ROPS 17.2 ft 5240.0 mm Less
Length - With Blade on Ground 36.5 ft 11120.0 mm Less
Wheel Base 15.1 ft 4600.0 mm Less

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