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MOTOREX Magazine 2019 116 EN

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REPORT CONTINUED A rick of fuel wood: the exact location is recorded as GPS coordinates. Four powerful high-capacity wood chippers transform untreated timber into wood chips for heating. Innovative: dust-free wood chips that burn with low particle emissions. As there is only a small market for these specialpurpose vehicles, they are devised and constructed to inhouse designs. THE WOOD ENERGY CYCLE Forest Wood rick Chips Heating plant Ash disposal industry, process power, district heating or ambient heating. Each wood furnace takes just the right kind of chips for the given equipment. A HIGHLY MECHANIZED PROCESS Wood requires substantially less energy for conversion into fuel than other energy sources. Moreover, nearly 95 % of its associated economic value is generated in the country of origin. Accordingly, the company’s 43 employees strive relentlessly to minimize kilometers traveled and diesel fuel consumed per kWh of heat energy generated. By continually enhancing the efficiency of the equipment (high-capacity chippers, shredders, screening systems, wheel loaders, ash vacuums, haulage vehicles), they are achieving steady gains in these metrics. Without a high degree of mechanization, however, producing and distributing 220,000 cubic meters of chips per year and disposing of 1000 tonnes of wood ash in compliance with the law, without dust or harm to the environment, would be impossible. EQUIPMENT BUILT IN-HOUSE Amstutz can boast some impressive feats of engineering. Developing and building a high-capacity wood chipper, for example, can take up to 6000 hours of work. Drawings were once made by hand, but today the in-house engineering department uses 3-D software. The equipment is assembled in the company’s 14

Plenty of work to do: building a new high-capacity wood chipper takes about 6000 person-hours. After combustion, exhaust gases are passed through multiple filters in accordance with strict standards. Vacuum truck container for appropriate disposal of ash. watch?v=eeC0DTyIstc own workshop. Based on a MAN five-axle chassis and having an operating weight of some 40 tonnes, the high-capacity wood chipper is one of the company’s most imposing machines. Whenever lubrication challenges arise, MOTOREX is there with expert advice and the right product for every need. The longstanding collaboration between the companies is based on trust and professionalism. TURNKEY EQUIPMENT Besides supplying wood fuel, planning, building and operating wood chip furnaces for local heating networks, in part as general contractor, has been an important line of business since 2002. This allows Amstutz Holzenergie to provide customers and clients with expert comprehensive service in every aspect of wood energy production. In Switzerland alone, unused timber growth is estimated at between two and three million cubic meters per year – an abundant potential source of innovative wood energy well into the future. • TIMBER GROWTH IN SWITZERLAND annual unused timber growth: 2 – 3 million m3 average total used per annum: 5 million m3* *Source: Holzenergie Schweiz MOTOREX MAGAZINE 116 I SEPTEMBER 2019 15

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