US
Metric

Overview

The D-Series Forest Machines are powered with ACERT® Technology and Caterpillar quality from undercarriage to grapple. These rugged, state-of-the-art forest machines provide both reliability and durability for the most demanding logging environments.

Engine

Engine Model
Cat® C6.4 ACERT™
Net Flywheel Power
157.00 hp
117.00 kW
ISO 9249
147.00 hp
110.00 kW
J1349
147.00 hp
110.00 kW
EEC 80/1269
147.00 hp
110.00 kW
Bore
4.02 in
102.00 mm
Stroke
5.12 in
130.00 mm
Displacement
390.00 in3
6.40 L

Weights

General Forestry (HW)
59315.00 lb
26900.00 kg
General Forestry (HD/LC)
56228.00 lb
25500.00 kg
Log Loader (U/U)
66812.00 lb
30300.00 kg

Swing Mechanism

Swing Torque - General Forestry
45611.00 lb ft
61.80 kN·m
Swing Speed - General Forestry
11.50 RPM
11.50 RPM

Drive

Maximum Travel Speed (HD/LC)
3.30 mph
5.30 km/h
Maximum Drawbar Pull (HD/LC)
42264.00 lb
188.00 kN
Maximum Travel Speed (HW)
2.60 mph
4.30 km/h
Maximum Drawbar Pull (HW)
55700.00 lb
248.00 kN

Service Refill Capacities

Fuel Tank
108.30 gal
410.00 L
Fuel Tank - Optional Auxiliary Right Front
108.30 gal
410.00 L
Maximum Fuel with all Optional Tanks
216.60 gal
820.00 L
Cooling System
6.60 gal
25.00 L
Engine Oil
7.90 gal
30.00 L
Swing Drive
2.10 gal
8.00 L
Final Drive (each) - (HW)
3.40 gal
13.00 L
Final Drive (each) - (HD/LC)
2.60 gal
10.00 L
Hydraulic System (including tank)
68.00 gal
260.00 L
Hydraulic Tank
33.00 gal
125.00 L

Standards

Brakes
SAE J1026 APR90
Cab/FOGS/OPS/TOPS/FOPS
SAE J1356 FEB88 ISO 10262/SAE J1084/ISO 8084/OR-OSHA 437-007-0775/WCB G602, G603, G604, G608

Hydraulic System

Main Implement System - Maximum Flow (2x)
54.20 gal/min
205.00 L/min
Maximum Pressure - Implements
5075.00 psi
35000.00 kPa
Max. pressure - Travel
5075.00 psi
35000.00 kPa
Max. pressure - Swing
3625.00 psi
25000.00 kPa
Pilot System - Maximum Flow
11.00 gal/min
42.00 L/min
Pilot System - Maximum Pressure
600.00 psi
4120.00 kPa
Boom Cylinder - Bore
4.70 in
120.00 mm
Boom Cylinder - Stroke
49.60 in
1260.00 mm
Stick Cylinder - Bore
5.50 in
140.00 mm
Stick Cylinder - Stroke
59.30 in
1500.00 mm

Excavator Linkage

Boom Cylinder - Bore
4.70 in
120.00 mm
Boom Cylinder - Stroke
49.60 in
1260.00 mm
Stick Cylinder - Bore
5.50 in
140.00 mm
Stick Cylinder - Stroke
59.30 in
1500.00 mm
B1 Family Bucket Cylinder - Bore
4.70 in
120.00 mm
B1 Family Bucket Cylinder - Stroke
43.30 in
1100.00 mm

Log Loader Linkage

Boom Cylinder - Bore
5.50 in
140.00 mm
Boom Cylinder - Stroke
45.70 in
1160.00 mm
Stick Cylinder - Bore
5.90 in
150.00 mm
Stick Cylinder - Stroke
57.90 in
1470.00 mm
Under/Under Heel Cylinder - Bore
5.10 in
130.00 mm
Under/Under Heel Cylinder - Stroke
45.50 in
1156.00 mm
Sales Features

Power Train

The Cat® C6.4 has exceptional power and fuel efficiency unmatched in the industry for consistently high performance in both forestry and millyard applications.

Hydraulics

Cat® hydraulics provide the power and control needed for a variety of applications.

Operator Comfort

The purpose built forestry cab interior layout maximizes operator space, provides exceptional comfort, provides excellent sightlines and reduces operator fatigue.

Structures

Purpose-built forest applications with reinforced carbody, rugged swing bearing, heavy doors and extra guarding.

Guarding

Caterpillar guarding protects your forestry machine investment.

Undercarriage

Durable undercarriage absorbs stresses and provides excellent stability.

Versatility

A wide selection of Forest Machine configurations meet diverse forestry applications and improve your productivity.

Caterpillar Grapples

Caterpillar Forest Machines combined with Cat Log Loading Grapples mean optimal performance, reliability and on-the-job productivity.

Owning and Operating Costs

Caterpillar Forest Machines provide the best value for your forestry and millyard applications.

Serviceability

Simplified service and maintenance features save you time and money.

