Cat D3K2 dozer

D3K2 Mulcher

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Engine Model Cat C4.4 ACERT
Power - Net 77.6 kW
Displacement 4.4 l
Bore 105 mm
Stroke 127 mm
Note Engine meets Tier 4 Final/Stage IV emission standards.
Rated Net Power - 2,200 rpm - ISO 9249/EEC 80/1269 77.6 kW
Rated Net Power - 2,200 rpm - SAE J1349 77.6 kW
Drive Pumps 1
Maximum Travel Speed - Forward 9 km/h
Maximum Travel Speed - Reverse 10 km/h
Relief Valve Settings 48500 kPa
Track Motors 2
Operating Weight - XL 10771 kg
Operating Weight - LGP 11203 kg
Note Specifications shown are for machine equipped with mulcher, cab ROPS, back-up alarm, operator, coolant, lubricants and full fuel tank.
Service Refill Capacities
Cooling System 22.4 l
Crankcase - With Filter 11 l
Final Drive - Each - LGP 10 l
Final Drive - Each - XL 10 l
Fuel Tank 195 l
Transmission - Hydraulic Tank 59.5 l
Diesel Exhaust Fluid (DEF) Tank 19 l
Hydraulic Controls
Pump Output 68 l/min
Relief Valve Settings 20600 kPa
Ground Contact Area - LGP 28550 cm²
Ground Contact Area - XL 18254 cm²
Ground Pressure - LGP 30 kPa
Ground Pressure - XL 42.8 kPa
Length - Track on Ground - LGP 2248 mm
Length - Track on Ground - XL 2248 mm
Number of Rollers - Each Side 6
Number of Shoes - Each Side - Sealed and Lubricated Track (SALT) Undercarriage 43
Shoe Width - LGP 635 mm
Shoe Width - XL 406 mm
Track Gauge - LGP 1725 mm
Track Gauge - XL 1495 mm
Retrieval Winch
Control Hydraulic
Drum Capacity - Optional Cable 78 m
Drum Capacity - Recommended Cable 85 m
Maximum Line Pull - Bare Drum 14583 kg
Maximum Line Pull - Full Drum 9072 kg
Maximum Line Speed - Bare Drum 15 m/min
Maximum Line Speed - Full Drum 24 m/min
Rope Diameter - Optional 16 mm
Rope Diameter - Recommended 13 mm
Speed Variable
Weight 764 kg
Winch Drive Hydraulic
Air Conditioning System
Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.6 kg of refrigerant which has a CO2 equivalent of 2.288 metric tonnes.
FOPS ISO 3449:2005 Level II
ROPS ISO 3471:2008
Sound Levels - ISO 6396:2008 79 dB(A)
Sound Levels - SAE J1166 FEB2008 79 dB(A)
Ground Clearance - LGP 332 mm
Ground Clearance - XL 332 mm
Length - Basic Tractor - Without Mulcher - LGP 3275 mm
Length - Basic Tractor - Without Mulcher - XL 3275 mm
Overall Length - With Blade - LGP 4255 mm
Overall Length - With Blade - XL 4266 mm
Track Gauge - LGP 1725 mm
Track Gauge - XL 1495 mm
Tractor Height - LGP 2763 mm
Tractor Height - XL 2845 mm
Width - Tractor - Standard Shoes - No Mulcher - LGP 2360 mm
Width - Tractor - Standard Shoes - No Mulcher - XL 1901 mm
Specifications - HM518
Drive Method Polychain belt
Drum Speed Range 2150-2450 rpm
Fixed Teeth per Drum 38
Length 1354 mm
Lift Height 787 mm
Maximum Angle - Either Side 25°
Maximum Tilt 368 mm
Motor Closed loop hydrostatic
Optimum Hydraulic Flow 114 l/min
Optimum Hydraulic Pressure 407 bar
Overall Height 1480 mm
Overall Width 2122 mm
Weight 1450 kg
Working Width 1822 mm


360° Visibility

360° Visibility
Easy viewing of the job site operating area PLUS a rearview camera.
D3K2 Mulcher

Seat Mounted Controls

Seat Mounted Controls
Mounted on the air suspension seats, these controls isolate the machine vibration from the operator, reducing operator fatigue.

Pressurized Cab

Pressurized Cab
Heated and air conditioned cab offer comfortable working environment resulting in less operator fatigue and improved productivity.

Hinged Radiator Grill

Hinged Radiator Grill
Allows for easy clean out of radiator without the need for tools.

Tractor Platform

Tractor Platform
Balanced and rugged for operating in rough terrain and soft underfoot conditions.

Long Life Mulching Head

Long Life Mulching Head
New Cat® HM518 mulcher frame is designed for longer life using cladding material in high wear areas.

Hydraulically Controlled

Hydraulically Controlled
Mulcher conveniently operates with a hydraulically operated front door and adjustable push bar.

Closed Loop Hydrostatic Circuit

Closed Loop Hydrostatic Circuit
Delivers efficient, high performance power to the mulcher head, using less pump flow.

Reversible Drum

Reversible Drum
Easier operation and improved productivity.

Drum Speed Bar Indicator

Drum Speed Bar Indicator
In-cab indicator, aids operator in managing ground speed and overall mulching productivity.


Cat C4.4 ACERT™ diesel engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.


Cat Sealed and Lubricated Track with 406 mm (16 in) or 635 mm (25 in) track shoes provides superior flotation and stability for wide range of operating conditions.

Reversing Fan

Reversing Fan
Auto reversing fan changes air flow direction to purge debris from radiator and enclosures.



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