| Model | HGT-I | HGT-II |
| Material | Stainless steel | Stainless steel |
| Groove quantity | 16 | 12 |
| Groove width | 12.7mm | 25.4mm |
| Max sample | 150-1200g | 300-2000g |
| Shape size | 315*240*260mm | 420*240*280mm |
| Application range | Rice, wheat and so on middle and small seeds | Bean, corn and so no big seeds |
| Specification | Middle and small | Big |