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Tigercat Forestry Equipment product sideview of a 234B log loader

234B Loader

Quick, powerful and productive, the Tigercat powered 234B knuckleboom loader offers high performance and the best fuel efficiency in its class for low cost per tonne merchandizing and loading.

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An all-around loader suited to the vast majority of roadside applications, the 234B can be equipped with a pull-through delimber, bar saw slasher, circle saw slasher or grapple saw for maximum flexibility. The strength-to-weight optimized boom system is designed to withstand the forces of high cycle delimbing and loading.

The efficient load sensing hydraulic system with swing priority and energy recovery delivers simultaneous power to all machine functions for high performance and response, while providing excellent fuel efficiency for reduced cost per tonne.

The Tigercat FPT Tier4 engine is perfectly matched to the duty cycle for added efficiency and high performance of the after treatment system.

The operating environment is quiet and refined with excellent climate control, a heated and cooled seat, window blinds and ergonomic controls.

The 234B is also available with the Tigercat AC16 articulating carrier for mill yard applications. Equipped with Tigercat’s WideRange™ drive system, the AC16 achieves high tractive effort to handle tough terrain and towing applications.

Key Benefits

  • Tigercat FPT N45 Tier 4 engine – clean, powerful and efficient with simple SCR emission control technology; fully supported by Tigercat
  • Extremely efficient load sensing hydraulic system for high performance and fuel savings
  • Energy recovery swing system – closed loop drive feeds power back to the engine as swing decelerates, reducing heat and fuel consumption and recovering energy for other machine functions
  • Dedicated swing pump – quick swing cycles and enhanced performance in delimbing applications
  • Automatic engine idle down for reduced fuel consumption in unsteady wood flow situations
  • Large diameter swing bearing; powerful swing torque with smooth starts and stops.
  • Heavy duty strength-to-weight optimized boom; designed for heavy lifting and tough duty delimbing
  • Rigid, fabricated subframe is generously sized for excellent stability
  • Durable Tigercat cylinders; no aluminum components
  • High capacity cooling system
  • Very quiet operating environment (64 – 68 dB)
  • Excellent climate control, heated/cooled seats and window blinds
  • Unmatched service access – hydraulic valves are top accessible underneath the deck plate cover
  • Optional (735 mm / 29 in) cab riser for increased visibility in high decking applications.
  • Optional AC16 articulating carrier designed and built by Tigercat; forest duty axles and powerful tractive for rough terrain and towing applications


Tigercat 234B loader walk-around
Find out all about the new Tigercat powered 234B knuckle boom  loader in this informative walk-around video. Download in HD Download for mobile
Video: Tigercat knuckleboom loaders
Watch Tigercat 234B and 250D series knuckleboom loaders in delimbing, sorting and loading applications. Tigercat log loaders are extremely fuel efficient, highly reliable and very productive. Download in HD  


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Show measurements as:
LENGTH4 900 mm
WIDTH2 590 mm
HEIGHT3 530 mm
WEIGHT15 130 kg
ENGINE Tier 4fTigercat FPT N45 Tier 4f
125 kW (168 hp) @ 2,200 rpm (rated)
129 kW (173 hp) @ 1,900 rpm (peak)
Automatic idle down
COOLINGSide-by-side aluminum radiator, oil cooler, charge air cooler
and A/C condenser
FANFixed pitch, high flow
OptionalFlexxaire® variable pitch, reversing
PUMP, SWINGPiston, pressure compensated
FILTRATION(4) spin-on, 7 micron full-flow
CYLINDER, HOIST165 mm (6.5 in) bore
CYLINDER, STICK140 mm (5.5 in) bore
CYLINDERS, STABILIZERS(4) 165 mm (6.5 in) bore,
bolt-on bi-directional lock valves
LENGTH less step4 290 mm
SUPPORT BASE3 810 mm x 4 650 m
STABILIZER PADS585 mm x 710 mm
SWING DRIVE9 rpm variable, 360˚ continuous rotation
Swing priority and energy recovery
SWING BEARING1 190 mm (47 in) ball circle diameter
Internal gear teeth
Double reduction planetary gearbox
ENCLOSUREWalk-up platform
LIFT CAPACITY14 740 kg @ 3,05 m
5 670 kg @ 7,6 m
BATTERY(2) 950 CCA, 12 v
ALTERNATOR80 amp, 24 v
LIGHTINGHalogen, (2) boom mounted, (3) cab mounted, (1) engine house
(1) service, engine house
LIGHTING, OptionalLED lighting package
CABInsulated, pressurized and isolation mounted
Forward sloping, tinted polycarbonate windshield with intermittent wiper
Sliding tinted side windows
Polycarbonate skylight
Window blinds for windshield and skylight
A/C, heater, defroster and pressurizer
3-speed fan; Dome light
Cell phone holder; (2) 12 v power points; CB radio
AM/FM digital stereo with CD player and auxiliary input port
Bluetooth® audio and hands-free calling
Electronic control system with colour LCD display screen for machine monitoring and function adjustment
SEATHeavy duty suspension, fully adjustable, heated and cooled
BOOMElectronic joystick
OptionalHydraulic joystick
SWINGPilot valve, foot operated
STABILIZERSElectric switches
STANDARDLogOn™ local wifi machine monitoring system
Delimber/bar saw slasher hydraulics
OPTIONALRemoteLog® telematics system
Tigercat LG4053, LG5057T grapples, continuous rotation
Other grapples available
Live Heel
Grapple saw hydraulics
Circle saw slasher hydraulics
Self-propelled hydraulics
High Output LED lighting package
760 mm (30 in) cab riser
Cold weather kit