SHUANGNIAO MACHINERY, specializing design and manufacturing of electric chain hoist, manual chain hoist, lever hoist and various high tensile sling assembly, is a group corp., which consists of Shanghai Shuangniao Machinery Co., Ltd., Shuangniao Machinery Co.,Ltd., also. It is the largest private enterprise for HOISTING MACHINERY in China.

Model   HSZ-0.5A HSZ-1A HSZ-1.5A HSZ-2A HSZ-3A HSZ-5A HSZ-10A HSZ-20A Capacity tons 0.5 1 1.5 2 3 5 10 20 Standard lift m 2.5 2.5 2.5 3 3 3 3 3 Running test load Kn 7.5 15 22.5 30 45 75 150 300 Effort required to lift rated load N 231 309 320 360 340 414 414 414x2 Strands of load chain   1 1 1 1 2 2 4 8 Load chain diameter mm 6 6 8 8 8 10 10 10 Dimensions(mm) A   131 140 161 161 161 186 207 215 B   127 158 174 187 199 253 398 650 C   270 317 399 414 465 636 798 890 D   35 35.5 45 42.5 50 64 85 110 K   30 28 36 33.5 40 50 64 85 Net weight kg 10 12 19 20 27 45.5 83 193 Packing measurement cm 22x15 x19.5 23x18 x19.5 28x18 x19.5 28x21 x24 32x21 x26 40x21 x31 50x41 x21 64x38 x64 Extra weight per metre of extra lift kg 1.7 1.7 2.3 2.3 3.7 5.6 9.7 19.4