... , throughput in 110-1500m³ / h4). Long service life, the chain of high-quality alloy steel heat treatment process, high strength. ... three years.5). run a smooth, reliable, short section from the chain sprocket runtime impact is small, trouble-free operation over 30 ... and excavating phenomenon, less power than the chain hoist saving 30%7). small floor area, for the same delivery amount elevator, NSE ...