HSZ series chain block is designed with a transmission mechanism of symmetrically arrangedtwo-step spur gears. It can auttomatically brake with the friction plate and pawl brake system.
| Model | HSZ-½ | HSZ-1 | HSZ-1½ | HSZ-2 | HSZ-3 | HSZ-5 | HSZ-10 | HSZ-15 | HSZ-20 | HSZ-30 | |
| Capacity (t) | 0.5 | 1 | 1.5 | 2 | 3 | 5 | 10 | 15 | 20 | 30 | |
| Standard lifting height (m) | 2.5 | 2.5 | 2.5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | |
| Test load (KN) | 6.13 | 12.25 | 19.6 | 24.5 | 39.2 | 61.25 | 122.5 | 196 | 245 | 392 | |
| Headroom (drawn close up) Hmin (mm) | 270 | 270 | 368 | 444 | 486 | 616 | 700 | 900 | 1000 | 1100 | |
| Chain pull to lift full load (N) | 210 | 330 | 390 | 330 | 390 | 420 | 450 | 475 | 450 | 475 | |
| No. of load chain pull lines | 1 | 1 | 2 | 2 | 2 | 2 | 4 | 6 | 8 | 12 | |
| Diameter of load chain (mm) | 6 | 6 | 8 | 6 | 8 | 10 | 10 | 10 | 10 | 10 | |
| Dimensions (mm) | A | 120 | 142 | 178 | 142 | 178 | 210 | 358 | 560 | 580 | 620 |
| B | 108 | 122 | 139 | 122 | 139 | 162 | 162 | 170 | 189 | 190 | |
| C | 24 | 28 | 34 | 34 | 38 | 48 | 64 | 82 | 82 | 90 | |
| D | 120 | 142 | 178 | 142 | 178 | 210 | 210 | 210 | 210 | 210 | |
| Net weight (Kg) | 9.5 | 10 | 16 | 14 | 24 | 36 | 68 | 110 | 155 | 180 | |
| Gross weight (Kg) | 12 | 13 | 20 | 17 | 28 | 45 | 83 | 150 | 193 | 230 | |
| Packing measurement (L×W×H, cm) | 28×21×17 | 30×24×18 | 34×29×20 | 33×25×19 | 38×30×20 | 45×35×24 | 62×50×28 | 65×53×30 | 70×46×75 | 90×58×110 | |
| Extra weight per meter of extra lift (Kg) | 1.7 | 1.7 | 2.3 | 2.5 | 3.7 | 5.3 | 9.7 | 15 | 19.4 | 30 |