Harvester Head: H424 - Waratah Skip to main content
H424 harvester head - profile view
Weight (Without Rotator & Link) icon
Weight (Without Rotator & Link)
1105 kg / 2,436 lb.
Max Hydraulic Requirements icon
Max Hydraulic Requirements
28 MPa / 4,061 psi
Cutting Capacity icon
Cutting Capacity
620 mm / 24.4 in.
Delimbing Diameter Tip-to-Tip icon
Delimbing Diameter Tip-to-Tip
430 mm / 17.0 in.
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With its consistent performance in second thinnings and early regeneration cuttings, the versatile H424 harvester head is equally suited for processing or debarking applications. This compact-size head is specially designed for mid-sized wheeled and tracked machines.

With slip-free four-wheel-drive feeding, the H424’s proven high-performance valve provides efficient hydraulic oil flow and head control. Its mainframe has high durability, with a reinforced saw box, increased tilt angle and an optional heavy-duty (HD) tilt frame for tracked applications. Feed roller arms feature durable bearings, built-in feed roller guards, and strengthened cylinders and pins, with hose routing increasing durability of feed motor hosing.

The efficient SuperCut 100S saw unit with automatic chain lubrication and tensioning has a maximum felling diameter of 620 mm (24.4 in.). Four moving delimbing knives, along with one fixed top knife and one fixed back knife, ensure high delimbing quality for all stem diameters.

Technical Data

Dimensions Width, head open (mm/in.) 1520 / 60.0
Width, head closed 1300 / 51.2
Height without rotator and link 1345 / 53.0
Weight Excluding rotator, link and some options (kg/lb.) 1105 / 2,436
Delimbing Delimbing knives 4 moving, 2 fixed
Delimbing diameter, tip to tip (mm/in.) 430 / 17.0
Maximum opening, upper knives (mm/in.) 610 / 24.0
Maximum opening, lower knives (mm/in.) 670 / 26.4
Drive Quantity of drive rollers 4
Gross feed force [kN] (steel feed wheels) 620 / 400-cc: 27
503 / 315-cc: 21.5
Maximum feed speed (m/s) 4.3–5.3
Maximum roller opening (mm/in.) 640 / 25.2
Minimum diameter (mm/in.) 40 / 1.6
Butt / Felling Saw Standard SuperCut 100S saw unit, automatic chain tensioning
Maximum cut diameter (mm/in.) 620 / 24.4
Length of saw bar (mm) 750
Chain type .404
Saw motor 19, 20 or 25 cc
Oil tank capacity 7.5 l
Carrier Range Wheeled (metric ton) 17-22
Tracked (metric ton) 16-21
Hydraulic System Maximum operating pressure (Mpa/PSI) 28
Recommended pump capacity (l/min.,gal/min.) 260–320, 69-85
Control and Measuring System TimberRite H-16

Optional Configurations

Color marking Stump treatment
Multi-tree-handling (MTH) Debarking feed rollers
Moipu feed rollers Steel thumbnail feed rollers
Steel V-profile feed rollers Chain and saw-bar kits
Hydraulic hose kit Heavy-duty tilt frame
Rotator options Processing knives
Saw bar and chain grease lubrication


Not all models available in all countries. Service and support may also vary by region. Please contact a dealer for more information.

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