Customer Focus

Caterpillar dealer services help you operate longer with lower costs.
Standard Equipment
  • Electrical
    • 80 Ampere alternator
    • 4 Front working lights, cab top mounted
    • 2 Front working lights, riser mounted
    • 1 Left side working light, cab mounted
    • 1 Rear working light, cab mounted
    • Horn
  • Operator Environment
    • Purpose built forestry cab with 8 lights and all scratch resistant polycarbonate windows
    • Seat, four-way adjustable suspension seat with adjustable armrest, retractable seatbelt, headrest and lumbar support
    • Integrated seat, console and joystick type controls
    • Language display monitor with gauges
    • Warning information • Filter/fluid change information • working hour information • machine condition • error code and tool mode setting information • start up level check for hydraulic oil, engine oil and engine coolant
    • Full time clock on monitor (2 weeks)
    • Seat mounted joystick with extra functions for grapple
    • Fixed polycarbonate skylight with retractable sun shade
    • Interior lighting
    • Lower and upper windshield wipers and washer
    • Positive filtered ventilation, pressurized cab with bi-level air conditioner, heater and defroster with manual control
    • Forced air fan
    • 2 post mounted fresh air vents
    • Behind seat storage tray with tie down points
    • 2 CB radio mounts
    • 1 Fire extinguisher mount
    • 1 Attachment computer control mount
    • Secondary roof exit openable from inside and outside
    • 2 Coat hooks
    • Ashtray with lighter
    • Literature holder
    • Cup holder
    • Neutral lever for all controls
    • Travel control pedals with removable hand levers
    • Washable floor mat
    • Radio/CD player (12V)
    • 1 Converter/2 sockets - 12V-10A power supply
  • Power Train
    • CAT C6.4 with ACERT™ Technology U.S. EPA Tier 3 emissions compliant with 24-volt electric starting and air intake heater
    • Automatic engine speed control with one touch low idle
    • Easy clean swing-out condenser
    • Easy clean swing out radiator
    • Muffler
    • Two speed auto-shift travel
    • Water separator in fuel line
  • Undercarriage
    • Hydraulic track adjusters
    • Track type undercarriage with grease lubricated seals
    • Idler and full-length track shoe support
  • Other Standard Equipment
    • Heavy-duty upper frame with catwalks, bottom guards, heavy duty side doors
    • Core hydraulic lines and controls with standard main valves on upper structures
    • Door locks, cap locks and Caterpillar one key security system
    • Automatic swing parking brake
    • Travel alarm
    • Counterweight with lifting eye
    • Right front corner guard
  • 320D FM General Forestry Arrangement also includes:
    • Forestry cab, hydraulic tilt 18" riser
    • High-wide undercarriage or heavy-duty long undercarriage
    • Heavy-Duty recoil springs
    • Heavy-Duty track roller frame
    • Heavy-Duty travel motor covers
    • Heavy-Duty swivel guard
    • Forestry Heavy-Duty upper frame with catwalk
    • Heavy-Duty bottom guard
    • Heavy-Duty side doors
    • Right front corner guard
    • Travel alarm
  • 320D FM Log Loader Arrangement also includes:
    • Forestry cab
    • Hydraulic tilt 48" riser
    • High-wide undercarriage
    • Heavy-Duty recoil springs
    • Heavy-Duty track roller frame
    • Heavy-Duty travel motor covers
    • Grapple/rotator hydraulic arrangement
    • Heavy-Duty swivel guard
    • Forestry Heavy-Duty upper frame with catwalk
    • Heavy-Duty bottom guard
    • Heavy-Duty side doors
    • Right front corner guard
    • Travel alarm
Optional Equipment
  • Front Linkage: General Forestry
    • Reach Boom 5.7m (18 ft 8 in)
    • Reach Stick 2.9m (9 ft 6 in)
    • Reach Stick 2.9m (9 ft 6 in), Harvester
    • Bucket Linkage CB1 Family
    • Boom Lowering Control Device
  • Hydraulic Packages: General Forestry
    • Rotating Grapple
    • Harvesting Head
    • Thuumb
  • Auxiliary Hydraulic Lines: General Forestry
    • Auxiliary lines HP & MP, Reach Boom
    • Auxiliary lines HP & MP, Reach Stick
  • Engine/Power Train
    • Auto Reverse Fan
    • Prefilter, air
    • Cold Weather Starting Aid
    • Extended life Cooling with 50% Concentration -34°C (-30°F)
  • Undercarriage (Track shoes)
    • 600 mm (24 in) Double Grouser Shoes with Trap Holes
    • 700 mm (28 in) Heavy-Duty Double Grouser Shoes with Trap Holes
    • 700 mm (28 in) Heavy-Duty Triple Grouser Shoes with Trap Holes
    • 800 mm (32 in) Heavy-Duty Triple Grouser Shoes with Trap Holes (For HW U/C only)
  • Electrical
    • Product link (PL 321 SR)
    • Maintenance Service lights for Pump and Battery Comparment
    • Working HID Lights for Boom
  • General Optional Equipment
    • Auxiliary Pump Driver (for additional hydraulic pump)
    • Adapter boom foot (for harvester configuration
    • Pump, Electrical Refueling
    • Pump, Vacuum (Hydrualic)
    • Rubber Guard for Boom Foot
    • Right Front Corner Fuel Tank(additional 409 L (108 gal))
    • Heavy Counterweight (Additional 1970 kg - (4,344 lb)) For General Forestry (Standard on Log Loader)
  • Front Linkage: Log Loader
    • Under/Under Boom/Stick/Heel Linkage
    • Stick Cylinder Guard
    • Heel, Log Loader
  • For General Forestry
    • Ground Saw Slasher