Harvesting head

C144

Weight 1 410 kg 3,109 lbs.
Maximum cutting diameter 750 mm 29.5 in
Maximum delimbing diameter 510 mm 20 in

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Overview
Specifications
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Excellent performance in tough cutting conditions

This all-around head is designed to perform in demanding and rough environments, with four feed motors powering four driven feed rollers. It is perfectly matched to our 911, 931, 931XC and 951 wheeled harvesters, and is compatible with other brands.

Powerful feed motor and feed roller designs
Rugged knives handle crooked stems and tough limbs
Robust butt saws with Constant Cut system

Features and benefits

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Advanced feed system

Four feed motors power four driven feed rollers to provide multiple contact points for carrying the stem. Designed to center the stem for efficient feeding. Low clamping pressure delivers high feed force with low energy consumption.

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Rugged delimbing knife system

Four moveable cast iron delimbing knives for high durability and performance especially with tough limbs. High clamping forces grip the stem solidly for more force in the felling moment, reducing the chances of bent saw bars.

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Constant Cut saw unit

Intelligent saw motor control delivers the right chainsaw speed to reduce splitting risk and provide short cutting times. Programmable EcoOiler automatic chain lubrication system.

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Accurate length/diameter measuring systems

Patented length-measuring wheel cylinder design ensures constant equalized pressure to closely follow stem irregularities. High-resolution encoders, both left and right, deliver high accuracy.

MaxiXT smart control system

State-of-the-art control system with intuitive graphical interface to manage all aspects of head control and performance. Easy programming of individual operator control preferences plus production parameters such as tree species, length and diameter.

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Excellent reliability and serviceability

Computer and hydraulic hoses/tubes are well-protected for high reliability. All daily service can be performed at ground level without repositioning. Centralized lubrication points further reduce service time.

Specifications for C144

Full specifications

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US system Metric

Dimensions

Max width	1 795 mm
Height incl. rotator	1 770 mm
Height to vertical knife	1 600 mm
Opening knives, upper	660 mm
Opening knives, lower	800 mm
Roller opening, max	750 mm

Max width	70.7 in
Height incl. rotator	69.7 in
Height to vertical knife	63 in
Opening knives, upper	26 in
Opening knives, lower	31.5 in
Roller opening, max	29.5 in

Specifications

Weight	Dry weight, incl. rotator, from 1 400 kg
Feed speed	0 - 5 m/s
Gross feed force	29.6 kN
Feed wheel type	Steel rollers
Delimbing knives, number	5
Delimbing diameter, tip-to-tip	525 mm
Bar	82.5 cm
Saw motor	19 cm³/rev
Fell/Cut diam. theor. max	710 mm
Max hydraulic flow	320 L/min
Max hydraulic pressure	28 MPa

Weight	Dry weight, incl. rotator, from 3,109 lbs.
Feed speed	0 - 16.4 ft./s
Gross feed force	6,654 lbs.
Feed wheel type	Steel rollers
Delimbing knives, number	5
Delimbing diameter, tip-to-tip	20.7 in
Bar	32.5 in
Saw motor	1.16 in³/rev
Fell/Cut diam. theor. max	28 in
Max hydraulic flow	84.5 gpm
Max hydraulic pressure	4,061 psi

Notes

Standard and extra equipment are market-dependent and vary between countries. The specification describes possible equipment, not that which is standard or optional. Stated weights are based on standard equipment. Specifications and designs are subject to change without notice.

Support you can count on

Technology that works as hard as you do

MaxiXT smart control system

Constant Cut saw unit

The MaxiXT smart control system is designed to enable fast, accurate execution of even the narrowest of cutting windows. The power of the knives, feed rollers and tilt down function are determined by stem diameter and tree species, and are easily adjusted using a graph. This helps optimize your productivity, measurement accuracy and time savings.

Komatsu’s Constant Cut saw unit helps maximize cutting productivity and reliability. It ensures optimal 130 ft/sec (40 m/sec) chain speed through the entire cutting cycle, reducing the risks of splitting and over-revving the saw motor. Integrated saw and bar feeding valves reduce energy loss.