Tigercat FPT Powered 724G Feller Buncher
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Large Specalog for 521B/522B Track Feller Bunchers & Track Harvesters
521B/522B Track Feller Bunchers & Track Harvesters – ZTS (Zero Tail Swing) Power Train Operating Weights (without heads, standard counterweight) 521B/522B Track Feller Buncher Engine Model Cat® C9 ACERT™ 521B 27 501 kg 60,629 lb Gross Power 226 kW 303 hp 522B 32 528 kg 71,711 lb Track Harvester Configuration 521B 26 966 kg 59,450 lb 522B 31 993 kg 70,532 lb Cat 521B/522B Features Power Train The Cat C9 ACERT Tier 3 high torque engine provides excellent power, fuel economy, serviceability and durability. The Cat C9 ACERT is a dependable performer, while meeting all U.S. EPA emission standards. Hydraulics Closed Center hydraulic system with electronic programmable controls that produce excellent multi-function system uses; dedicated pilot, travel, implement and saw pumps. Operator Comfort The Cat purpose built forestry cab offers industry leading operator protection and comfort. Cab is designed and tested to meet 120% of machine operating weight, meets ROPS, FOPS, OPS, OR-OSHA and WCB regulations and standards. New ISO mounting system reduces noise and vibration, increasing operator comfort. Leveling System The Cat three (3) hydraulic cylinder tilting system is extremely durable and reliable, and is the only one in the industry to provide two way simultaneous function throughout the full range of tilting motion. Undercarriage The 521B/522B have a new D7 size undercarriage custom designed for reliable operation in tough harvesting conditions, from wet bottomlands to steep rocky slopes. Contents Power Train ..........................................................4 -
Missoula Technology and Development Center's 1995 Nursery and Reforestation Programs
Tree Planter's Notes, Vol. 46, No. 2 (1995) Missoula Technology and Development Center's 1995 Nursery and Reforestation Programs Ben Lowman Program leader, USDA Forest Service, Missoula Technology and Development Center Missoula, Montana The USDA Forest Service's Missoula Technology and Your nursery project proposals are welcome. They should Development Center (MTDC) evaluates existing technology and be submitted to Ben Lowman in writing or over the DG develops new technology to ensure that nursery and reforestation (B.Lowman:RO1A). Write a summary that clearly states the managers have appropriate equipment, materials, and techniques problem and proposes your desired action. The information for accomplishing their tasks. Work underway in 1995 is is used to determine priorities, to link you with others with described and recent publications, journal articles, and drawings similar problems or with solutions to your problem, or to are listed. Tree Planters' Notes 46(2):36-45; 1995. establish a project to solve the problem with appropriate equipment or techniques. The Missoula Technology and Development Center Pollen equipment (project leader-Debbie O'Rourke). (MTDC) has provided improved equipment, techniques, and Thirty years ago the Forest Service launched an expanded materials for Forest Service nurseries and reforestation tree improvement program. A network of seed orchards programs for more than 20 years. The Center has worked to with genetically superior trees was created in an effort to improve efficiency and safety in these areas, and throughout produce top-quality seed. These trees are now in the cone- the Forest Service. The Center evaluates existing technology bearing stage. Protecting the genetic quality of their seed is and equipment and develops new technology and equipment. -
Investigation of Feller-Buncher Performance Using Weibull Distribution
