In the study, we have created a database with the specifications of 12 mechanized slash bundlers from different manufacturers, which are availible on the market. The bundlers saw significant development in the 1990s, and it seemed that they would become a standard in forestry. However, their use has been retained in only two European countries. As a research method, we employed a morphological analysis of the machines. We found that the manufacturer Monra offers the heaviest bundlers (9000 kg). Additionally, the bundlers from this manufacturer are the longest (7020 mm) and the widest (2586 mm). The lightest and shortest machines are offered by the company Forest Biomass Baler Lzb (2145 kg, 2870 mm), which allows for manual control. Only the machine from the manufacturer Fixteri includes a processing head. The narrowest machines are offered by the company Pinox (1800 mm). The highest productivity is offered by the Anderson Biobaler (40 units/hour), and the lowest productivity is provided by the company Valmet (25 units/hour). Manufacturers Pinox, Valmet, and Fixteri produce the longest bundles (3500 mm), while the shortest bundles are produced by Dingoma (2400 mm). The largest bundle diameter is produced by the Anderson Biobaler (1200 mm), and the smallest by Forest Biomass Baler Lzb (500 mm). We found that the dimensions of the bundlers increase with the mass of the bundlers, and that the height of the bundlers increases with their width.
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