No. Tech SGB420/30(40) SGB520/40 SGB620/40(55) 1 Delivery volume(t/h) 80(100) 120 150 2 Factory length(m) 100 100 80(100) 3 Head height(mm) 512(620) 620 620 4 Chain speed(m/s) 0.79(0.86) 0.86 0.86 5 Electric motors Model number JDSB30(DSB40) DSB40 DSB40(55) Power(kW) 30(40) 40 40 (55) Number of revolutions(r/min) 1470 1470 1470 Voltage(V) 380/660 380/660 380/660 6 Scraper chain Form Side double-stranded Side double-stranded Side double-stranded Specifications(mm) 14Ã?50(18Ã?64) 18Ã?64 18Ã?64 Breaking load(KN) â?¥190 â?¥320 â?¥320 7 Reducer transmission ratio 1:22.24(1:24.56) 1:24.56 1:24.56 8 Middle slot size (L x W x H) 1200Ã?420Ã?150 (1500Ã?420Ã?180) 1500Ã?520Ã?180 1500Ã?620Ã?180 9 Total weight(t) 10.3(13) 14 15 -