Article Investigation of Feller-Buncher Performance Using Weibull Distribution Ebru Bilici Forestry Department, Dereli Vocational School, Giresun University, Giresun 28950, Turkey; [email protected] Abstract: With the advancement of technology in forestry, the utilization of advanced machines in forest operations has been increasing in the last decades. Due to their high operating costs, it is crucial to select the right machinery, which is mostly done by using productivity analysis. In this study, a productivity estimation model was developed in order to determine the timber volume cut per unit time for a feller-buncher. The Weibull distribution method was used to develop the productivity model. In the study, the model of the theoretical (estimated) volume distributions obtained with the Weibull probability density function was generated. It was found that the c value was 1.96 and the b value was 0.58 (i.e., b is the scale parameter, and c is the shape parameter). The model indicated that the frequency of the volume data had moved away from 0 as the shape parameter of the Weibull distribution increased. Thus, it was revealed that the shape parameter gives preliminary information about the distribution of the volume frequency. The consistency of the measured timber volume with the estimated timber volume strongly indicated that this approach can be effectively used by decision makers as a key tool to predict the productivity of a feller-buncher used in harvesting operations. Keywords: forest operations; productivity; Weibull distribution; feller-buncher Citation: Bilici, E. Investigation of Feller-Buncher Performance Using 1. Introduction Weibull Distribution. Forests 2021, 12, Innovative management strategies will be necessary in managing forest resources, 284. -
Felling Introduction
Felling WDSC 422 1 Felling While performing felling operations, we have to consider to: minimize damage to log products maximize product value leave stumps as low as possible maximize the fiber utilization protect boundary trees, neighboring property, follow regulations such as BMPS, OSHA WDSC 422 2 Felling Methods Manual felling chainsaws Mechanized felling felling machines such as feller-bunchers and harvesters WDSC 422 3 Manual Felling Chainsaws are the main tools. are responsible for one of the most radical changes in logging technology in the 20th century. prompt rapid productivity gains. WDSC 422 4 Chainsaws Introduced to North America during World War II. Early models: heavy - 50 pounds or more two persons to operate them Today’s models: lightweight - less than 20 pounds and many less than 10 pounds powerful and fuel-efficient with less vibration and safety features WDSC 422 5 Procedures (Chainsaw Felling) Walk to tree Acquiring Felling Delimbing and topping 6 Mechanized Felling Mechanized equipment designed to fell trees became popular in the 1960’s. High quality, reliable hydraulic systems made the modern feller-bunchers and harvesters possible. Felling machines can be classified or described in terms of: the way the machine being operated, the felling head used WDSC 422 7 Felling Machines Felling devices or heads can be mounted on several types of machine carriers or prime movers. These are typically grouped into two types: Drive-to-tree machines Swing-to-tree machines WDSC 422 8 Drive-to-tree Machines Either rubber-tired or tracked machines which drive to each tree before cutting it. Less expensive to purchase and operate, and most widely used. -
Mobility Range of a Cable Skidder for Timber Extraction on Sloped Terrain
Article Mobility Range of a Cable Skidder for Timber Extraction on Sloped Terrain Andreja Đuka *, Tomislav Poršinsky, Tibor Pentek, Zdravko Pandur ID , Dinko Vusi´c and Ivica Papa ID Faculty of Forestry, University of Zagreb, Svetošimunska 23, 10000 Zagreb, Croatia; [email protected] (To.P.); [email protected] (Ti.P.); [email protected] (Z.P.); [email protected] (D.V.); [email protected] (I.P.) * Correspondence: [email protected] Received: 2 August 2018; Accepted: 27 August 2018; Published: 30 August 2018 Abstract: The use of forestry vehicles in mechanised harvesting systems is still the most effective way of timber procurement, and forestry vehicles need to have high mobility to face various terrain conditions. This research gives boundaries of planning timber extraction on sloped terrain with a cable skidder, considering terrain parameters (slope, direction of skidding, cone index), vehicle technical characteristics and load size (5 different loads) relying on sustainability and