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A skyline yarder can pull in 5 to 10 logs at a time, using separate chokers. The pulleys are mounted on towers or cranes, other trees, ridges, or, in rare cases, helium balloons. Satellite photograph of industrial-scale skyline logging in the Tierras Bajas project in eastern Bolivia, showing deforestation and its later associated replacement by ...
Cable logging, also referred to as skyline logging, is a logging method primarily used on the West Coast of North America with yarder, loaders, and grapple yarders, but also in Europe (Austria, Switzerland, Czech Republic, France, Italy). The cables can be rigged in several configurations. There are two classes;
A yarder is piece of logging equipment that uses a system of cables to pull or fly logs from the stump to a collection point. [1] It generally consists of an engine, drums, and spar, but has a range of configurations and variations, such as the swing yarder. Clyde Skidder at Marathon Logging Camp near Newton, MS ~1921 Madill 124 Yarder. An ...
A swing yarder is a mobile piece of heavy duty forestry equipment used for pulling logs from the woods to a logging road with cables. The swing yarder is also known as a grapple yarder . In any logging operation, it is necessary to transport the harvested tree from the stump to a landing for transport to market (usually on a truck).
A terminal tractor Terminal tractor at the Port of Dover.. A terminal tractor, known in the United States as a shag truck, shunt truck, spotter truck, spotting tractor, yard truck, yard shifter, yard dog, yard goat, yard horse, yard mule, yard jockey, yard spotter, hostler, or mule, is a kind of semi-tractor intended to move semi-trailers within a cargo yard, warehouse facility, or intermodal ...
[2] [3] They later built logging yarders and aerial tramways, cable cars or ropeways. [4] Lidgerwood winches had at least two specific railroad maintenance uses, and were used by railroad customers to move railroad freight cars into position for loading and unloading (and to move other cars out of the way).
Forestry Forwarder Ösa 250. A medium-sized forwarder piling logs. A forwarder is a forestry vehicle that carries big felled logs cut by a harvester from the stump to a roadside landing for later acquisition.
Bucket wheel excavators in Garzweiler surface mine, Germany.Note the 40-ton CAT wheeled dozer at lower left for size comparison. A bucket-wheel excavator (BWE) is a large heavy equipment machine used in surface mining.