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Tech Review - Harvesting and Processing Heads
Caterpillar Forest Products
Caterpillar Forest Products offers an extensive line of harvester heads built especially for the North American logger. They feature a user-friendly computer system that allows the operator to cut more wood and worry less about computer
The PD-57 is a large dangle head built to process big hardwood and limby trees, and its extended delimbing arms make log selection from a pile easy. For select thinning, the PF-48 fixed head offers a one-of-a-kind 4-roller design giving the head more contact with the tree for better feeding. The valve body is mounted on the carrier not the head, reducing shock loads. Two measuring systems — roller measurement and an independent measuring device — allow the operator to select the best method for the application. The PE-44 and PD-46 are designed specifically for Caterpillar’s wheel and small track harvesters. The PE-44 works best in medium size softwoods or mixed stands with smaller hardwoods. Its computer system offers extras, including production recording and proportional pressures on both the knives and feed rollers. The PD-46 has a more robust structure and is well suited for harvesting medium hardwoods and mixed stands. www.prenticeforestry.com
Hahn Machinery Inc. continues to offer the HSG140 and HSG160 single-grip harvester heads. These simple and compact heads are intended to fell, delimb, and buck small timber and have been used extensively in thinning operations. Since 2006, Hahn has offered a high-performance version of its HSG series harvester heads. The successful “B” models feature digitally controlled, proportional, hydraulic valves with high pressure/high flow capability. The new hydraulic system enables the HSG “B” series to take full advantage of most modern excavator hydraulic systems and dramatically improves felling, delimbing, and bucking performance. www.hahnmachinery.com
Arbro harvesting heads are particularly designed for thinning and reforestation projects allowing the use of lighter and less expensive carriers such as small excavators. They are reasonably priced and provide a good return for a logger of small to medium size timber.
Arbro harvesting heads’ capability to fell, delimb, and cutto- length makes them time and cost-effective tools for small timber operations. The Arbro 400 handles trees up to 14” and the Arbro 1000 up to 18”. The harvesters have an automatic stroke with a length of 29.5” instead of 26”. A tree can be delimbed by pressing a single button. Eight different pre-selected lengths may be programmed in. Any length can be chosen at any time. The delimbing and grip knives will open separately. (A free DVD is available upon request.) www.hakmetusa.com
Komatsu Harvesting Heads
Komatsu harvesting headsare characterized by versatility, reliability, speed, and strength. A new MaxiXplorer Head control system designed for track feller bunchers and excavator applications automates all headfunctions and collects harvest data through a new improved Windows® based operating system. Komatsu head models include 350.1 (23.6” cut, 2116 lbs.) and 360.2 (25.5” cut, 2745 lbs.) these heads are light, fast, and designed for early thinning and light harvesting work. The 350.1 is a three driver roller design available with multi-stem accumulator for small stem thinning and harvesting of biomass.
The new 365 head (25.6” cut, 2646 lbs.) is another three-roller drive design, and the light weight head is well suited to longer reach thinning. It features quick service points and grouped lubrication fittings. The 370.2 head (27.6” cut, 3240 lbs.) is fast with good feed power and speed to cover medium thinning to larger harvesting and processing jobs. The 370E (27.6” cut, 3527 lbs.) features a heavier frame for larger wood and is designed for tougher applications and when mounted on track harvesters and excavator based machines. www.komatsuforest.us
For over 30 years, Log Maxhas engineered reliable and productive harvesting and processing heads. The Log Max designgives our customers a competitive advantage in the marketplace. Many of its products can be installed on smaller equipment allowing for decreased total package price and overall fuel savings without compromising performance or uptime. There are many applications in the forestry market from first commercial thinning to final harvesting and processing. Log Max offers a wide range of products that fit these needs from the Log Max 928, weighing in at 923 lbs., to the Log Max 12000XT, weighing in at 9,900 lbs. If your work demands top performance, uptime, and support, the Log Max line offers a full range of options.
Quadco offers a full line of felling and harvesting heads with five different product lines to answer your needs and applications. High speed heads are available in 18-inch, 20-inch, 22-inch, and 24-inche maximum cut capacity, All heads come standard with patented Quadco tooth and disc system. And all models can be ordered with a 40 or 360degree tilt system.