eco-efficiency. Skidder mobility model was based on connecting two systems: vehicle-terrain (load distribution) and wheel-soil (skidder traction performance) with two mobility parameters: (1) maximal slope during uphill timber extraction by a cable skidder based on its traction performance (gradeability), and (2) maximal slope during downhill timber extraction by a cable skidder when thrust force is equal to zero. Results showed mobility ranges of an empty skidder for slopes between −50% and +80%, skidder with 1 tonne load between −26% and +63%, skidder with 2 tonne load between −30% and +51%, skidder with 3 tonne load between −34% and +39%, skidder with 4 tonne load between −35% and +30% and skidder with 5 tonne load between −41% and +11%.These results serve to improve our understanding of safer, more efficient timber extraction methods on sloped terrain. -
Growinggoldsummer05.Pdf
KENTUCKY’S GROWING GOLD A PUBLICATION OF: KENTUCKY DIVISION OF FORESTRY FRANKFORT, KENTUCKY 40601 A SERVICE TO KENTUCKY’S FOREST PRODUCTS INDUSTRY AND TIMBERLAND OWNERS VOL. XLV, NO. 3 EDITOR: CHRISTOPHER G. NEVINS SUMMER 2005 THE FOLLOWING MARKED TIMBER FOR SALE IS A LISTING OF TIMBER MARKED BY THE KENTUCKY DIVISION OF FORESTRY FOR PRIVATE WOODLAND OWNERS. THE LIST WAS CURRENT AS OF DATE OF SUBMISSION TO THE PRINTERS. IF YOU WANT FURTHER INFORMATION ON MARKED TIMBER, PLEASE REFER TO THE "COUNTY GUIDE TO DISTRICT FORESTERS' OFFICES" INSIDE THE BACK COVER AND CALL THE APPROPRIATE DISTRICT FORESTER. MARKED TIMBER FOR SALE LOCATION SPECIES AND VOLUME CONTACT CENTRAL DISTRICT TRACT #1 ALLEN CO. RED OAK 15231 BEECH 2661 FRED OLIVER LOCATED NORTH OF YELLOW POPLAR 6115 MISC. OAKS 580 1437 LONGVIEW DR. SCOTTSVILLE, APPROX. 2 WHITE OAK 3881 CHERRY 248 BOWLING GREEN, KY 42104 MILES FROM JCT. OF HWY HARD MAPLE 3315 ASH 164 270-842-7137 31E &HWY 101, ON NORTH HICKORY 2985 BLACKGUM 120 SIDE OF HWY. 1332. TOTAL BF (DOYLE) 35300 29 ACRES 128 TREES MARKED TRACT #2 5 ACRES LOBLOLLY PINE 31340 119 TREES MARKED HART CO. YELLOW POPLAR 20249 SCARLET/SHINGLE OAK 2712 MITCHELL WADDELL LOCATED 10 MILES WEST RED OAK 14296 ASH 1894 3095 ROSEBURG RD. OF MUNFORDVILLE, ON WHITE OAK 9874 WALNUT/CHERRY 1468 CUB RUN, KY 42729 THE SOUTH SIDE OF HICKORY 4405 CHINKAPIN OAK 604 270-524-0113 HWY 88. HARD MAPLE 3880 MISCELLANEOUS 472 38 ACRES BEECH 3387 TOTAL BF (DOYLE) 63241 327 TREES MARKED www.kentuckyunbridledspirit.com 1 OCATION SPECIES AND VOLUME CONTACT CENTRAL DISTRICT NELSON CO. -
Northeastern Loggers Handrook
./ NORTHEASTERN LOGGERS HANDROOK U. S. Deportment of Agricnitnre Hondbook No. 6 r L ii- ^ y ,^--i==â crk ■^ --> v-'/C'^ ¿'x'&So, Âfy % zr. j*' i-.nif.*- -^«L- V^ UNITED STATES DEPARTMENT OF AGRICULTURE AGRICULTURE HANDBOOK NO. 6 JANUARY 1951 NORTHEASTERN LOGGERS' HANDBOOK by FRED C. SIMMONS, logging specialist NORTHEASTERN FOREST EXPERIMENT STATION FOREST SERVICE UNITED STATES GOVERNMENT PRINTING OFFICE - - - WASHINGTON, D. C, 1951 For sale by the Superintendent of Documents, Washington, D. C. Price 75 cents Preface THOSE who want to be successful in any line of work or business must learn the tricks of the trade one way or another. For most occupations there is a wealth of published information that explains how the job can best be done without taking too many knocks in the hard school of experience. For logging, however, there has been no ade- quate source of information that could be understood and used by the man who actually does the work in the woods. This NORTHEASTERN LOGGERS' HANDBOOK brings to- gether what the young or inexperienced woodsman needs to know about the care and use of logging tools and about the best of the old and new devices and techniques for logging under the conditions existing in the northeastern part of the United States. Emphasis has been given to the matter of workers' safety because the accident rate in logging is much higher than it should be. Sections of the handbook have previously been circulated in a pre- liminary edition. Scores of suggestions have been made to the author by logging operators, equipment manufacturers, and professional forest- ers. -
4-H Virtual Forest User's Guide Timberrr!
