Machine productivity of roadside chipping
The research was carried out in a flat Pinus radiata compartment near Mt Gambier in South Australia, with a cut-to-length harvesting system consisting of harvester and forwarder producing logs at roadside, which were then chipped by a Morbark B12 truck-mounted chipper. A Hitachi ZAxis 250L loader was used to feed the chipper. Logs were chipped straight into trucks with semi-trailers. The average tree size harvested was 0.12 m3.
The results showed that average chipper productivity was 59.4 tonnes per productive machine hour (PMH). Larger diameter logs resulted in higher chipper productivity. The chipper had fuel consumption figures of 72.6 litres (19.2 gal) per PMH, and the loader 25.1 litres (6.6 gal) per PMH. Waiting for chip trucks resulted in many delays at the operation. To access the bulletin, please contact Mark Brown at email@example.com or access the CRC website at www.crcforestry.com.au
Source: R&D Works
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