Performance, Capability and Costs of Small

The authors tested two mini-yarders, one for uphill and the other for downhill extraction. The two machines were modern commercial models, offering state-of-the-art yarding technology on a miniature scale and at a much lower cost than required for purchasing a full-size tower yarder. The two units must not be regarded as alternative, but rather as complementary, since they offer different.

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Small Cable Yarder

 · On uphilling you simply feather the mainline brake to allow the carriage to run down the hill and then you floor that yarder to bring the carriage back up the hill with the load of logs. On the flats or downhilling you need a seperate line the haulback which needs to be used in unison with the mainline to move the carriage as gravity won't take it where you want it to go.

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USA

A small, variable-speed yarder is provided with main, haulback and slack-pulling drums, each containing a planetary drive transmission with provisions for dual power inputs. A variable interlock mechanism controls the relative speed of the haulback drum to the two.

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Productivity and cost of a small

(). Productivity and cost of a small-scale cable yarder in an uphill and downhill area: a case study in South Korea. Forest Science and Technology: Vol. 14, No. 1, pp. 16-22.

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Small Cable Yarder

 · Specially after mounting a tranny and winches:D Tree Felling and Rigging.

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Surface Soil Disturbance and Changes in Soil Properties …

The U.S. Department of Energy's Office of Scientific and Technical Information OSTI.GOV Technical Report: Surface Soil Disturbance and Changes in Soil Properties After Felling and Yarding of Fuelwood Using a Small Cable Yarder.

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Information about small cable yarders

Small Yarder's usually have a short tower 10 to 30 feet average. And have from 2 to 8 guylines depending on how the tower is attached to the yarder. Some are of the free standing type and require many guy lines, others are mounted to the machine securely and only require 3 or 4 lines, obviously the fewer lines you need to hook up the more convenient it is.

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Miniature Hyster Yarder by Michael Belenski

Though his Tonka T-9 tractor was older and already had thousands of hours in the dirt, it was still in plenty good shape to use as a yarder/tower carrier. Michael selected a Hyster triple-drum winch and the 90' six-guyline 'Porta-Tower' setup to go with it.

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(PDF) Yarding productivity of tree

productivity of tree-length harvesting using a small cable-yarder in steep slope, South Korea, Forest.

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South African Cable Yarding Safety and Operating …

South Africa has a unique combination of terrain conditions, road spacing, tree sizes, cable yarder sizes and configurations amongst other variables. Forest Engineering Southern Africa (FESA) responded by compiling the South African Cable Yarding Safety and Operating Handbook, which was first published in .

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Forest Logging Machines : Oregon Association of Loggers

Small Swing Yarder Small-log cable lifter; cable is rigged from the short tower (40-60' tall) to the far side of the harvest area; a carriage rides the cable and connects to logs using additional cables; logs or whole-trees are lifted and carried on.

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Information about small cable yarders

Small Yarder's usually have a short tower 10 to 30 feet average. And have from 2 to 8 guylines depending on how the tower is attached to the yarder. Some are of the free standing type and require many guy lines, others are mounted to the machine securely and only require 3 or 4 lines, obviously the fewer lines you need to hook up the more convenient it is.

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Cable yarding Research Papers

View Cable yarding Research Papers on Academia.edu for free. The authors tested two mini-yarders, one for uphill and the other for downhill extraction. The two machines were modern commercial models, offering state-of-the-art yarding technology on a miniature.

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Costs of harvesting forest biomass on steep slopes with a …

Cable yarding can reduce the environmental impact of timber harvesting on steep slopes by increasing road spacing and reducing soil disturbance. To determine the cost of harvesting forest biomass with a small cable yarder, a 13.4 kW (18 hp) skyline yarder was tested on two southern Appalachian sites.

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Over and above slopes and wetlands: extracting timber …

Cableway: Small cableway from Maxwald company Length of corridor: up to approx. 250 m Carriage weight: 40 kg Lifting capacity: up to kg (depending on skyline) Area covered in the study Stand: Mixed stand, 60-80 years old Location: Slopes in.

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Perspectives on Central European Cable Yarding Systems

art of cable yarding technology, and the available information is spread out. The paper aims (1) to present the state of technology for both, yarder technology, and cable-based harvesting systems (harvest layout, work design, material and information flow), and (2).

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Productivity and cost of a small

(). Productivity and cost of a small-scale cable yarder in an uphill and downhill area: a case study in South Korea. Forest Science and Technology: Vol. 14, No. 1, pp. 16-22.

Live Chat »

Surface Soil Disturbance and Changes in Soil Properties …

The U.S. Department of Energy's Office of Scientific and Technical Information OSTI.GOV Technical Report: Surface Soil Disturbance and Changes in Soil Properties After Felling and Yarding of Fuelwood Using a Small Cable Yarder.

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(PDF) 5

For this report we chose to stay with small cable-yarding systems of 10,000-pound line pull or less. We also included some unique monocable systems. The Jewell/Allied Power Products, Inc. Yoader (combination yarder and loader) was included for its unusual flexibility-it can be used to shovel-log, load logs at landing, shotgun log, and it has a slack thrower for tongs.

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CABLE YARDING SYSTEMS HANDBOOK

Cable yarding systems handbook. --

This was a little yarder I made years ago to yard small alder trees that the aluminum smelting plants bought from me. It sat for many years until a friend of.

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MMForstTechnik

The SYNCROFALKE ® is a all-terrain cable yarder, which allows working uphill, downhill and in flat terrains with highest performance. Special features of this machine type are: The working principle of the winch unit is based on two big drums with the two working.

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Performance, Capability and Costs of Small

The authors tested two mini-yarders, one for uphill and the other for downhill extraction. The two machines were modern commercial models, offering state-of-the-art yarding technology on a miniature scale and at a much lower cost than required for purchasing a full-size tower yarder. The two units must not be regarded as alternative, but rather as complementary, since they offer different.

Live Chat »