4-H Virtual Forest User’s Guide Timberrr! Concept Timber harvesting is a necessary and useful process for getting trees from the woods to the factories that make products we use in everyday life. This module will illustrate the timber harvesting process. This module supports the following Science Standards of Learning: Resources 4.8 d) forests, soil, and land 6.9 a) management of renewable resources (water, air, soil, plant life, animal life) Module Description Frame 1. The module opens with a title slide that contains the title “Timberrr!”, credits, and a voice shouting “Timberrrrrrrr!” Users will click on the trees located along the top of the screen to navigate through the module. Steps can be viewed in any sequence, but will be described here in order from left to right. Intro. This frame provides an introduction that addresses the importance of timber harvesting and the forest products industry to Virginia’s economy. The text reads as follows: “Timber harvesting is a necessary and important process for getting trees from the woods to the factories that make many of the products we use every day.” The second paragraph leads in to a quiz question, followed by four possible answers: “Virginia’s forests provide jobs for many people. For example, foresters might study, measure, and map trees and forests. Loggers harvest trees and take them to wood using industries or factories. Factory workers help turn these trees into products. Secretaries, bookkeepers, and managers help keep track of details so that the factories operate smoothly. “How many jobs do you think the forest industry and supporting businesses supply for Virginia’s citizens? Click on your answer below.” A) 1,350 B) 75,000 C) 126,319 D) 248,000 The correct answer is (D) 248,000. -
Downloading At
United States Department of MECHANIZED SYSTEMS FOR Agriculture ARVESTING ASTERN ARDWOODS Forest H E H Service Northern Research Station Chris B. LeDoux General Technical Report NRS-69 Abstract In the central Appalachian region, hardwoods traditionally have been harvested by chainsaw felling with trees and logs extracted from the forest to landings by rubber-tired skidders, bulldozers, and crawler tractors. In recent years, mechanized systems that include feller bunchers and cut-to-length (CTL) processors coupled with forwarders and clambunk and grapple skidders have been used increasingly to harvest Eastern hardwoods. Feller bunchers fell trees and pile stems or logs in bunches. CTL processors fell trees and delimb them, buck the stems into logs, and pile them in presorted bunches. Wood piles and bunches are transported to landings by a clambunk or grapple skidder or a forwarder. These system combinations for processing and transporting essentially eliminate the need for woods workers on the ground, a major advantage from a production and safety standpoint, and greatly reduce adverse effects on the site compared to chainsaw felling and conventional skidding. Feller buncher and CTL systems are reviewed, results of environmental impact studies are presented, and cost equations for a range of operating conditions in Eastern hardwoods are provided. The Author CHRIS B. LEDOUX is a research industrial engineer with the U.S. Forest Service’s Northern Research Station at Morgantown, West Virginia. Manuscript received for publication December 2009 Cover Photo 1. Cut-to-length processor (photo courtesy of Andrew 2 Whitman, Manomet Center for Conservation 1 Sciences); 2. Crawler dozer (photo courtesy of Caterpillar); 3. -
Occupational Safety Health & Environmental Care Learner Guide
Forest Ops: Feller Buncher © Commonwealth of Australia 2011 Page 1 of 122 © Commonwealth of Australia 2011 The views expressed in this learners guide do not necessarily represent the view of the Minister for Education or the Australian Government. The Australian Government does not give any warranty nor accept any liability in relation to the contents of this work". This work is copyright. You may download, display, print and reproduce this material in whole or in part or in modified form (retaining this notice) for your personal, non-commercial use or use within your organisation. If you use, display, or reproduce this material or a modified form of it in whole or in part within your organisation you must include the following words in a prominent location within the material in font not less than size 12: “Apart from any use as permitted under the Copyright Act 1968, all other rights are reserved. Requests and inquiries concerning reproduction and rights should be addressed to