Materials: Q355B & NM400 Main Parameters MODEL LDB120 LDB200-1 LDB200-2 LDB300 LDB350-1 LDB350-2 LDB450 boom length(mm) 7100 8220 10000 10000 11000 12000 13000 arm length ( mm) 5900 7160 8000 8000 9000 10000 11000 Weight(kg) 3000 4000 4200 5200 6000 6500 7000 Max dig depth(mm) 9000 11340 12200 12200 14500 16100 18000 Max. extensive scope(mm) 12500 15100 17600 17600 19600 21600 23600 Max. dig height(mm) 11300 12510 13500 13720 14920 16100 17300 folding height(mm) 2900 2980 3040 3210 3210 3400 3400 bucket capacity(m3) 0.3 0.5 0.4 0.4 0.5 0.6 0.6 Suit Excavator tonnage(ton) 12 20 20 30 35 35 45