HARVESTER HEADS
The Waratah 623C
allow for multiple diameter applications; high-feed force and speed ensure productivity for multiple stem sizes. These two- wheel-drive harvesters provide a large contact area with reduced friction allowing efficient feeding and highly productive processes. The 400-Series is the next
generation of Waratah harvester heads; building on the features of the 200-Series while increasing power with additional feed rollers. Continuous four-wheel drive rollers allow slip-free, fast feeding for additional delimbing capability with greater traction. The 400- Series heads combine manoeuvrability and excellent
stem control for safety. Waratah 600-Series three- wheeled harvesters are tough machines with superior grab arms
and body design to make them an effective head for processing decked wood, TL felling, or CTL applications, the company stated. The synchronised three-wheel design provides the traction and stem alignment needed without slipping or damaging valuable wood fibre. These heads come standard with thumbnail steel drive wheels or, for sensitive applications, Waratah also offers rubber wheels with steel chains. The 600-Series’ hydraulic design is a basic and efficient approach. Service is trouble-free with standardised components. The valve bank has identical individual sections for each function, so there is no need to keep an abundance of spare parts on hand. The innovative hydraulic hose swivel design keeps hoses and electrical cable from twisting and increases uptime.
Delimbing Waratah harvester heads feature delimbing knives shaped for
ensuring fuel efficient and precise hydraulic control at all times. The wide opening of the knives allows fast grabbing for the felling cut, reducing processing time and improving productivity.
Cutting Waratah harvester heads are equipped with the SuperCut 100 saw unit that efficiently manages the frequent cross-cutting of stems required in CTL logging. The latest sensor technology together with the TimberRite control system provides outstanding pressure control and an array of settings throughout the tree- diameter range. The saw unit’s automatic chain tensioning reduces maintenance efforts and prolongs the life of the bar and chain improving productivity all while extending the life of the components. Fully integrated chain lubrication is economical, ensuring low operating costs. The patented chain catcher is a standard safety feature of all Waratah harvester heads. The saw unit can be customised with a variety of options, including Parker or Bucher saw motors, bar and chain kits, and several types of lubrication pumps.
The Waratah 622B
quality delimbing of various-sized stems. Knife geometery and long cutting edges provide excellent delimbing quality for multiple diameters while minimising damage to the stem. State-of-the- art proportional hydraulic control quickly adapts the positioning of the knives to the diameter of the stem. Hydraulic pressure adjustments can be easily made from the cab with the Waratah automation and control system,
The Waratah 250-HD 32 International Forest Industries | AUGUST/SEPTEMBER 2011
Multi-Tree Handling “Waratah is a pioneer in multi-tree handling (MTH) and provides superior bundle feeding and precise delimbing with our MTH option,” the supplier said. MTH ability increases productivity and can easily be installed between the rotator and hanging bracket – even on existing heads. This MTH configuration can be especially useful in thinning and regeneration, as well as in energy wood harvesting applications. Productivity is increased even further when used in conjunction with optional MTH feed rollers. “Harvester heads can be customised for different applications with a variety of factory options, including feed motors of various power levels and choice of feed-roller types.”
The most recent offering to spring from major North American-based supplier, Tigercat, is the TH575
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