the Commonwealth Copyright Administration, Attorney Generals Department, Robert Garran Offices, National Circuit, Barton ACT 2600 or posted at http://www.ag.gov.au/cc. Funded under the Workplace English Language and Literacy (WELL) Program by the Australian Government Department of Education Employment and Workplace Relations Training material developed by Logging Investigation & Training Association (LITA). Mount Gambier, South Australia email [email protected]. LITA would like to acknowledge the following organisations from which material has been referenced and sourced: Hitachi Australia Tabeel Trading K&G Wright LV Dohnt & Co HVP Plantations Forestry SA Green Triangle Forest Products Worksafe Vic Department of Agriculture Fisheries & Forestry (DAFF) Government SA Primary Industries & Resources SA We would also like to acknowledge and thank the Forest Industry personnel who participated in trialling this resource. -
Pnw Gtr092.Pdf
ABSTRACT An operational test of a small, pro- totype running skyline yarder was con- ducted early in 1978. Test results indicate that this yarder concept prom- ises a low cost, high performance system for harvesting small logs where skyline methods are indicated. Timber harvest by thinning took place on 12 uphill and 2 downhill skyline roads, and clearcut harvesting was performed on 4 uphill skyline roads. Skyline roads were spaced about 46 meters (150 feet) apart and were up to 335 meters (1,100 feet) long. Delays caused by the yarder were insignificant. Production as high as 343 logs per day was achieved. KEYIJORDS: Logging equipment engineering, production studies(-forest operations, logging operations analysis/design, logging economics. Contents Introduction .............1 Yarding System ............1 Testsite. ..............3 Logging Layout ............3 Logging Operation. ..........4 Test Description ...........4 Test Results .............4 Summary. ...............7 Literature Cited ...........7 Yarding System The peewee yarder operates a running skyline system as shown in figure 1. MAIN LINE7 HAULBACK UN SLACK-PULLING/ LINE Figure 1.--Running skyline system. The running skyline system was chosen because it provides a combination of features which are not available with other cable logging systems. These include: high mobility due to minimum Introduction rigging and small, light lines; versa- tility due to the ability to log uphill An operational test of the prototype and downhill; and lateral yarding capa- peewee yarder was performed as part of bility for partial cut operations which a program to develop a system for is provided by the slack-pulling car- harvesting small logs in areas where riage. General specifications for the cable logging methods are required. -
Productivity and Cost of Manual Felling and Cable Skidding in Central
." .~ ~' Productivity and cost of manual felling f< 1 f:.I and cable skidding in central Appalachian hardwood forests Jingxin Wang* Charlie Long Joe McNeel John Baumgras chainsaw and skidding with a cable Abstract skidder. Time studies showed that hour- A field production stlldy was conducted for a manual harvesting system using a ly felling production increased while chainsaw and cable skidder in a central Appalachian hardwood forest site. A partial cut skidding productivity decreased from was performed on a 50-acre tract with an average slope of25 percent. Felling time per the treatments 45 percent, to-60 percent, tree was most affected by diameter at breast height and the distance between harvested and to 75 percent of residual stocking. trees while skidding cycle time was mainly affected by turn payload size and skidding Regression equations were later devel- distance. Productivity of chainsaw felling was 362 ft.3 per productive machine hour oped based on the above time-study data (pMH) (2.23 thousand board feet [MBF]/PMH) with a wlit cost of$8.0/cunit (100 cu- (Brock et a1. 1986), which can be used bic feet) ($13.0/MBF). Cable skidding productivity was 289 ft.3/pMH (1.78 MBF/ for estimating production rates and costs PMH) and unit cost was $27.0/cunit ($50.0/MBF). The balanced manual harvesting for similar thimling operations. system could produce 7,236 ft.3 per week (44.63 MBF/week) with unit cost of Howard (1987) took a different ap- $37.0/cunit ($60.0/MBF). proach to estimating timber harvesting production and cost with cable skidders by collecting shift-level data on fuel consumption, repairs, maintenance, different machine and harvest prescrip- and other operating costs and combined GenerallY the more mechanized the tions.