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The 595B is the largest and most powerful Barko knuckleboom loader. Powered by a Tier 4 diesel engine, this beast works hard to produce more loads, while still offering excellent efficiency.


The 595B is powered by a 173-HP Cummins QSB6.7 Tier 4 diesel engine with SCR aftertreatment.

Hydraulic Control System

The 595B features a pilot-operated control system, in conjunction with IQAN electronic controls, to provide a more natural feel for the operator. The system can be configured as necessary, and maintenance can be performed simply without a specialist.

Load Sensing Hydraulics

Unlike open loop systems that waste fuel, Barko’s efficient load sensing system delivers power only when needed. Load sensing valves and pump deliver excellent metering by matching pressure and flow. Adaptable to most attachments, the system runs cool. Efficient and precise grapple functions reduce operator fatigue.

Joystick Controls

Multi-functional dual joystick controls are ergonomically designed to provide enhanced comfort and productivity.

Boom Construction

Wider, all-welded boom construction with fabricated box type design includes engineered sweeping curves for added strength and increased fatigue resistance.

360-Degree Rotation

Rotary manifold allows for 360-degree continuous boom rotation and provides electrical and hydraulic power to the lower frame.

Swing Torque

Dual motors and planetary gearboxes produce 55,000 foot-pounds of swing torque, while improving machine balance.


Standard 3,000-pound cast steel counterweight provides extra stability.

Zinc Plated Pins

Extra large zinc plated pins and bolts provide added durability in high-stress areas.

Centralized Valves

Centralized hydraulic control valves are easily accessible outside cab door.

Bolt-On Cylinder Glands

Bolt-on cylinder glands make on-site service easy, while piston rings extend product life. Cylinders are made of heavy-duty steel tubing, and heavy chrome cylinder rods are heat-treated for added strength.


Centralized turntable greasing system and removable service panels simplify maintenance tasks.

Operator Cab

Vibration-isolated “floating cab” provides a smoother ride. Weather sealed, insulated and climate controlled, the cab includes a suspension seat with armrests, foot swing controls and halogen lights.

Instrument Panel

Digital display provides enhanced monitoring of all machine functions.


Tinted windows, including roof and sliding side windows, provide excellent visibility for safer operation.

Fuel Tank

120-gallon (454 L) fuel tank capacity allows for longer operating intervals.


Two sets of foldaway stabilizers further contribute to keeping loads steady.



Optional 7,000-pound cast steel counterweight for larger loads.


Log & pulp grapples
Grapple saw
Bar slasher/de-limber hydraulics package
Circle saw hydraulics package


Straight or live heel booms, available in lengths of 32 or 36 feet.


Available with hydraulics to support a self-propelled carrier.

Cab Risers

23″ or 48″ hydraulic tilt cab riser
23″, 36″ or 48″ fixed cab riser


SAHR swing holding brake
Park brake kit (carrier)
12-volt hydraulic transfer pump
Engine block heater
Hydraulic tank heater
Hydraulic thermal bypass
Automatic greasing system
Boom lights
Detachable heel bar (standard/offset, single/double vee)
10, 15 or 20 kW magnet generator package
Alternate hand/foot control configurations (consult factory)