Quadco is the distributor for the Keto Processing heads with two new models the 660 and 870. For more info www.quadco.com
The Titan 22 processing head features an additional valve section providing more flow to the drive system for greater speed and feed power, as well as to the butt saw for faster, cleaner cuts. It also features a heavy-duty frame designed to provide extra support where it’s necessary for the rigors of North American timber and conditions. As with all the Pierce and Denharco processing equipment, the Titan family is powered by Pierce’s Intellitec Measuring System. Independently owned and operated, Pierce builds all of its products in Portland, Ore., and has three service parts warehouses in North America to better serve your needs. Its superior product support and customer service include onsite training and troubleshooting, stocked warehouses, after-hours pickup, and emergency overnight delivery. And professional service technicians are available 7 days a week, after business hours, and on weekends.
Perhaps your customer’s application requires a larger processing head? Inquire about the Titan 23 — ideally suited, yet not exclusively, for a 25-29 metric ton machine. www.piercepacific.com
The PONSSE H7 harvester head provides enough feed power to handle larger trees. The maximum feed roller opening is 26 inches, and its unique grip geometry makes the handlingof large stems easy. The firm grip on trunks and the highly powerful feeding work hand in hand with the feedrollers and blade grip pressure, which can be freely adjusted during operation. Other innovative features include reliable radial piston motors, adjustable grip pressure for initial feed stages, lock connection of feed motors, control functions for front and rear delimbing blades and feed rollers, and controlled feed acceleration and deceleration.
The PONSSE H7’s short frame handles curved trees skillfully. It provides a self-adjusting and adaptive feed to the sawing window, which speeds up harvesting and ensures excellent sawing efficiency. The easy-to-use automatic features control the saw motion according to the tree diameter and blade position, guarantee fast cutting, and also increase the service life of the blade and the chain. Saw control calibration is achieved simply by the press of a button. The tilt force and speed are based on its superb geometry. The tilt also allows you to use the floating function. www.ponsse.com
The SATCO is a 25” single grip, two roller processing head that was identified and developed by SATCO Ltd for forest contractors who require a full processing head that is in a “not too big, not too small” range. The SATCO 325 stands up to the tough demands.
The SATCO 325 Processor has a 635mm (25”) diameter stem capacity and weighs in at 800-900k, lighter than a 26” processor, which means that you can get 1.2 to 1.5 meters more reach from a standard 30-ton base machine. This makes the SATCO 325 ideal for cut-to-length operations or merchandising out of the stack.
Key features include: a unique “hose through center” connection to the base machine, which allows the hoses to travel through the centerline of the attaching pins. This prevents over-bending of the hoses causing premature failure and protects the hoses from damage, especially in cut-to-length applications.
SATCO 325 Processors are constructed using high-grade materials and manufactured using the best robotic welding wire for a far superior weld. Key features include, among others: long life solenoids, removable covers for easy servicing, cast cutting edges for easy field replacement, SATCO® hose through center system, and heavy duty saw. www.satco.co.nz
Tigercat’s TH575 harvesting head is specifically designed to match the high performance capabilities of the Tigercat track carriers in harvesting, processing, and debarking applications. The heavy-duty structure provides longevity and high uptime in demanding harvesting and processing applications, and it is best suited to dedicated forestry carriers from 200-300 HP for harvesting softwood and hardwood in the 2-23 inch diameter range. The TH575 is equippedwith three knife arms and two fixed knives for excellent delimbing capability. The three-wheel drive system also achieves faster feeding speeds and superior feeding power. It features a unique measuring control with large diameter measuring wheel for improved accuracy, as well as a heavy-duty structure, taper-lock pins, isolation mounted valve assemblies and clean hose routings for high uptime. www.tigercat.com
Waratah’s 400-and 600-Series processing/harvesting heads can take on the toughest jobs in the woods and boost the bottom line. Designed for maximum productivity and minimal downtime, the Waratah HTH600-Series heads (HTH616, HTH622B, HTH623C, HTH624C, and HTH626) easily slice through large-diameter wood. The standard topping saw cleanly and easily processes forked trees and broken tops for the highest fiber yield. Each of the heads simplifies processing and has a durable hydraulic design. Moreover, service is trouble-free with standardized hydraulic, electrical, and mechanical components. The Waratah 400-Series processing heads — H412, H414, HTH460, and H480C — are all equipped with a four-wheeldrive feed that enhances productivity, with high-accuracy measurement, excellent delimbing, and multi-stem processing functionality.
The H412 is made for small wheeled and tracked machines, while the H414 is appropriate for mid-sized wheeled and tracked machines. The HTH460 handles a wide range of harvesting jobs, from first thinning to light regeneration harvesting. The H480C delivers excellent tree processing in all diameter ranges but is specially designed to tackle large timber.
TimberRite™ Measuring Control Systems are installed on all Waratah heads to manage workload through intelligent control systems, real-time information access, and wireless data transfer. www.waratah.net