Gross Power274 HP (204 kW)
Engine ModelCat® C7 ACERT™
Displacement439 in³ (7.2 l)
Torque872 lb/ft (1182 N·m)
The Cat® 584 forwarder meets the demanding requirements of forest harvesting in many variable applications. These structurally superior units provide unbeaten comfort, controllability, and serviceability to get the job done in a safe, productive, and efficient manner.


Gross Power274 HP (204 kW)
Engine ModelCat® C7 ACERT™
Displacement439 in³ (7.2 l)
Torque872 lb/ft (1182 N·m)
Load Capacity44092 lb (20000 kg)
Loader Reach27.89 ft (8.5 m)
Tractive Ability52605 lb (234 kN)
Load Capacity - HD 8WD44092 lb (20000 kg)
Low Speed4.4 mile/h (7 km/h)
Maximum Speed13 mile/h (20.9 km/h)
Steering Angle42 ° (42 °)
Transmissionhydrostatic, 2-speed drop box
Operating Weight50900 lb (23088 kg)
Operating Weight - HD 8WD50900 lb (23088 kg)
Bunk Area59.3 ft² (5.5 m²)
Load Bunksmoveable
Optional Bunk Area67.3 ft² (6.25 m²)
Grapple TypeEpsilon FG37
Grapple Type - OptionalEpsilon FG43S
Lifting Torque - Gross111975 lb/ft (159 kN·m)
Loader TypeEpsilon X120F
Reach315 in (8 m)
Rotator TypeG141
Slewing Angle380 ° (380 °)
Slewing Torque - Gross30240 lb/ft (45 kN·m)
Flow Rate75 gal/min (284 l/min)
Working Pressure - Maximum3120 psi (21.5 MPa)
Fuel Tank67.3 gal (US) (255 l)
Hydraulic Fluid Reservoir46 gal (US) (174 l)
ROPSISO 3471:1994, ISO 8082:2003
FOPSISO 3449:2005 (LEVEL II), ISO 8083:2006
OPSISO 8084:2003, SAE J1084, SEP2002, BC WCB G603, MAR90
Size750/55 × 26.5

Benefits and Features

Cat® C7 Engine

The Cat C7 engine with ACERT™ technology gives exceptional power and fuel efficiency. Meets Tier 3, Stage IIIA emission requirements. Tier 3 refers to EPA (U.S.) standards. Stage IIIA refers to European standards. Engines include electronic governing, cold mode start strategy, automatic altitude compensation, electronic diagnostics and fault monitoring.

Modulated Fan Speed

The engine fan speed control is modulated by the IQAN system based on system temperatures to provide fuel savings and precise temperature control.

Hydrostatic Drive System

The forestry designed hydrostatic drive system gives exceptional power, efficiency and controllability unequaled in the industry for consistently high performance in all terrain applications.

Exceptional Cooling Capability

Enlarged cooling capacities provide the high heat rejection capability required for long distance hauling and utilizing the high tractive effort capabilities.

Solid Working Platform

Caterpillar design and manufacturing techniques assure outstanding durability and service life. The front and rear frame structures are manufactured to stand up in the most demanding forest applications.

Oscillation and Articulation

Extreme duty center articulation and oscillation points are designed for long service life. The cast knuckle articulation includes tapered roller bearings and hardened expander center joint pins.

The forwarder loader is designed for hard, demanding work. Decades of experience can be seen in the innovative details, durable structure and reliable technology. Speed and smoothness are combined to get the work done safely, reliably, and without downtime.

Hydraulic Pump Is Powerful, Responsive, Quiet

Designed for continuous, efficient and reliable operation, the forwarders axial piston hydraulic pump meets stringent requirements for noise, efficiency, controllability and durability. High load bearings are designed to ensure excellent reliability and long life. A spring assisted servo piston ensures rapid on-stroke performance, especially in low standby pressure conditions. The rigid casing design ensures that all internal forces are well supported. Hydrostatic swash plate balancing together with a rigid support mechanism enhances the power density and reduces noise emissions.

Valves Are Load Sensing, Pressure Compensated

The valve system has proven reliability in forestry applications with its fuel efficient load sensing pressure compensated technology. The valve has been given excellent simultaneous operating characteristics, which enable several machine functions to be operated responsively at the same time, regardless of the sizes of individual loads. Each section is designed specifically for the flow and pressure of the function, therefore optimizing machine functionality and fuel efficiency. Ramped and proportional crane functions saves mechanical wear and tear on boom structures. Steering sensors provide feedback through the IQAN control system to cushion stop points of the cylinders.

Maximum Production, Comfortable Work

Spacious purpose built forestry cab with excellent sight lines to the work area. The forward positioned side posts provide maximum visibility for the loader working range. The ventilation system provides superb air flow for heating and cooling functions. Refined instrumentation and plenty of storage areas allow an uncluttered working environment.

State-Of-The-Art Controls

The forwarder utilizes the latest technology with CAN-Bus controlled IQAN, switch panels, and engine control. The IQAN MDL master control has a 165 mm (6.5 in) transflective TFT color display which includes excellent on‑screen diagnostics. Units are configured for English or metric display. Low effort ergonomic joy stick controls provide easy effort control of the loader functions. Loader functions are configurable for SAE or Forestry patterns. Loader control allows input into 3 selectable and adjustable operator interphases, plus a factory default. An automotive style, tuned hydrostatic propel system allows for all types of terrain and load characteristics.

Tilting Hood Provides Easy Access

A forward tilting front hood assembly together with the side tilting cab design provide full access to the engine, hydrostat, and hydraulic components.

Better Diagnostics, Grouped Service Points

Simplified service and electronic diagnostics help to increase productivity and machine availability. Grouped lubrication points and lines reduce service times.

Easy Fluid Changes

Removable cover plates allow full access for cleaning and service. An electric refill pump to add oil into the hydraulic tank maintains system cleanliness by passing all added oil through the filtering system. A vacuum pump on the hydraulic tank reduces exposure to oil loss during service and repair.

Before, During and After Your Purchase

Your Cat dealer is ready to assist you with your purchasing decision and everything after. Factory trained dealer technicians service every aspect of your forwarder. Preventative maintenance agreements are available for repair before failure options. Scheduled oil sampling programs can be utilized to match your oil samples against Caterpillar set standards. For more information on Cat products, dealer services and industry solutions, visit us at www.cat.com.

Standard Equipment

  • 24V system
  • Pressurized ROPS-FOPS-OPS cab
  • Cat C7 ACERT engine
  • 200 cc (12.2 in³) variable displacement implement pump
  • Driving brake/work brake
  • Epsilon X120F80 with G141 rotator
  • 5.41 m (17.75 ft) load deck

Optional Equipment

  • 650/65 × 26.5, carrier width is 3180 mm (125.19 in)