The series heavy-duty off-set disc harrows are mainly used for cleaning away stubble of plants before tillage, or uncultivated land and in sticky heavy clay soil fields. They could also be used as a plough for primary tillage in dry cultivated fields. The surface of the field after harrowing is level and the crushing and clearing ability of the harrow is satisfactory.
The series products are all fitted with hydraulic rubber wheel for transportation. They are easy to be hook up, simple to be adjusted, and easy to be transported and change direction on the edge of fields.
| Model | Unit | 1BZ-1. 8 | 1BZ-2. 2 | 1BZ-2. 5 | 1BZ-3. 0 | 1BZ-3. 4 |
| Name | The 16-blades middle-duty harrow | The 20-blades middle-duty harrow | The 24-blades middle-duty harrow | The 28-blades middle-duty harrow | The 32-blades middle-duty harrow | |
| Overall dimension | cm | 480*200*134 | 482*244*134 | 532*288*134 | 532*332*134 | 582*376*134 |
| Weight | kg | 1050-1100 | 1250-1300 | 1380-1430 | 1500-1550 | 1650-1700 |
| Working width | m | 1. 8 | 2. 0 | 2. 5 | 3. 0 | 3. 4 |
| Working depth | cm | 20 | 20 | 20 | 20 | 20 |
| Blade spacing | mm | 230 | 230 | 230 | 230 | 230 |
| No. of disc | pcs | 16 | 20 | 24 | 28 | 32 |
| Dia. of disc | mm | 660 | 660 | 660 | 660 | 660 |
| Transport clearance | mm | >160 | >160 | >160 | >160 | >160 |
| Productivity | ha/h | 1. 1 | 1. 3 | 1. 4 | 1. 7 | 1. 9 |
| Matched power | kw | 44-55 | 52. 9-66. 2 | 55-73. 5 | 58. 8-88 | 66. 2-100 |
| Linkage | Trailed | Trailed | Trailed | Trailed | Trailed |